SiriusXM Satellite Radio (info for techies)
Caveats: this page contains a lot of technical information.
- If you live in a large urban community with more than a million people
then you are most likely being served from a TERRESTRIAL REPEATER. This
means that 90% of the information below will be of little use to you.
- You do not need to know this stuff in order to use or enjoy your
satellite radio. Like shortwave radio enthusiast (a.k.a. ham radio)
information of yesteryear, this web page contains information targeted
toward people wishing to investigate further. (like the two socially awkward people to the right
:-)

In
his 1992 non-fiction book on telecommunications titled "
How
the World Was One", Arthur C. Clarke explained that since satellite radio
could not be
jammed by
repressive regimes and governments (as often happened in the short-wave
radio spectrum), that this technology would promote democracy
throughout the world. Clarke didn't mention "the internet" which was just trickling
down to the general public at that time, but certain countries today are actively
filtering web content which means that satellite radio is still the preferred
method for obtaining the truth. Satellite radio aside, North American democracy
is in decline partly due to the complicity of:
- commercial news: For commercial reasons, the U.S. press was recently
found (in a comprehensive international study) to be only the fifty-third-freest
press in the world. (In 1970, American news was published by ~ 40
companies; in 2012 this number has dropped to 6)
- politically-biased news publishing corporations (FOX NEWS, for
example, has become the unofficial propaganda purveyor of the US
Republican party; they are 10% news and 90% politically biased
commentary)
- political suppression of "public broadcasters" like NPR. Commercial
right-wing interests have even managed to reduce funding for the BBC.
- entertainment-news publishing businesses (people are dying all over
the world while North America wastes time speculating about the minutia
of Hollywood stars)
- internet news: here the information is generated so quickly that it
rarely is checked for spelling, grammar or accuracy. The title "Internet
Journalism" seems an oxymoron and I fear humanoty will need another 20
years to get this information source anywhere near where newspapers were
in 1990 before they were taken over by large corporations
Since early 2006, the only factual news comes to me from international sources
on my Sirius satellite radio. Kudos to the
BBC World Service.
Sirius-XM Links:
Canadian Links:
-
Still maintaining three websites in 2012? (I am still confused)
- co-owned by:
Canadian Satellite Radio Holdings Inc., Canadian Broadcasting Corporation (CBC), Slaight Communications
and SiriusXM (USA)
- 1.8 million Canadian subscribers as
June 2011
- Canadian snowbirds can now listen to CBC and BBC in Florida,
Arizona, as well as the Caribbean (my Canadian radio worked 100% of the
time on the beach in Cancun, Mexico as well as Punta Cana, Dominican Republic)
- Optional Accessories from Canadian Sources
American Links:
Satellite Technology
Three Sirius satellites loop through a figure-eight
pattern over the western hemisphere, once every 24 hours.
Two XM satellites are stationary over the North
American equator.
All satellites are considerably higher than this animation suggests.
Sirius
Apogee: 47.232 Km (29,348 mi)Perigee: 24.337 Km (24,337 mi)
XM
Apogee: 35.788 Km (22,237 mi)Perigee: 35.782 Km (22,233 mi)
Where are the satellites at
this very moment in time?
- SIRIUS-1 - Orbital Data @ Heavens-Above
- SIRIUS-2 - Orbital Data @ Heavens-Above
- SIRIUS-3 - Orbital Data @ Heavens-Above
- Starry Night Pro 6.x (astronomy software for your PC)
Click
here to learn
how to add "Sirius satellite definitions"
into the Starry Night Pro satellite database.
According to Starry Night you should be
able to receive the Sirius signal anywhere in the Western Hemisphere including
the Caribbean, Alaska and Hawaii. At higher altitudes (like in aircraft)
you may be able to receive the signal intermittently in Western Africa and
Ireland. For best reception, aim your antenna in the direction of the center
of the figure eight.
| Fringe Location |
Lowest Latitude |
Highest Latitude |
Signal Quality |
Always See One Satellite? |
| Caribbean |
30' |
80' |
great |
y |
| Alaska |
10' |
70' |
ok |
y |
| Hawaii (on the beach) |
10' |
45' |
so-so |
y |
| West Africa (on the beach) |
10' |
28' |
bad |
n |
STARMATE-1 "Home Installation" Notes:
- The following notes refer to my new (2006-02-xx) STARMATE-1
ST1C (a Canadian version of ST1).
- The SIGNAL STRENGTH meter did not work until after service activation
(this is fixed in subsequent models)
(MENU ::
DOWN ARROW four times to SIGNAL INDICATOR :: SELECT)
- SAT - displays satellite signal strength
- TER - displays terrestrial repeater signal
strength (only present in densely populated cities like Toronto,
Montreal, New York, Los Angeles, etc. Originally provided
as an alternate signal source for vehicles driving between very tall
buildings, under bridges, or through tunnels. Your antenna does
not require a view of the sky in Toronto because the terrestrial
repeater is on the
C. N. Tower)
- As is true with all satellite equipment,
antenna placement is very important
and, the antenna should have an unobstructed line-of-sight path to the
satellite:
- I started off using the Folding Windowsill Antenna
from the home-docking kit. Sirius documentation tells people in
Southern Ontario to place the antenna into a West-facing window
but, in my case, the signal strength meter never rose above level
3 bars (which
I think is some sort of minimum display level because you always see 0 or 3 but never 1 or 2)
- So I attached the Folding Windowsill Antenna
to then end of a 1 m (3 ft) wooden stick, then held it out of a
second story window. This resulted in a level of
6 bars
- Continuing, I partially-inserted two screws side-by-side at the
one third mark (about
30 cm or 12 in) from the antenna end of the stick, then hung the stick (via
the hook screws) from the rain gutter. The antenna was now
sitting about 30 cm (12 in) above the rain gutter which resulted in a signal
level of 8 bars
- The animated diagram above shows that an unobstructed antenna
located in North East USA (or South East Canada) will receive satellite
signals from the Southern Sky through to the North Western Sky.
I live at the edge of a wooded lot where tall trees totally block
my view of the southern sky. This means I must do everything possible
to make sure my antenna has an unobstructed view of the remaining
sky (West through to the North West).
- Technical side note:
These radios operate in the frequency range of 2.3 GHz (gigahertz)
which means the signal is beginning to take on the characteristics
of visible light (like not being able to going around corners or
go through wood).
For best reception the antenna must be able to "see the
satellite".
- I have just (2006) installed a Sirius Outdoor Home antenna which
is directly compatible with my STARMATE-1 (I thought I might need
an RG-58 to RG-174 conversion widget but this was not
necessary). Note that all satellite radio antennas contain a built-in
LNA (low noise amplifier) which is powered by your receiver so make sure that
antennas without "a Sirius brand" do not overload your receiver's
antenna power supply.

Notes:
- This omnidirectional antenna seems to work best when:
- Major effect: the "flat top" of the disk is parallel to the sky
- Minor effect: the "bottom
of the Sirius label" painted on the top of the antenna
points toward the satellite figure-8 crossover point in Minnesota. I
temporarily mounted my antenna on a pole with the disc parallel to the sky
then rotated the pole until I had a rock solid signal of
10
bars. Depending
upon your location (see the AIM THE ANTENNA charts above)
you may need to rotate your antenna to a different location.
Quote
from the installation instructions: For correct operation and
best reception of the SIRIUS signal, it is important that the outdoor
antenna is located in a place where it will have a clear view of the
SIRIUS satellites in the sky. Obstructions such as bushes, trees, other
homes or buildings, overhangs, soffits, chimneys, gables, dormers, etc.,
will impair or prevent the antenna from receiving the signal. The best
reception is obtained if the pod (disk) portion of the antenna (where
the SIRIUS logo is printed) has a clear 360 degree view of the sky
within an inverted cone shaped area shown in the instructions (or
imagined here).
- I did not want to drill any holes into the exterior of my house so I
used two pieces of scrap lumber to manufacture a small wooden "T". The
inverted "T" is lying flat on the roof with the horizontal portion of
the "T" (a short 2x4) positioned in the rain gutter. The antenna is fixed to the
vertical end of the "T" (a slightly longer 1x2).
- This same product in 2012 employs an RG-6 connector
and cable
Partial Antenna Chart
Antenna Product |
Description |
Antenna Output |
LNA Gain |
LNA Current |
Notes |
| SIR3 |
Magnet Roof Mount for Cars |
|
36 dB |
170 mA |
- Included with STARMATE ST1 and STARMATE ST1C (Canadian)
|
| Sirius Indoor-Outdoor |

|
|
36 dB |
170 mA |
- Included with STARMATE home kit described below
- comes
with 20 foot (6 m) RG-174 cable and SMB plug
- Good enough for large communities employing a TERRESTRIAL
repeater
|
Sirius Outdoor Home Sirius XM
Universal |

|
1 dBiC
|
42 dB |
160 mA |
- This LNA is 4 times more powerful than 36
dB models
- remember that each 3 dB is a doubling
- 42 dB - 36 dB = 6 dB
- 6 dB / 3 dB = 2 doublings or
4 times
- connector + cable specs for 2006
version (Sirius branding)
- Highly Recommended for home use
- connector + cable specs for 2012 version (Sirius
XM branding)
|
| SIR4 |
Trunk/RV Clip Mount |
|
36 dB |
?
|
- looks similar to SIR5 Marine antenna
|
| SIR5 |
Marine Antenna |
|
36 dB |
170 mA |
- looks similar to SIR4 Trunk/RV antenna
|
| SIR6 |
Home |
1 dBiC
|
42 dB |
165 mA |
- This LNA is 4 times more powerful than 36 dB models
- remember that each 3 dB is a doubling
- 42
dB - 36 dB = 6 dB
- 6 dB / 3 dB = 2 doublings or 4 times
|
| SIR-EXT50 |
50 foot Extension |
|
10 dB |
? |
- Includes a 10 dB inline amplifier
|
| Shakespeare SRA-40 |
Marine |
|
?
|
? |
- replaces SRA-30
|
| Shakespeare SRA-30 |
Marine |
|
36.5 dB |
140 mA |
- replaced by SRA-40
|
STH1 STH1C (Canadian) |
STARMATE Home Kit |
|
n/a |
n/a |
Contains:
- Sirius Indoor-Outdoor Home Antenna
- "120
Volt AC" to "12 Volt DC" power adapter
- bookshelf docking stand
- single mini-jack to dual RCA jack audio
cable
- Highly Recommended for home use
- Only used with first generation receivers (e.g. Starmate-1)
|
SUPH1 SUPH1C (Canadian) |
STARMATE Home Kit |
|
n/a |
n/a |
Contains:
- Sirius Indoor-Outdoor Home Antenna
- "120
Volt AC" to "5 Volt DC" power adapter
- bookshelf docking stand
- single mini-jack to dual RCA jack audio
cable
- Highly Recommended for home use
- Used with modern receivers
(Starmate-2 and higher)
|
SIRSP/SIR-SP (Splitter) |

|
|
n/a |
n/a |
- Required to connect newer antennas to older receivers
- One plug is labeled SAT while the other is labeled TER
|
| DBS Combiner/Splitter |
 |
|
n/a |
n/a |
- Required if you want your Sirius external antenna to share the wire
used by your existing satellite TV.
- Contains connectors for RG-6 and
RG-58.
|
| Pixel Pro-500 Antenna |
 |
12 dBi |
35.5 dB |
? |
- This high gain antenna produces 12 dBi (which is 5 dB more more powerful
than any other antenna). Since the built-in LNA provides 35.5 dB of gain,
the resultant signal strength is 47.5 dB
- Caveat: this antenna is
"highly directional" so should only be installed by professionals
|
- So for now it looks like I must operate my STARMATE from a second floor
office but I've still got a problem since my stereo is on the first floor.
So here are two possible options:
- enable the "FM transmitter" option on the STARMATE
selecting an FM frequency that is relatively quiet in your community,
then tune your stereo to the same spot
- you may need to tack on a single 50 cm (20 inch) wire to the antenna
screw of your FM receiver.
- if your STARMATE is far away from your stereo and your signal is
weak, you may need to buy an short external FM transmitter antenna (these
cost about $6.00). In a bind, you can
make one by locating an old mono earphone jack from a 1960s
transistor radio. Cut off the ear piece then separate the two
plastic wires (discard the wire going to the plug sheath which
corresponds to ground). The ideal length is 50 cm (20 inches).
Midband Calc
: (108-88) / 2 + 88 = 98 MHz
Speed of Light in a vacuum :
300,000,000 m/s
Quarter wave calc for 98 MHz (in vacuum):
300/98/4 = 0.76 m (30 in)
Quarter wave calc for 98 MHz (in air) :
200/98/4 = 0.51 m (20 in)
- in rarer instances you may not find a quiet location on your FM
dial so may need to purchase an external third party FM transmitter.
(mandatory for college dorms)
- purchase SIR-EXT50 which will add a 50 foot (15 m) extension
to your antenna wire. Since we're using frequencies in the neighborhood
of 2.32 GHz (2,320 MHz) it is not wise to
rig up a DIY (do-it-yourself) extension unless you've got prior experience
in this area. Also, a short circuit on the antenna line can damage the antenna
power supply in your radio.
Some
Common Uses Of The Radio Frequency Spectrum:
| Frequency |
Use |
| 530-1650 KHz |
AM Radio |
| 27 MHz |
Walkie-Talkies, Garage Door Openers, etc. |
| 54-72 MHz |
NTSC (analog) TV - VHF channels 2-4 |
| 76-88 MHz |
NTSC (analog) TV - VHF channels 5-6 |
| 88-108 MHz |
FM Radio |
| 174-216 MHz |
NTSC (analog) TV - VHF channels 7-13 |
| 470-890 MHz |
NTSC (analog) TV - UHF channels 14-83 |
| 2.320 GHz |
Sirius + XM radio |
| 2.450 GHz |
Microwave Ovens |
| 2.4 GHz |
802.11 b
802.11 g
wireless internet (wi-fi) |
| 2.4 / 5.0 GHz |
802.11 n
wireless internet (wi-fi) |
| 5.0 GHz |
802.11 a
wireless internet (wi-fi) |
| 10 GHz |
1010 Radar Satellite TV Services: 10-18
GHz - Ku Band 18-26
GHz - K Band 16-40
GHz - Ka Band
(a.k.a. K3 Band) |
| 100 GHz |
1011 (microwaves) |
| 1 THz |
1012 (far infra-red) |
| 10 THz |
1013 (thermal infra-red) |
| 100 THz |
1014 (infra-red) |
| 1 PHz |
1015 (visible light) |
- 2006
"Sirius Outdoor Home" Info:
-
Electrical power: 160 ma (supplied by your radio)
- Gain: 42 dB
- Antenna connector: Female
SMA (tiny hex
cap)
- Cable connector at antenna end: Male
SMA (tiny hex
cap)
- Cable Type: RG-58
- Cable connectors at receiver end: both
SMB (required
by your radio)
- 2012
"Sirius XM Universal Outdoor Home" Info:
- Electrical power: 160 ma (supplied by your radio)
- Gain: 42 dB
- Antenna connector: Female
F-connector
- Cable connector at antenna end: Male
F-connector
- Cable Type: RG-6 (various lengths: 25
f, 50 f, 100 f)
- Cable connector at receiver end: Male
F-connector
- Comes with model: SRS-2VB splitter (all female
F-connectors)
- Comes with two RG-174 jumper cables: RG-6 Male to
SMB (required
by your radio)
Note: you can purchase these jumpers separately for
about $10.00 each
- More info about the STARMATE ST1 and ST1C
- this is a sophisticated digital computer device that can simultaneously
receive signals from 2 of 3 satellites and 1 terrestrial ground station
- buffered audio will play for approximately 7 seconds after removing
the antenna connector
- reinstalling the antenna connector will cause audio to return in 2 seconds
- I believe the STARMATE is always trying to stuff the digital output
buffer with time-tagged content from various sources so the listener never
(or almost never) experiences a signal loss as happens when driving under
a highway overpass.
STARMATE-4 (ST4TK1 / ST4TK1C)
I
just added this second radio (for my office) to my Sirius account:
Pros:
- Starting with STARMATE-2, all radios have a single docking port on the
bottom so they can be more easily transferred between the vehicle base,
home base, or boom box. All cables now mate with the docking base
rather than the radio body.
- Larger cool-blue display can be seen at high noon
- Signal strength meter now works before activation
- Three rows of ten preset buttons (rather than five rows of six buttons).
First press the Dog Button then use the ten buttons to directly enter a
channel number. Note that this "random access" functionality was only possible
on the STARMATE 1 via the remote control.
- includes a vehicle-base for mounting in your car/boat/RV
- includes a mini (2.5 inch) antenna for the FM transmitter
Cons (STARMATE-2 and higher):
- I also purchased the optional Plug & Play Home
Kit (SUPH1C) and noticed that there is no antenna jack for the
FM transmitter on the home-docking base. The only way to connect it to your
home stereo is by the supplied audio cables.
(more on this in the next section labeled FCC
Part-15 Devices)
- So I used the power adapter from the Home
Kit along with the vehicle-docking base which does have
an FM transmitter antenna jack. The built-in FM transmitter in the STARTMATE-4
is five times weaker than that of the STARTMATE-1 which means that the maximum
distance between your STARTMATE-4 and your FM radio has dropped from
5 m (30 ft) to 2 m (6 ft). This means that the built-in FM transmitter is
virtually unusable in urban areas. This change is by design.
(more on this in the next section labeled FCC Part-15 Devices)
- The only way around this is to use the supplied audio cables to directly
connect to a stereo, or purchase a third party FM radio transmitter (great
for college dorms). Click here for a short list:
Third Party Transmitters
- It might make more sense to buy a boom box rather than the
Plug & Play Home Kit. The boom box comes
with a folding window sill antenna, audio cables, and A. C. power adapter.
Caveat 1: Make sure you've got a boom box
and eight fresh D-cells for the next large power outage. During the
Northeast
Blackout of 2003, most radio, TV, and cell phone transmitters went offline
but the uplinks to those Sirius satellites kept on ticking. This might be
your only link to the human race.
Caveat 2:
In a pinch, you will always be able to power your radio from you car but
you'll need a really long power cable to get the radio close to your fireplace.
Using a Sirius Boom Box to survive a residential power loss
Back
in 2008 I purchased a Sirius Boom Box for use on the beach in Cancun, Mexico.
When I returned from that vacation I continued to use the Boom Box in my home office. I didn't bother removing the eight D-cells (batteries) but did use the
supplied AC power adapter.
Now for some reason I don't fully understand, residential power in 2009 is way
worse than when I was a kid and the first few 2009 interruptions have averaged an
hour. The outage od 2009-July-11 lasted 50 minutes while the 2009-August interruption
lasted 5 hours. Whenever it happens you never know if the outage is local, city
wide, or across
the whole system as happened in 2003 when 55 million were driven into the
dark, many for more than 24 hours. In the 2003 case local radio stations as well
as CELL PHONE towers eventually depleted their emergency backup powers so even
listening to your car AM-FM radio or listening with a portable patio radio wouldn't help.
The only thing
we can rely on today is that Sirius-XM satellite system orbiting overhead.
Notes:
- When commercial or residential power fails, you've got to unplug the AC
adapter from the Boom Box in order to activate the internal D-cells
- When power has restored, remember to plug in your AC adapter ASAP so
that your batteries will not continue to discharge
- Always keep a fresh pack of batteries available for the next "big one"
MH-C808M
Thinking that fresh rechargeable D-cells may be more more
environmentally friendly than traditional batteries (and perhaps cheaper in
the long run), I decided to purchase a recharger from eBay. Make sure you look for deals because I found this
brand new 8-cell model for only $80. The model name is MH-808M and it is
capable of simultaneously recharging any combination of 8 cells. AAA, AA, A,
C, D.
- Make sure sure you are careful when shopping for rechargeable batteries. I saw
prices as high as "two for $35" but as low as "eight for $48". The power rating
is important as well. They are all 1.5 volts but have different
current-over-time specs. For example, I saw low numbers like 2500 mAh (2500
milliamps per hour -OR- 1 milliamp for 2500 hours) and higher numbers like
10,000 and 12,000. Higher is better.
Sirius Synergi Internet Radio (Canadian)
Sirius Tabletop Internet Radio (American)
Oops. As of February-12, 2013,
SiriusXM Canada
will charge you an additional $48 per year for this "once-free"
benefit. To make matters worse, they terminated this service in the middle of my
paid-up annual subscription.
Since "
Sirius Canada merged with
XM Canada in
2011 to become
SiriusXM Canada" and
because "Canadians are blocked from subscribing to SiriusXM USA", they have an
effective monopoly in Canada. Please refer your complaints to the
CRTC as well as the
Competition Bureau
If you
are tired transporting your portable Sirius radio between your car and home
(or car and office) then consider buying a Sirius Internet Radio.
| Product Name |
Product Number |
Notes |
| Sirius Synergi Internet Radio |
TTR1C |
only works with Canadian Sirius accounts |
Sirius Tabletop Internet Radio SiriusXM Tabletop Internet
Radio |
TTR1 |
only works with American Sirius accounts |
Specs
- Comes with a remote control (not shown)
- to ease
initial setup
- to change channels or volume from across the room
- Two Front Dials
- Large = VOLUME
- Small = TUNE (Push = menu SELECT)
- Dimensions: 18.50 cm high x 28.25 cm wide (7 1/4 inches high x 11 1/4 inches
wide)
- Weight: 2.85 Kg (6.3 pounds)
- A.C. powered (a real A.C. plug, not a junkie-looking wall-wart like you
see with computer peripherals)
- requires a high-speed (not dialup) internet connection. Connect via
either "Ethernet Cable" or "Wi-Fi"
- Ethernet Cable (old-school internet connection)
- Wi-Fi (good if you've got a Wi-Fi source in your
home or office; many people will have one built into their DSL router,
cable router, or internet access point)
- works in conjunction with a paid-up active Sirius subscription
- if you already have a radio subscription, then one streaming
internet access is already enabled for you at no extra charge
- if you do not have a radio subscription and don't want one, you can
still purchase a subscription, use internet streaming now, then add a
free satellite radio whenever you change your mind
- Other features:
- Lineout jack allows a connection to a stereo or home theatre
- Headphone jacks on the left-hand side
- When used as a bed-side clock radio:
- two ALARM buttons on the front.
- press the recessed button on the top surface to choose when the
radio will auto-shut off (in mostly 15 minute increments) while you drop
off to sleep.
- when set to auto, the display will dim when when the room light
drops (e.g. turning off a lamp)
- This Sirius Internet Radio may solve other
problems. Why? Consider this: If you live in a city with no
TERRESTRIAL REPEATER (usually communities with a population below one
million), then you may have some difficulty using your satellite radio
from within an apartment or condo. Condo units where the Satellite Radio
Antenna has a direct line-of-sight view to the Sirius satellites (see
the first three charts on this page) will have no problems. But if you
live on the opposite side of the building, or if your building is in the
satellite shadow of a nearby building, you will have problems.
First-time set-up is child's play (and only takes a few minutes):
- Choose "Network Wizard" or "Wired" or "Wireless" from the setup
menu
- If Wired: choose DHCP or manual
- If Wireless: input your Wi-Fi security codes (only required if Wi-Fi
security is enabled which it usually is not)
- If Wizard: just follow the prompted instructions
- Wait for your unit to go online (it will autoset the clock; you need to
set the timezone)
- At this point my unit asked for permission to do a firmware upgrade. I
agreed which took 30 seconds.
I'm not sure what was downloaded by the
logo in the display changed from Sirius to SiriusXM :-)
- Input your Sirius account username and password
- Sit back and enjoy (Big Dial is VOLUME; Small Dial is TUNE; Push the
Small Dial to SELECT a menu item)
- Optionally, program your presets
"FCC Part-15 Devices" and the "NAB Report
to the FCC"
The NAB (National Association of Broadcasters) is a Washington DC based lobby
group attempting to protect the business interests of terrestrial radio and television
broadcasters. These businesses were (understandably) upset by competition from next-gen
devices like iPods, MP3 Players, and Satellite Radios which are able to rebroadcast
the their content to nearby FM radios. In 2006, the NAB commissioned a study of
these devices and determined that 85% of them violate what the FCC has labeled
"Part 15" devices. On average, the radios produced signals 5 times hotter than the
legal limit. The NAB turned over this report to the FCC who, in turn, notified radio
manufacturers that they needed to reduce the output power of their FM signals. This
is why the Starmate-1 (ST1) FM Transmitter is 5 times hotter than the Starmate-4
(ST4).
Sirius "Sportster Replay" (old)
Notice the built-in FM transmitter antenna (20 gauge wire) which travels
around the outside then is soldered to a point on the upper right just
beside the silver crystal. |
Sirius "Sportster Replay" (new)
Notice that the FM transmitter antenna wire is missing. Also, this
is a slightly different circuit board (ignore component color but notice
components size and position at lower right) so there could be other
differences not visible in this photo like resistor values or firmware
parameter settings. I wonder what the red dot on the CPU means? |
 |
 |
So what should you do?
| Location |
Possible Solutions |
| Vehicle |
Satellite Radio companies and the FCC do not want you driving down the
road with an over-powered FM transmitter which could annoy FM listeners
in other cars.
- get a car kit which will allow you to directly connect to your car
radio audio input (best quality)
- get a car relay kit which will allow you to directly connect to
your car radio antenna
- listen to your satellite radio on cheap PC speakers (plug them into
the head phone jack) or boom box
- buy an after-market FM Transmitter (you will annoy others up to
150 ft)
- use the built-in FM Transmitter (probably not realistic in urban
areas)
|
Apartment Condo Hotel |
Satellite Radio companies and the FCC do not want you blasting an over-powered
FM signal to other near-by radios.
- listen to your satellite radio on cheap PC speakers, or head phones,
or a boom box
- use audio cables to directly connect to a stereo
(best quality)
- buy an after-market FM Transmitter (you will annoy others up to
150 ft)
- use the built-in FM Transmitter
|
| Home |
Since it is unlikely that you will radiate a signal over 46 m (150 ft)
you can do just about anything you want
- use audio cables to directly connect to a stereo
(best quality)
- buy an after-market FM Transmitter (can broadcast up to 150 ft)
- use the built-in FM Transmitter
|
| College Dorm |
Since it is likely that your college buddies will want to listen to
your radio, take up a collection then...
- buy the most powerful after-market FM Transmitter (you will probably
please others)
- use audio cables to directly connect to a stereo
(best quality)
- listen to your satellite radio on cheap PC computer speakers, or
head phones, or a boom box
- use the built-in FM Transmitter
|
Third Party FM Transmitters
- Important Notes:
- When considering transmitters outside of the FM band, these are the
legal power limits:
- USA : 025 mW (0.025 Watts)
- Canada: 100 mW (0.100 Watts)
- But since field strength can be changed by antenna geometry, the FCC
regulates the FM band by measuring field strength at a distance of three
meters making sure the signal doesn't exceed 250 uV (microvolts) per meter
Link: www.nab.org/xert/corpcomm/NAB_Part15_Study.pdf
- Do not be tempted by lure of illegal high-powered
transmitters. The main reason why low-powered models sometimes
disappoint is because the volume control driving the transmitter is set
too low (which means the carrier wave receives low, or no, modulation).
In the STARMATE-1, the internal FM transmitter is modulated by the much
larger audio signal connected ahead of the volume control.
- www.villa-fm.com
- this HLLY transmitter features a 500mw
(0.5 watt) FM transmitter which probably is not legal under FCC Part-15
- features a metal case (will reduce hum and feedback) and digital display
- this website is in Texas but the product is manufactured in China
- www.HllyElectronics.com
- these HLLY transmitters feature transmitter powers of: 0.2W, 0.5W, 1.0W,
5.0W, etc.
- despite the website hype, I don't see how anything over 0.025W is legal
under FCC Part-15
- this website is in Texas but the product is manufactured in China
-
www.RamseyElectronics.com/cgi-bin/commerce.exe?preadd=action&key=FM25B
- The FM25B features a 25mW transmitter and is FCC Part-15 Compliant
- Supports all even and odd frequencies from 88.1 to 107.9 MHz via 12
DIP switches
- I own this product and can tell you that it
makes the useful distance of a Starmate-4 equal to that of a Starmate-1

- this is a kit requiring soldering
skills.
-
www.RamseyElectronics.com/hk/default.asp?page=amfm - more AM and FM
kits
- www.HobbyTron.com/LowPowerFMTransmitters.html
- The FM25B features a 25mW transmitter and is FCC Part-15 Compliant
- Supports all even and odd frequencies from 88.1 to 107.9 MHz via 12-DIP
switches
- this is not a kit

- www.electronics-diy.com (Do
It Yourself)
- lots of kits and plans
- links to other locations if you don't want to build a transmitter from
scratch
- www.nrgkits.com
- this is a radio kit supplier located in Bradford, United Kingdom.
(Visit their website to hear a very enticing background audio)
- www.MobileBlackBox.com
- V6000 FM Transmitter
- is FCC Part-15 Compliant
- can be used in a car or house
- features a cool looking LCD display
-
www.ccrane.com/radios/fm-transmitters/fm-transmitter.aspx
- is FCC Part-15 Compliant
- can be used in a car or house
- features a cool looking LCD display
- www.WholeHouseFmTransmitter.com
- Whole House Transmitter
- is FCC Part-15 Compliant
- can be used in a car or house
- only supports six FM frequencies from 106.7 MHz to 107.9 MHz which are
set by 3-DIP switches
Using "Sirius Satellite
Radio" in Cancun, Mexico. (2006-05-xx)
(click here for the much shorter text associated
with my 2008 visit)
I just returned from a vacation on the Mayan Riviera (Playa del Carmen) with
my wife and our Sirius "STARMATE STC1 radio". We brought along the radio
as an alternative to late-night and early-morning TV viewing but ended up using
it 90% of the time. Here are some amusing things that happened to me and hopefully
will help you.
- Applying power
- You should not see 220 volt receptacles in Mexico but since the power
supply that came with my "STARMATE Home Kit" is rated for an input
range of "110 to 240 Volts AC", you probably
do not need to worry about a blow out.
-
Even
though Mexican power in Cancun is 110 volts AC, many of the hotels are wired
with the European-style wall sockets (plugs require "two round electrodes"
rather than "two flat electrodes" which is standard in Canada and the USA).
Fortunately, I had purchased a flat-to-round adapter from "The
Source by Circuit City" for $10.00 before
we left Canada. Here is their online catalog information should you decide
to do the same:
FOREIGN
TRAVEL ADAPTER - CONTINENTAL EUROPE - 2738027
Note that
Radio Shack sells the same product
at the same price but with Catalog Number: 273-1447
- Note: Some hotel sockets will accept
both round and flat electrodes but are recessed into a pocket which is too
small to physically accept the already-small power adapter (could this be
a hotel safety precaution?). You will need some kind of mechanical extension
to get around this so it is a good idea to pay the 10 bucks and be better
prepared
- Connecting the antenna
- We were placed in suite with a beautiful view of the Caribbean sea (click
here to see the location). Unfortunately this "East by South East" view
only allows our antenna to "see" one satellite at a time, and then only
when it is approaching Mexico from South America (see the animated satellite
map above for details). It was the worst possible satellite-radio location
since Sirius instructions said we should be pointing the antenna to the
North-West. Using an el-cheapo "Sirius Indoor-Outdoor antenna" I was not
able to detect any signal from the the balcony of our suite. However, there
were at least two other options immediately available:
- The wooden top (where the braches come together) of a palm tree
was parallel to our balcony railing and was only 3 m (10 ft) away. The
"Sirius Indoor-Outdoor antenna" comes with a 6 m (20 ft) cable and I
knew I could probably throw the antenna module into the tree and have
at least 3 m (10 ft) remaining to get inside the room. I didn't want
to annoy anyone with my antics at this time so I decided to keep the
"palm tree option" as my option of last resort.
- We also happened to be located on the top floor of a 3 floor resort
with a stone-tile-roof overhang (if this tile was laid over a metal
base than this was probably part of my reception problem). I flipped
the antenna up onto the stone-tile-overhang and a solid signal immediately
snapped in. I left the antenna on the tile roof for the next 7 days
and the plastic never melted despite maximum air temperatures of 33
C (92 F) and direct sunlight.
Humorous
postscript: prior to our Saturday check out, I discovered
that the antenna wire was snagged between two pieces of stone-tiles.
I didn't want to take the chance of either breaking the wire or loosening
a tile so I borrowed a broom from the maid and had the wire un-snagged
in less than 2 seconds.
- External Speaker Required :-)
- I had mistakenly assumed that each room would be equipped with an FM
Radio through which I could play my STARMATE-1 (which everyone knows was
designed for use inside an automobile, truck or RV). Well, there was no
in-room radio, and we didn't bring one along, so there were only three options
remaining:
- only use headphones (not cool when sharing a room with another person)
- purchase a cheap FM radio for use in the room (we arrived late so
I couldn't try this immediately)
- use the TV (this procedure is for techies
only)
- remembering that the video portion of NTSC television
employs AM (amplitude modulation) while the audio portion
of television employs FM (frequency modulation), all I needed
to do was get the Sirius signal into the TV.
- also remembering that a mid-band gap exists between channel
6 and 7 (channel 6 ends with 88 MHz while channel 7 starts with
174 MHz) I realized that channel 6 would be my only hope.
For Techies Only: Most
techies already know that the video (AM) portion of channel 6 starts
at 80 MHz while the audio (FM) portion ends closer to 88 MHz. Also,
there is a lot of slack engineered into these analog tuners so we
should be able to directly use the Sirius signal without resorting
to using some harmonic approach to get these lower frequencies into
the higher TV channel.
- this newer style TV did not have a tuner but was sitting on
a thin plastic hardware base connected to a LodgeNet free/pay-per-view
hotel system. Since the "remote control" changes the channel of
the LodgeNet black box, I needed to run a wire from the antenna
jack of my STARMATE-1 directly to the input of the LodgeNet and
then use the remote control to set the channel to 6. If you can't
see what you are doing then just locate the coaxial cable coming
from the wall and disconnect it.
- I had brought a home-made dipole antenna which is nothing more
than two 1.5 m (5 ft) wires connected to an old 3/16 inch earphone
plug. I decided to break off one of the wires in order to extend
the other one so it would conveniently reach the LodgeNet black
box.
- I set the "FM Transmitter Frequency" of the STARMATE to 88.1
MHz, turned on the TV then changed the channel to 6 (you need to
do this every time you power-up the TV). Bingo! Sirius radio
playing through the TV.
- Note: this is going to be
too much of a pain every time so we'll definitely take a portable FM radio
with us on our next trip.
- Enjoying the Signals
- now we had daily access to our favorite channels:
CBC Radio One, BBC
World Service, NPR Now, BBC Radio 1, Howard-100,
Bubba
I'll go mental if I don't
hear "Quirks and Quarks" on CBC
or "Science Friday" on
NPR
- Summary
- avoid all this audio-output hassle by making
sure you take an FM Radio with you
- alternatively, travel with a cheap set of computer
speakers. All STARMATE radios can drive PC speakers directly from
the AUDIO OUT Jack.
- ask the hotel for a room with a balcony opening to the North
(or North-East), or a top floor, or both. For other locations, check the
animated map above.
-
buy a portable Sirius boom-box for the balcony or beach
Using "Sirius Satellite
Radio" in Cancun, Mexico. (2008-10-xx)
I just returned from a vacation on the Mayan Riviera (Playa del Carmen) with
my wife and our Sirius "STARMATE ST4 radio". We brought along the radio as
an alternative to late-night and early-morning TV viewing but ended up using it
90% of the time.
- General Use
- This time I was better prepared and so brought along a Sirius boom box
(purchased online for half price) for use on the beach (the STARMATE ST4
just docks in a little receptacle).
- The boom box can be powered by eight batteries (D-cells) or domestic
power in the range of 110-220 Volts AC
- Bring along headphones if you don't want to disturb others.
- The TV in our room had audio jacks in the front so we could play the
STARMATE through the TV or just use the Boom Box.
- Connecting the antenna
- Same as before, I just through the window-sill antenna onto the roof
for a constant 7-bars signal. I brought along a second antenna for the boom
box.
- Enjoying the Signals
- It was raining after the Saturday afternoon check-in so we listened
to Randy Bachman's "Vinyl Tap"
on CBC Radio One
- Six day later I didn't miss "Science
Friday" on NPR Now. I wonder if they realize that people hear their
program on the beach.
Using "Sirius Satellite Radio"
in Toronto, Canada. (2008-11-xx)
Great news for Toronto subscribers. For the past week I was driving around downtown
Toronto and never experienced a single signal interruption. I stayed in an East-facing
hotel room (supposedly the worst possible location for Ontario subscribers) and
everything worked perfectly. Switching to my SIGNAL STRENGTH display revealed a
whopping 10 bars of TERRESTRIAL signal. On Friday night I drove from downtown Toronto
back to Kitchener with my display sitting on SIGNAL STRENGTH. Here is a list of
my signal readings:
| Location |
Terrestrial Signal |
Satellite Signal |
| Young Street and College Street |
10 bars 3 |
intermittent |
| Young Street and Gardiner Expressway |
10 bars 3 |
intermittent |
| Gardiner Expressway and Islington Avenue |
6 bars 1 |
10 bars 3 |
| Gardiner Expressway and Highway 407 |
10 bars |
10 bars 3 |
| Highway 407 and Highway 5 |
6 bars 1 |
10 bars 3 |
| Highway 407 and Highway 401 |
10 bars |
10 bars 3 |
| Highway 401 by the Toronto Airport |
3 bars 1 |
10 bars 3 |
| Highway 401 and Highway 410 (Brampton/Mississauga) |
10 bars |
10 bars 3 |
| Highway 401 and Winston Churchill Blvd |
6 bars 2 |
10 bars 3 |
| Highway 401 and Highway 407 |
6 bars 2 |
10 bars 3 |
| Highway 401 and Highway 25 (Milton) |
3 bars 2 |
10 bars 3 |
| Highway 401 and Kelso Park |
0 bars |
10 bars 3 |
Superscripts:
- These are low-lying areas and I am guessing that the Sirius terrestrial
repeater is sitting on top of the C. N. Tower (near the
intersection of John St. and Front St. in Toronto)
- Out this far, the terrestrial signal always increased whenever I was
under an overpass. Since I never noticed any hardware mounted under the
overpass, I am assuming that the concrete walls were acting as a terrestrial
radio reflector/collector.
- During this driving experiment I always has access to usable TERRESTRIAL
or SATELLITE signals, and the radio seamlessly switched from source-to-source.
The only real-world compliant I noticed was caused when I passed the odd
18-wheeler. Some of these truckers were using really powerful third-party
FM transmitters (while I was only using the transmitter built into my STARMATE
1) which meant I would get a 10 second blast of country music while I passed
them. One way to get around this is to purchase one of the direct connect
solutions or a more powerful third-party
FM transmitter.
Using "Sirius Satellite
Radio" in Cancun, Mexico (2010-01-xx)
-
The bad news is that we could only get a west-facing room. This
means that our radio only worked for 4 out of every 8 hours (see the animated
map at the top of the page).
-
The good news is that my radio worked 100% of the time on the
beach.
Satellite Radio Companies
- Europe + Africa + Asia + Central America + South America
- Western Hemisphere Only
- SIRIUS
Satellite Radio @ Wikipedia
- 2.3200 - 2.3325 GHz (S Band)
- 4 MHz wide band (Satellite)
- 100 channels spread across 1000 frequencies
- 4 MHz wide band (Ground Repeater)
- 100 channels spread across 1000 frequencies
- 4 MHz wide band (Satellite)
- 100 channels spread across 1000 frequencies
- XM Satellite
Radio @ Wikipedia
- 2.3325 - 2.3450 GHz (S Band)
- 4 MHz wide band (Satellite)
- 4 MHz wide band (Ground Repeater)
- 4 MHz wide band (Satellite)
- For a little more technical information please refer to Page 84 of the
February-2006 issue of
Scientific American
Partial
Excerpt:
| Working Knowledge: Song Beams; February
2007; Scientific American Magazine; by Mark Fischetti; Satellite
radio can send the same 100 channels of music, talk and sports to
you at any street corner in the nation. Yet someone next to you
may receive a different set of channels, and a third person who
does not subscribe cannot pick up a thing. How can the service blanket
the country yet be so discriminating? Three companies provide the
world's satellite radio: XM Satellite Radio and Sirius Satellite
Radio for the U.S.; and WorldSpace for Africa, Asia and Europe.
XM uses two geostationary satellites and about 800 low-power ground
repeaters scattered around cities where tall structures can block
the satellites' line of sight [see upper illustration]. Sirius has
three birds in highly inclined, elliptical orbits and about 100
high-power repeaters, each bathing a metropolitan area. Both architectures
provide equally reliable service, says Dan Goebel, a senior research
scientist at the Jet Propulsion Laboratory in Pasadena, Calif.,
who previously designed amplifiers for ground repeaters. |
Unofficial History of Sirius + XM
| 1988 |
|
| 1990 |
|
| 1991 |
- American Mobile Radio/XM co-founder Lon Levin joins American
Mobile Satellite Corp.
|
| 1992 |
- Satellite CD Radio, Inc. successfully petitioned the FCC
and Congress into creating
Digital Audio Radio Service (DARS) in the United States.
- Satellite CD Radio, Inc. changes its name to CD Radio,
Inc.
- American Mobile Satellite Corp. spins off a new division
known as American Mobile Radio Corp. who would go on and join
three other applicants as potential licensees. Later that year, American
Mobile brings in
WorldSpace as a 20% investor into the new venture with the intention
of using their technology.
- the FCC divides the S-Band spectrum already
set aside for Satellite CD Radio, Inc. then gives half of it to XM
|
| 1997 |
|
| 1999 |
- CD Radio, Inc. changes its name to Sirius Satellite Radio,
Inc. in 1999.
- General Motors merges their OnStar product with XM
(and agrees to only install XM radios in GM cars until 2013)
|
| 2000 |
- American Mobile Satellite Corp changes its name to Motient
|
| 2001 |
- XM satellite service goes online in September-2001
|
| 2002 |
- Sirius satellite services goes online in September-2002
|
| 2006 |
- Howard Stern begins Sirius broadcasting starting 9-January-2006
|
| 2007 |
- In February, Sirius CEO
Mel Karmazin announces that Sirius and XM intend to
merge. They also intend to drop the subscription price by allowing people
to only pay for channels they want.
- XM-Sirius
Merger @ Wikipedia
- Because XM and Sirius sit side-by-side
in the S-Band, only a small software change is required to allow existing
receivers to access all channels (provided the radios were designed
with typical engineering margins). This software change will be downloaded
into the radios over the satellite network. Existing residential antennas
and amplifiers will work without modification
- Sirius 2.3200 - 2.3325 GHz
- XM 2.3325 - 2.3450 GHz
- The main opposition to the merger is the
National Association of Broadcasters (a.k.a. Terrestrial Radio).
NAB representatives have been present at both Congressional hearings,
and have produced many advertisements regarding the merger.
p.s. oil companies and banks merge with little opposition
so why is this merger being delayed???
|
| 2008 |
- In the Spring of 2008, the US government announced that they will
allow the merger of these two companies.
- In August of 2008, the two American companies merged and are now
known Sirius XM Radio
- As of September 2008, the new company boasts
19 million paying subscriptions
- XM-Sirius
Merger @ Wikipedia
- The Canadian versions of these companies has not merged and there
are no discussions on the horizon
|
| 2009 |
- After the sub-prime triggered economic crisis of 2008, Siriux-XM
announced some difficulty in borrowing money to cover bond obligations.
As usually happens these days, the "bankruptcy" word begins to be used
by financial commentators/entertainers which then introduces uncertainty.
- First off, Sirius-XM has the second largest number of subscribers
after Comcast.
- Secondly, Sirius-XM has the fastest growing subscriber base.
- What would happen during bankruptcy? Under chapter 11, a company
uses the courts to obtain protection from creditors.
- If new lines of credit are found, the crisis is averted and
business resumes.
- If new lines of credit are not found, the business is auctioned
or sold with the proceeds first going to the bond holders. Any remaining
money goes to the preferred shareholders with the balance, if any,
going to common shareholders.
Under either one of theses scenarios the subscribers would not loose
service. Under scenario #2 the company would
be reformed with zero debt.
This would be the end of terrestrial radio.
- By early February, Sirius-XM found new lines of credit so bankruptcy
was avoided.
|
| 2010 |
|
I'm not sure why people bother to steal them
| Executive Summary |
- These radios are part of a subscription service.
- You pay (subscribe) to have the content delivered to them.
- Once stolen, the the original owner will:
- report the radio stolen to police so the owner can collect
insurance
- report the radio stolen to Sirius so the subscription can be
cancelled or moved to a replacement device. Either action will
render the stolen radio useless.
- Starting a subscription with a stolen radio will
immediately flag the black-market customer as an owner of stolen
property. An investigation will lead back to the thief
|
Satellite Radios
- Like Satellite TV, every Satellite radio has its own unique ID
- Sirius calls their number "SID" (Sirius
Identification number)
- The SID is associated with your account during the subscription process.
- When your account is started, Sirius will continually broadcast ENABLE
signals to a pool of just enabled SIDs. This signal will allow the radio to operate as designed
- When your account expires, Sirius will continually broadcast DISABLE
signals which will block every subscription channel except for the local weather channel
(this same channel is the only one enabled after a hard reset)
- If someone steals your satellite radio:
- Contact Sirius and report it stolen
- Sirius will send out DISABLE messages for years (they have a
complete private channel to do this)
- The same thing happens when you allow your subscription to expire
- You would need to do this anyway if you wanted to enable a replacement
radio
- When the thief sells the satellite radio to an
unsuspecting third party, the third party
will need to report the SID to Sirius in order to start a new
subscription. That is when Sirius will tell the customer that the radio
is stolen.
Internet Ratios
- Internet radios need to log onto the Sirius Streaming website using your
Sirius account name and password
- If someone steals your internet radio:
- log onto your Sirius account and change the password ASAP. This will
disable the internet radio immediately.
- Now contact Sirius and report it
stolen
- Every time it had previously connected to Sirius using your account
name, it would have also reported its associated SID (Sirius
Identification number)
- When the thief sells the internet radio to an
unsuspecting third party, the third party will need to input their own
SIRIUS username and password to start it working. When the radio connects to
the Sirius server, the new customer's I/P address (internet address)
will be visible to the people at Sirius. Since the radio is stolen, the
I/P address is passed over to the police who are now able to use ISP
(internet service provider) records to
trace it back to the third party customer. The police will visit the
customer who would be pressured to tell the police who they bought the radio
from.
Back
to Home
Neil Rieck
Kitchener - Waterloo - Cambridge,
Ontario, Canada.
