Search found 3 matches

by db9cr
Sun Apr 25, 2021 8:51 pm
Forum: MMDVM_HS Hat(s)
Topic: Survey: Minimum receive RSSI on various ADF7021 based MMDVM boards
Replies: 2
Views: 718

Re: Survey: Minimum receive RSSI on various ADF7021 based MMDVM boards

Sample Reply: $ egrep 'description|BER' /var/log/pi-star/MMDVM-2021-04-25.log I: 2021-04-25 20:36:21.644 MMDVM protocol version: 1, description: D2RG_MMDVM_HS-v1.5.2 20201108 14.7456MHz dual ADF7021 FW by CA6JAU GitID #436cebb M: 2021-04-25 20:36:40.207 DMR Slot 2, received RF end of voice transmiss...
by db9cr
Sun Apr 25, 2021 8:49 pm
Forum: MMDVM_HS Hat(s)
Topic: Survey: Minimum receive RSSI on various ADF7021 based MMDVM boards
Replies: 2
Views: 718

Survey: Minimum receive RSSI on various ADF7021 based MMDVM boards

Hello, I am hunting a strange receive problem on a ADF7021 based MMDVM duplex hotspot. Can you please check what minimum RSSI indication with a reasonable BER you can find in your log? Please execute the following command as user pi-star or root on your hotspot: $ egrep 'description|BER' /var/log/pi...
by db9cr
Sun Apr 25, 2021 8:33 pm
Forum: MMDVM_HS Hat(s)
Topic: MMDVM HS HAT not receiving weak signals
Replies: 1
Views: 598

MMDVM HS HAT not receiving weak signals

Hello, According to Spec, the ADF 7021 can receive well in the -100dBm range. My pi-star is showing a different behavior: When my radio is close to the MMDVM, everything is fine. BER is well below 0.3%. The RSSI is indicated in the range of 45-50. When I increase the distance, in the range of about ...