Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
Jim, Yes, the lowest transverter IF is 7-MHz. Of course you can operate the K3 in low power transceive on any frequency from 490-KHz to 32-MHz if in the TEST mode. Only issue is VFO readout is the IF and not the operating frequency of a converter or transverter. But say you use 3.472-3.478 MHz as your IF? Your LO would be 3.000 MHz. This could even be a DDS oscillator locked to a 10-MHz reference. A simple mixer and LO without filters would work 0-500 KHz (maybe). The wider issue if using other ham transceivers that only operate in the ham bands. My K3 has the EXREF board for referencing to an external 10-MHz source. This enables 0.1 ppm accuracy. A 10-MHz LO is 1-Hz stabile. 73, Ed - KL7UW At 03:58 PM 9/10/2013, Jim Miller wrote: It would really be nice if K3 would support 80m as a transverter frequency. If it did it would enable 3.5-4.0Mhz to reflect the full 500Khz from a low band transverter. jim ab3cv 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com "Kits made by KL7UW" __ 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
Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
Hello All, I also would like to use 3.5 to 4.0 mhz for the IF frequency . I have completed the homebrew 630m transverter to work With the K3 . I am using 7 mhz IF , It seem to be stable , However It’s easier for me to build a more stable oscillator at 3.5 mhz. Also there is a broadcast station on 7.475 mhz . I can see the carrier on 475 khz , I have tried a few things To filter this carrier out, So far no luck , What a pain. Yes the 80 meter IF would be nice. 73 Ken K5DNL = From: Edward R Cole To: Jim Miller Cc: Elecraft Reflector ; "600...@w7ekb.com group" <600...@w7ekb.com> Sent: Wednesday, September 11, 2013 2:37 AM Subject: Re: [600MRG] [Elecraft] Use of K3 on 600m (and below) Jim, Yes, the lowest transverter IF is 7-MHz. Of course you can operate the K3 in low power transceive on any frequency from 490-KHz to 32-MHz if in the TEST mode. Only issue is VFO readout is the IF and not the operating frequency of a converter or transverter. But say you use 3.472-3.478 MHz as your IF? Your LO would be 3.000 MHz. This could even be a DDS oscillator locked to a 10-MHz reference. A simple mixer and LO without filters would work 0-500 KHz (maybe). The wider issue if using other ham transceivers that only operate in the ham bands. My K3 has the EXREF board for referencing to an external 10-MHz source. This enables 0.1 ppm accuracy. A 10-MHz LO is 1-Hz stabile. 73, Ed - KL7UW At 03:58 PM 9/10/2013, Jim Miller wrote: >It would really be nice if K3 would support 80m as a transverter frequency. >If it did it would enable 3.5-4.0Mhz to reflect the full 500Khz from a low >band transverter. > >jim ab3cv 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com "Kits made by KL7UW" ___ 600MRG mailing list 600...@w7ekb.com http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com __ 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
Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
Help me out here ... if I go into TEST mode and send something, my K3 is really making RF, albeit not much? As I accumulate birthdays, I find that, while my copy skill stays fairly constant, my "fine motor skills" are declining, and I don't get enough sending practice on the air. I've been getting the exercise in TEST mode, sometimes with the KPA500 in OPERATE and an antenna connected on the belief that the manual was correct and I wasn't making any RF. So far, I don't think I've sent any state secrets, credit card numbers, or other private information ... maybe I should put the dummy load on? 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 9/11/2013 12:37 AM, Edward R Cole wrote: Yes, the lowest transverter IF is 7-MHz. Of course you can operate the K3 in low power transceive on any frequency from 490-KHz to 32-MHz if in the TEST mode. __ 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
Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
Fred, I believe Ed is referring to the KXV3 TEST mode. See page 50 of the manual, the first bullet in the Milliwat TX Gain Calibration. That is different than TX TEST. 73, Don W3FPR On 9/11/2013 12:23 PM, Fred Jensen wrote: Help me out here ... if I go into TEST mode and send something, my K3 is really making RF, albeit not much? As I accumulate birthdays, I find that, while my copy skill stays fairly constant, my "fine motor skills" are declining, and I don't get enough sending practice on the air. I've been getting the exercise in TEST mode, sometimes with the KPA500 in OPERATE and an antenna connected on the belief that the manual was correct and I wasn't making any RF. So far, I don't think I've sent any state secrets, credit card numbers, or other private information ... maybe I should put the dummy load on? __ 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
Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
I use my K3 on 4.0 to 4.5 MHz with an old Palomar VLF converter. I just ignore the 4 and read the frequency directly in kHz. Works great and for such a simple circuit, there's not a lot of bleed-through. 73, Charlie k3ICH - Original Message - From: "Ken Roberson" To: "Edward R Cole" ; "Jim Miller" Cc: "Elecraft Reflector" ; "600...@w7ekb.com group" <600...@w7ekb.com> Sent: Wednesday, September 11, 2013 8:47 AM Subject: Re: [Elecraft] [600MRG] Use of K3 on 600m (and below) Hello All, I also would like to use 3.5 to 4.0 mhz for the IF frequency . I have completed the homebrew 630m transverter to work With the K3 . I am using 7 mhz IF , It seem to be stable , However It’s easier for me to build a more stable oscillator at 3.5 mhz. Also there is a broadcast station on 7.475 mhz . I can see the carrier on 475 khz , I have tried a few things To filter this carrier out, So far no luck , What a pain. Yes the 80 meter IF would be nice. 73 Ken K5DNL = From: Edward R Cole To: Jim Miller Cc: Elecraft Reflector ; "600...@w7ekb.com group" <600...@w7ekb.com> Sent: Wednesday, September 11, 2013 2:37 AM Subject: Re: [600MRG] [Elecraft] Use of K3 on 600m (and below) Jim, Yes, the lowest transverter IF is 7-MHz. Of course you can operate the K3 in low power transceive on any frequency from 490-KHz to 32-MHz if in the TEST mode. Only issue is VFO readout is the IF and not the operating frequency of a converter or transverter. But say you use 3.472-3.478 MHz as your IF? Your LO would be 3.000 MHz. This could even be a DDS oscillator locked to a 10-MHz reference. A simple mixer and LO without filters would work 0-500 KHz (maybe). The wider issue if using other ham transceivers that only operate in the ham bands. My K3 has the EXREF board for referencing to an external 10-MHz source. This enables 0.1 ppm accuracy. A 10-MHz LO is 1-Hz stabile. 73, Ed - KL7UW At 03:58 PM 9/10/2013, Jim Miller wrote: It would really be nice if K3 would support 80m as a transverter frequency. If it did it would enable 3.5-4.0Mhz to reflect the full 500Khz from a low band transverter. jim ab3cv 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com "Kits made by KL7UW" ___ 600MRG mailing list 600...@w7ekb.com http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com __ 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 __ 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
Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
Charlie, Yes they work great , Have you tried to copy the WSPR stations on 474.2 KHZ ? 73 Ken K5DNL From: "Charlie T, K3ICH" To: elecraft@mailman.qth.net Sent: Wednesday, September 11, 2013 3:07 PM Subject: Re: [Elecraft] [600MRG] Use of K3 on 600m (and below) I use my K3 on 4.0 to 4.5 MHz with an old Palomar VLF converter. I just ignore the 4 and read the frequency directly in kHz. Works great and for such a simple circuit, there's not a lot of bleed-through. 73, Charlie k3ICH - Original Message - From: "Ken Roberson" To: "Edward R Cole" ; "Jim Miller" Cc: "Elecraft Reflector" ; "600...@w7ekb.com group" <600...@w7ekb.com> Sent: Wednesday, September 11, 2013 8:47 AM Subject: Re: [Elecraft] [600MRG] Use of K3 on 600m (and below) > Hello All, > > > I also would like to use 3.5 to 4.0 mhz for the IF frequency > . > I have completed the homebrew 630m transverter to work > With the K3 . I am using 7 mhz IF , It seem to be stable , > However > It’s easier for me to build a more stable oscillator at 3.5 > mhz. > Also there is a broadcast station on 7.475 mhz . > I can see the carrier on 475 khz , I have tried a few things > To filter this carrier out, So far no luck , What a pain. > Yes the 80 meter IF would be nice. > 73 Ken K5DNL > = > > > > > From: Edward R Cole > To: Jim Miller > Cc: Elecraft Reflector ; "600...@w7ekb.com > group" <600...@w7ekb.com> > Sent: Wednesday, September 11, 2013 2:37 AM > Subject: Re: [600MRG] [Elecraft] Use of K3 on 600m (and below) > > > Jim, > > Yes, the lowest transverter IF is 7-MHz. Of course you can operate > the K3 in low power transceive on any frequency from 490-KHz to > 32-MHz if in the TEST mode. Only issue is VFO readout is the IF and > not the operating frequency of a converter or transverter. > > But say you use 3.472-3.478 MHz as your IF? Your LO would be 3.000 > MHz. This could even be a DDS oscillator locked to a 10-MHz > reference. A simple mixer and LO without filters would work 0-500 KHz > (maybe). > > The wider issue if using other ham transceivers that only operate in > the ham bands. > > My K3 has the EXREF board for referencing to an external 10-MHz > source. This enables 0.1 ppm accuracy. A 10-MHz LO is 1-Hz stabile. > > 73, Ed - KL7UW > > At 03:58 PM 9/10/2013, Jim Miller wrote: >>It would really be nice if K3 would support 80m as a transverter >>frequency. >>If it did it would enable 3.5-4.0Mhz to reflect the full 500Khz from a low >>band transverter. >> >>jim ab3cv > > 73, Ed - KL7UW > http://www.kl7uw.com > dubus...@gmail.com > "Kits made by KL7UW" > > > ___ > 600MRG mailing list > 600...@w7ekb.com > http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com > __ > 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 __ 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 __ 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
Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
Correct. Refer to the K3 manual, page 56, KXV3: "If KXV3 is set to TEST, the K3 will use low power (0.1 to1.50 mw) on all bands, including hte HF and transverter bands. RF input/output is via teh XVTR IN/OUT jacks in this case. To access the TEST setting, KXV3 must first be set to NOR, then K3 turned off/on. The K3 will transmit on any frequency from 490-KHz to 30-MHz in the test mode if you have the General Coverage filter installed. This procedure is how I used the K3 to transmit on 495-510 KHz under the experimental license WD2XSH/45. I found I only need 0.1 mw to drive my NDB transmitter. I insert the K3 drive in place of the standard xtal oscillator. Details of this is on my 600m webpage. 73, Ed -- Subject: Re: [Elecraft] [600MRG] Use of K3 on 600m (and below) Message-ID: <5230ad70.2080...@embarqmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Fred, I believe Ed is referring to the KXV3 TEST mode. See page 50 of the manual, the first bullet in the Milliwat TX Gain Calibration. That is different than TX TEST. 73, Don W3FPR 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com "Kits made by KL7UW" __ 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
Re: [Elecraft] [600MRG] Use of K3 on 600m (and below)
I am still waiting for 10MHz to be available as an IF band on the K3 to enable a 10MHz rubidium or GpS standard to be used as a local oscillator While I wait, I use my anan-10 sdr which produces ~5W on the band and has had qsos Dave Ww2r, g4fre -Original Message- From: 600MRG [mailto:600mrg-boun...@w7ekb.com] On Behalf Of Edward R Cole Sent: Wednesday, September 11, 2013 2:37 AM To: Jim Miller Cc: Elecraft Reflector; 600...@w7ekb.com group Subject: Re: [600MRG] [Elecraft] Use of K3 on 600m (and below) Jim, Yes, the lowest transverter IF is 7-MHz. Of course you can operate the K3 in low power transceive on any frequency from 490-KHz to 32-MHz if in the TEST mode. Only issue is VFO readout is the IF and not the operating frequency of a converter or transverter. But say you use 3.472-3.478 MHz as your IF? Your LO would be 3.000 MHz. This could even be a DDS oscillator locked to a 10-MHz reference. A simple mixer and LO without filters would work 0-500 KHz (maybe). The wider issue if using other ham transceivers that only operate in the ham bands. My K3 has the EXREF board for referencing to an external 10-MHz source. This enables 0.1 ppm accuracy. A 10-MHz LO is 1-Hz stabile. 73, Ed - KL7UW At 03:58 PM 9/10/2013, Jim Miller wrote: >It would really be nice if K3 would support 80m as a transverter frequency. >If it did it would enable 3.5-4.0Mhz to reflect the full 500Khz from a low >band transverter. > >jim ab3cv 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com "Kits made by KL7UW" ___ 600MRG mailing list 600...@w7ekb.com http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com __ 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
