Coast Guard New Haven I only hear one side of the conversation on the 112 channel WHY

[Billygoat]

Coast Guard New Haven I only hear one side of the conversation on the 112 channel WHY?

 

[G7RUX]

That sounds rather like they might be operating half-duplex in some way, or perhaps you are just not reeiving the other path due to their transmitter being in a less effective location?

 

[KC1UA]

I'm guessing you're referring to 163.050, CG112.

Communications there are likely to be P25, encrypted for the most part, and also for the most part simplex in nature. As mentioned in post #2 the other station/vessel/whatever it may be is just simply out of range. The same thing happens here on Cape Cod where primary operations are on CG127, 171.2375. That's just the way it is.

 

[Billygoat]

That sounds rather like they might be operating half-duplex in some way, or perhaps you are just not reeiving the other path due to their transmitter being in a less effective location?

Yes I miss the old days listening on the open VHF and HF used to hear the aircraft and ships on HF

 

[ecps92]

Coast Guard New Haven I only hear one side of the conversation on the 112 channel WHY?

to add onto what Scott mentions, what make/model scanner ?

Some Scanners ignore ENC transmissions, it could be your scanner is hearing the CLR but rejecting the ENC

 

[Billygoat]

to add onto what Scott mentions, what make/model scanner ?

Some Scanners ignore ENC transmissions, it could be your scanner is hearing the CLR but rejecting the ENC

SDS200 and even the 325P2

 

[ecps92]

SDS200 and even the 325P2

Not familiar with either, so I will let the actual users of those two report what they know for blocking ENC

 

[JethrowJohnson]

The SDS200 usually ignores encrypted transmissions. Not certain about the 325P2 though. But like @G7RUX said, if they're using simplex, then the one you're not hearing is probably just too far away.