FC-301/D Mini Data Transceiver

For systems that must be small and lightweight, and where RF output power requirements are low to moderate, a "mini" radio transceiver can often be used instead of a full-blown Amateur Radio transceiver. Such mini transceivers are usually designed for use in a telemetry or telecontrol system, for example to periodically send out measurement data, or control/status commands to a remote site.

One of such transceivers is the FC-301/D, manufactured by Friendcom Ltd in Shenzhen, China. We have been using this radio for a variety of projects, some being analog (audio) based, and some being digital with the use of modem boards.  The transceiver is currently available for the 2m (140-170MHz) and 70cm (400-470MHz) bands, and a 23cm (1240-1300MHz) version is possible, depending on requests from buyers.

By design, this transceiver can be used for both regular analog audio projects (it has a built-in MIC preamp circuit, as well as an LF amp for a small speaker), as well as most digital projects, by also providing access to the discriminator- and modulator audio lines, which is needed by most high-speed data applications. The selection between these two modes ("audio" and "data") is done with a jumper, inside the unit.

The firmware shipped in the radio can be configured for up to 16 channels, each with separate RX and TX frequencies. The actual channel used can be selected through a software command, or by setting the "channel select" DIP switch on the inside of the unit.

 

 

Some general info on the units is below:

Technical Specifications:  
Certifications: Complies with CE EN300086, FCC Parts22,74,90,210
   
Carrier frequency: VHF/UHF
Frequency range: 136-174 / 400-470 MHz
Modulation method: Direct FM
Channel spacing: 25kHz /12.5kHz
Step range: 5 kHz, 6.25 kHz, 10 kHz, 12.5 kHz, 25 kHz
RF output power: 1-5W programmable
Channels: 16
Frequency stability: ±2.5ppm
Antenna Output Impedance: 50Ω
Antenna Socket: BNC
DC Power Supply: +9 ~+15V, 13.8V typical
DC Power Usgae: < 0.8A @ 1W, < 1.5A @ 5W
Dimensions: 117(L) x 62(W) x 30(H) mm
Weight: 150g

This little radio is a perfect match with the GMSK modulation used by D-STAR systems, and several people have already built setups consisting of a PC running the HotSpot software, a Node Adapter board, and an FC-301/D radio for use as a local gateway to the D-STAR network.

You can download the User Manual, Programming Software from our Software page The Windows driver for the USB-based Programming Cable can also be found there!

If you have pictures of your setup, and wish to share them, let us know !

DUTCH*Star is the point-of-sale for this part of the world, and have been given all rights by the people at Friendcom in China. You can order these radios (and some accesories) through our Web Shop.

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