Jeff, If the PLL/VCO works, in all likelyhood, the thermistor board is functioning. If one wants to know how well it is working, drift measurements would have to be made after the K2 is assembled and tested in all other aspects. Making drift measurements is a tedious endeavor and to assure good measurements should be done in an environmental chamber. Experimental Methods in RF Design has a nice article showing how to make a small environmental chamber from a picnic cooler and a light bulb.
73, Don W3FPR > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Jeff Kinzli > Sent: Tuesday, February 06, 2007 3:57 PM > To: [EMAIL PROTECTED] > Cc: Elecraft@mailman.qth.net > Subject: Re: [Elecraft] Thermistor board > > > Along these lines, is there a way to know that the thermistor board is > working properly? I'm guessing one would see drift, but are there more > efficient, quantitative tests to ensure thermistor board function? > > Thanks, > > Jeff > > On 2/6/07, Chuck <[EMAIL PROTECTED]> wrote: > > > > > > > > Dave, > > > > It's tight, but everything will fit. Be sure the leads coming > out of the thermistor board bend immediately 90 deg to the RF board. > > > > Also take a good long hard look at your solder joints on that > little thing. The holes are not clad, so solder does not flow > there like the rest of the kit. > > > > My only problem with the whole kit was a joint on the > thermistor board. I looked at it several times and signed it off > as good. I had to do a great deal of disassmbly to find out that > was my problem afterall. > > > > I just finished up my K2/100 yesterday and enjoyed my first > QSOs last night. > > > > Chuck K4QS > > > > _______________________________________________ > > No banners. No pop-ups. No kidding. > > Make My Way your home on the Web - http://www.myway.com > > > > > > _______________________________________________ > > 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: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > > _______________________________________________ > 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: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.432 / Virus Database: 268.17.28/672 - Release Date: > 2/6/2007 10:22 AM > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.17.28/672 - Release Date: 2/6/2007 10:22 AM _______________________________________________ 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: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
