Re: [time-nuts] GPS Modulation and 10 MHz Delay Lock (Jim Lux) (Jim Lux)

2012-10-03 Thread johncroos
for Jim Lux -- Thanks for the comments - Yes, if the receiver is linear (e.g. say you do a sliding code correlator and slide until you get the peak, with the correlator using a multiplier)... That is how the system I did worked. It could defeat an on-frequency jammer that was 20 db

Re: [time-nuts] GPS Modulation and 10 MHz Delay Lock (Jim Lux)

2012-10-02 Thread johncroos
Hi Jim - Thanks for the update on the modern GPS receivers. I was aware that the modern ones do not have a classical analog tracking loop, much less a bunch of them. However it is a useful concept for purposes of explanation that you do not need the 1 pps to lock up the 10 MHz VCXO - which