How to connect more than 2 transverters to a Flex-6600?

John Swink

I have acquired three DEMI/Q5 transverters for 144, 222 & 432 MHz to use with my Flex-6600.  I plan on connecting the 144 MHz transverter to the XVTR-A port and TX2.  The other two transverters will connect to the XVTR-B port and TX3 by plugging/unplugging them as needed.  To avoid manually plugging/unplugging them, I have been looking for a switch with BNC and RCA connectors that will switch both the IF and TX lines.  The only switches I have been able to locate with BNC connectors are 75 ohm units used for video applications and none of them have a separate pole for switching the TX line.  Does anyone know if someone makes this type of switch?  Since I plan on adding transverters for 900 & 1296 MHz in the future, I would like to find a switch with at least four positions.  My transverters are common IF & RF configuration, so only one IF port will be required per band.

John, N8WNA

Mack

philip.theis

Common IF is the right way to go. I route the PTT through the IF cable via a bias tee, which is very simple to deploy. It makes switching very easy. I use a USB cable with the VHF BCD choice and control a 1 X 10 matrix switch. You can use a smaller switch, but they are readily available on ebay for reasonable prices. Let me know if you need a relay, I might just have one available. 

philip.theis

Brian Morgan VK7RR

There is another way which technically is in my view better than what has been suggested although the use of a BCD switch does give you switching options in a simple platform. W6PQL, Jim has an Automatic Transverter Interface in kit form, which does everything you could ever want. Jim's projects are always well thought out and designed and easy to assemble.

John Swink

Bob N7ZO