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We are an amateur radio club based in San Antonio that is engaged in Yaesu System Fusion. (C4FM).
Core Values
- Experiment
- Innovate
- Demonstrate
- Educate
- Collaborate
- Have Fun
Our Mission
To experiment, innovate, demonstrate, educate, collaborate and challenge ourselves in advancing the state of the art of digital radio technologies; applying best practices in collaboration with amateurs and sharing lessons learned throughout the community.
Our Goals
To help others become involved with available digital technologies, understanding the benefits of each technology, and how to setup and use digital radio equipment. We will continuously challenge the status quo and pursue further advancements in Amateur Radio with emphasis on digital modes.
SADRC
Repeater Network
| Wires X | WS5DRC – 443.200 Room 40324 – (Main/Primary – SADRC) |
| N8IQT – 442.750 Room 68724 (Secondary) | |
| W5NZK – 441.8125 Room 43404 (Third backup server) | |
| YSF | US TEXAS SADRC 40324 |
| FCS | FCS 003 Room 46 |
Please note that our old YSF connection, YSF SADRC 84398, was discontinued in mid-May, 2024.
| 146.780 | N. Bexar County – WS5DRC – 281 Corridor – TEMP Off air |
| 443.200 | SW San Antonio – WS5DRC – SW 1604 Loop |
| 442.750 | N. Bexar County – 281 Corridor & Bulverde Rd. |
| 147.160 | N. Bexar County – 281 Corridor |
| 440.275 | S. Blanco County – 281 Corridor |
| 146.820 | Medical Center area (NW San Antonio) – SARO |
| 441.81250 | Live Oak – W5NZK – I-35 |
| 444.025 | Live Oak, TX (near I35 and 1604) K5NKK ***Off Air – In repair |
| 444.900 | Boerne – KARS |
| 444.925 | Sisterdale – KARS |
| 145.200 | Seguin – W5DOC |
| 443.350 | Hondo – MCARC |
| 147.160 | Round Rock – K5UUT (connected to Texas Nexus) |
| 442.150 | Austin – KA5C – University of Texas |
| 441.500 | S. Austin – KN5C |
| 444.250 | Sun City (Georgetown area) W5AMG |
| 441.575 | McDade – NU5DE |
| 442.575 | Corpus Christi – K5ENT |
| 145.270 | Fort Worth (North Richland Hills) – K0BRN |
| 146.880 | Corpus Christ – N5CRP – STARC (South Texas Amateur Radio Club) |
| 147.040 | Kerrville – K7RHT I-10 |
| 444.475 | Kerrville – K7RHT I-10 |
| 440.625 | BruceVille-Eddie/Waco area – DGID 01 Transmit only required – DARN |
| 442.675 | Port Lavaca Calhoun county: W5KTC/R – PLARC |
| 443.800 | Victoria Victoria county: W5DSC/380 – VARC |
| 442.925 | Edna – Jackson County: W5CLR – CRHRC |
| 444.750 | Shiner -Lavaca County: W5CLR – CRHRC |
| 443.875 | Harligen-Cameron County- KD4FJ |
| 147.040 | Wharton-Wharton County – WJ1D – CRHRC |
| 444.550 | Houston – W5BSA – Harris County |
How You Can Help SADRC
San Antonio Digital Radio Club (SADRC) operates multiple C4FM Digital Repeaters in the San Antonio area and other areas within Texas. The club is not a 501C3 and exists primarily through the club members equipment, time, and efforts!
What we provide
We provide a wide area communications network for the benefit of amateur radio operators and the community. We are a civic minded group and our network can be used to assist the community when needed and upon request.
Gift of Money
Your “Gift of Money” helps offset costs incurred by the club which provides the repeater site and equipment.
Plans for 2025
Several other clubs have joined our network in order to enhance the network by providing greater coverage.
We are also working through installing two more Fusion repeaters. We own the repeater equipment including duplexers but currently need your help to purchase new antennas and pay for installation for these sites.
Operating costs include but not limited to:
Equipment
Repeaters, hardline, antenna’s, link radios, computers, power supplies, tower costs and maintenance.
Installation Costs
Site Lease
Liability & Theft Insurance
Electricity for repeater and AC
Static IP’s
Website Cost/Maintenance
SADRC Domain Cost
NOTE: SADRC is not a 501c3 or 501c7, these funds are purely to provide amateur radio services to the community, offset costs, and keep them up and operational.
Although the GoFundMe page is labeled ”Donate”, your “Gift of Money” is legally not a donation. It is just that, a gift to help support our efforts.
GoFundMe link here: SADRC GoFundMe
Wires-X and C4FM working together.
While we are primarily focused on System Fusion, however, we encourage experimenting with other digital protocols such as Wires-X, Winlink, FT8, JS8Call, etc.
Wires-X control using radio
Currently active nodes and rooms can be searched in real time, and viewed on the display of your transceiver. The display list is sorted according to the number of stations currently connected to the room, in other words by popularity. This lets you quickly find other active stations to communicate with.
Smart Access Function
WIRES-X automatically connects to nodes and rooms via the Internet. No more need to verify connection IDs or transmit cumbersome DTMF connection codes.
Information about nodes and rooms is exchanged via C4FM Digital signaling. Thanks to automatic reconnection to the previous contact, all you need to do is press PTT and start talking.
Easily search for new nodes and rooms, and initiate communication promptly when you find an ID that captures your interest.