Hello PHK,
Thanks for the tips. I have not done this yet, so I am creeping along.
I also have a 33120A with the the option 001 for using an external
reference.
Sounds like the arbitrary signal capability is the way to go,
If I can not find an appropriate 2100/2100F output.
Thanks Stan, W1LE Cape Cod
On 5/1/2012 12:02 PM, Poul-Henning Kamp wrote:
In message<4fa006e8.5040...@verizon.net>, "Stan, W1LE" writes:
I will use a HP-3336C with the station 10 MHz (GPS/DO) reference.
Typo: trigger should really be 11.148272 Hz instead of KHz !
You need a really amazing stable and noise-free trigger to lock
onto a 5.5Hz (see below) sine at the required level of stability
(~2usec).
I used my HP33120A once, but its square output is made with a
comparator on the sine wave, and has pretty bad jitter.
Switching to saw-tooth solved that, defining my own arbitrary
square-wave was even better, not sure why.
You want 1/(2*.089700) = 5.574136 Hz, otherwise every other
loran-c pulse will cancel out due to the A/B coding polarity.
If you don't have a counter-based signal generator, consider stealing
a GRI or FRI-rate signal from one of your loran-C receivers, I belive
the AUSTRON 2000/2100 offers it on a BNC at the backside.
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