[Elecraft] KAT500 - does it earth antenna connections

Fri, 01 Oct 2021 06:32:46 -0700

I would suggest a dummy load be connected to antenna port #1 and your antennas to #2 and #3.   As to grounding, I suggest one review the ARRL book "Grounding and Bonding for the amateur station".
I've seen many ham stations that ground ground ground and still have issues, in some cases they attribute to a dangerous condition,  regarding lightning protection and RF grounding. There is a LOT of incorrect and incomplete information passed around with regard to grounding.  It is mostly originated as  "old ham lore" with no scientific basis found or applied. 


And yes, the KAT500 has 3 antenna ports and port #1 is the default 
selected when power is not applied.


73

Bob, K4TAX


On 10/1/2021 8:15 AM, [email protected] wrote:

Message: 11
Date: Thu, 30 Sep 2021 10:10:49 -0500
From: Ted Edwards W3TB<[email protected]>
To: "David Ferrington, M0XDF"<[email protected]>
Cc: ElecraftList<[email protected]>
Subject: Re: [Elecraft] KAT500 - does it earth antenna connections
Message-ID:
        <CAGhFmTiqzrwkAxv=TY6ZGaeO=-zut+irkq0n42levtkldao...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

Interesting idea.
I have two antennas, so I could connect my ground to #1 and antennas to #2
and #3?
Just manually choose an antenna on start-up.   Hm-m-m-m-m.

On Thu, Sep 30, 2021 at 9:54 AM David Ferrington, M0XDF <
[email protected]> wrote:


Thanks Greg - guess I should learn to count!
73 de David, M0XDF

If people knew how hard I worked to get my mastery, it wouldn't seem so
wonderful after all. -Michelangelo Buonarroti, sculptor, painter,
architect, and poet (1475-1564)


On 30 Sep 2021, at 15:46, Greg Mitchell<[email protected]>  wrote:

It has 3 antenna connections, not 4. It grounds the unused ones and

selects antenna 1 on power-off. I put my dummy-load on antenna 1 so my
station is disconnected from the antennas when powered down.

On Thu, Sep 30, 2021 at 10:40 AM David Ferrington, M0XDF <

[email protected]  <mailto:[email protected]>> wrote:

Sorry if this is obvious, but I haven?t bought a KAT500 yet (to go with

the KPA500 I managed to pick up from a fellow ham). I?m aware there are 4
selectable antenna connectors. Does it ground or earth the ones not
currently selected?

73 de David, M0XDF (K3 #174, P3 #108)

For disappearing acts, it's hard to beat what happens to the eight hours

supposedly left after eight of sleep and eight of work.

-Doug Larson

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-- 73 de Ted Edwards, W3TB and G?PWW and thinking about operating CW: 
"Do today what others won't, so you can do tomorrow what others can't."

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