[hpsdr] 10Mhz reference

[K4KV]

Hello,

I have designed my own GPSDO using a Jupiter module with a 10khz 
output.  My reference

TXCO has a feedback input and I divide that down to 10khz as well and 
compare the Jupiter

to the TXCO 10khz output, run them through an exclusive OR gate then 
filter for the feedback

voltage.

Using a scope it appears they are perfectly locked.  It also appears the 
NMEA streams out of the

Jupiter show quite a bit of data, I am assuming a lock to the satellites.

However, when attached the Hermes, the 10Mhz reference clock shows WWV 
off by 50-70Hz.

My question is: Do you need to also adjust the calibration inside PSDR?  
I was assuming the cal corr.

factor should be the default of zero correction...

73

Glen K4KV

ps - the 10Mhz output at J20 on the Hermes is 800mv, I hope that is enough!