K3 + Microkeyer II - RF into paddle input
Locked
 
|
Has anyone had a problem with RF getting into the paddle input of the MKII ?
Problem is reduced somewhat by careful adjustment of the router `Winkey` page, but essentially series of Ds likey to turn into Ms and Gs (!); fine with K3 on test so has to be RF based. MKII keys clean with no problems `internally` but misbehaves when keyed with paddle. Tried all usual decoupling - separate power supplies etc etc .. On a slightly separate but perhaps relevant note, I have no +12V output on the rear phone jack on the K3 - this is bracketed (switched) in the manual but I can find no reference to where to switch it ! ... it means running the MKII from a 12v psu with the DB37-EL-K3 12v in phone lead floating free. Thanks in advance for any help ! Terry G4AMT _______________________________________________ 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 |
|
|
Terry, I don't know if this is the same problem, but there is a well-documented issue with MicroKeyers (actually with the Winkey chip). It has to do with the properties of certain metallic compounds used in the contacts on the keys. The Begali keys are the ones most apt to have the problem, but there could be others. You end up with extra 'dits' and occasionally other anomalies. The fix is somewhere on the microHam USA web site -- they sell an interface that goes between the key and the MicroKeyer and fixes the issue, Good luck and 73, John, WA6L
|
RE: K3 + Microkeyer II - RF into paddle input
|
|
> The fix is somewhere on the microHam USA web site > -- they sell an interface that goes between the key and the > MicroKeyer and fixes the issue, microKEYER II already includes the "debouncer function" and separate left/right paddle inputs. The only way RF is going to effect the paddles is if there are significant common mode RF issues in a particular installation. Common mode elimination methods have been discussed at length by K9YC and W1HIS among others. 73, ... Joe, W4TV > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of WA6L > Sent: Thursday, December 18, 2008 6:14 PM > To: [hidden email] > Subject: Re: [Elecraft] K3 + Microkeyer II - RF into paddle input > > > > > Terry, > > I don't know if this is the same problem, but there is a > well-documented issue with MicroKeyers (actually with the > Winkey chip). It has to do with the properties of certain > metallic compounds used in the contacts on the keys. The > Begali keys are the ones most apt to have the problem, but > there could be others. > > You end up with extra 'dits' and occasionally other > anomalies. The fix is somewhere on the microHam USA web site > -- they sell an interface that goes between the key and the > MicroKeyer and fixes the issue, > > Good luck and 73, > > John, WA6L > > > > g4amt wrote: > > > > Has anyone had a problem with RF getting into the paddle > input of the > > MKII ? Problem is reduced somewhat by careful adjustment of > the router > > `Winkey` page, but essentially series of Ds likey to turn > into Ms and > > Gs (!); fine with K3 on test so has to be RF based. MKII keys clean > > with no problems `internally` but misbehaves when keyed > with paddle. > > Tried all usual decoupling - separate power supplies etc etc .. > > > > On a slightly separate but perhaps relevant note, I have no +12V > > output on > > the rear phone jack on the K3 - this is bracketed (switched) in the > > manual > > but I can find no reference to where to switch it ! ... it > means running > > the MKII from a 12v psu with the DB37-EL-K3 12v in phone > lead floating > > free. > > Thanks in advance for any help ! > > > > Terry > > G4AMT > > > > _______________________________________________ > > 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/K3-%2B-Microkeyer-II---RF-into-paddle-inp Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ 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 _______________________________________________ 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 |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |