BCD396T P25 Pre-Transmission Clicks

[EDACS_Tech]

I am curious as to whether or not the following would be considered "normal" operation:

When P25 trunking transmissions are initiated I hear one or two brief, but very noticible, clicks. This will happen on the first transmission on each frequency, so when a call transitions from one repeater to another, the first transmission on the new repeater will have the click noise. This happens ONLY on P25 transmissions, not analog. Here is a URL to an audio sample of these clicks:

http://ColoradoRadio.home.comcast.net/clicks.wav

Here is a transcript of the audio sample detailing where you need to listen for these clicks:

clicks Officer: "Affirm"

Dispatcher: "1940, break 220 i'll show you available"

(transition to new P25 trunked repeater)

clicks Officer: "OK"

Dispatcher: "1940"

Officer: "211 arrival"

(transition to new P25 trunked repeater)

click Dispatcher: "1940"

I'm curious so that I can exchange the unit if this is not normal operation before the store warranty expires.

 

[Liverdog]

Interesting. Thanks for submitting the sound sample. I don't hear that click sound on the P25 systems here in Colorado on the 396T as you are experiencing...

What do you have your gain (AGC) settings on? Also, which firmware are you using?

 

[EDACS_Tech]

I've got the latest version of firmware (Version 1.11.03) and my P25 settings are Auto, P25 Response Time: -7, and P25 Reference Gain: +3. I've toyed with these settings, but it hasn't seemed to help.

 

[kikito]

I've got the latest version of firmware (Version 1.11.03) and my P25 settings are Auto, P25 Response Time: -7, and P25 Reference Gain: +3. I've toyed with these settings, but it hasn't seemed to help.

It does the same (the clicks) on our system (AK ALMR) since the original firmware.

 

[pro92b]

It does the same (the clicks) on our system (AK ALMR) since the original firmware.

Does the PRO-96 do that?

 

[kikito]

Does the PRO-96 do that?

Nope, it doesn't do that.