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Summary of Contents for MFJ Telepatch II
- Page 1 Delux Hybrid Phone Patch Model MFJ-624DM 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 2006 MFJ ENTERPRISES, INC. VERSION 0E...
- Page 2 Installation THE MFJ-624DM can me configured for use with a radio having either a 8-pin round connector or an 8- pin modular connector. The MFJ-624DM is designed to remain permanently installed between a transceiver, a telephone line with a modular connector, and a telephone receivers handset. The telephone and the radio will operate as if the phone patch were not in the circuit when the Patch IN/BYPASS switch is in the BYPASS (out) position.
- Page 3 MFJ-5397MX, to connect the mic output jack on the MFJ-624DM and the mic input jack on the radio. If your radio has an 8-pin round connector a cable such as the MFJ-5398 should be used.
- Page 4 Set the NULL switch to the NORMAL position. 2. Receiver Gain a. Adjust the RECEIVER GAIN control on the Telepatch II until the audio level into the telephone sounds about normal according to the third party to whom you placed the call.
- Page 5 The VU meter is used to calibrate the amplitude of the signal you are putting into the phone line. The MFJ-624DM meter is calibrated to –10 dBm. This means that if the meter reads 100% (zero VU), it is actually –10dBm. The VU meter reads the level of the telephone line. Factory adjustment was done according to ta 600 ohm standard signal (0 dBm).
- Page 6 Schematic...
- Page 7 Appendix IC-703 JMP 4 IC-706 Thru Pass JMP 3 IC-706MKII Icom Mic Audio IC-706MKIIG JMP 2 IC-7000 Mic Gnd 8 Pin Modular Microphone Connector JMP 1 JMP 4 IC-718 Thru Pass IC-725 JMP 3 IC-746 Icom Mic Audio IC-756 JMP 2 8 Pin Round Microphone Connector Mic Gnd JMP 1...
- Page 8 MFJ Enterprises, Inc. warrants to the original owner of this product, if manufactured by MFJ Enterprises, Inc. and purchased from an authorized dealer or directly from MFJ Enterprises, Inc. to be free from defects in material and workmanship for a period of 12 months from date of purchase provided the following terms of this warranty are satisfied.
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