Scanning paging channels

[HFR427]

We are experimenting with a new paging channel while also having to monitor our current paging channel.
I have tried to create two paging channels and put them both in the same scan list and set it on auto scan so that when it is set to either of those channels it goes into auto scan and the one selected is priority. I cannot get any activation from either by tones. If i select "or" instead of "and" and open them up it will alert appropriately but then it is an open monitor situation. Also if i turn off auto scan, each individual channel works as a pager as it should. I've tried quite a few combinations and i cannot get this to work. Is this possible? If so what am i missing or doing wrong?

 

[krokus]

What type of radios are you using, to try and do this? What type of tone system is being used for alerting?

 

[HFR427]

Oooops, i knew i'd left something out. HT1250 with standard two tone (A/B) paging.

 

[RKG]

Generally speaking, a channel programmed for QCII paging will not work if it is accessed via a scan function. Timing is an aspect of the QCII format, and when the radio is scanning it generally enters a channel sending the A tone in the middle of that tone, which then ends too quickly to meet the timing standard. The rule amongst radio techs is that paging channels are set for "disabled" in the scan parameter.

If both channels used the same freq (but different QC tones), you could program the receiver for A-B/C-D, at the cost of losing the ability to decode group tones.

 

[HFR427]

We have a long enough pre-time so that a channel can lock up if it were on scan. If i select "or" instead of "and" it works perfectly. I just can't get a lock-out (sleep) mode where it will still activate. If i select "and" and then press the monitor button and activate tones it works. I'm just trying all possible combinations to see if this is possible.

I've dropped the PL scan lockout option, tried PL scan disabled, and have even gone as far as to make both frequencies CSQ instead of TPL.