DTMF Mic on a GM300 ?

M3SGC · Post by **M3SGC** » Sat Sep 18, 2004 5:55 am

A friend is thinking of buying a GM300 for Ham use but needs to be able to send DTMF tones to open up his IRLP node, will a DTMF Mic work on a GM300 ? I presume it will but am checking for him before he spends a few Quid.

sglass · Post by **sglass** » Sat Sep 18, 2004 3:44 pm

yeah they make dtmf mics for the radius/maxtrac line

a few variations out there

I kind like the all black ones, some prefer the backlit

Seth

I actually rewired a mactrac dtmf mic to my spectra. Kinda nice not having to dick with autodial slots

greywolf · Post by **greywolf** » Sat Sep 18, 2004 6:34 pm

sglass may I get the wire diagram you did for the mactrac to spectra dtmf. I would like to have one of my radius dtmf mike's to work with a spectra.

sglass · Post by **sglass** » Sat Sep 18, 2004 6:57 pm

I'll try to take a picture

1motoman · Post by **1motoman** » Sat Sep 18, 2004 8:30 pm

If you have the "A7" face plate, you can enable DTMF generation from the front panel with the RSS.

M3SGC · Post by **M3SGC** » Sat Sep 18, 2004 11:53 pm

Thankyou once again Batpeople, I will now let my friend know and he can part with a few quid.

sb · Post by sb » Mon Sep 20, 2004 8:24 am

Hi!

Motorola DTMF mike does not have the a,b,c,d that you may need for HAM aplications.

SmilnDon · Post by **SmilnDon** » Sun Dec 26, 2004 7:41 pm

I was looking on eBay because I need a DTMF mic for a GM300 VHF I was using for 2 Meter Ham. I notice there are several with different part numbers. Which ones are compatable with the GM300? Are the same DTMF mics for the GM300 also usble on the Maxtrac series?

I imagine they are, but I thougth I would ask in case there was something I didnt know. (See.. I am a HAM and I am admitting I dont know everything!)

sglass · Post by **sglass** » Sun Dec 26, 2004 8:30 pm

yeah dude same mic

I usually open them up ans shirt the back so I don't have ot keep it on a clip to have tone squelch.

Seth

tvsjr · Post by **tvsjr** » Sun Dec 26, 2004 9:12 pm

sb wrote:Hi!

Motorola DTMF mike does not have the a,b,c,d that you may need for HAM aplications.

Ahh, but they do with the addition of the mighty gear shift!

http://www.armadillo.org/
Click on Members Equipment
Click on 16-button Moto Mic

Fourth-column is required to control our system, so a modification was made.

jackhackett · Post by **jackhackett** » Mon Dec 27, 2004 10:02 am

I believe I am correct in saying that the DTMF mic made for the CDM series radios will not work on a GM300?

I don't recall the model number for the mic, but I know it doesn't generate the tones itself, it just sends serial data to the radio and the radio generates the tones. This mic will also not generate the tones when hooked as a remote mic through the accessory connector. (Kenwood DTMF mics work this way too)

Also, is the older style that does generate the tones still available? I think last time we tried to get one and it was discontinued.. we ended up using the Shure Modu-link mics.

DTMF Mic on a GM300 ?

DTMF Mic on a GM300 ?

Thankyou...