Mechanical bug contact bounce

[Bryce A. Carr-2]

To get rid of the "dot" contact bounce, erratic sounding dots, that I experienced I put a .22 microfarad across the keyline on K3 side of keyline and a 10K resistor in series with the key line on the bug side of the keyline. On a 2nd receiver my two bugs now sound like a electronic keyer.
If you use a bug on the K2 you can try a 3300 ohm.

I am still playing with the K3 a friend had me build for him. Lucky for me he doesn't know the job is finished. My K3 is on order.
So many great features on this radio. I love the unsquelched band scan for monitoring quiet bands.
The 160m noise fighting equipment is the best I have ever used.
The minimum bandwidth of the dsp is perfect. Some time back I spent a lot more money for a radio that has a too wide dsp minimum bandwidth.
                                                Aloha,
                                                     Bryce, kh6at
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[WA6L]

Interesting stuff, Briyce!  I have been using my Blue Racer on the K3 and have heard the occasional erratic dot.  I thought it might be dirty contacts (it's an old bug).

What were you hearing that made you come up with the fix?  The odd dot that I hear is not repeatable and not regular.

Aloha and 73,

John, WA6L  (ex AH6CL)

Bryce A. Carr-2 wrote

To get rid of the "dot" contact bounce, erratic sounding dots, that I experienced I put a .22 microfarad across the keyline on K3 side of keyline and a 10K resistor in series with the key line on the bug side of the keyline. On a 2nd receiver my two bugs now sound like a electronic keyer.
If you use a bug on the K2 you can try a 3300 ohm.

<snip>

                                                Aloha,
                                                     Bryce, kh6at
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[Bryce A. Carr-2]

Every several seconds you experience a scrambled dot and it sounds like
dirty or misadjusted contacts.
                                                      Aloha,
                                                          Bryce
----- Original Message -----
From: "WA6L" <[hidden email]>
To: <[hidden email]>
Sent: Monday, September 15, 2008 9:30 AM
Subject: Re: [Elecraft] Mechanical bug contact bounce

>
>
> Interesting stuff, Briyce!  I have been using my Blue Racer on the K3 and
> have heard the occasional erratic dot.  I thought it might be dirty
> contacts
> (it's an old bug).
>
> What were you hearing that made you come up with the fix?  The odd dot
> that
> I hear is not repeatable and not regular.
>
> Aloha and 73,
>
> John, WA6L  (ex AH6CL)
>
>
>
> Bryce A. Carr-2 wrote:
>>
>> To get rid of the "dot" contact bounce, erratic sounding dots, that I
>> experienced I put a .22 microfarad across the keyline on K3 side of
>> keyline and a 10K resistor in series with the key line on the bug side of
>> the keyline. On a 2nd receiver my two bugs now sound like a electronic
>> keyer.
>> If you use a bug on the K2 you can try a 3300 ohm.
>>
>> <snip>
>>
>>                                                 Aloha,
>>                                                      Bryce, kh6at
>> _______________________________________________
>> Elecraft mailing list
>> Post to: [hidden email]
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>>  http://mailman.qth.net/mailman/listinfo/elecraft
>>
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>>
>>
>
> --
> View this message in context:
> http://n2.nabble.com/Mechanical-bug-contact-bounce-tp1089559p1091147.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
> _______________________________________________
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>

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