Re: [Elecraft] K1 tuning rate... is 150 kHz too wide?
Another way is to use a tiny DPDT switch to insert series resistance with the pot, either on one side or the other giving you two overlapping smaller tuning ranges at the flip of a switch. 72/73 - Mike WA8BXN ___ 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
Re: [Elecraft] K1 tuning rate... is 150 kHz too wide?
A compromise configuration is possible that makes tuning less cramped on the low end of a band on a K1 that has been built for 170 kHz VFO span: (1) On the 30m band filter board, use the 18.1 MHz hetrodyne crystal (normally installed when a 80 kHz VFO span is used) instead of the specified 18.0 MHz unit. Both crystals are supplied with filter board kits. This will cause 10.1 MHz to be the low end of VFO tuning instead of 10.0 MHz. (2) Solder another 100 kohm resistor in parallel with R19 at the VFO pot terminals, for an effective resistance of 50 kohm at R19. This will alter the linearity of VFO tuning such that the kHz per turn will typically be about 13 kHz per turn at the low end of the band, while at the high end of the band tuning will be more than 22 kHz per turn. This will result in spreading out the CW band at the low end where most activity is, and cramping it at the high end where only occasional CW operation will likely take place. However, I personally don't use this configuration because I want to be able to receive WWV at 10 MHz, and I like the nearly linear tuning rate. 73, Mike / KK5F ___ 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
Re: [Elecraft] K1 tuning rate ... is 150 KHz too wide?
Hey Doc! Are you going to change your call sign to WB2CW??? Paul Paul Gates K1 #0231 KX1 #1186 XG1 [EMAIL PROTECTED] - Original Message - From: "Sanger, Joseph" <[EMAIL PROTECTED]> To: Sent: Friday, August 05, 2005 8:19 AM Subject: [Elecraft] K1 tuning rate ... is 150 KHz too wide? > I use the 150 KHz range, and have little trouble with it ... yes, you have > to tune slowly ... ok, no big deal. (having said that, however, my main > interest in CW leaves me in the lower 80 KHz anyway!) > > I am, however, looking forward to the smoother tuning on the K2 that was > just delivered to my apartment yesterday ... of course, it will take a > month or so to begin using it! > > Joseph Sanger, M.D. > WB2SSB > > --- > This email message, including any attachments, is for the sole use of the > intended recipient(s) and may contain information that is proprietary, > confidential, and exempt from disclosure under applicable law. Any > unauthorized review, use, disclosure, or distribution is prohibited. If > you have received this email in error please notify the sender by return > email and delete the original message. Please note, the recipient should > check this email and any attachments for the presence of viruses. The > organization accepts no liability for any damage caused by any virus > transmitted by this email. > > == > > ___ > 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
[Elecraft] K1 tuning rate ... is 150 KHz too wide?
I use the 150 KHz range, and have little trouble with it ... yes, you have to tune slowly ... ok, no big deal. (having said that, however, my main interest in CW leaves me in the lower 80 KHz anyway!) I am, however, looking forward to the smoother tuning on the K2 that was just delivered to my apartment yesterday ... of course, it will take a month or so to begin using it! Joseph Sanger, M.D. WB2SSB --- This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is proprietary, confidential, and exempt from disclosure under applicable law. Any unauthorized review, use, disclosure, or distribution is prohibited. If you have received this email in error please notify the sender by return email and delete the original message. Please note, the recipient should check this email and any attachments for the presence of viruses. The organization accepts no liability for any damage caused by any virus transmitted by this email. == ___ 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] K1 tuning rate ... is 150 KHz too wide?
I use the 150 KHz range, and have little trouble with it ... yes, you have to tune slowly ... ok, no big deal. (having said that, however, my main interest in CW leaves me in the lower 80 KHz anyway!) I am, however, looking forward to the smoother tuning on the K2 that was just delivered to my apartment yesterday ... of course, it will take a month or so to begin using it! Joseph Sanger, M.D. WB2SSB --- This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is proprietary, confidential, and exempt from disclosure under applicable law. Any unauthorized review, use, disclosure, or distribution is prohibited. If you have received this email in error please notify the sender by return email and delete the original message. Please note, the recipient should check this email and any attachments for the presence of viruses. The organization accepts no liability for any damage caused by any virus transmitted by this email. == ___ 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
Re: [Elecraft] K1 tuning rate... is 150 kHz too wide?
The same reason holds for 80 mtrs as does for the 30 mtr band.Personally, I like all the coverage I can get.Your chioce Peter...John KF7OM K1 #1734 I think its the same VFO as my Wilderness Sierra.(similar)?? - Original Message - From: "Mike Morrow" <[EMAIL PROTECTED]> To: "Peter Wang" <[EMAIL PROTECTED]>; "elecraft" Sent: Thursday, August 04, 2005 2:25 PM Subject: Re: [Elecraft] K1 tuning rate... is 150 kHz too wide? Pete wrote: I'm considering getting a K1, this question of 80 vs. 150 kHz VFO tuning width is a bit disconcerting. I hold the minority view that 150 kHz span (you'll actually get closer to 180 kHz) works just fine. The tuning is pretty linear at about 18 kHz per turn across the entire tuning range. I like being able to tune all of the US 40m Morse band. That *alone* would make me choose the wider span. I also like being able to tune down to 10 MHz WWV on the 30m band. I use some felt between the front panel and the back of the VFO knob to provide a little resistance. The VFO pot is too easy to turn otherwise. That's a problem with the 180 kHz span, for certain, but also even for the 80 kHz option. If I were in a region with a restricted 40m Morse band, I'd choose 80 kHz. Mike / KK5F K1 #175 (November 2000) ___ 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
Re: [Elecraft] K1 tuning rate... is 150 kHz too wide?
Pete wrote: >I'm considering getting a K1, this question of 80 vs. 150 kHz VFO >tuning width is a bit disconcerting. I hold the minority view that 150 kHz span (you'll actually get closer to 180 kHz) works just fine. The tuning is pretty linear at about 18 kHz per turn across the entire tuning range. I like being able to tune all of the US 40m Morse band. That *alone* would make me choose the wider span. I also like being able to tune down to 10 MHz WWV on the 30m band. I use some felt between the front panel and the back of the VFO knob to provide a little resistance. The VFO pot is too easy to turn otherwise. That's a problem with the 180 kHz span, for certain, but also even for the 80 kHz option. If I were in a region with a restricted 40m Morse band, I'd choose 80 kHz. Mike / KK5F K1 #175 (November 2000) ___ 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
Re: [Elecraft] K1 tuning rate... is 150 kHz too wide?
SM0RVV, Erik has it right. Starting at 0.70 on most bands you are fighting the digital modes anyway. I actually wouldn't mind a mod to make the total spread variable. I am very rarely above 0.25 on any of the bands. That way you could switch to 25kHz (example) total and have some real fine tuning. .. Note: North American QSO Party (NAQP) CW contest this weekend. 12 hours totalstarting at 1800 UTC Sat. Great chance to WAS in just a few hours. Lots of BIG stations listening for QRP sigs... 73, Art W6KY --- Erik Linder <[EMAIL PROTECTED]> wrote: > Peter Wang wrote: > > Does anyone out there use 150 kHz and LIKE it? Did > anyone out there > > try 150 kHz and hate it and switch to 80 kHz? > > I first built it with 150 kHz, but changed to 80 > after a few weeks. > The VFO was not exact enough for my taste. > And besides that, I did not use the upper part of > the 150 kHz span anyway. > > I vote for 80, but your milage may vary... > > 73 de SM0RVV ./Erik > K1 #1978 > K2 #4904 (just the speaker left to do, yipeee!) > ___ > 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
Re: [Elecraft] K1 tuning rate... is 150 kHz too wide?
Peter Wang wrote: Does anyone out there use 150 kHz and LIKE it? Did anyone out there try 150 kHz and hate it and switch to 80 kHz? I first built it with 150 kHz, but changed to 80 after a few weeks. The VFO was not exact enough for my taste. And besides that, I did not use the upper part of the 150 kHz span anyway. I vote for 80, but your milage may vary... 73 de SM0RVV ./Erik K1 #1978 K2 #4904 (just the speaker left to do, yipeee!) ___ 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
RE: [Elecraft] K1 tuning rate... is 150 kHz too wide?
I tried 150khz and didn't like it at all. The tuning was WAY too fast for me, and it didn't add any portion of the CW bands that is of any use. It was an easy change so I'm glad I tried it. 80 khz even seems a tad fast when I first use it after the K2, but after a few minutes it's a great compromise. It is slow enough to make tuning a pleasure and fast enough that rapid QSY from the bottom of the band to the QRP freq is convenient. There is no way I would consider going back to 150 khz. I use my K1 at home, car camping and day packing. Regardless, the 150 khz range makes the tuning too fast. It's a great rig. For CW ragchewing at home, I prefer it to my K2. It's more pleasing to my ear for some reason even when used with the same speaker or phones. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Wang Sent: Thursday, August 04, 2005 10:51 AM To: elecraft Subject: [Elecraft] K1 tuning rate... is 150 kHz too wide? I'm considering getting a K1, this question of 80 vs. 150 kHz VFO tuning width is a bit disconcerting. I'd like to set it up for 150, but worry that the rate will be too fast, too fatiguing to use. Does anyone out there use 150 kHz and LIKE it? Did anyone out there try 150 kHz and hate it and switch to 80 kHz? My use will be mostly desktop, not in the field. 73, Pete KF5ND ___ 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
[Elecraft] K1 tuning rate... is 150 kHz too wide?
I'm considering getting a K1, this question of 80 vs. 150 kHz VFO tuning width is a bit disconcerting. I'd like to set it up for 150, but worry that the rate will be too fast, too fatiguing to use. Does anyone out there use 150 kHz and LIKE it? Did anyone out there try 150 kHz and hate it and switch to 80 kHz? My use will be mostly desktop, not in the field. 73, Pete KF5ND ___ 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
