[Elecraft] 10 MHz external reference

[HankP]

As a casual observer of this thread - does the oscillator have to be
precisely 10 mhz to a zillion decimal places  OR does it just need 
to be close to 10 mhz and verrrrrryyyyy stable ? 

Years ago hams used to build 10 mhz xtal 
oscillators/buffers  - put them in  a thermos bottle - dig a post hole
and bury the thing about 4 feet deep - it was pretty stable
just xtal aging and needed lo noise stable DC. 

Hank K7HP 
 

----- Original Message -----
Am 09.03.2016 um 18:37 schrieb Gary Smith:
>> What external 10-MHz reference signal source might I find get that is
>> not terribly expensive that will do the proper job and allow me to
>> get this working?

You can look for a GPS disciplined oscillator (GPSDO), an FE-5680 Rubidium 
based oscillator, or look for some of the lesser expensive GPS receiver 
modules that have 10MHz outputs.