Chris
You would only need to re-calibrate the "VFO" if you swap a board which has the same band as the other one, ie I have a 80/40 two band board for Winter use and a 40/30/20/15 one for summer, I have to re-set the 40m calibration when changing the boards as the two 40m band crystals differ in frequency slightly. You do have to tell the K1 which bands are on the board, but that is easy and can be done "in the field". Have you picked up the old tip of threading a rubber band through the spacers to make swapping boards less of a juggling act? The rubber band holds the spacers on the long bolts and still allows you to tighten everything up. You can add capacitance to a KAT1 to improve the low frequency tuning ability, I've done that with mine. See: http://www.astromag.co.uk/k2/g4aon_kat1_mods.pdf for details of an easy and reversible modification. 73 Dave, G4AON K1 #1154, K2 #1892, K3/100 #80 ------------------------------------------- I recently purchased a K1 for use at our vacation QTH, and gave it its first workout today during NAQP. It's not a contest rig, but it did just fine :-) I've got a couple of questions: - I have two band modules: 40/30/20/15 and 80/17. Do I need to do any recalibration when I swap? How involved is this? - I have a KAT1, and it worked fine until I tried to use my W3EDP on 40m. It's not really a W3EDP because I feed it remotely with coax and a BL2 balun. I have the 'output' menu item set to 5W. If I use the 4:1 setting on the BL2, the KAt1 would get down to about 1.7:1, but the max output was 3.8W (according to the display). If I use the 1:1 setting, it would only get down to 3.6:1 or so, but was happy to send 5W out. Huh? 73 de chris K6DBG _______________________________________________ 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 |
Dave,
Great information. Very nice PDF file. Best, DW Holtan WB7SSN ----- Original Message ----- From: "Dave G4AON" <[hidden email]> To: <[hidden email]> Sent: Sunday, January 13, 2008 12:52 AM Subject: [Elecraft] K1 questions > Chris > > You would only need to re-calibrate the "VFO" if you swap a board which > has the same band as the other one, ie I have a 80/40 two band board for > Winter use and a 40/30/20/15 one for summer, I have to re-set the 40m > calibration when changing the boards as the two 40m band crystals differ > in frequency slightly. You do have to tell the K1 which bands are on the > board, but that is easy and can be done "in the field". > > Have you picked up the old tip of threading a rubber band through the > spacers to make swapping boards less of a juggling act? The rubber band > holds the spacers on the long bolts and still allows you to tighten > everything up. > > You can add capacitance to a KAT1 to improve the low frequency tuning > ability, I've done that with mine. See: > http://www.astromag.co.uk/k2/g4aon_kat1_mods.pdf for details of an easy > and reversible modification. > > 73 Dave, G4AON > K1 #1154, K2 #1892, K3/100 #80 > ------------------------------------------- > > I recently purchased a K1 for use at our vacation QTH, and gave it > its first workout today during NAQP. It's not a contest rig, > but it did just fine :-) > > I've got a couple of questions: > > - I have two band modules: 40/30/20/15 and 80/17. Do I need to do > any recalibration when I swap? How involved is this? > > - I have a KAT1, and it worked fine until I tried to use my W3EDP > on 40m. It's not really a W3EDP because I feed it remotely with > coax and a BL2 balun. I have the 'output' menu item set to 5W. If I > use the 4:1 setting on the BL2, the KAt1 would get down to about > 1.7:1, but the max output was 3.8W (according to the display). > If I use the 1:1 setting, it would only get down to 3.6:1 or so, > but was happy to send 5W out. Huh? > > 73 de chris K6DBG > _______________________________________________ > 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 |
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