Foot switch for keying an amp?

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wb3cez
Posts: 39
Joined: Sun Mar 21, 2004 11:11 am

Foot switch for keying an amp?

Post by wb3cez » Mon Jan 18, 2010 7:10 pm

I have noticed some people seem to prefer using a foot switch to key an amp instead of having the transmitter key it. Is there some particular reason for this? Just recently picked up an amp and was wondering what the advantage might be.

k4kk
Posts: 207
Joined: Tue Dec 30, 2003 12:20 am
Location: The great state of Tennessee

Post by k4kk » Tue Jan 19, 2010 2:48 pm

The keying current is too high for some transmitters with some amplifiers.
The keying relay doesn't drop in/out with a foot switch if you are on vox or semi-break in.
The footswitch can be used to key both amp and transmitter if you wish.
With break in CW, the footswitch is self defeating but keeps the amp from "rattling."
I actually use both methods depending on what I am doing (rag chew vs contest, etc).

KA9MOT
Posts: 282
Joined: Thu Jul 26, 2007 4:40 pm

Post by KA9MOT » Thu Jan 21, 2010 1:28 am

I prefer a footswitch. It frees up the hands and takes very little getting used to. I use a footswitch to key the rig, no Amp here.

Now, I have to figure a way to keep it from sliding all over the carpet.

KG0MN
Posts: 17
Joined: Fri Jan 15, 2010 4:45 pm

Post by KG0MN » Mon Apr 05, 2010 2:24 pm

I found and have used for years the foot switches that come with Dictaphone machines. They usually are setup so that one side of the switch starts and the other side stops the Dictaphone machine. Just re-wire it so that both side close the contacts and then it makes no difference which side you step on.

KG0MN

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