Yaesu DR-2X repeater on 145.410 operating with
call sign WC4R.
Dual mode FM and C4FM repeater.
Full time link to the large NC-VA Fusion
network.
Yaesu Wires-X
Room 68425
YSF Reflector
80822
DMR
BrandMeister TG 311095
P25
Talkgroup/Reflector 822
AllStar Link
504851
User modes:
Analog: FM in gives FM out but not linked.
Local analog usage only. Use CTCSS 100.0Hz.
Digital: C4FM
in gives C4FM out AND links you to the NC-VA network
automatically.
The NC VA Fusion Net
Meets each
Saturday Night at 19:30 all licensed operators are welcome to join
us.
Yaesu System
Fusion (C4FM) is by far the most popular digital voice mode in
this region (Richmond to Virginia Beach).
DMR has 9,
D-Star has 9, and C4FM has 19 repeaters. C4FM is the only mode
that allows for simultaneous voice and data.
FOR SALE: Motorola MTR2000 (100 watts) with
MMDVM board. Any digital or analog mode.
How
do the different digital voice protocols compare?
Modulation
& bit rate (the real driver)
-
P25
Phase 1 (C4FM, ~9.6 kbps total)
Lower effective voice rate → more robust error correction → survives
weaker signals better
-
NXDN
(6.25 kHz, very low bit rate ~4.8 kbps)
Very efficient spectrum use → good sensitivity, often close to P25
-
DMR
(2-slot TDMA, 12.5 kHz)
Slightly higher complexity → similar but sometimes a bit less
forgiving at the fringe
-
C4FM
(Yaesu Fusion)
Two modes:
-
DN
(digital voice + data) → slightly less robust
-
VW
(voice wide) → better audio, worse fringe performance
-
D-Star
(~4.8 kbps voice)
Good efficiency, but weaker forward error correction → tends to “fall
off” sooner
- 27 MAR 2026