Ken:
For what it's worth, I have noticed the same for years on my PowerMaster Meters
that there is a bit of power drop when going thru BPF's.
In my case I use Dunestar 600's and I can see as much as 10w drop on the output
of the BPF when the BPF is on and maybe a watt or so when the BPF is
"> Does anyone have a good explanation for this?"
I don't know if this is a "good" explanation, but it is one that is
sometimes [often?] true:
Many TX Power sensors actually measure voltage, it's a whole lot easier
than power. The meter or display is marked in watts which are computed
by
Hi Mark,
Thank you for a cogent explanation. Clearly, I never thought about the math
nor realized how much those little losses add up.
73, Ken, K6LA / VY2TT
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I certainly understand the concern though. Personally, I have replaced
UHF connectors with N connectors where I can, use nothing worse than
RG214 or LMR400 for interconnects at my station, and have the
interconnects as short as possible. I built many cables with exactly
the connectors and lengths
On Mon,12/28/2015 6:40 PM, Mark Goldberg wrote:
I have replaced
UHF connectors with N connectors where I can, use nothing worse than
RG214 or LMR400 for interconnects at my station, and have the
interconnects as short as possible. I built many cables with exactly
the connectors and lengths
I am having an anomaly with the TX Mon power measurements on my P3s. The
power varies significantly depending upon where I put the TX sensor in the
RF chain (K3 -> BPF -> Alpha 87A -> Coax Stubs -> Tuner -> Antenna Coax.) I
have a 3" coax jumper on the appropriate end of the P3's TX sensor. I get
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