C4Fm-Fusion; P25; System Requirements - DV Development Group DV4mini User Manual

which can be selected in the DV4mini menu.

C4FM-Fusion:

C4FM-FUsion is a system developed by YAESU. It is based like DMR on
4FSK, and transmits also 4 frequencies with a total data rate of 9600
bits/s. It also uses the same AMBE+ Codec as DMR, but needs only
3600 bits/s. The extra bits are used in D4FM-Fusion in a different way.
They can be utilized for data transfer (e.g. GPS) but also for additional
error correction to make the speech more robust during interference.
There is also a mode for high speech quality which uses all bits for
speech only.
C4FM -Fusion reflectors are named FCS001 etc. All DV4minis
connected to a reflector can hear each other. It is very easy to to
connect a C4FMFusion repeater to the FCS reflector system.
Just put a Raspberry computer with a DV4mini next to the repeater
and enter the reverse RX/TX frequencies. Done.

P25:

In Germany and increasingly in the USA Motorola repeaters are in use
that utilize this mode. Because of the similarity with C4FM we
included this mode in the DV4mini. There is also a reflector for it in
"reflector.net"

System requirements:

These components are a prerequisite:
1. DV4mini USB stick
2. PC Software: DV4mini Control Panel
3. A DV capable radio (D-Star, DMR, C4FM, P25).
4. A PC with Windows XP, 7, 8.1, 10; Linux on a PC or an ARM
computer like a Raspberry, BananaPi or Odroid.
5. Internet access
The DV4mini will be connected thru the USB interface with a PC or a
single board computer and the required software will be installed.
After starting and setting up the software one now has a Hotspot for
the 70 cm band and can use it with a D-STAR or DMR transceiver.
- 5 -