FRS Ch 5 data bursts? - West OKC / Bethany area

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n5usr

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Bethany, OK
I've recently been scanning the FRS channels again and noticed in my area (Bethany, West OKC) there's a pretty strong signal that's transmitting data bursts (I guess!) on channel 5 (462.6625) continuously. It's three sets of two very quick bursts each set separated by 1.5-2 seconds, then a pause of about 5 seconds, and repeat.

At first I thought it was just a kid kerchunking away, doing double-taps with one of those tail beeps turned on - but if so his finger must be falling off after weeks of continuous activity! :ROFLMAO:

While typing this I have been listening to it on a Icom ham radio and watching the S-meter I notice another interesting characteristic, the first two sets in each cycle are around S-3/S-4 and the third burst is full scale. Maybe I'm hearing multiple units communicating with each other?

Any thoughts what it might be?

I've been thinking about ways I might be able to decode it, could be a diverting time sink... :unsure:
 

mmckenna

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Locally we had a large corporate farm running John Deer RTK radios on FRS channel 3. The radios send out GPS data to the tractors. Someone decided that FRS was a free for all and figured it was OK. Didn't end well for them, one of our members contacted the FCC and they found them.
https://docs.fcc.gov/public/attachments/DOC-357057A1.pdf

Might be a local farm in your area doing the same thing if it's continuously happening. If it's sporadic, then maybe the Rino's.
 

HogDriver

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Does this apply to National Business Itenerant freqs, as well? I have one in my area doing almost continuous data bursts.


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nd5y

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Wichita Falls, TX
GPS RTK units used in farming and construction are commonly licensed for:
461.025
461.050
461.075
461.100
461.125
461.150
462.125
462.375
462.400
464.500
464.550
464.600
464.625
464.650
464.700
464.725
464.750
but they could be on other frequencies too. They continuously send a 1/2 second long data burst once a second.

I don't know what Rinos sound like or how often they send data.
FRS/GMRS rules have limits on how long and how often data can be transmitted. I don't think Part 90 does.
 
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