Lora VHF crosband (bridge)

it’s been months i’ve been experimenting with Lora(t-beam/t-deck) using this firmware.
iGate
and Tracker
Tracker

my amateur friend experiment with Lora and crossband to VHF (Geoffrey Merck), vice versa.

i was trying to imitate his works, i think it’s worked like a champ. you can read about technical stuffs on his blog above. here’s my customized configuration to suit my needs. but the rests, you can follow from there.

aprx.conf

# This is the callsign and SSID our bridge wil operate under,
# we do not need it as each band will have it's own callsign
# yet we need to specify it otherwise APRX won't TX beacons (bug ?)
mycall  YD0BCX-11

# !!!!! this the location of the bridge used in beacons, adjust to your own!
myloc lat 0610.94S lon 10651.74E


# Below is some logging stuff
<logging>
        pidfile /var/run/aprx/aprx.pid
        rflog /var/log/aprx/aprx-rf.log
        aprxlog /var/log/aprx/aprx.log
</logging>

# here we define all the interfaces
# YD0BCX-4 is the VHF interface
<interface>
        tcp-device      127.0.0.1 8001 KISS
        callsign        YD0BCX-4
        tx-ok           true
        telem-to-is     false
</interface>
#YD0BCX-11 is the LoRa interface
<interface>
        tcp-device      192.168.1.6 8001 KISS
#initstring     "\x0dKISS ON\x0dRESET\x0d"
        callsign        YD0BCX-11
        tx-ok           true
        telem-to-is     false
</interface>

<beacon>
        beaconmode      radio
        cycle-size      10m
        beacon symbol "B#" $myloc  comment "VHF <=> LoRa Bridge (LoRa Side)" srccall YD0BCX-11 interface YD0BCX-11 via WIDE1-1
        beacon symbol "B#" $myloc  comment "VHF <=> LoRa bridge (LoRa Side)" srccall YD0BCX-11 interface YD0BCX-11
</beacon>

# Second beacon block goes out on VHF
<beacon>
        beaconmode      radio
        cycle-size      10m
        beacon symbol "B#" $myloc comment "VHF <=> LoRa Bridge (VHF Side)" srccall YD0BCX-4 interface YD0BCX-4 via WIDE1-1
        beacon symbol "B#" $myloc comment "VHF <=> LoRa bridge (VHF Side)" srccall YD0BCX-4 interface YD0BCX-4
</beacon>


#Here we define the digipeaters with their sources and transmitters
#LoRa to VHF
<digipeater>
        transmitter     YD0BCX-4
        srcratelimit    3 6
        <source>
                source          YD0BCX-11
                relay-type      directonly
                regex-filter data ^\}
                filter          -t/3cinostuw
                filter t/pmq
                <trace>
                        keys    WIDE
                </trace>
        </source>
</digipeater>

#VHF to LoRa
<digipeater>
        transmitter     YD0BCX-11
        srcratelimit    3 6
        <source>
                source          YD0BCX-4
                relay-type      directonly
                regex-filter data ^\}
                filter -t/3cinostuw
                filter t/pmq
                <trace>
                        keys    WIDE
                </trace>
        </source>
</digipeater>

i’m using latest aprx software, and compiled it.
aprx

don’t forget to pay attentions about do and don’t that Geoffrey Merck explain.

hopes it gave amateur’s friends some clue

73