Jump to content

BuyTwoWayRadios.com

Photo
- - - - -

Repeater output on 467.550 MHz repeater input channel (maritime users)

maritime interference bastards repeater input

  • Please log in to reply
2 replies to this topic

#1 intermod

intermod

    Advanced Member

  • Members
  • PipPipPip
  • 53 posts
  • GMRS Callsign:KAF1291

Posted 22 December 2018 - 01:51 PM

While scanning the GMRS input frequencies last week I  found a strong repeater output operating on 467.550 MHz using a 118.8 Hz output code.  It was heavily-accented maritime traffic.  We found their input on 457.550 MHz (10.0 MHz lower).  I presume they were using 118.8 in as well.  There were there for 48 hours before departing out the Golden Gate into the Pacific.

 

The choice of 118.8 is interesting as we get lots of spurious signals on that code (almost 2X 60 Hz??) most everywhere in the bay region - so most repeater owners have disabled that code.  So this helps them hide.  Yea, a conspiracy theory...  

 

Both the 467.55 and 467.575 have been taken over by maritime traffic here in the San Francisco area for many years (and sometimes includes 467.600, .625, .650 and .675), but it has always been direct mode/simplex. 

 

This is a disturbing development...

 

I am bringing these incidents up because if we lose control of our repeater input channels, high-level (and some low-level) repeaters will become impractical.

 

Greg

KAF1291

 

        


  • Hans likes this

#2 Logan5

Logan5

    Advanced Member

  • Members
  • PipPipPip
  • 734 posts
  • LocationFort Lauderdale Florida
  • GMRS Callsign:WQQT630
  • Ham Callsign:KK4PRC

Posted 22 December 2018 - 02:52 PM

Yes we had this happen here in South FL on our freq. 600, I recorded the comm's and managed to get the name and e-mail of a local coordinate. I e-mailed him a copy of the FCC charter and notified him of the fines and penalties for such illegal operation. He stopped communicating with the party immediately, and the rest stopped within a few hours. I agree this needs more attention, having a high power output on our input is catastrophic to even basic comm's.   


  • WRAA720 likes this

#3 intermod

intermod

    Advanced Member

  • Members
  • PipPipPip
  • 53 posts
  • GMRS Callsign:KAF1291

Posted 23 December 2018 - 01:54 PM

I would imagine Fort Lauderdale gets slammed with the same stuff we get here.

 

The problem here was affecting another person's repeater - we are not on .550.  But they were completely unaware of it.  With internet access at the site its relatively easy to monitor out input. 

 

Greg   


  • Logan5 likes this





Also tagged with one or more of these keywords: maritime, interference, bastards, repeater input

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users