This space reserved for information about DMR
The SERC DMR Repeater on 444.700 MHz is located at our Laurel site along with the 145.130 MHz UHF FM repeater.
Hoping someone will step up and volunteer to write a Newbie’s Primer and Techie Guide to DMR radio at SERC.
Here’s some info:
dPMR is NOT DMR
dPMR is not compatible with DMR. To help us newbies this is just a quick explanation of the difference between dPMR and DMR.
Note: SERC’s new 444.700 MHz repeater is DMR and will NOT work with a dPMR transceiver.
- dPMR: The digital Private Radio standard relies on FDMA (Frequency Division) techniques, which relies on the old analogue way of physically dividing an existing channel.
- DMR: The Digital Mobile Radio standard relies on TDMA (Time Division) techniques, which relies on creating two 2 “virtual” channels within a single existing channel by transmitting information in “time slots”
There is an easy to follow explanation of both modes here
Reasonable DMR Radio Source: (thanks Mike W0MJL )
MD 380 Codeplugs
Scroll down for downloadable codeplugs
|WB8FXJ’s Code Plug Contents|
|DIGITAL SIMPLEX FREQUNCIES
Dayton Simplex. ( 446.07500 )
The other slots for future expansion
The following downloads are provided ‘as-is’. They have not been tested by your Elmer.
for making this possible