Re: [Elecraft] High Stability Reference Oscillator
On 10M {28 MHz} a 0.5 PPM can have +/-14 Hz error while a 5 PPM can have a +/- 140 Hz error. It is the frequency in MHz x the PPM which is Parts Per Million. My article scheduled for publication in September QST discusses the frequency read out of today's radios and their likely inaccuracy. 73 Bob, K4TAX On 8/2/2015 4:41 PM, David Ahrendts wrote: Pros: what is the operating advantage of the KTCXO3-1 1 PPM reference oscillator over the standard ‘ol bargain basement 5 PPM ref osc supplied with my lovely new K3S? David Ahrendts davidahren...@me.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 Message delivered to rmcg...@blomand.net __ 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
Re: [Elecraft] High Stability Reference Oscillator
David, Greater temperature stability. If you are not operating data modes like JT65 which has long term transmit times, and your shack is at a reasonable stable temperature, one should be as good as the other. 73, Don W3FPR On 8/2/2015 5:41 PM, David Ahrendts wrote: Pros: what is the operating advantage of the KTCXO3-1 1 PPM reference oscillator over the standard ‘ol bargain basement 5 PPM ref osc supplied with my lovely new K3S? David Ahrendts davidahren...@me.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 Message delivered to w3...@embarqmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] High Stability Reference Oscillator
If it bothers you if your K3S drift just a tiny bit warming up, or it bothers you if your 10MHz WWV is not absolutely dead on all the time, or if you are operating 6 and 2 meters, you fix that with the KTCXO3-1, or get the stuff to sync your K3S with GPS derived 10 MHz. From quite some number of posts, in the end a lot of people want their K3 absolutely dead on all the time. It just bothers them if it's not. Operating advantage? None on the lower bands. VHF frequencies are another matter. I bought the KTCXO3-1 because I previously finally installed the equivalent in my FT1000MP. In the end, it's druthers or a requirement for a specialized operating mode. 73, Guy K2AV On Sun, Aug 2, 2015 at 5:41 PM, David Ahrendts davidahren...@me.com wrote: Pros: what is the operating advantage of the KTCXO3-1 1 PPM reference oscillator over the standard ‘ol bargain basement 5 PPM ref osc supplied with my lovely new K3S? David Ahrendts davidahren...@me.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 Message delivered to k2av@gmail.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 Message delivered to arch...@mail-archive.com