The TH-D72 can be used to remotely control a TM-D710. This allows remote control of VHF Frequency/Memory Channel, TX power, CTCSS/DCS tones and to enable/disable cross-band repeat.

The remote control function uses specific DTMF sequences to instruct the TM-D710.

To enable “Remote Ctrl” mode :

1. Select the correct UHF uplink frequency to match the TM-D710
2. Turn off the TH-D72
3. Hold MR and PTT
4. Turn on the TH-D72

The display will show “Mobile Ctrl”

The TM-D710 must also be put in Remote Control mode.

On the TM-D710

• select VHF mode on both sides
• turn off the APRS TNC if it's on
• set the left side to the wanted VHF Frequency
• set the right side to the UHF Uplink/control frequency to match the TH-D72
  • the first steps are done by selecting PM5 on my TM-D710
• turn off
• hold Rev button
• turn on

The TM-D710 should now be in remote mode.

To restore normal operation repeat the same sequence of

• Turn off
• Hold Rev
• Turn on

Successful commands sent to the TM-D710 will receive a “pip pip pip” revertive.

The commands are send using the TH-D72 keypad, remapped as:

• to change VHF Frequency to 145.500
  • 8 (VFO Mode)
  • A (Enter) 145500 A (Enter)
• to change to memory channel 2
  • 9 (Memory Mode)
  • A (Enter) 002 A (enter)
• To turn on Cross-Band Repeat
  • C
• To turn off Cross-Band Repeat
  • D

Once the TM-D710 is in the correct condition - VHF Frequency, tone, power, cross-band repeat - it's possible to restore the TH-D72 to normal operation and use it to access the cross-band repeater and use DTMF tones as normal (eg. to control another system via the repeater). Just exit “Mobile Ctrl” mode on the TH-D72

• Turn off
• hold MR and PTT
• Turn on

You should be back in normal operation mode.

Obviously, to control the TM-D710 again (eg to disable cross-band repeat) simply go back to Mobile Ctrl mode in the same way, and send the required commands.

• th-d72_all_e.pdf
• th-d72ae_idm.pdf

Page created Wed May 25 00:01:26 2022 by John Pumford-Green

Page last updated: 02/05/24 08:05 BST