How to add a 4th TX output to 6600?

Rick N0VT · January 2020

I have a Flex 6600. I have an HF amplifier connected to the TX1 output and an antenna switch connected to TX2. I want to add two transverters to the mix. Since the 6600 only has 3 TX outputs, how do I juggle my connections? This surely can't be as simple as a "Y" adapter on one of the TX outputs, can it?

Terry K7NY · January 2020

Pin 11 on accessory is accessory tx. check it to see if it will work for u.
Terry K7NY

Rick N0VT · January 2020

Looks promising, Thanks!

Ha Gei · January 2020

Otherwise you could use a powerdivider for TX and use aux rx + xverter rx for both transverters. Then finally you can switch the PTT for the transverters with a switch ( or banddata ) to decide which xverter sends . I did something similar long ago using 28-29 for 2 meter and 29-30 for a 70cm xverter on ONE exciter.

Alan · January 2020

I have the exact same situation.

I solved it by using a "Y":

https://www.amazon.com/gp/product/B01D5H8MKY/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

Then I configured a Flex USB BIT cable to pick up a relay:

https://www.amazon.com/gp/product/B00LW2GM84/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

The relay adds 12 VDC power to one of two PTT Opto isolated solid-state relays, one for each of the two transveters:

https://www.dxengineering.com/parts/svp-sv-kr

The Flex USB Bit cable is configured to energize the relay based on the active TX slice's band selected.

Alan
WA9WUD

Rick N0VT · January 2020

I took the K. I. S. S. route, using Terry's suggestion. I had an old 15 pin monitor cable in the junk box that I cut one end off of and replaced with a Rca male plug wired to pin 11. Works great!

Geoff AB6BT · January 2020

Good choice!

How to add a 4th TX output to 6600?

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