Hi Gary, there is several options how to solve the 10MHz ref. source for your K3. Some of them has been mentioned over here already. In all cases you can find Pros and Cons... In fact you need to know what is your own prefference > precision, simplicity, consumption, price etc.
Try to look for some information about the solution using FE-5680A Rubidium standard here: http://ok1rp.blogspot.ch/2014/07/fe-5680a-rubidium-standard.html then you can consider the pluses and minuses and comapre it with another solutions. The FE-5680A units are still available on eBay (my own I found for $69 incl. shipping years ago) now at around $100 I guess but these units are heavily used in BTS stations for long time (Base Transceiver Station in Base Station S(ubs)ystem of GSM cellular network) These units are retired based on pre-calculated life-time and now are available as surplus parts on eBay. It not means that it will not work but some units will make good job for us for several year and some unit will fail in short term unfortunately. It is hard to estimate or anticipate. My unit is purchased on eBay in 2013 and work perfectly but I can recommend to ask seller how old the offered unit is and focuse on as young as possible. Another "Cons" for somebody (not my case) can be to consuption as these units (depends to type) needs 15V to 18V @ 1.8A peak and 0.7A steady-state. Even although all what I said can sounds bad I can recommend it as more or less cheap and good solution. More informations you can find on Doug's, VK3UM pages (RIP) http://www.vk3um.com/Rubidium%20Standard.html Hope it helps, 73 - Petr, OK1RP ----- http://ok1rp.blogspot.com -- View this message in context: http://elecraft.365791.n2.nabble.com/10-MHz-external-reference-tp7615048p7615068.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
