At 04:31 PM 2/10/01 GMT, you wrote:
Thanks for the screen shot. I found it very helpfull. It is amazing
what you can hear (see) with that little antenna.
I'm happy that you liked the screen shot. Yes it is amazing that the 1
meter whip can hear what it hears.
I got up at 0400 and switched on the transmitter. After making sure
that it was transmitting correctly I went back to bed.
When I got up at 0700 I found that the transmitter was not working. I
checked the 70v PSU and, judging by its temperature, the transmitter
had been off for a while.
Well that explains why the signal suddenly stopped. I see no other traces
of your signal in my captures. It appears that the transmitter quit before
finishing the first cycle. But what I did receive was so very clear as
you've seen for yourself.
I had the new DDS exciter on for the first time (in a new diecast box
with reverse supply protect etc). This project was only just
completed in time to go on the air. This unit runs off a seperate
chargable battery. What I didn't realise was the DDS takes about 3
times as much current as the original crystal mixer exciter. The
transmitter had been on from 2100 until 0030 and then from 0400 until
the battery died.
I will try again tonight from 2300 until bed time and then from 0400.
I will try to give a more exact frequency when I have calibrated the DDS unit
Very good. I'll be listening/watching. Or I should say, ARGO and SNAGIT
will be watching! I am like a child on Christmas morning that gets up
early to unwrap his presents. I jump out of bed to look at my nights worth
of screen captures!
73 and good job,
Jon W1JHJ
Jon
W1JHJ
Plymouth, MA
FN41qw
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