TB7100 to RB-STM32-DVM Setup

1. Setting up the TB7100 to use the RB-STM32-DVM
2. Tap Points
3. Programming the TB7100 for interfacing to RB-STM32-DVM
4. F5UII's Configuration
5. SK2HG TB7100 Modem Settings
6. MMDVMCal

1. TB7100 Repeater
2. TB7100 Config for the RB-STM32-DVM
3. TB7100 RB-STM32-DVM Troubleshooting
4. ../../ RB-STM32-DVM-to-TB7100-Cable (DB15 Internal)

Setting up the TB7100 to use the RB-STM32-DVM

Tap Points

• C - Bypass Out: all audio is diverted out at this tap point.
• D - Split: a sub-set of audio samples is detected and diverted out at this tap point.
• E- Splice: audio processing is inserted with the signal path at this tap point.
  The tap out type is the same as C - Bypass Out.
  
  (Note: If E - Splice is selected for a tap out type, the Tap In point must be at the same location,
  and the Tap In Type also set to E - Splice.)

• PSD: Peak System Deviation
• LPF: Low Pass Filter
• HPF: High Pass Filter
• ALC: Auto Level Controlled

Programming the TB7100 for interfacing to RB-STM32-DVM

F5UII's Configuration

• 6 RSSI (optionnal for RX way)
• 7 Audio Input (TX way)
• 12 PTT (TX way) the PTT pin will be configured as alternate output with the Tait programming application
• 13 Audio Output (RX way)
• 15 Ground

SK2HG TB7100 Modem Settings

The TB7100 has DSPs in both the TX and RX path so the signals are delayed.

Before struggeling with the RX path I decide to open the Squelch as the Audio output was squelched. It had to be done with the Tait calibration program (TB71_CAL) not with the normal CPS program (TB71_XPA), by setting a low value for squelch opening, I think I put -136 dBm there.

MMDVMCal