K6ZC: Jay Maynard's D-Star Repeater System

I've become a fan of Icom's D-Star amateur radio communications system. I now own a complete repeater stack, and have all four radio modules on the air. I'm also working with coordinators and the D-Star community to develop frequency coordination standards that take advantage of D-Star's unique capabilities.

My repeater's callsign is K6ZC. Due to the callsign-routed nature of D-Star, I had to obtain a separate club station license for the repeater. This meant that I had to form a club for the purpose; my parliamentary knowledge made that job simple. I couldn't pass up the opportunity to get a callsign so close to my own in the process. There's actually a second club station license in the club's name, and that callsign (W5NP) will be used for other operations that require a station license separate from my own.

Here's the system's band assignments and frequencies:
Band Mode Frequency Offset
A DV 1284.500 MHz -12.0 MHz
A DD 1249.000 MHz Simplex
B DV 443.925 MHz +5.0 MHz
C DV 146.970 MHz -0.6 MHz
The system is a standard Icom D-Star repeater stack, with an ID-RP2C controller and ID-RP2V (1200 MHz DV), ID-RP2D (1200 MHz DD), ID-RP4000V (440 MHz DV), and ID-RP2000V (146 MHz DV) band modules. All of the antennas except the 440 MHz Super Stationmaster are in my attic, which means limited coverage - but there's enough to cover the city of Fairmont, which is no more than 5 miles end to end.

The Super Stationmaster was recently moved to an eave mount on one end of the house. That doubled the range of the 440 MHz module; here's a plot of a recent range test I did. I used an IC-2820 on high power (50 watts) into a Comet SBB1 multiband flexible antenna (rated at 2.15 dBi gain) on the roof of my SUV.

The green dots are places I got into the system. The coverage along I-90 extends from just east of Sherburn (about mile marker 91) to Guckeen (about mile marker 113).

My system is on the D-Star network, and I'm listening whenever I'm in the office. I've got an ID-1 on 1200 MHz, an ID-800H that stays on 440, and an IC-2200A with D-Star module to listen to 2 meters. Give me a call sometime, preferably on 440 (the B port), as the ID-800's the easiest to set up to reply to a call.

See the registration page for information on user registration at this gateway.

The bylaws of the Conmicro Amateur Radio Society may be a suitable starting point for others who want to organize a club for the purposes of obtaining a club station license but don't want a lot of baggage associated with it.

73, Jay, K5ZC

Jay Maynard, jmaynard@conmicro.com
Last modified 7 May 2008