PICKING UP PULSE STATIC

[jayzdarr74]

Hi all, I just recently put up a TRAM 1410 discone. on frequencies into 400 MHz range I get sort of a pulsing static sound. Any idea why ?

 

[ecps92]

Hi all, I just recently put up a TRAM 1410 discone. on frequencies into 400 MHz range I get sort of a pulsing static sound. Any idea why ?

All frequencies or specific frequencies ?
400-420 Gov' ? 430-450 Amateur ? 450-470 Part 90 ??

 

[Whiskey3JMC]

Does it sound like this by chance? (bursts are often spaced about 2 to 3 seconds apart) might be a CAP+ rest channel. Have you looked up any of your findings to see if documented in the RRDB? Care to give us specific example frequencies?

RRDB | United States | Query

RadioReference Database Query - United States

www.radioreference.com

FCC query search can be used to look up what hasn't been RRDB documented

RRDB | FCC Data | Query

RadioReference Database Query - United States

www.radioreference.com

 

[tvengr]

If you have a scanner in addition to what you are using, turn it off. Scanners can radiate signals which can cause problems like that.

 

[IC-R20]

If you have a scanner in addition to what you are using, turn it off. Scanners can radiate signals which can cause problems like that.

Two way radios too. I have a Kenwood TM241a that whenever I stretch the speaker mic cable out straight throws a really strong carrier in the 121 MHz range and will set off the close call on all my scanners.