(TV was fine only internet was affected.) By looking at the management interface of my cable modem I was able to determine that my internet service was carried on channels that were on the same frequencies that had been recently sold to wireless carriers, and my RTL-SDR verified that there was a strong signal on the air that looked like OFDM - presumably a cell site in the neighborhood that had just come on the air.
A few years back before FIOS came to the neighborhood and I still had cable internet from Comcast, we suddenly started to have major problems with service at my house. I once made good use of the fact that my RTL-SDR can receive the 700 MHz band. Not only does it no longer serve any purpose as there are no longer any cell signals that scanners can receive, it doesn’t cover a whole bunch of other frequencies that are now used for cell service. Posted in Radio Hacks Tagged 1G, cell phone, scanner Post navigation Header image: krystof.k (Twitter) & nmuseum, CC BY-SA 3.0. Whether an RTL-SDR breaks it is something we’ll leave for the lawyers, but the detail in the write-up makes it well worth a read. It may be ancient and unnecessary but there is neither the will nor the resources to remove it, so it seems destined to become one of those curious legal oddities that remains on the books for centuries. Thus they successfully petitioned the US Congress to include a clause restricting the capabilities of scanning receivers into another telecoms-related Act, and here we are three decades later with analogue phones a distant memory and the law still on the books.
This caused significant worry to the cellular phone companies who understandably didn’t want their product to become associated with insecurity. It even made the world news via the pages of the gossip sheets, when (truthfully or not) it was credited for the leak of a revealing and controversial conversation involving Diana Princess of Wales. Listening to these calls was an illegal activity, but for those with the appropriate scanners it became a voyeuristic hobby within a hobby.
Scanning receiver radio shack serial#
What we might today refer to as “1G” phones used an entirely analogue transmission scheme, with an easily-receivable FM carrier for the voice and extremely low-bandwidth bursts of serial data only for the purposes of managing the call. If you are an American, have you ever noticed that it has a gap in its coverage between 800 and 900 MHz? The curious reason for this is explored by, and it’s a tale of dusty laws relating to a long-gone technology, remaining on the books only because their removal requires significant political effort. Frequency Coverage: - 25 - 823.9375 MHz - 851 - 868.9375 MHz - 896.The SDR revolution has completely changed the way radio enthusiasts pursue their hobby, but there is still a space for the more traditional scanning receiver. Excellent physical and cosmetic condition. RADIO SHACK Pro-26 200 Channel 25 MHz - 1.3 GHz Radio Scanner Receiver. Item: 152786131655 RADIO SHACK Pro-26 200 Channel 25 MHz -1.3 GHz Radio Scanner Receiver **NICE**.
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