[Lowfer] Copying LEK perfectly

Bill de Carle [email protected]
Sat, 31 Jan 2004 22:46:52 -0500


At 09:15 PM 1/31/2004 -0600, Lyle wrote:
>LEK is using Bill de Carle's latest Africam software to send BPSK in MS1000,
>ET1 mode on 184.700 kHz. Supposedly the timing is locked to a GPS standard.
>Still don't have a GPS-disciplined frequency reference here, but I re-zeroed
>the oven controlled oscillator against WWV today and it should be within 0.1
>ppm.

Fantastic, Lyle!
I was seeing enough of LEK LEK in straight mode to know you were sending 4
characters - so I went to GRAB 4:5 and voila, perfect copy.  That's without
any sync-ing, or fiddling around trying to find the right frame start bit.
GPS did it all by itself.  I haven't tried playing with the Rx delay - and
we know there will be some delay to be dialed in for optimum copy - but it's
running beautifully now.  Possibly the static crashes were taking out enough
bits to cause the errors in non-grab mode and the GRAB made enough difference
to get the perfect copy.

I have trace running so let's see whether I can copy you through tomorrow.
I feel almost as elated as those guys on the Mars Explorer team, hi!

Thanks immensely for the test, it made my day.
73 de Bill VE2IQ