Do you know this site?
https://www.sigidwiki.com/wiki/Signal_Identification_Guide
I had a short peek and could not find anything, but you may have a bit
more patience.
Best
Fabian
Am 27.09.23 um 13:21 schrieb veso...@gmail.com:
Hello there all, I hope someone can help me
I am trying to watch some television on CH47 (679.25Mhz)
I am in Slovenia and I am trying to receive and watch Federalna
Televizija transmitting from Bosnia and Herzegovina (BiH)
But there is very anoying signal bothering me, you can see the problem
here: https://youtu.be/wt4vEfu7yEI?si=XDQ8wQ-rK-lb8LMW
Instead of seing PAL and hearing sound, I see this anoying lines and
hear digital data :(
So I decided to bring my Airspy R2 to visually see and record some IQ
data on whats going on
So this is what I recorded:
https://transfer.sh/dMhDtqnodK/baseband_679250000Hz_14-23-42_26-09-2023.wav
Center frequency was 679.25Mhz but sadly I was only able to record about
2.5Mhz of Bandwith, because my phone could not handle full 10Mhz
As you can see PAL was bearly able to get through this jamming signal
At first I thought it could be 600Mhz 5G NR which is sadly right where I
want to receive (663 – 698 Uplink, 617 – 652 Downlink), but thats only
for US, not Europe
The next suspect could be 5G Extended Lower SMH (which has downlink from
698 – 716) but its 20Mhz above my signal, PAL only needs about 6-8Mhz so
this should not be a problem
Then I thought maybe LTE Lower SMH on 700MHz could be the culprit, which
again doesnt make any sense (Downlink on 699 – 716Mhz)
I hope something could be done
At least to figure out what signal that is so I can complain to relevant
local authorities
I am there for a 3 more days, so if needed I can do more messurments
Sadly I only brought Airspy HF+, and Airspy R2 with me nothing more
capable bandwith vise
I also have Samsung Galaxy S10+ if it can maybe help in messuring LTE
signals somehow
Thanks to everyone for anwsering
--
Sent from myMail for Android
