Any way to run on TX CDM LS radio w/o mic connected?

wireless.friendly · Post by **wireless.friendly** » Wed May 24, 2006 3:05 am

Hi all!

Any way to run on TX my CDM LS radio without mic (or any other accessories which can do PTT) connected?

For e.g. by programming & pressing some button on the radio. Or for pressing some button in CPS software?

I check CPS, but do not found any helpful function.

K8TEK · Post by **K8TEK** » Wed May 24, 2006 3:39 am

Are you wanting to send QCII or something?

wireless.friendly · Post by **wireless.friendly** » Wed May 24, 2006 4:09 am

K8TEK

No matter. I need in carrier + PL or DPL. Other no matter.

Al · Post by Al » Wed May 24, 2006 5:30 am

By using the external PTT on the accessory connector and connecting that pin(pin 3, if I remember) to one of the programmable digital outputs you can control PTT from the front of the radio. You would need to program either aux control 1 or 2 to force the digital i/o pin that you're using to go low true when the corresponding button on the radio is pressed/released.

wireless.friendly · Post by **wireless.friendly** » Wed May 24, 2006 6:10 am

Al

ACC connector usage - this is no way in my case.

Any other ideas?

Really no way to do it by programming some button on the radio?

Al · Post by Al » Wed May 24, 2006 10:46 am

I don't know how many ways there are to tell you this, but there is no button on the front of the CDM that's directly programmable for PTT. If your accessory connector pin 3 is already in use, the only other way is to wire a pushbutton between pins 6 & 4 of an RJ connector and plug it into the mic jack.

wireless.friendly · Post by **wireless.friendly** » Wed May 24, 2006 11:23 am

I do not want use mic jack or ACC jack.

Really no any function availabe in buttons prigramming, which can make carrier (for e.g. call function, alarm, & etc.)?

HLA · Post by **HLA** » Wed May 24, 2006 11:45 am

what exactly are you trying to do that you can't use the front or rear connectors? what are you trying to transmit that you don't need a mic for?

wireless.friendly · Post by **wireless.friendly** » Wed May 24, 2006 12:18 pm

HLA

Do not ask please. Please suppose possible solutions.

HLA · Post by **HLA** » Wed May 24, 2006 1:03 pm

well if you don't want to tell us what you are trying to do so we can help you then the only 2 solutions are already mentioned, you have to use the front or rear connector.

jwb8734 · Post by **jwb8734** » Wed May 24, 2006 1:50 pm

I have not seen it without the Mic or Acc. I know I have seen in Amtrak's Acela that they use a Spectra or Astro that has a PTT button on the head but if you need audio you still need to tap the acc jack.

Good Luck

Post by **wavetar** » Wed May 24, 2006 4:36 pm

wireless.friendly wrote:I do not want use mic jack or ACC jack.

Really no any function availabe in buttons prigramming, which can make carrier (for e.g. call function, alarm, & etc.)?

Not with the regular LS radio. If you had the CDM1550 conventional-only radio, or the LS+ "6AN" model, you could program a button for "1 touch" message or status...but it would send MDC along with the carrier, and it would only last a second or so.

Your best solution as mentioned above would be to jumper pin 3 to one of the programmable accessory pins, set that pin for "aux control 1", and assign one of the buttons as "aux control 1" as well. You can choose to have the button toggle on/off with a press, or set it for a timer, up to 20 seconds. Surely you can use a simple jumper to help you accomplish what you want. Otherwise, no go.

Todd

phrawg · Post by **phrawg** » Thu May 25, 2006 3:36 pm

Carrier with no other info is a piece of cake.
just press the ptt button and Dont say anything

Phrawg

wireless.friendly · Post by **wireless.friendly** » Fri May 26, 2006 2:02 am

wavetar

Many thanks!

Pity

RFguy · Post by **RFguy** » Fri May 26, 2006 5:15 am

Funny that this is posted under "Hardware info" when he says there is no way he can use hardware to do the job.
Should we create a new section called "No hardware" info needed.

Just kidding around. How about phone interconnect and assign a button for connect. It would generate DTMF. Not even sure if this is a button option.

wireless.friendly · Post by **wireless.friendly** » Fri May 26, 2006 7:27 am

RFguy wrote:Funny that this is posted under "Hardware info" when he says there is no way he can use hardware to do the job.
Should we create a new section called "No hardware" info needed.

Just kidding around. How about phone interconnect and assign a button for connect. It would generate DTMF. Not even sure if this is a button option.

Thanks!

I try "Phone Mode" function for Conventional mode. I assign button & assign channel to my "Phone System".

It works! And no DTMF if Access/Deaccess fields kept clear.

I got short carrier (aprrox. 1 sec) with PL by pressing assigned button (must be pressed twice).

But some minor things that "Phone" programming required in each channel & assigned button must be pressed twice, not once.

These "things" not a big problem, but may be more easy way exist to get similar result?