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Masters Communications Masters Communications A leader in Analog, Digital, and IP Communications Test Equipment, Communications Systems Solutions 6 Canarsie Place Palm Coast FL 32137 (814) 313-4036 USA
DRA Series Digital Radio Adapter Interface - Masters Communications DRA Series interfaces are radio optimized sound cards used to connect a two-way radio to a computer (or host) for digital data communications with Amateur Radio They are available as a unassembled kit of parts and a circuit board with a pre-installed surface mounted chip
Masters Communications VHF and UHF Preamps Masters Communications P-Series Preamps - Standard Features: These standard features are included in all P-Series Preamp Products Available assembled tested tuned to your frequency, or as a unassembled project kit
RA-DR1X Radio Adapter Interface Board - Masters Communications The RA-DR1X is the result of the modification to the RA-40 shown in Dave's article Unlike Dave's modification, all added parts are on the component side of the PC board, allowing the radio adapter to fit in our optional case
RL-20 Radio Adapter Interface Board - Masters Communications The RL-20 can also be used as a radio adapter in the simplest and most inexpensive form It doesn't have the 555 timer protection circuit that is standard on our RA and DRA products to prevent a stuck PTT It doesn't allow for easy installation of our optional FL-10 filters
Model DRA-50 - Masters Communications Differences between the DRA-36 and DRA-50: The DRA-50 is similar to the DRA-36, but has these additional features: 1 - High audio output capability, for interfacing those hard to drive radios 2 - FL-10 filter capability for when you need to drive the FM modulator directly Parts List:
Construction of the RL-20 USB Radio Adapter Board - Masters Communications Construction of the RL-20 USB Radio Adapter Board Top photo of the RL-20 PC board Click to enlarge Assembly: If you purchased our kit, refer to the parts list and make sure you have all of the components you need to build the kit