price%marlin@nosc.ARPA (James N. Price) (11/12/85)
------- I have a TS820S which has bad intermod. problems in the rcvr on 160 from local broadcast stations. I'm planning to build a Bill Orr BC band filter but my real problem is that I need a separate antenna jack for a receive antenna with the filter. It looks like the transverter jack should work but I haven't been able to get the proper combo. of connectors and pin shorts to get both the transmitter and receiver to work in that mode. Anyone out there worked this problem successfully? Other thoughts on how to get the TS820 receiver to work better on 160? Tnx--Jim, K6ZH, PRICE@NOSC.ARPA -------
YOUNG@MARLBORO.DEC.COM (11/13/85)
I used to have a TS-820, and used the transverter plug to do what you want. There is a switch on the back of the radio which must be set in the transverter position. This switch opens the receive line so you can patch your filter or external antenna to it. I had two pieces of RG-174 coming out of my transverter plug, and had a box which would connect them for normal operation or connect the beverage to the receiver input. I also used to connect a second receiver to the transmit antenna through the box, and also an external attenuator and a preamp. The transverter switch on the TS-820 also opens the screen line to the final amplifier tubes. You have to put a jumper in the plug which reconnects the screens. I don't remember the pinout for the plug, but knowing what it is supposed to do you should be able to figure it out from the schematic. I think the TS-520S also had the same plug and pinout. If you can't get it to work, I will look for the plug, and if I still have it I will let you know how it is wired. Paul Young, K1XM --------