Constant Close Call opening with unknown frequency

Arcreef

Member
Joined
Nov 1, 2023
Messages
6
In miami FL and keep getting close call on my Uniden SDS100 to open on 110.591666MHz getting it for hours every day for weeks now but no data packets, no voice, no encryption. Anything that could cause that frequency to open on sch 5 setting. Anyone else in South FL getting that. It has to be high above the rest of the band for CC to open on it. moved the radio, different antenna etc. but still opening.
 

marksmith

Member
Joined
Jun 20, 2007
Messages
4,349
Location
Anne Arundel County, MD
Sounds like it's probably an image of some strong RF noise at your location (presuming these hits are all at the same place).

That frequency doesn't ring any spectrum bells.
 

Arcreef

Member
Joined
Nov 1, 2023
Messages
6
No radios tuned to 99.9 none in the house even. 110.6 is still coming up even outside my building. 143 came up once but it's still consistently 110.591666. Could a microwave cause that or I live close to a 5G phone tower on my street at lighting pole level I closed all breakers to my my apt and it didn't change or stop. I also got an RF signal strength detector and when the signal goes off it goes to full bars. What else could it be.
 

Ubbe

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Joined
Sep 8, 2006
Messages
10,072
Location
Stockholm, Sweden
I also got an RF signal strength detector and when the signal goes off it goes to full bars. What else could it be.
You don't have another receiver you can set to 110.6 and set its squelch to 0 and wait patiently for the signal to appear?
You could try that with the SDS100 but its squelch are unreliable and even when set to 0 it can mute the audio from a non 2-way radio signal.

What's the interval of the signal according to that RF signal meter, how long is it on and whats the time between transmissions?

/Ubbe
 
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