Operating instructions
DMH Series VHF Radio  Installation and Programming 
BK RADIO  Page 2-15 
2.2.3.10 TRANSMIT NAC 
The next field is the Network Access Code (NAC) for Channel 1 
transmit. This value is only used if the transmit mode selected was 
Digital or Mixed, or if User Channel Guard is activated. The upper part 
of the display will show ‘PRG TX ID CG’. The lower part of the display 
will show ‘NACXXXX’ where XXXX is the Network Access Code in 
decimal. 
1.  If the NAC is correct, press the [FCN] key to advance to the next 
field. 
2.  If a new NAC is desired, press the [CLR] key followed by the digits 
of the desired NAC. Then press the [ENT] key to store this NAC and 
automatically advance to the next field. 
2.2.3.11  TALK GROUP ID 
The next field is the Talk Group ID. This value is only used if the 
transmit mode selected was Digital or Mixed, or if User Channel Guard 
is activated. The upper part of the display will show ‘PRG ID’ and the 
phone icon. The lower part of the display will show ‘TGXXXXX’ where 
XXXXX is the Talk Group ID. 
1.  If the displayed value is correct, press the [FCN] key to advance to 
the next field. 
2.  If you wish to change it, press the [CLR] key followed by the digits 
for the new TGID, then [ENT] to store the new value and 
automatically advance to the next field. 
2.2.3.12
TRANSMIT SECURE MODE 
(Only on models configured for encrypted operation) 
The next field is the Transmit Secure Mode setting. The upper part of 
the display will show ‘PRG TX ID’ and the lower part of the display will 
show ‘SEC – XXX’ where XXX can be ‘CLR’ for always clear, ‘ENC’ for 
always encrypted, or ‘SW’ for selectable with the “TX Secure” switch. 
1.  If the mode is correct, press the [FCN] key to advance to the next 
field. 
2.  If a new mode is desired, press the [PRI] key to cycle through the 
mode settings. Press [ENT]  to store the new mode and 
automatically advance to the next field. 
2.2.3.13
TRANSMIT KEY REFERENCE 
(Only on models configured for encrypted operation) 
The next field is the Transmit Key Reference. The upper part of the 
display will show ‘PRG TX ID’ and the lower part of the display will show 
‘KEY – XX’ where XX is the default key slot (1-32) used when 
transmitting on the channel. Encryption keys must be loaded into the 32 
key slots using an APCO Project 25 compatible keyloader. In addition, 
the radio’s key table must be configured with the DMH PC programming 
software to link the loaded keys to the key slots. 
PRG TX   ID CG 
 NACXXXX 
 PRG  ID   
 TGXXXXX 
 PRG  TX   ID 
 Sec - enc 
 PRG  TX   ID 
K
eY - 04 










