[amsat-bb] Problems with my Arrow

Paul Stoetzer n8hm at arrl.net
Sat Apr 1 00:47:06 UTC 2017


If the red cap comes out of the end, it's easy to short it too.

Seems unlikely it would be a gamma match issue with both sides at the same
time though.

73,

Paul, N8HM

On Fri, Mar 31, 2017 at 8:45 PM, John Brier <johnbrier at gmail.com> wrote:

> I had high SWR on my Arrow one time and it was because the screw on the
> gamma match came loose. Tightening it fixed it.
>
> 73, John Brier KG4AKV
>
> On Mar 31, 2017 8:41 PM, "Ken Alexander" <k.alexander at rogers.com> wrote:
>
> > Thanks Roger!  Just reading up on how to adjust a gamma match in the
> > field...sigh!
> >
> > 73,
> >
> > Ken
> > VE3HLS
> >
> >
> > On 2017-03-31 8:33 PM, Roger wrote:
> >
> >> If it's anything like my 857, one bar is about 1.5:1. Anything above two
> >> bars and I start looking for problems.
> >>
> >>
> >> 73, Roger
> >> W7TZ
> >> CN83ia
> >>
> >> On Fri, Mar 31, 2017 at 5:24 PM, Ken Alexander <k.alexander at rogers.com
> >> <mailto:k.alexander at rogers.com>> wrote:
> >>
> >>     I just checked the SWR using my FT-817ND's built in meter.  I
> >>     connected directly from the 817 to the appropriate connector on
> >>     the Arrow.
> >>
> >>     At 435 MHz the SWR meter shows 5 bars, which doesn't sound good to
> me.
> >>
> >>     At 145 MHz I get a very brief indication of 6(?) bars and then the
> >>     the bars immediately disappear.  This sounds to me like a
> >>     protection circuit engaging, and subsequent presses of the mic
> >>     button produces no output.  It also explains why I practically
> >>     never get into SO-50.
> >>
> >>     The FT-817 manual is silent on the meaning of the bars on the SWR
> >>     meter.  Does anybody have an knowledge of the 817's SWR meter that
> >>     they could pass along to me?  Any assistance would be very
> >>     gratefully received!
> >>
> >>     Many thanks in advance,
> >>
> >>     Ken
> >>     VE3HLS
> >>
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> >>
> >>
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> _______________________________________________
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