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HT1250 selective call opens too early?

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MFDHoward

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Aug 6, 2011
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How would I fix this? When I get the standard Motorola two call received beeps after the tones come across the radios audio opens too early where I can actually hear the last bit of the tone.
 

spitcher1992

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Somebody correct me if I am wrong. But I believe you would go into your QCII settings, where it says format you want to select a-b/ long b. it will also have an option for "long tone duration". Try setting that to a higher number and see what happens. I would have tested it before posting but I'm away from the computer.
 

CommJunkie

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The Long B tone is for an 8-second tone. My CDM does the same thing where I can hear the last few miliseconds of the B tone and it never really bothered me, as long as my radio alerted when it came across.
 

SteveC0625

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How would I fix this? When I get the standard Motorola two call received beeps after the tones come across the radios audio opens too early where I can actually hear the last bit of the tone.
I've been through the CPS several times and can not find any place that the decode times can be altered to do what you want.

You also need to remember that the length of the transmitted tones is determined by the sending system. Ideally, QC-II is one second/three seconds with a 200 ms gap between the first and second tones. Most decoders will actually require less than the 3 second B tone to
alert. Modern technology could offer us encode/decode times much shorter, but the QC-II is very widely spread in the US so it is what it is.

If you hear a bit of the B tone after the radio alerts, what's the harm?
 

cmdrwill

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I

If you hear a bit of the B tone after the radio alerts, what's the harm?
Exactly..... Just listen the Chicago Fire and Emergency call-outs. The radio decodes the last tone and the audio is enabled even while the last bit of the second tone is STILL being transmitted.
 
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