I was wondering what the frequency range was that these birds could hear and my assumption was that if it can penetrate the ionosphere then they could grab it. Apparently to foreign press the frequency range is 100 MHz to 25 GHz.
I'm going to buy that book. Looks very interesting and informative.
Example =
Naval Ocean Surveillance System - Wikipedia, the free encyclopedia
Satellite Tracker =
NOSS 2-1 (C) - Orbit
Satellite Passes =
Daily predictions for brighter satellites
Amateur Radio Satellite Passes =
Amateur Radio Satellites - All Passes
I set in my back yard on some evenings and look straight up, towards the horizon, and up at a 45 degree angle. Some satellite passes are hard to see, some are very easy to see. Some are readily recognizable as they travel fast and stand out. Some are hard to recognize as they travel slow. The "NOSS" satellite I seen just very recently, to the east of my house at about a 60 to 70 degree angle. Just like watching a car drive by, then a large flash of light from the suns reflection in the windshield....I seen a huge bright reflection off of the satellite.
Out in my back yard, looking up at the stars ( I am a "hick" anyway, and like the night stars and moon ) is very relaxing to me, and enjoying to watch satellite. "Heavens-Above.com" I can look for satellite passes by reading the info on that website. I would just assume set and "look for" and "Search" with my eyes, in an attempt to locate. I have have just started recently documenting satellite passes on my "I - Phone". After documenting the passes, I research the satellite to see what it is. I have US Navy intel satellite documented - Russia Signal Intelligence satellites documented - Russian navigation satellites documented.
Relaxing to set in the back yard and look for satellite passes. I have seen them as much as 90 degrees ( straight up ) above my residence. Again, some are noticable and some are not. Some are watched for 30 seconds or more, or as brief as 5 seconds.
I was wondering what the frequency range was that these birds could hear and my assumption was that if it can penetrate the ionosphere then they could grab it.
"Penetrate the Ionosphere " as you say.
The Corpus - Sarsat Search and Rescue operate off of UHF frequencies ( ??? 406.025 Mhz and others ). They, as I believe are transmitters that broadcast at about 5 to 7 watts. So if a Corpus "SAR" satellite can "suck up" a 5 to 7 watt beacon transmission - and mark its location, I am sure a " Government Intel" satellite can abosorb a 35, 100 , 150 watt ( or more ) radio transmission. I would be almost certain if you were hunting and talking on your MURS / FRS radio......if "A government" wanted to listen to you....they could.
Research the Corpus - Sarsat search and rescue transmitters ( beacons ) and satellites.
If you type on it, talk on it, if it has an antenna and "transmits", it can be monitored / tracked / listened to. This is not counting the countless other "electronics" that "radiate". But that is another * Intel Tidbit *
Some things are much to sensitive / secret ...... to discuss. Like the "Old timer" said in the movie "Fire Down Below" = "Never tip your hand to early in the game......your bound to loose".
Steven Seagal - " Thats good advice, thats good advice". ( the old timer STILL did not know everything that was in Seagals head )
VERY few things can be kept secret. VERY few people understand and know what confidential - sensitive and secret information is, and / or.....how to handle that information. Where I come from.....TRUST is everything. AGAIN - trust is hard to get, but easy to destroy.
THERE are US Military Units ( every branch ) that are dedicated to signals / communications intelligence, and although it is no big secret based on past news reports and media broadcasts...I WILL NOT post that info here.
There are satellites that can read a license plate. There are satellites that can listen in to "radio" broadcasts / conversations.
Your voice can be listened to "from a distance" , from your voice " bouncing off of " and "reflecting" off of " glass , if the right equipment is used.
This winter when it gets cold and dreary......make yourself a cappicino, set at your computer and research satellites. It could very well be interesting and informative.
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Typical rescue beacon radios transmit a 5 watt signal for 0.5 second once every 50 seconds. Most of these terminals sold since 1997 include a GPS receiver so they can report precise GPS lat-lon location.
The "406 MHz" distress radiobeacon band is 100 kHz wide and centered at 406.05 MHz. Individual beacons transmit in assigned 3 kHz channels.
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International Cospas-Sarsat Programme - Wikipedia, the free encyclopedia
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After a light plane with two U.S. congressmen on board went down in 1972 and could not be found,[6] the U.S. began requiring all aircraft to carry an Emergency Locator Transmitter (ELT) that would turn on automatically in the event of a crash. Initially these units sent beacon signals on the 121.5 MHz aircraft emergency frequency. These are being phased out in favor of rescue beacons that use a 406.025 MHz signal, which can be picked up by the Cospas-Sarsat international satellite system for search and rescue. Each 406 MHz beacon has a unique digital ID code. Users are required to register the code with the Cospas-Sarsat, allowing inquiries to be made when a distress signal is picked up. Some advanced models can transmit a location derived from an internal GPS or GLONASS receiver.
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Survival radio - Wikipedia, the free encyclopedia
https://directory.eoportal.org/web/eoportal/satellite-missions/c-missions/cospas-sarsat
FF - Medic !!!