Hi I checked with Garmin on this and they're standing by their 1 microsecond spec. They suggest using the GPS25-LVS (which apparently has a mode where you can specify that the location is fixed and l
...............I propose to use GPS ..........: The only real requirement is a GPS receiver with a 1-PPS output good to within a few microseconds of UTC. Be careful - don't confuse relative with abs
Why not use the signal from one of the LF time clocks, and correct by offsetting the distance. That assumes there is available coverage from a terrestrial transmitter with time information. GPS is g
The GPS25 module - one of those recommended by TAPR for the "GPS Disciplined Frequency Standard" - is specified as having a 1 PPS output accurate to within 1 microsecond of UTC. Additionally, it is s
...............I propose to use GPS ..........: The only real requirement is a GPS receiver with a 1-PPS output good to within a few microseconds of UTC. Be careful - don't confuse relative with abs
This would seem to need much less engineering than processing the output of a GPS. Stewart G3YSX I can detect 60KHz from WWVB, but useless to lock anything ... so ... I use a Furuno OEM module, that
Why not use the signal from one of the LF time clocks, and correct by offsetting the distance. Since this is being used for LF transmission, the communications system must be propagation phase change
...............I propose to use GPS ..........: The only real requirement is a GPS receiver with a 1-PPS output good to within a few microseconds of UTC. Be careful - don't confuse relative with abs
Hello everyone, It has long been recognized that establishing bit-sync and frame-sync is difficult with current implementations of BPSK whenever there is marginal copy and the signal only comes up ou
