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DRA     DRA FAQ     RA     RL     Audio Filters     Crystal Heater     Serial to TTL Converter Multiplexers     Tone & Noise Squelch     DTMF Controller     Digital Audio Delay     Static Buster Preamplifiers     Test Equipments     Third Party Applications and Equipments

Digital USB Sound Cards, Mixers, Accessories and more
For Winlink, VARA, SoundModem, fldigi & DigiPi™
DRA Series
Low-cost high-quality digital data optimized USB sound cards and mixers.
Works with Winlink, VARA FM (all speeds) & VARA HF (all speeds)
SoundModem & HS SoundModem (packet - all speeds), ARDOP, Winmor, Pactor, FLDIGI, and more!
MMSSTV*, FT4* & FT8* (*currently requires a VOX capable DRA).
DigiPi™ requires a DRA-Pi-Zero, DigiPi Software and other hardware.

DRA Support
DRA FAQ   Support for DRA Hardware and Digital Applications.

Analog USB Radio Adapter Interfaces, Accessories and more
For AllStar Link and EchoLink
RA Series  More information, ordering and support for our AllStar Link compatible interfaces and accessories.
Original RA Series - Low-cost high-quality USB radio adapter interfaces that are AllStar Link and EchoLink compatible.
"RA-M" Series interfaces in a metal case.

Simplistic and small AllStar Link Interfaces
RL-20 & RL-20M   Inexpensive Radio-Less and Radio Adapter Interfaces with COS indication.
RL-20 - Add a microphone and speaker to make a non RF based appliance to talk on the AllStar Link system.
RL-20M - Small radio interface in a metal case.

Audio Filters and Multi-Function Muteboard (filter & audio gate)
FL-10 5-Pole Low-Pass Splatter/Ultrasonic Audio Filter.
PLF-15 5-Pole CTCSS Reject Audio Filter.
Brandon Muteboard 5-Pole CTCSS Reject Audio Filter, De-emphasis, and Mute based on the MICOR Muteboard.

Crystal Heater
CH-25 Crystal Heater - an alternative to temperature compensation in Two-Way Radio applications.

Communications Equipment
Ultimate FTDI - Serial (USB) to TTL Converter
Highly versitile FTDI-FT232RL based USB to TTL converter/adapter for radio programming and much more.

DMR + Analog Multiplexer Interface
MUX-25 Analog (AllStar Link) & Digital Voice (DSTAR, DMR, DV) Multiplexer.

Tone Squelch (CTCSS) & Noise Squelch Products
Tone and Noise Squelch Products - Feature Comparison and Product Selection
Features and differences of the squelch products, and choose a product that best suits your needs.

WJ9J DTMF (Touch Tone®) Decoder / Controller
DTMF Repeater and Remote Base Controller with ICOM CI-V automation
Available as a kit or completely assembled and tested. (Offsite Link and Purchase)

Audio Delay Line
SCOM® DADM
Designed for older SCOM® and ICS repeater controllers, but also works as a stand-alone squelch tail eliminator.

Passive Antenna Noise Reduction
Static Buster  Antenna Static Dissipation and Corona Discharge Device.

RF Preamplifiers
Learn about the possible challenges of adding a preamp to a repeater, then choose from four different series - board only, enclosed metal case, wide-band metal case, and filtered metal case.

Test Equipment
RLB1500 Commercial / Professional Return Loss Bridge and accessories.
The RLB1500 is built to order, and we're currently accepting orders.

RLB1300 Commercial / Professional Return Loss Bridge custom made for the commercial and military avation industry.
The RLB1300 is made exclusively for Tel-Instruments Corporation for their SDR-Omni Test Set.

Bird Wattmeter Signal Sampler  An inexpensive RF sampler for Bird Model 43 Wattmeters.
This product can be customized for specific uses like FM Broadcast band monitoring and FCC compliance teasting where absolute flatness and high directivity is a requirement.
Inquire to learn more.

FM Deviation Meter  An inexpensive and easy to use solution to the ever complicated and expensive measurement of frequncy modulation (deviation).
The FMDM-150M is now available in limited quantity - but we'll build as many as demand requires. New!

Engineering and Solutions
Electronic circuit engineering.
Custom PC board design, layout, and manufacturing solutions.

Third Party Compatible Projects and Applications
MABEL is a AllStarLink hardware interface and software using the RA-35/40/42 and SC-50 which allows analog control of the Yaesu DR-1X repeater. (Offsite Link)
Direwolf is a digital data software package that works with the DRA Series, including CM119A GPIO support for PTT, operating as an AX.25 packet modem/TNC and APRS encoder/decoder. (Offsite Link)
VARA FM and HF are Windows digital data programs that work with the DRA Series radio adapters, including support for hardware PTT. (Offsite Link)
UZ7HO SoundModem and HS (high-speed) SoundModem are Windows digital packet programs that work with the DRA Series radio adapters. (Offsite Link)
Fldigi is a digital data software package that works with the DRA Series, including CM119A GPIO support for PTT. It has multiple operating modes. (Offsite Link)
DigiPi™ is a digital data software package that works with the DRA-Pi-Zero. It has multiple operating modes. (Offsite Link)

Digital Applications and Hardware Support Information
Go Here to visit our Digital Frequently Asked Questions and Applications Support page.
 
 

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