258.3625? Unauthorized use of Mil Frequencies?

ScubaJungle

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Im hearing what I think is conversation on 258.3625, although I suppose it could be foreign military(?) - but I can BARELY make out what they're saying, nor what language it is (Portugese or Italian?). I am hearing something similar on 260.48125.
I recorded a portion of it and uploaded it if anyone wants to take a jab at what this is.
 

ScubaJungle

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I got another recording with a filter on it and edited out the static - still not very intelligible.
 

ChrisP

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You are likely hearing Spanish or Portuguese over the US UHF military satellites. They are bootlegging the transponders and have been for years.

- Chris
 

ScubaJungle

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It definitely sounded Portuguese, but I had no idea this existed/happened
That makes sense now though.. so these people are potentially in other countries, using the military satellites to talk to their friends or whatever in other places?
Thanks for the answer!
 

ScubaJungle

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For anyone interested in hearing this - these are some of the frequencies I heard them on. I found some that were fairly clear, and it is definitely Portuguese (Brazilian Portuguese).
260.48125​
260.462​
257.0375​
258.3625​

258.3587​
257.91875​
258.35955​
261.86875​
 

ChrisP

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you would think the military would do something to prevent it
There were attempts to catch the perpatrators in some South American countries, but since these UHF satellites are basically bent-pipe repeaters, whatever RF goes in the input side, gets downconverted and spit out the output side. I believe they are transitioning to more digital and SHF satellite systems to avoid this.

-Chris
 

devicelab

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That makes sense now though.. so these people are potentially in other countries, using the military satellites to talk to their friends or whatever in other places?
The satellites are 36,000 km from earth and thus can broadcast to a large swath of the Earth at any given time.

If you're in FL then you're likely picking up UFO 7: https://www.n2yo.com/satellite/?s=23967#results
 

ScubaJungle

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Thanks for the links and info. From looking at the list of frequencies I got real quick, looks like UFO 7 and maybe UFO 5. I never knew about this, wow.
I was using DSDPlus - there's no way I could pick this up on my BCD436HP
 

ScubaJungle

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You just asked me if I meant SDR sharp, which is also software, which is why I reaffirmed what I said.
For hardware - Im using RTL-SDR blog v3 dongles with telescopic dipole antennas
 

spacellamaman

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there's no way I could pick this up on my BCD436HP
first time i heard the Mystery Language Speakers i was killing time in a shopping center with a BC125 wearing a RS800 antenna plopped on the roof of my car, bored to death running thru the milair band. i think its do-able with the 436HP, just gotta try a bit harder :)
 

ScubaJungle

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first time i heard the Mystery Language Speakers i was killing time in a shopping center with a BC125 wearing a RS800 antenna plopped on the roof of my car, bored to death running thru the milair band. i think its do-able with the 436HP, just gotta try a bit harder :)
LOL! Never was the wrong word, in reality I mean it's just so easy to find signals with an sdr vs a scanner because you have the waterfall and can mark peaks, etc, so I really use the BCD436 for identified signals.
Software is useless without hardware.
Lol of course! But I didn't think that's what you were asking
 

brandon

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Podcast about this can be found here
 

tyytor

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Hi from what I am hearing they not only do this to the military satellites, they are also doing it to the new qo-100 geo amateure satellite, as well as the fm amature satellites too, for years now not much new there.
 
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