The Original "Relay in Cable"
An External "Relay in the Cable" interface fits Icom
by Bob W2ENY
The Icom 746, 746PRO, 756, 756 PRO (all models) internal relay has low contact ratings and becomes problematic in most shack conditions. This cable simply plugs into the multi-pin accessory jack (ACC 1 or 2) on the rear of the radio. Six feet of shielded cable and an RCA/Phono type plug fits to your amplifier T/R relay jack.
Also works with the following - 725, 726, 728, 729, 735, 736, 737, 761, 765, 746 Non-Pro and PRO, 756 Non Pro and Pro (I, II, III), 775, 781, 7600, 7610, 7700, 7800 and 821.
This package is compact and streamline, all components located inside the connector. Unlike other solutions, there is no klunky external box and no need to apply other external power. Although there's a relay inside the DIN connector, it looks like an ordinary cable.
For the technical types, the circuit uses voltages available on two pins of the radio's accessory jack for switching. Contacts are rated for 2 amps DC and 0.6 amps AC, more than sufficient for many amplifiers (Such as Heath SB200-SB220, Collins 30L1-30S1, Henry 2K, Ameritron AL-80, 811, 1200, Dentron GLA-1000, Acom, etc)
Switches any voltage, AC, DC (+) or DC (-)
This
cable actually has a relay and diode built inside the DIN connector - providing
100% electrical isolation between your radio and your amplifier! If you have an ICOM radio listed above and an amplifier, this is what you need before your internal relay fuses closed and you gotta send it back!
Other sellers show a disclaimer about a "continuously keying" problem their buyers experience, this cable has no such design flaw or problem and works with ANY amplifier - whether you are keying a positive or negative going DC voltage or AC relay voltages.
Better deals at w 2 e n y * c o m
Better than 5000 sold over 20 years and Thanks for looking ;)
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