Add dtmf key pad to APX8000 2.5

Covering the following Subscriber devices: APX1000/1500, APX3000, APX4000/4500, APX6000, APX6000XE, APX6500, APX7000, APX7000XE, APX7000L, APX7500, and APX8000.

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Posts: 16
Joined: Wed Oct 07, 2015 11:13 am
What radios do you own?: XTS/XTL5000, APX-6/7/8000

Add dtmf key pad to APX8000 2.5

Post by k7bpg »

Good Afternoon,

Is it easy as just swapping out the front plat on a APX8000 2.5 model to the keypad 3.5 model and it allow for the keypad to work? I noticed the dome buttons already exist under the 2.5 case, would like to use the key pad for shortcuts.

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Joined: Fri Jul 13, 2007 8:38 pm

Re: Add dtmf key pad to APX8000 2.5

Post by res6cue »

While true that the back chassis assembly is identical for both the 2.5 and 3.5 models, and the keypad contacts are right there under the solid plastic of a 2.5 housing, they are electronically disabled based on the radio's model number. In other words, the 2.5 is a 6AN and would need to be a 7AN in order for the DTMF keys to actually function. And no, there is no legitimate way to accomplish that.
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Joined: Wed Apr 02, 2003 10:35 am
What radios do you own?: APX XTS XTL TRBO 900MHZ

Re: Add dtmf key pad to APX8000 2.5

Post by N4KVE »

While there is no “legitimate” way, I once purchased a 6000 full keypad radio that started off life as a 1.5 radio. So a previous owner changed the 5AN to a 7AN. And it worked perfectly. GARY.
Posts: 57
Joined: Thu Sep 01, 2005 8:09 am
What radios do you own?: Motorola, GE, Kenwood, Yaesu

Re: Add dtmf key pad to APX8000 2.5

Post by WB5ITT »

Is there a way to send 4th column DTMF (A B C D) on an 8000? I have mine doing hot keypad and the DTMF tones work great but need 4th column to control my ham stuff....I COULD use a DTMF generator on my phone but I'd prefer to have the radio do it directly.

Chris WB5ITT
Trustee, W5APX
Radio Communications Tech, TX DPS
Region 2 - Beaumont, TX
Motorola, you may find better but you'll never pay more! 😉
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