[amsat-bb] Problems with my Arrow
johnbrier at gmail.com
Sat Apr 1 00:45:36 UTC 2017
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
> 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
>> 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,
>> 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
>> Subscription settings:
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> are solely those of the author, and do not reflect the official views of
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
More information about the AMSAT-BB