Well, I'm listening to a transmission in 148.something, and I just hear weird noises repeating over and over again. Is this is a scrambled transmission or a trunked system?
Trunking at 148 Mhz?
- Thread starter N467RX
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N4JNW
Member
Could be D-Star..
It depends. It could be trunking, but we'd have to hear an audio sample of what you are hearing.
N4JNW
Member
Yeah if you could hook us up with a short audio clip.. That would be awesome..
Cowman
Member
I'd bet you're listening to either a shadow or a ham radio operator's data transmission.
N4JNW
Member
Cowman said:
I love the Ivomec logo as your Avatar... LOL
In regards to D Star and ham, it won't be either if he's listening to "148 something" as the 2 meter amateur band stops at 148. Federal military starts at 148 and they have plenty of trunking systems in that range (136-144 and 148-150.xxx).
elk2370bruce
Member
It could also be a Civil Air Patrol exercise "ELT fox hunt". That would sound like a repeating data stream. Just a SWAG. I do not here it.
No, no CAP, I live in Panama, according to the government website where I got the frequency, it belongs to a company. I believe this is a scrambled and not a trunked, because I can listen to some transmissions, but some have the noise
Trunking could be on any band/freq, technically speaking.
What about digital trunking systems?
hankv
Member
I have two systems in my area that are digital:N467RX said:
One is a Motorola Type II VHF system in the 160Mhz range using Analog and APCO-25 Common Air Interface. Mostly P25
The Other is a Project 25 Standard in the 406 Mhz range
ScannerDude244
Member
I have an fire dept in my area that's in the 148's fed dept that is.
It could be a telemetry data stream.
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