Batboard

Ok, I have been messing with this, looking on the forums, and cannot figure this out.

I just received my HT1000. It is a 16ch VHF with the model number of H01KDC9AA3DN with firmware 4.01.

I am trying to get Quik-Call to work with my town's fire channel. I want to make it a PAGE only channel. I set the Signaling Muting Condition to "AND" to make this true. I also am leaving Radio Sq. Unmute/Mute to "STD/STD".

Here is my problem. I have been switching between the two and I don't know why it isn't working. I have another transceiver simulating our Fire tones on a MURS frequency. It is a 1 second, followed by a 3 second tone. The Voice on the channel is encoded in 131.8 TPL. THE PAGING TONES ARE ALSO ENCODED WITH 131.8 TPL.

I have tried just "Quik-Call II" and "TPL/Quik-Call II" and neither work. HOWEVER, no matter which one is set, sending the tones WITHOUT A PL sets the Radio off. What is going on?

Thanks in advanced for the replies. If you need more information, just ask!

I take it you town's tapout is done with PL, and this radio will not properly decode QCII & PL? Or does it only mess up with your test radio doing the encoding? On this channel, have you set the rcvr PL for CSQ, and assigned QCII as the signalling?

There may not be a fix for it. Moto standard was to xmit paging without PL. If the rcvr sees a proper PL, it will open whether or not paging tones were sent. If it sees only paging tones, then it decodes and alerts.

You may have to experiment with setting your rcvr to CSQ or to a wrong PL to decode on QCII the way you want.

I have been experimenting with two tone decoding lately as well. Considering that original Minitors only monitored in the carrier squelch mode, that is how I would set up the HT1000. It is a mixed bag around here as far as agencies that transmit PL tone on the paging frequencies. The newest communication centers that went 800 mHZ trunked P25 for voice upgraded their VHF paging transmitters to carrier squelch. The old communications centers transmitted PL tone, with the exception of one rural fire department that I know of. I also seem to recall that the PL tone can, in some cases, cause problems when paging.

It was a matter of how the receiver handled audio and the possibility of falsing. If the rcvr did not have a high pass filter to cut the PL tones out, and the levels were too high, the tones could mix and false the old reed decoders fairly easily. Hence the reasoning to xmit paging without PL in the old days. These days most rcvrs apply a low pass filter no matter whether you declare CSQ, PL, or DPL to keep the sound out of the spkr audio. The HT1000 may have a set of rules built in that gives precedence to PL decode over signalling. He'll have to experiment some more to see if he can get past this limitation.

Bill_G wrote:It was a matter of how the receiver handled audio and the possibility of falsing. If the rcvr did not have a high pass filter to cut the PL tones out, and the levels were too high, the tones could mix and false the old reed decoders fairly easily. Hence the reasoning to xmit paging without PL in the old days. These days most rcvrs apply a low pass filter no matter whether you declare CSQ, PL, or DPL to keep the sound out of the spkr audio. The HT1000 may have a set of rules built in that gives precedence to PL decode over signalling. He'll have to experiment some more to see if he can get past this limitation.

Well, I have figured it out. It may have to do with my test tones from a transceiver that does 2-tone vs. the departments. I know that the departments are MUCH louder, so I thought about maybe that it was barley loud enough to set off when the codes were sent CSQ, but when you added a 131.8 PL to the mix, it mixed in and it just couldn't decode it.

When testing, I had the HT1000 set to IF Bandwidth of 25/30Khz, and the two tone transceiver outputting at 25Khz. Since I thought the tones were not "loud" enough, I figured I would leave the two tone transceiver at 25Kz, but change the HT1000 to 20Khz. This would make the audio seem louder to the HT1000, just like how they said mixing 25Khz and 12.5Khz on a system is bad (too loud and too soft audio).

So then all of a sudden, it worked. I set the squelch to TPL/QQ II and set it to 131.8. Tone out, and what do you know, it worked!

And I was also able to test it today officially. There was a real FD tone out and the HT1000 was still set to 20Khz and it went off. I am sure that if I set it back to 25Kz, it would work but only if the department sent them out since they are louder.

Thanks for the responses! I hope this helps other that have the same problem with the PL and Quick Call II.