Hello Jon
Copied what appears to be both G3LDO and M0BMU at 0424 today. BMU's signal
was there for quite a while and is ID'ed by only partial character. LDO
came out of no where and I have a lean screen shot of G 3 L then a partial
D which actually looks like an N. It looked like LDO shut the transmitter
off before the ID cycle finished.
Thanks for the screen shot. I found it very helpfull. It is amazing
what you can hear (see) with that little antenna.
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.
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.
The battery is well and truly charged!
--
Regards, Peter, G3LDO
<[email protected]>
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