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Cellular signals around 9cm
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Ross G6GVI
Here it is Dave - see attached.
(I hadn't used SATSAGEN, before, so didn't notice that the 60dB gain setting wasn't compensated on the display - so the "0dBm" reference line is actually -60dBm) I think that the block of signals just above 3410 is from Vodafone bases in Manchester (20km away, but line of sight) and the stronger blocks around 3460 are from Three in Bolton and Horwich, just down the hill. That plot was taken in June, but Dave reckons that the interference has got worse since then - presumably as more bases are installed. 
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Ross G6GVI
On Sun, Nov 27, 2022 at 10:43 AM, Ross_G6GVI wrote:
stronger blocks around 3460Correction - I meant 3600MHz for the Three 5G signals. |
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David Redman
Graham and Ross, Many thanks for the info. Hopefully before or after Christmas I will have finished my 9cm tvtr ( G4DDK preamp, Toshiba 40w amplifier). The plan is to use with my 3m dish on eme ideally without a filter before the preamp and pointing up into the sky but I will also try on tropo if the interference is tolerable however looking at these signal levels maybe not. Let's see Dave G4IDR On Sun, 27 Nov 2022, 10:47 Ross_G6GVI, <ross.g6gvi@...> wrote: On Sun, Nov 27, 2022 at 10:43 AM, Ross_G6GVI wrote: |
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