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ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 3:41 pm
by dispatcher7586
Hello, I have an ht1250 and it will not pick up a tranmission. it will transmit, but it wont pick up anything. Plus it has the top red led blinking.
What may be the problem. The firmware version is 5.12.02.
Thanks
Re: ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 4:15 pm
by Mfire39
Wrong RX PL programmed.... Try holding down the monitor button if you have one programmed and see if you hear the traffic then..
-Marc
Re: ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 5:03 pm
by dispatcher7586
I made sure the PL was correct. I tried 2 different Tx and Rx freqs with the correct PL and it still didnt work. The firmware was upgraded to 5.12.02 recently.
Re: ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 5:38 pm
by dispatcher7586
Mfire39 wrote:Wrong RX PL programmed.... Try holding down the monitor button if you have one programmed and see if you hear the traffic then..
-Marc
Sorry mods for the double post. Your right. When the mon/sticky mod is pushed it comes over. How do I fix it?
Re: ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 5:52 pm
by Batwings21
Find the correct pl. Contact your system admin/ radio shop and they should have it. Or get a device like a service monitor or pl counter and count it yourself. Sorry there is no quick and easy way other than that or trial and error.
Re: ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 5:58 pm
by dispatcher7586
Batwings21 wrote:Find the correct pl. Contact your system admin/ radio shop and they should have it. Or get a device like a service monitor or pl counter and count it yourself. Sorry there is no quick and easy way other than that or trial and error.
No no no, I have the correct DPL tones for each channel. Its just that I do not understand why the radio is doing this?
Re: ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 6:31 pm
by Batwings21
Ah, if they are DPL codes, look at the invert dpl checkbox. If they are checked, uncheck them. If not try checking them, maybe the dpl's are inverted and they did not tell you. Also, does it happen with pl codes? or only dpl.
Re: ht1250 No Audio with a red light blinking.
Posted: Tue Mar 24, 2009 6:39 pm
by dispatcher7586
Batwings21 wrote:Ah, if they are DPL codes, look at the invert dpl checkbox. If they are checked, uncheck them. If not try checking them, maybe the dpl's are inverted and they did not tell you. Also, does it happen with pl codes? or only dpl.
hmmmmm.....I will have to check. Never had this kind of issue before.
Re: ht1250 No Audio with a red light blinking.
Posted: Wed Mar 25, 2009 2:29 am
by RKG
Blinking Rx LED but no audio implies that some unmute condition that is programmed has not been met. In addition to the foregoing suggestions, review the codeplug to be sure that the channel has not been inadvertently programmed for SelCall or Call Alert.
Re: ht1250 No Audio with a red light blinking.
Posted: Wed Mar 25, 2009 7:33 am
by HLA
is this happening when you are scanning? try removing the pl/dpl and set it to csq and make shure you don't have the invert box checked. if you have the red light flashing you are recieving, you have a rule enabled that's blocking out the audio. see if you have something like your recieve section set to "and" with qcII or something like that? and is this the only channel it's doing this on? i'm assuming the audio does work on other channels? and did this just start happening out of nowhere or after being programmed?
Re: ht1250 No Audio with a red light blinking.
Posted: Wed Mar 25, 2009 11:32 am
by dispatcher7586
Its the software. I reflashed 2 ht1250's to 5.12.02 now they start acting up. Can anybody help me fix this ASAP.
Re: ht1250 No Audio with a red light blinking.
Posted: Wed Mar 25, 2009 1:57 pm
by SD70MAC
I have an VERY early HT750 at work v1.00.01 firmware that does the same thing. I thought the firmware upgrade would fix it but it did not work,it must be a hardware issue on the early boards. If you use pl's its ok but it will loose about the first 2-3 seconds of every conversation so we don't use it anymore. You may get run over in that amount of time. Those early HT750's made them switch to Kenwood.
Re: ht1250 No Audio with a red light blinking.
Posted: Thu Mar 26, 2009 11:25 am
by dispatcher7586
Guys, thank you so much. I was able to fix it. It wasnt the tuning, PL and invert. It was the tanapa letter that was wrong. Thanks again

Re: ht1250 No Audio with a red light blinking.
Posted: Thu Mar 26, 2009 1:11 pm
by escomm
What does the tanapa have to do with the receive squelch tone???
Re: ht1250 No Audio with a red light blinking.
Posted: Thu Mar 26, 2009 1:32 pm
by dispatcher7586
escomm wrote:What does the tanapa have to do with the receive squelch tone???
It was the wrong band split tanapa, im assuming. Thats why it didnt Rx.
Re: ht1250 No Audio with a red light blinking.
Posted: Thu Mar 26, 2009 1:36 pm
by Batwings21
escomm wrote:What does the tanapa have to do with the receive squelch tone???
When you use the inofficial lab flashgrade kit on a radio and force in the wrong codeplug, things tend to not work well. The problem is the O.P. didn't tell any of us the radio had been monkeyed with. Glad he got it working though.
Re: ht1250 No Audio with a red light blinking.
Posted: Thu Mar 26, 2009 4:12 pm
by ve3nsv
I have seen that happen before when an HT-750 has been modified. Usually switching from the "A" to the "B" codeplug or vise versa will correct the problem.
Radio will just constantly flash as if it is receiving something but never does.