User Manual

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The BTECH GMRS-50V2 has a full implementation of DTMF, including the A, B, C and D codes. The

numerical keys, as well as the [*/scan], and [#/lock], keys correspond to the matching DTMF codes as you

would expect. The A, B, C and D codes are located in the [MENU], , and [EXIT/AB] keys

respectively.

Manually TX DTMF Tones: To manually send DTMF codes, press the key(s) while holding down the PTT

key.

Automatically TX DTMF Tones:

Save it to Memory and Transmit: You can also program DTMF tones to the saved calling list (requires

the PC software) to the one of the 15 Memory call banks in the radio. To transmit select the Pre-set

DTMF saved setting on Menu 22 (S-Info) and then press the call key to send the saved DTMF TX tones.

Remote Stun

First set the DTMF Remote Stun Code and Master Control ID in Software: When your radio receives the

DTMF Remote Stun Tone Sequence (Set by software-also requires Menu 18 to accept DTMF signaling) it

will command the radio to disable transmitting abilities. The Master ID station must first identify and

send the PTTID (set in software as “Master ID”) – once the Master Station identifies itself, the radio is

set to receive command tones, if the Monitor Remote Stun tones are received - the radio will no longer

be able to transmit. Both the master ID station and remote stun codes must be set up in software.