¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. Ic7000
  2. Messages
Single Messages Topics Expanded Polls

Re: IC700 and THP HL550FX

 

The ALC cable would have its center pin connected to ACC-6 (blue) and shield to ACC-2 (red).

The STBY cable whould have its center pin connnected to ACC-3 (orange) and shield to ACC-2 (red which is ground) [NOT to gray which is 13.8 VDC].

The HL550FX manual and spec sheet does not speciify the current draw of its T/R relay. But they do mention they are minature high speed Panasonic relays, which are all under 100 ma. (>40 ma. typical), well under the 7K's spec of 200 ma.

Steve, W3AHL

--- In ic7000@..., Richard Wiklund <richard@...> wrote:

I'd like to use my THP 550 watt amp with my Icom 7000. The diagram on page 21 of the Icom 7000 manual is not very clear. The amp has the ALC and STBY inputs, as shown in the diagram. And I have the13 wire cable supplied with the IC7000. Connecting the blue wire to the ALC is clear. The THP manual says, ""Connect the control cable from the ACC terminal (or SEND, TX GND etc.) of the transceiver. The center pin is to be shorted to ground through the relay circuit of the transceiver." Does the IC7000 have an internal relay? Do I connect the orange HSEND cable to the center pin of an RCA cable and the gray to the shield? Appreciate any help. Dick, K1MGH
Join [email protected] to automatically receive all group messages.