[Elecraft] KPA-100 Problems

Hi Guys, I am having problems with the KPA-100. 80m reports of distorted audio, like a vibrating effect associated with it. And even when I have the PO adjusted to a max of 15 watts it seems to transmit up to 60w out. I know it's not RF feedback caused by antenna because I have the same

[Elecraft] de-sensitizing C22

Good morning to all First of all my K2 (base CW) is finally complete and has passed all of the basic tests with flying colors. Now that I can receive on all bands, I decided to go back and do a more thorough calibration of the 4MHz reference clock and then start on the filters before moving

[Elecraft] General SMD Soldering Question

This is distantly related to the mainstream of QA on this net.I intend to use my new K2 to drive a Icom IC-2KL amplifier. Please imagine for now, there is an intermediate amp between the K2 and the 2KL. One of the twin PA boards on the 2KL ( a backup, I have 2 of them) is unfortunately,

RE: [Elecraft] de-sensitizing C22

Vern, Use a long slender metal screwdriver that nicely fits into the cap slot and you will find it much easier to adjust. If you are using the alignment tool supplied with the K2, it is too flexible for precise adjustment. If you mounted C22 the right way 'round, the adjustment slot should be

[Elecraft] KPA100 spurs

Hi I just installed a new X1 XTAL 18.432, as a part of upgrading the KPA100. I used components obtained locally. Stability of KPA100 is improved, at least it stopped oscillating on 17m band when I use SSB. But Now I find lots of spurs. Here is a list: 18.080, 21.415, 24.903, 24.984, 28.015,

RE: [Elecraft] General SMD Soldering Question

Wyn, If you have the hot air gun or oven and solder paste and know how to use it, by all means go that route, but if not, then just use the Hakko - you will be soldering two widely spaced tabs on the capacitors rather than finely spaced leads like are encountered on SMD ICs. Yes, the Kester 44

[Elecraft] FS: KX1 built and tested

For Sale: Selling because I am going to build my own QRP rig. KX1 #1046 with KXPD1 paddles with KXB30 module (30 meters) with KXAT1 internal auto tuner Clean, high quality build. Original owner. Works perfectly, on 20/30/40 meters. Comes with all documentation. $450 plus shipping at actual

RE:[Elecraft]KSB2

Before you send it off. Check the diodes. I installed 1 backwards and got the same issues. I am referring to the switching diodes on both ends of the crystal filter. Richard Kent, WD8AJG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net

Fw: [Elecraft] 4 mHz and C22 bandspread mod

G'day, Time flies, I didn't realise it was so long since this was posted. Regards, Mike VP8NO - Original Message - From: KEN BROWN [EMAIL PROTECTED] To: elecraft@mailman.qth.net | From: John, KI6WX [EMAIL PROTECTED] | Date: Sun, 24 Aug 2003 20:51:50 -0700 | Subject: [Elecraft] 4 MHz

[Elecraft] Blown R58 relpaced, still no power out, does anyone have any hints?

Hi Guys, A few weeks ago I managed to induce a fault into my K2 by transmitting into no load when testing the top band option. I found that R58, the 180 ohm, half watt resitior at the far end of T4 had been damaged and had a value of 4 ohms. So I replaced it and reassembled the K2 and I still

[Elecraft] test, disregard

My emails bounce, I try again. Peter,PE1E ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft

RE: [Elecraft] Blown R58 relpaced, still no power out, does anyone have any hints?

Steve, With R58 almost a direct short, there is a possibility that the PA transistors were conducting too hard and caused their untimely demise. But it would be best to check the RF voltages first before drawing any drastic conclusions like that. There actually could be any number of guesses

[Elecraft] K2: Can't get frequency counter to work on TP2

Hi, I finished construction of my K2 (serial #5400) last month and all was working well. At the time of construction all of the filter alignment went well. It has been lots of fun... I'm selling my Yaesu. :-) Since then I decided to calibrate the VFO on my K2 to get the frequency better

RE: [Elecraft] KPA-100 Problems

A few recent units have shown problems that at least sound similar to this one. See, for example: http://www.ac6rm.net/mailarchive/html/elecraft-list/2005-03/msg00676.html http://www.ac6rm.net/mailarchive/html/elecraft-list/2005-12/msg00408.html These two, at least, were due to the KSB2 ALC

[Elecraft] Building the XG-3

While building the K1, I had to come up with a signal source for alignment on 30m and 17m. The Norcal tuner upper for 30m (10116 kHz) works great as a signal source, but I had to resort to a noise generator for 17m. So I figured I could build myself an XG-3, the WARC band signal generator. I

[Elecraft] TEST....IGNORE

___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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:

Re: [Elecraft] General SMD Soldering Question

Thanks, Don: I have a larger iron and will try that approach first. I could also have tried to source other caps but instinctively went first for something similar to what was there before. Again, greatly appraciate your advice, 73 Wyn, VR2AX - Original Message - From: Don Wilhelm

[Elecraft] Looking for Web Sites

Hello, I am working on updating the EPA QRP Club Web site. If you have a QRP related web site of your own, please send me the link. I will place it on the EPA QRP Club web page. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org ___

[Elecraft] K2 lowest power output

Hi Don, I do not have any power meter which can measure any RF power output less than 1 watt. Could you please advise the minimum output power level of K2 with the power knot fully CCW? BTW, under the SEC menu of K2, the transverter output (without the installation of KV60) can be lowered