[amsat-bb] Problems with my Arrow

[R.T.Liddy]

Problems I experienced in the past with my Arrow:
- The 2m  & 70cm cables were transposed at the XCVR.
- The center pin on the 70cm feedline BNC at the antenna was   pushed back and not contacting at the Gamma Match.
- The Driven Element rod on the side opposite the Gamma side    worked loose and was not contacting the boom.
Simple problems, but quite vexing until identified & fixed
Bob  K8BL


      From: Paul Stoetzer <n8hm at arrl.net>
 To: John Brier <johnbrier at gmail.com> 
Cc: AMSAT BB <amsat-bb at amsat.org>
 Sent: Friday, March 31, 2017 8:47 PM
 Subject: Re: [amsat-bb] Problems with my Arrow
   
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
> >>
> >>    _______________________________________________
> >>    Sent via AMSAT-BB at amsat.org <mailto:AMSAT-BB at amsat.org>. AMSAT-NA
> >>    makes this open forum available
> >>    to all interested persons worldwide without requiring membership.
> >>    Opinions expressed
> >>    are solely those of the author, and do not reflect the official
> >>    views of AMSAT-NA.
> >>    Not an AMSAT-NA member? Join now to support the amateur satellite
> >>    program!
> >>    Subscription settings:
> >>    http://www.amsat.org/mailman/listinfo/amsat-bb
> >>    <http://www.amsat.org/mailman/listinfo/amsat-bb>
> >>
> >>
> >>
> > _______________________________________________
> > Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> Opinions
> > expressed
> > are solely those of the author, and do not reflect the official views of
> > AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
_______________________________________________
Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb