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80 Meter Horizontal Loop
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June 7th 05, 02:30 PM
Bob Miller
Posts: n/a
On 7 Jun 2005 04:35:50 -0700,
wrote:
My 2 cents on the subject of tuner loss.
A tuner will Always introduce more loss to the system.
If the total power output of the transmitter is not improved(ie, at
2:1 SWR), then using the tuner to reduce SWR to 1:1 is counter
productive, isn't it?
For me, not so. The manual for my Icom 735 says it is designed to
handle 1:1.5 swr, but to try to get it as close to 1:1 as possible.
I just tried an experiment on 20 meters with my 80 meter dipole and an
MFJ 989c tuner. At 1:1 swr, the meter measures 110 watts out; raising
the swr to 2:1 lowers the metered output to 20 watts. So I'm not sure
what the advantage of running a higher swr is.
bob
k5qwg
In other words, getting the SWR down to 1:1 from anything = 2:1, will
always cause a reduction in total power out.
Pat W0OPW
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