Advertisement
Quick Links
USB Radio Interface
Model MFJ-1204
INSTRUCTION MANUAL
CAUTION: Read All Instructions Before Operating Equipment
MFJ ENTERPRISES, INC.
300 Industrial Park Road
Starkville, MS 39759 USA
Tel: 662-323-5869 Fax: 662-323-6551
COPYRIGHT
2017 MF J ENT ERPRISES, INC.
VERSION 2A
Advertisement
Subscribe to Our Youtube Channel
Related Manuals for MFJ MFJ-1204
Summary of Contents for MFJ MFJ-1204
- Page 1 USB Radio Interface Model MFJ-1204 INSTRUCTION MANUAL CAUTION: Read All Instructions Before Operating Equipment MFJ ENTERPRISES, INC. 300 Industrial Park Road Starkville, MS 39759 USA Tel: 662-323-5869 Fax: 662-323-6551 COPYRIGHT 2017 MF J ENT ERPRISES, INC. VERSION 2A...
- Page 2 User Manual Introduction: The MFJ-1204 puts you in touch with Ham Radio's digital revolution without complex wiring or setup procedures. In fact, the MFJ-1204 is easier to set up and use than any other USB-interface on the market. All you need is an existing radio, a computer, some free downloadable software, and your MFJ-1204.
- Page 3 MFJ-5700UT installed If you own an Icom 746-Pro, you would purchase the MFJ-1204 model with a P8 suffix. This package provides everything you need to start operating right away. Changing Radios: Suppose, at some future time, you sell your IC-746-Pro and acquire a new Icom-7300.
- Page 4 Selecting the USB Soundcard: Most communication programs will require you to select a sound card as part of their setup procedure. Select USB Sound. This choice directs your computer to access the sound card built into the MFJ-1204 rather than the resident card installed in your computer.
- Page 5 [ ] Never use your radio's Power Output control to set a power level. Turn it all the way up and use the MFJ-1204 Transmit Audio control to set the output level. Most radios use ALC voltage to turn down power output and it degrades transmitter linearity.
- Page 6 Rerouting An Existing Jumper Setup: Find the model number of your new radio by checking the listings on the diagrams below. The new jumper settings, the required MFJ interface-cable number, and your radio's connector type are shown. MFJ-5745J...
- Page 7 MFJ-1204 USB Radio Interface User Manual MFJ-5713DI MFJ-5705D MFJ-5711J 13 Pin DIN Universal RJ-11 5-Pin DIN RJ-11 Wire Color 8 Brown 7 White/Brown 6 Green 5 White/Blue 4 Blue 3 White/Green 2 Orange SPKR SPKR 1 White/Orange SPKR Icom 706, 718* 7000*, 7100*...
- Page 8 TS-440 or 690, a diode module (supplied with the DK cable) connects from PTT to pins 3 and 4 (see diagram E2, MFJ-5713DK2). If you have a TS-940, move the PTT jumper from pin 3 to pin 4 per (see diagram E3, MFJ-5713DK3).
- Page 9 MIC BIAS is turned OFF . Also, set MIC BTN to either PTT or PTT UP-DN . Finally, cancel any speech processing and eq emphasis. [ ] RJ-45 Mic Connectors: Note that Icom, RadioShack, and MFJ follow telcom industry pin numbering standards -- while Kenwood, Yaesu, and some other...
-
Page 10: Technical Assistance
MFJ Technical Service at 662-323-0549 or the MFJ Factory at 662-323-5869 . You will be best helped if you have your unit, manual and all information on your station handy so you can answer any questions the technicians may ask. -
Page 11: Limited 12-Month Warranty
PC board product is returned. Wired and tested PC boards installed in the owner's cabinet or connected to switches, jacks, or cables, etc. sent to MFJ Enterprises, Inc. will be returned at the owner's expense unrepaired. - Page 12 MFJ ENTERPRISES, INC. MFJ-1204 Manual 300 Industrial Park Road Version 2A Starkville, MS 39759 Printed In U.S.A.
Need help?
Do you have a question about the MFJ-1204 and is the answer not in the manual?
Questions and answers