2021-01-09, 22:03:03
(2021-01-09, 19:46:59)Ve3dgy Wrote: Rob, the tuner has balanced line terminals and I think a 1:4 balance internally
1:4 Balun.
I'm not sure what else to say. The balanced line input on my PalStar AT2K tuner was an S0-239 so I had to supply my own balun. I first tried a direct connection and then tried a 4:1 BalunsDesign. In the end I found a 1:1 balun worked the best. I also played around with the length of my ladder line and ended up taking out 7'. My PalStar tuner could never tune down close to 1:1 on most frequencies. I was quite disappointed for such a good quality tuner and I also had a lot of noise.
I then tried my Ten Tec 238B tuner that had terminals for wires. This tuner was amazing and I could tune tune down to 1:0 or very close to 1:0 on most frequencies. You were right about being able to hear - it was amazing. I tried talking to Dave G0EVY in England with it while running barefoot and he gave me a 44. It worked well for nets along the eastern part of the States.
Just to be sure, say you want to TX on 3.783 MHz, do your put your rig into CW mode, turn the power down, key up and then physically tune the antenna first before going back to LSB and turning the power up?
73 Rob VE3RWY