With this recent discussion around frequency references, some on this reflector may be interested in this GPS-locked agile frequency reference module that will cost you less than $30 delivered: https://sites.google.com/site/g4zfqradio/u-blox_neo-6-7
The output is programable from 1Hz up to 10MHz. You can't use it directly to drove the 10MHz reference input of the K3; if the selected output frequency doesn't divide evenly into 48MHz, then you will get some short-term jitter in the output that you would need to clean up with some sort of TXCO PLL type of arrangement. But it is great for calibrating your frequency counter (the long gating time averages out any short term jitter), and the output is rock-steady and accurate source to zero-beat your radio against if you select an output like eg. 1, 3, 4, 6 or 8MHz. Output is a square wave, so harmonics could also be used. 73, Matt VK2RQ ______________________________________________________________ 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]
