On 10/30/2018 9:38 AM, WK1W-Ivan Shapiro wrote:
Many PL259s have not been problematic for me. Good I/O
I recommend W6LGs youtube video:
https://www.youtube.com/watch?v=5AgFum5K7bw
I don't have time to watch the video, but I've done my own measurements
and found that loss is negligible to at least 200 MHz -- IF you're using
good connectors. I measured 1400 ft of Commscope similar to (but better
than) LMR400 in 100 ft lengths that I had made up for a DXpedition. I
had installed soldered Amphenol 83-1SP connectors and spliced them for
the measurement with Amphenol barrels. Using an HP generator and HP
spectrum analyzer, the loss I measured up to 200 MHz was less than the
spec for the coax itself.
My definition of a good connector is one that either says Amphenol or
has a MIL part number stamped into it. If I lived on another continent,
I might include other manufacturers.
73, Jim K9YC
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