Τετάρτη 16 Οκτωβρίου 2019

Mysterious things on 25mb …

NONE COMING HERE GIVEN HIS OPINIONS.
PLEASE SO SOME SUGGESTION
I made several additions  after the photo!

Recently , I don't know when exactly the 25 mb was flooded by numerous carriers inside the 25mb during my Software spectrum analyzer  The first days i thought that it  could be a problem with the software as several other times showing fake carriers and impulse signals
the photos say that all:



time recorded 0916/16-10 today as the  carriers are still in power

In a close up you can see that this way 



As  you can see most of the band is fulfilled by hundreds if not thousands of mysterious carriers in the band symmetrically separated by 4001.8 Hz of -103 dBm for most of them with varying levels of 1-3 db max (near to exact measurement )
I was still adamant that the problem was  something happened  by the same program producing fake carriers etc until i fond that with other programs and got quite suspicious that it was a SDR flaw..

Until several days ago when I used the R75   do some DXing . And really i felt very much satisfied that this was not my SDR'σ fault.

Addition  : carriers  can be heard all time everyday from around 15-25 days even in a distanca of around 15 meters out of the two store building. and only in this band!
See the video here as proof : 
https://youtu.be/BxcHyQQs5bo

NOTICE THAT THIS HAPPENS ONLY IN 25mb  ALL OTHER BANDS ARE CLDEAR FROM  THIS PROBLEM!

There is a  series very fast field metering the same time as following Time 2220-45 on 14-10
12050 Signal 3 
12030 French S5
12010 Chinese  S9  
12000 fast tone keying 
11955 Spanish S6 
11940 music S4
11930 Marti SP  S9
11925 Chinese - 
11915 Arabic - 
11910 Chinese 
11850 arabic S7 
11820 arabic  S10 
11810 BBC S10 
11780 multi S4 
11760 RHC S9 
11740 Chinese S4
11710 Chinese S9 
11700 dual S- 
11680 Arabic S3 
11670 Chinese 
Also : 
9265 WINB 2249 <S3 
9350 WBCQ?  2257 S5
6280 CNR?  S7 max 
6220 pirate and a scrambled voice 2258  
7780 WRMI religiou talks S9  on 0530 /1510 










1 σχόλιο:

  1. Looks like someone has installed something within your neighborhood that is causing this terrible noise and interference, are there any additional solar cells been installed close by and are using storage batteries and and invertor?

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