Here are diagrams and photos of a FlexWire controlled three transverter selector built into a recycled DB25 serial switch box using a K3TUF FlexWire interface and a homebrew relay logic board. I also incorporated a DEMI 10 MHz frequency reference distribution amplifier for weak signal digital work. https://picasaweb.google.com/114032640816757126398/FlexWireTransverterSelector
73, Carol KP4MD/6 > -----Original Message----- > From: FlexRadio [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of > Bill > Tynan > Sent: Tuesday, October 15, 2013 4:32 PM > To: flexradio@flex-radio.biz > Subject: [Flexradio] Interfacing VHF/UHF and Microwave Transverters to Flex > 5000 > > HELP! > > I want to be able to interface 7 transverters to my Flex 5K. > > I have the following transverters: > 1. DEMI 222 MHz 28 MHz input (in shack) > 2. DEMI 1296 MHz 28 MHz Input (in shack) 3. Old Microwave Modules 144 MHz > 28 MHz input (in shack) > 4 DEMI 902 MHz 144 MHz input (in shack) > 5 DEMI 2304 MHz 144 MHz Input (on tower) > 6 DEMI 3456 MHz 144 MHz input (on tower) > 7 DEMI 10 GHz 144 MHz Input (to be on tower in the future) > > I have come up with a switching scheme which utilizes a 6 Position 3 Deck > switch. > > Position 1 Deck 1 goes to the coil of a coax relay which connects the 5K 28 > MHz transverter output to the 222 MHz transverter. Deck 2 is Open. Deck 3 > connects the Yellow PTT line on the Flex 5K to the 222 MHz PTT input. The > Red and White PTT lines are in use to key 6 and 2 meter amps.) > > Position 2 Deck 1 goes to a the coil of a coax relay which connects the 5K > 28 MHz transverter output to the 1296 MHz transverter. Deck 2 is Open. Deck > 3 connects the Yellow PTT line on the Flex 5K to the PTT input on the 1296 > MHz transverter. > > Positions 3, 4, 5, and 6 of Deck 1 go to the coil of a coax relay which > connects the 5K 28 MHz transverter output to the Microwave Modules 144 MHz > transverter. Deck 2 goes to a coax relay which connects the output of the > 144 Microwave Module transverter to the 902 MHz transverter. Deck 3 > connects > the Yellow PTT line on the Flex 5K to the PTT input on the Microwave > Modules > 144 MHz MHz transverter. > > Position 4 (Deck 1 See Above) Deck 2 goes to a coax relay which connects > the > output of the 144 Microwave Module transverter to the 2304 MHz transverter. > Deck 3 connects the Yellow PTT line on the Flex 5K to the PTT input on the > Microwave Modules 144 MHz MHz transverter. > > Position 5 (Deck 1 See Above) Deck 2 goes to a coax relay which connects > the output of the 144 Microwave Module transverter to the 3456 MHz > transverter. Deck 3 connects the Yellow PTT line on the Flex 5K to the PTT > input on the Microwave Modules 144 MHz MHz transverter. > > Position 6 (Deck 1 See Above) Deck 2 goes to a coax relay which connects > the output of the 144 Microwave Module transverter to the 10 GHz > transverter. Deck 3 connects the Yellow PTT line on the Flex 5K to the PTT > input on the Microwave Modules 144 MHz MHz transverter. > > Note: The 902, 2304 and 3456 MHz transverters are RF switched. Haven't > thought about the 10 GHz unit yet. > > Unless I have forgotten something, the above should work. It will require > moving the switch every time I want to change bands. The switch can, of > course be mounted at the operating position. All of the transverters will > be > in another room. > > But, it would be nice if I could delete the switch and wonder if there is > some signal I can get out of the Flex 5K that I could use to automatically > do the job of switching the various relay coils. I had hoped that the > Flexwire connector would be of some help, it does not appear to be. Am I > missing something? > > Any help and/or suggestions would be most welcome. > > 73, > > Bill Tynan, W3XO > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
