I can't math ! Correct my #'s below.
Mike, Coreen & Corey Keswick Ridge, NB -----Original Message----- From: Mike Smith VE9AA [mailto:ve...@nbnet.nb.ca] Sent: December 4, 2021 2:02 PM To: 'd...@w3fpr.com'; 'Elecraft@mailman.qth.net' Subject: RE: [Elecraft] Elecraft K1 VFO reading As a follow up to Don's great advice, I had a few spare moments today while I was relaxing from some physical labour so decided to crack open the wee little K1 and take his advice. I compressed the turns on L1 (whoa, is it ever finicky!) but after some playing around my tuning is now: 20m- - -13.918MHz - 14.0796MHz 40m - - - 6.978MHz - 7.0858 MHz I seem to have a little more than the spec'd 80kHz of tuning range, but not as much as the 150kHz of some kits. I have no history on this thing, but it's all good. I am very happy with these results. As long as it won't drift above the lower band edge on 40m once it's warmed up, I think I am going to just leave it be for now. Thanks Don ! Mike VE9AA Mike, Coreen & Corey Keswick Ridge, NB -----Original Message----- From: Mike Smith VE9AA [mailto:ve...@nbnet.nb.ca] Sent: November 26, 2021 6:02 PM To: 'd...@w3fpr.com'; 'Elecraft@mailman.qth.net' Subject: RE: [Elecraft] Elecraft K1 VFO reading Thank you very much Don ! This is exactly the type of FB information I was looking for. I rec'd a few emails telling me to calibrate it, however the VFO reads right smack dab on perfect, so I didn't wish to mess with it by redoing something that may not help. I'll probably just leave it (at least for now), but your info is very much appreciated and I'll save it for a rainy day perhaps. The only time I would ever make a QSO above 7068 or 14063 would be in a contest, and this would not be the rig I'd be contesting with, hi I have a ton of other rigs (some Elecrafts too....KX3, KX2(on order) and a K3) and some Japanese rigs too.....All are much better suited to contesting. This lil' guy will see light duty as a Motorcycle mobile (portable, really) rig for Parks or Islands on the air and the occasional Wednesday "CWT" (an activity event like a contest). I like its simplicity and very small size. Good for the Harley. Thanks again Don and all. What a great bunch ! Maybe see some of you (all of a sudden!) in CQWW CW this weekend. I'll be 15m single band. Mike VE9AA Mike, Coreen & Corey Keswick Ridge, NB -----Original Message----- From: Don Wilhelm [mailto:d...@w3fpr.com] Sent: November 26, 2021 5:52 PM To: Mike Smith VE9AA; Elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft K1 VFO reading Mike, The K1 must tune a bit below the low end of each band. That is to compensate for the crystals on the band board not being precision crystals - so your K1 is behaving as normal. You CAN tweak it by a small amount on ONE band (the 2nd band will change too). In your case, I would choose 40 meters since it is only low by 20 kHz while 20 meters is low by 26 kHz. You can do this in receive by looking at the frequency display because you have already confirmed it is showing the correct frequency. Tune the VFO to the low end of 40 meters and then spread (or compress) the turns of L1 a little at a time until the display shows about 6995kHz, then check 20 meters to make sure it is a bit below the band edge too. That is the best compromise that you can do without losing a bit of the bottom edge of the band. 73, Don W3FPR On 11/26/2021 3:17 PM, Mike Smith VE9AA wrote: > Just bought a K1..an oldie but a goodie, I guess. > > NB board and 2 bands board (20/40) No tuner. > > > > So, just playing around, getting familiarized with this new-to-me little rig > before transmitting or hooking it up to a real antenna and I notice: > > > > on 20m: it tunes from 13.974MHz - 14.063MHz > > > > and on it tunes from 40m from 6.980MHz-7.068MHz > > > > When I transmit on a nearby rig or compare frequencies to DX cluster spots, > just using a chunk of wire for an antenna, and listen for the various > stations it looks like the VFO is reading pretty much bang on. > > > > So, is this a matter of incorrect components installed or a poor alignment > or the (re)seller messing with the "CAL" in the menu or ?? > > > > I don't really want to mess with it too much, but I am missing 20-25kHz of > usable bandwidth on each band. (seems like I have about 88kHz of tuning > range, but 20-26kHz of it is below the bands---oof !) > > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
