Why would I need the TCXO-3 instead of the TCXO-1 when using the K3EXREF
if the accuracy and stability is provided by the EXREF? Am I overlooking
something here?
Tnx & 73, Olli - DH8BQA
Contest, DX & radio projects: http://www.dh8bqa.de
Am 11.03.2016 um 22:30 schrieb Edward R Cole:
First one needs to realize that the TCXO establishes the basic
stability, so choosing the TCXO-3 over the TCXO-1 will provide better
stability and accuracy (these are two different things). I bought the
TCXO-3 with my initial K3/10 purchase so the rest of what I say is
with the better TCXO-3 installed (if frequency is important then that
is first thing I recommend updating).
Mostly, I use 28-MHz as a testing frequency since it is my VHF
transverter IF. On 28-MHz with only the TCXO-3, I see 14-Hz
inaccuracy. This 14/28000000 = 0.5 ppm (I think this is better than
Elecraft specs the TCXO-3). Adding the EXREF I see 2-Hz which is
"about" 0.1ppm. Measurements on 50-MHz are proportional. I see 3-4
Hz accuracy using the EXREF.
______________________________________________________________
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]
