Multimode on RadioSC

Nets

Thu, 14 May 2026 22:40:49 -0400

Digital Dog Net

The Digital Dog Net occurs every Monday at 5pm Eastern. Logging is va Ham.Live. This is a directed Net. We rotate about six Net Contollers. Join us, it’s a fun time to converse and try out your digital modes!

Propagation Report & Lunch Net

Propagation Report & Lunch Net Checkin: Every Wednesday at 9:30 AM Eastern (no logging).

Join us for a quick checkin!

Connecting to RadioSC

Thu, 14 May 2026 09:40:12 -0400

There are multiple ways to connect to the RadioSC system including D-STAR and FM Repeaters, Echolink, Allstar, and many of the Amateur Radio digital modes including Yaesu System Fusion, D-STAR, DMR, and M17 via hotspots and other Internet-based means.

Read the Quadnet post and join us on our Discord Server to learn more.

Connect via Repeaters

KR4CHS, Awendaw, SC D-STAR 145.120 (-)
W4IAR, Hilton Head Island/Bluffton Analog Repeater 442.675 (+), 100 Hz (linked for Nets)
W4GL, Sumter, SC 444.150+ PL123.0 D-Star/FM, (linked for Nets)

Connect with digital modes:

D-STAR DCS517A or XRF517A
M17 URF517A
DMR XLX517A or Quadnet TG 517 or TGIF TG 517
YSF31001 - US - C4FM - QUADNT - YCS310, DG-ID 81 or FCS31081 - nn or YSF51700

Connect with Allstar and Echolink

Allstar 273771
Echolink N4HEK-R

For more detail on connecting see Quadnet Digital Services and RadioSC.

Quadnet Digital Services and RadioSC

Thu, 14 May 2026 08:29:47 -0400

Quadnet

Quadnet sevices are an indispensable part of RadioSC. Our DMR Talk Group (TG) 517 and two of the methods that connect via Yaseu System Fusion reside on Quadnet servers. Quadnet facilitates our multimode system by maintaining a full-time link to our URF517 Reflector, a link to the TGIF 517 Talkgroup, and coordination with the other DMR Unificaton Project Networks so that our RadioSC network is available on servers worldwide.

The connections shown below expand the detail than the simple list of connections in the Connecting to RadioSC post but there are not intended to be exhaustive.

Multimode Operating Practice

Thu, 07 May 2026 22:04:18 -0400

5 Step Operating Practice

Pausing between transmissions is “key” to reliable multimode digital voice communications on the multimode systems, particularly systems with repeaters like RadioSC¹

QSOs that adhere to the following practice will make QSOs better for all operators and enhance communication.

After the transmitting Operator completes a transmission, pause 2 seconds.
After the 2 second pause, PTT and continue pressing PTT for 2 seconds before speaking. This allows the other digital modes and the transcoder to “engage.”
After completing your transmission say “over” or “back to you,” and if 3 or more operators in the QSO, the callsign to which you are passing the QSO in order to mitigate doubling.
Before unkeying continue pressing the PTT for an additonal 2 seconds to allow your transmission and the transcoding process to complete on the other digital modes.
Release PTT.

Other helpful operating hints

Be aware of what your display is telling you. If an operator tries to break in a name or call might be seen momentarily on your display even if no voice is heard.

About

Thu, 07 May 2026 11:20:55 -0400

RadioSC Composition

Key Features

Hardware Transcoding: Our system uses dedicated hardware (DVMEGA DVStick 30) to ensure high-quality audio when moving between D-STAR (AMBE) and other modes.
Universal Reflector (URF): Based on the modern urfd architecture, allowing A-Z module flexibility, up to 26 channels per reflector.
Analog-Digital Bridge: Direct integration with Allstar and Echolink ensures that legacy analog repeaters and operators with their own Allstar devices can participate in the digital conversation.