I have just started playing with SDR so I downloaded the relevant amateur band plan for my location, the UK. Tuning around I found things like POCSAG/FLEX pagers as expected and amateur radio (e.g. FM repeaters) at frequencies matching the band plan.
However I also found some signals just above 145.8Mhz, which I noticed from the band plan is reserved in the UK:
145.806-146.000, 12 kHz, All Modes - Satellite exclusive
I am using an Ettus SDR and a Comet SMA703 antenna, which is designed for 144/400/1200Mhz. However, with this tiny antenna I was not expecting to receive anything from space, especially indoors.
An example of the signal is shown below:
There are a few more similar signals just a little higher up:
Some seem to be a fixed tone, some sound like they might be morse code when using the CW-U mode in gqrx.
Can anybody tell me what these signals are likely to be?