Home Brew - Kansas City Style!
DMR is an another digital mode for hams. DMR is based on the international commercial radio standard. I could try and explain it, but the easiest way is to just have you look at:
"The Amateur's Guide to DMR" by W2XAB
We here at BYRG World Headquarters have been experimenting in taking some of our older analog-only radios and using some behind the scenes "Sm0ke and Mirrors" secret sauce to make a very versatile DMR compatible digital radio repeaters.
The "RLP Special" chassis with a
MCS2000 VRM-650 UHF Transmitter & Receiver decks.
The heart of the repeater is the MMDVM Modem/Arduino DUE and the Raspberry Pi
Controller with the DMR-UTAH Pi image for software.
We feel that this is a better way to go than the standard MMDVM Ubuntu Mate software load.
The neat thing about this is we can also do other digital modes like System Fusion,
D-Star & P25 as well as DMR if we want.
More to come on this VRM-650 DMR project as I get it completed and tested.
In Part #3 we will cover the conversion and hook-up of the MCS-2000 VRM-650 radio deck to use for the RF portion of the DMR repeater project.
This RF deck requires little overall modding and is pretty much a painless way to go without worrying about matching heads and cables that you might find with regular MCS-2000 radio packages.
It just makes for a cleaner conversion and rack mounting.
All for Now - Comments Invited