Just discovered when trying to copy a strong CW signal the frequency
seems to offset. I can see the signal on my P3 at say 7024.000 but I hear the station the strongest at 7025.000. This occurs with either my 1.0khz or 400hz filter. Is there some frequency offset that I may set in error? Thanks. Gene, W2BXR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Check whether you may have accidentally set the RIT (Receive Incremental
Tuning) or XIT (Xmit Incremental Tuning). That happens to me sometimes. 73 de, Ian, KM4IK On Jul 29, 2017 9:14 PM, "Gene O" <[hidden email]> wrote: > Just discovered when trying to copy a strong CW signal the frequency seems > to offset. I can see the signal on my P3 at say 7024.000 but I hear the > station the strongest at 7025.000. This occurs with either my 1.0khz or > 400hz filter. > > Is there some frequency offset that I may set in error? > > Thanks. Gene, W2BXR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Also check the settings of your side tone frequency. If it is different than you tune, there will be an error.
Bob, K4TAX Sent from my iPhone > On Jul 29, 2017, at 9:32 PM, Ian Kahn <[hidden email]> wrote: > > Check whether you may have accidentally set the RIT (Receive Incremental > Tuning) or XIT (Xmit Incremental Tuning). That happens to me sometimes. > > 73 de, > > Ian, KM4IK > >> On Jul 29, 2017 9:14 PM, "Gene O" <[hidden email]> wrote: >> >> Just discovered when trying to copy a strong CW signal the frequency seems >> to offset. I can see the signal on my P3 at say 7024.000 but I hear the >> station the strongest at 7025.000. This occurs with either my 1.0khz or >> 400hz filter. >> >> Is there some frequency offset that I may set in error? >> >> Thanks. Gene, W2BXR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
In reply to this post by Gene O
You might also want to check the frequency calibration of the P3 (page 31 in the P3 manual). I happen to notice while checking the K3S frequency against WWV and going through K3S calibration, the P3 was off about 250hz (with 600hz sidetone).
Gene N9TF > On July 29, 2017 at 8:10 PM Gene O <[hidden email]> wrote: > > > Just discovered when trying to copy a strong CW signal the frequency > seems to offset. I can see the signal on my P3 at say 7024.000 but I > hear the station the strongest at 7025.000. This occurs with either my > 1.0khz or 400hz filter. > > Is there some frequency offset that I may set in error? > > Thanks. Gene, W2BXR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
There is a REF CAL adjustment in the P3 menu to make the P3 agree with
the K3/K3S. I have noticed that my P3 seems to drift a bit when it is first turned, so probably you should wait a while before adjusting it. The offset is only noticeable at smaller span settings. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ On 30 Jul 2017 06:17, EUGENE GABRY wrote: > You might also want to check the frequency calibration of the P3 (page 31 in the P3 manual). I happen to notice while checking the K3S frequency against WWV and going through K3S calibration, the P3 was off about 250hz (with 600hz sidetone). > > Gene > N9TF > >> On July 29, 2017 at 8:10 PM Gene O <[hidden email]> wrote: >> >> >> Just discovered when trying to copy a strong CW signal the frequency >> seems to offset. I can see the signal on my P3 at say 7024.000 but I >> hear the station the strongest at 7025.000. This occurs with either my >> 1.0khz or 400hz filter. >> >> Is there some frequency offset that I may set in error? >> >> Thanks. Gene, W2BXR Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
I've found that my K3s takes about 35 minutes to become essentially
stable (TXCO).... P3 stabilizes a bit faster. IMHO it is important to CAL both pieces of equipment under the same conditions at the same time or as close to it as you can... Also important IMO to not have the HVAC cycling on and off while you are doing the REF CALs... 73, ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 7/29/2017 10:22 PM, Victor Rosenthal 4X6GP wrote: > There is a REF CAL adjustment in the P3 menu to make the P3 agree with > the K3/K3S. I have noticed that my P3 seems to drift a bit when it is > first turned, so probably you should wait a while before adjusting it. > The offset is only noticeable at smaller span settings. > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > http://www.qsl.net/k2vco/ > On 30 Jul 2017 06:17, EUGENE GABRY wrote: >> You might also want to check the frequency calibration of the P3 >> (page 31 in the P3 manual). I happen to notice while checking the K3S >> frequency against WWV and going through K3S calibration, the P3 was >> off about 250hz (with 600hz sidetone). >> >> Gene >> N9TF >> >>> On July 29, 2017 at 8:10 PM Gene O <[hidden email]> wrote: >>> >>> >>> Just discovered when trying to copy a strong CW signal the frequency >>> seems to offset. I can see the signal on my P3 at say 7024.000 but I >>> hear the station the strongest at 7025.000. This occurs with either my >>> 1.0khz or 400hz filter. >>> >>> Is there some frequency offset that I may set in error? >>> >>> Thanks. Gene, W2BXR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
In reply to this post by Bob McGraw - K4TAX
Calibrate the P3
Sent from my iPhone ...nr4c. bill > On Jul 29, 2017, at 10:51 PM, Bob McGraw K4TAX <[hidden email]> wrote: > > Also check the settings of your side tone frequency. If it is different than you tune, there will be an error. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jul 29, 2017, at 9:32 PM, Ian Kahn <[hidden email]> wrote: >> >> Check whether you may have accidentally set the RIT (Receive Incremental >> Tuning) or XIT (Xmit Incremental Tuning). That happens to me sometimes. >> >> 73 de, >> >> Ian, KM4IK >> >>> On Jul 29, 2017 9:14 PM, "Gene O" <[hidden email]> wrote: >>> >>> Just discovered when trying to copy a strong CW signal the frequency seems >>> to offset. I can see the signal on my P3 at say 7024.000 but I hear the >>> station the strongest at 7025.000. This occurs with either my 1.0khz or >>> 400hz filter. >>> >>> Is there some frequency offset that I may set in error? >>> >>> Thanks. Gene, W2BXR >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[hidden email] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to [hidden email] >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Free forum by Nabble | Edit this page |