[Elecraft] K3S new synthesizer query

2016-06-28 Thread brian
Please correct me if I am wrong. I believe the heart of the new synthesizer is a SI-570. Great phase noise but the output frequency is quite sensitive to temperature changes. It has been observed that the corrections to bring the synthesizer in step with the master oscillator happen over lon

Re: [Elecraft] K3S new synthesizer query

2016-06-28 Thread Don Wilhelm
Brian, The main frequency determining element in the K3/K3S is the TCXO and not the SI-570. Are you looking only at the native SI-570 thermal data, or are you finding from our measurements that the SI-570 in the new synth boards is not following the stability of the TCXO? The SI-570 should

Re: [Elecraft] K3S new synthesizer query

2016-06-29 Thread Roger via Elecraft
Brian, My K3 shows the same behavior. I have no solution to the problem. -- View this message in context: http://elecraft.365791.n2.nabble.com/K3S-new-synthesizer-query-tp7619407p7619416.html Sent from the Elecraft mailing list archive at Nabble.com. ___

Re: [Elecraft] K3S new synthesizer query

2016-06-30 Thread Robert Wood
rom: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of brian Sent: Tuesday, June 28, 2016 9:09 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3S new synthesizer query Please correct me if I am wrong. I believe the heart of the new synthesizer is a SI-570. Great phase noise b

Re: [Elecraft] K3S new synthesizer query

2016-07-02 Thread Roger via Elecraft
My K3 has the TCXO 1% 73, Roger -- View this message in context: http://elecraft.365791.n2.nabble.com/K3S-new-synthesizer-query-tp7619407p7619514.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing lis