I have found that connecting my new Dunestar model 600 to my FT1000MP or to my Cubic Astro 102-BXA, on an Heathkit Cantenna Dummy load, there are rf loss that seem to me too high. Examples (measureme
I have two Dunestar 600's, and they both show about 80 watts out with 100 watts in. The amplifier draws noticeably less plate current with the filters in line. I know it's less than -1 dB, but every
I find about 10% loss--some bands a bit less. I understand one direction is sometimes less than the other, but have not tried to switch cables around. They are VERY effective, but there is this loss.
Yep, this is about what I see with mine too. I can see it being an issue using an amplifier like a pair of 3-500Zs where 100w out is required to reach (or not) 1500w out. But most common day amplifie
If the filter has 100W in and only 80 watts out then it is acting as a good swamping resistor. These were common a few years ago with AB1 amps. The problem is that the filter is probably getting hot