MD-9600 timeslot confusion

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ON9CJA
Posts: 2
Joined: Thu Apr 27, 2023 12:07 pm

MD-9600 timeslot confusion

Post by ON9CJA » Sun Mar 24, 2024 3:41 pm

Dear Opengd77 dev team,

For this test I'm using a MD9600 with build 20240317165151 HW v5 and a MDUV380 with build 20240312163717 b453219 D.
I have an MMDVM DMR repeater running WPSD with modem firmware version RB_STM_DVM:20221121. It listens on 433.975 MHz and sends on 145.275 MHz.
When I key up with the MD-9600 on TS1 I see TS2 in the MMDVM logs. The same when I key up on TS2 I see TS1 in the MMDVM logs.
When I do the same test with my MD-UV380 everything works correct.
When I do the same test with the MD9600 on a local Hytera repeater (ON0NOK), which is in the 70cm band with RX and TX, the timeslots received by the repeater are correct.

MMDVM logs - keyup MD-9600 on TS1:
M: 2024-03-24 15:20:04.112 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 2 444 -31 168
M: 2024-03-24 15:20:04.171 DMR Slot 2, received RF voice header from ON9CJA to TG 9
M: 2024-03-24 15:20:04.172 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 2 444 -22 167
M: 2024-03-24 15:20:04.232 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 2 444 -9 167
M: 2024-03-24 15:20:04.291 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 2 444 1 167
M: 2024-03-24 15:20:04.651 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 2 444 1 168
M: 2024-03-24 15:20:05.011 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 2 444 -1 170
M: 2024-03-24 15:20:05.731 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 2 444 -5 175
M: 2024-03-24 15:20:06.452 Debug: DMRSlotRX: voice terminator found slot/pos/centre/threshold 2 444 7 182
M: 2024-03-24 15:20:06.458 DMR Slot 2, received RF end of voice transmission from ON9CJA to TG 9, 2.2 seconds, BER: 0.0%, RSSI: -43/-43/-43 dBm

MMDVM logs - keyup MD-9600 on TS2:
M: 2024-03-24 15:23:26.233 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 1 445 -27 175
M: 2024-03-24 15:23:26.287 DMR Slot 1, received RF voice header from ON9CJA to TG 9
M: 2024-03-24 15:23:26.293 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 1 445 -16 174
M: 2024-03-24 15:23:26.353 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 1 445 -3 174
M: 2024-03-24 15:23:26.412 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 1 445 7 173
M: 2024-03-24 15:23:27.132 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 1 445 13 170
M: 2024-03-24 15:23:27.492 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 1 445 8 167
M: 2024-03-24 15:23:28.213 Debug: DMRSlotRX: voice terminator found slot/pos/centre/threshold 1 445 2 168
M: 2024-03-24 15:23:28.219 DMR Slot 1, received RF end of voice transmission from ON9CJA to TG 9, 1.8 seconds, BER: 0.0%, RSSI: -43/-43/-43 dBm

MMDVM logs - keyup MD-UV380 on TS1:
M: 2024-03-24 15:25:41.320 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 1 445 -33 173
M: 2024-03-24 15:25:41.354 DMR Slot 1, received RF voice header from ON9CJA to TG 9
M: 2024-03-24 15:25:41.379 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 1 445 -28 172
M: 2024-03-24 15:25:41.439 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 1 445 -20 172
M: 2024-03-24 15:25:41.499 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 1 445 -17 171
M: 2024-03-24 15:25:41.859 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 1 445 -12 170
M: 2024-03-24 15:25:42.219 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 1 445 -11 167
M: 2024-03-24 15:25:42.939 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 1 445 -10 161

MMDVM logs - keyup MD-UV380 on TS2:
M: 2024-03-24 15:30:10.261 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 2 446 -37 181
M: 2024-03-24 15:30:10.316 DMR Slot 2, received RF voice header from ON9CJA to TG 9
M: 2024-03-24 15:30:10.321 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 2 446 -30 180
M: 2024-03-24 15:30:10.381 Debug: DMRSlotRX: voice header found slot/pos/centre/threshold 2 446 -22 180
M: 2024-03-24 15:30:10.441 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 2 446 -14 178
M: 2024-03-24 15:30:11.161 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 2 446 -7 173
M: 2024-03-24 15:30:12.241 Debug: DMRSlotRX: voice sync found slot/pos/centre/threshold 2 446 -9 164
M: 2024-03-24 15:30:12.601 Debug: DMRSlotRX: voice terminator found slot/pos/centre/threshold 2 446 -7 163
M: 2024-03-24 15:30:12.607 DMR Slot 2, received RF end of voice transmission from ON9CJA to TG 9, 2.2 seconds, BER: 0.1%, RSSI: -43/-43/-43 dBm

Could this behaviour be triggered by a misconfiguration in the MD-9600?
Did you see this problem before?

Thanks
73s
Joris

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