XPR 7550 - Quik-Call II Programming

[KC2ZHY]

I apologize in advance if this had been discussed already, but I have been unsuccessful in finding anything with my searches.

Moving on: I have an XPR 7550. I've been trying to set it up to alert with QCII tones:

I have the correct tone pairs listed under the "Signaling Systems"
I have the correct frequency under the channel
Under the channel, I have the signaling system set to the tones I want
Signaling squelch set to "AND" (have also tried as "OR")
Unmute set to "Std Unmute, Mute"
Set up on "receive only" channels.

Despite all this, I can't get the radio to "beep" and open squelch upon receiving the tones. Clearly, I'm missing something here; hence, this post.

Thanks for your help in advance!

 

[slapshot0017]

Did you try in the Quick Call setting it to call alert with voice?

 

[KC2ZHY]

Did you try in the Quick Call setting it to call alert with voice?

Yes I did. It's currently set to "Call Alert w/ Voice"

 

[slapshot0017]

I haven't been able to try the function out yet as I haven't been able to get home, but its should all work. Try keeping it on Or because that is whats its supposed to be. Do you have a Signaling system and a contact setup? Also try setting it to pl for data. It may have some effect or not. Like I said I'm not exactly sure.

 

[KC2ZHY]

I haven't been able to try the function out yet as I haven't been able to get home, but its should all work. Try keeping it on Or because that is whats its supposed to be. Do you have a Signaling system and a contact setup? Also try setting it to pl for data. It may have some effect or not. Like I said I'm not exactly sure.

I'm under the assumption that OR will just open up the channel on PL, with or without the QCII activation. I want it to only open up with QCII activation. I'll trial it with OR again though.

 

[Kirk]

Did you ever solve this? I'm having the same issue.

 

[NorCalrescue]

If I'm not mistaken, the two-tone format must be 1 second / 3 seconds for QCII to work in Motorola radios. Any deviation from that and I believe it won't detect the tones for an alert. Many systems have gotten away from traditional 1 sec / 3 sec and have gone to shorter tone lengths like 1 sec / 1 sec.

 

[slapshot0017]

I have tested it on mine. It works perfectly fine.

MDC----------------------------------
Call type: Call Alert w/ Voice
Call Format: A-B
Tone A: whatever
Tone B: whatever
Auto Reset: None
Sidetone: Long
Pretime: 500
Long Duration: 3 sec
Patience: 60sec
Quick Call Contact--------------
QCII-MDC system
Revert: selected
Call Format: two tone
Tone A: whatever
Tone B: whatever
Strip TPL/DPL: unselected
Channel-----------------------------
signalling- Quick call contact
Squelch- OR
Unmute Rule- STD
All checkboxes on the RX side checked.

Mine works the way its supposed to. I am just having problems with the signalling squelch resetting on me while scanning the priorities, but that is unrelated to this as I have done extensive testing...

 

[ramal121]

If I'm not mistaken, the two-tone format must be 1 second / 3 seconds for QCII to work in Motorola radios. Any deviation from that and I believe it won't detect the tones for an alert. Many systems have gotten away from traditional 1 sec / 3 sec and have gone to shorter tone lengths like 1 sec / 1 sec.

I don't have a portable to test right now, but I did try it on my XPR5550. Programmed up a channel for QCII and it worked right off the bat. Played with the encode timing a little and found out you have to have more than 3/4 of a second of either A or B for the decoder to register. Running the time down on either, 750 milliseconds will not decode. 800 milliseconds or more decodes properly. You'd have to measure precisely to see what your dispatch is sending out.

A neighboring county has changed their two tone timing to 0.5 and 1.0 seconds. The FS Informers seem to like that however I can see where a XPR would fail.