N6JETUnited StatesCalifornia

N6JET Logo N6JET Reflectors and Gateways logo: URF, XLX, M17, VEX and C4FM, with a background of binary 0s and 1s Silicon Valley Multimode via VEX logo

Here you'll find guides/notes to amateur digital voice modes (D-STAR, DMR, C4FM, M17, P25, and NXDN) I have gathered over the years. Also found here are notes from my AM and shortwave listening nights years ago, plus some new stuff I dug up on things I found interesting. Everything on n6jet.com is released free of copyright. You may use, copy, and distribute anything here for any purpose, commercial or not without permission and without attribution.

About n6jet.com

Contact: chris@n6jet.com

N6JET Multi-Mode Digital Voice Station

N6JET Multi-Mode Digital Voice Reflectors

Silicon Valley Multimode via VEX

Search n6jet.com

Didn't find your answer here?

These pages are my notes, not the final word. If you have a question about VHF/UHF digital voice, I'd like to hear it. I'll dig into it and write back with what I find. No promises, but I'll do my best.

Ask me a question
Silicon Valley Multimode via VEX logo

Silicon Valley Multimode via VEX NEW

One room for every digital voice mode: DMR, YSF, NXDN, M17, P25 and D-STAR, all hearing each other. Join on TGIF talkgroup 95110, or connect your hotspot straight to VEXJET module A. All six are linked now. VEX is short for Vexillum, the Latin name for a Roman army unit's flag.

How to join

DMR Activity Dashboard

A free Raspberry Pi image that shows, at a glance, which DMR talkgroups are active right now on BrandMeister, TGIF, FreeDMR, ADN, AmComm, Ham United, QuadNet and System X, plus the YSF and NXDN reflectors used by DMR2YSF and DMR2NXDN. Sets up like Pi-Star, and no radio is needed.

Download and setup

Live Last Heard Monitors

A system-wide last heard on a busy DMR network scrolls faster than anyone can read. These six pages fix that in two different ways. The BrandMeister, TGIF and FreeDMR monitors are filtered down to English-speaking talkgroups only, so what is left is traffic you might actually join. The AmComm monitor is not filtered: it merges six of that network's ten dashboards into one timeline, corrects the clock difference between their servers, and shows which peer carried each transmission. The M17 monitor does both: it watches only the M17 reflectors on the English-speaking list and merges their dashboards into one timeline. The P25 monitor does the same for nine English-speaking P25 reflectors. All six update on their own and all six have a Pause button, so you can stop the feed and read.

BrandMeister Last Heard → TGIF Last Heard → AmComm Last Heard → FreeDMR Last Heard → M17 Last Heard → P25 Last Heard →

Radio Manual Quick Reference Guides

Twelve handhelds, each condensed from its own manual into a single searchable web page. What every key does on a short press and on a long press, where the setting actually lives in the menu, which defaults matter, and the traps the manual buried in a footnote. Free to use, and built to print.

Browse the Guides →