826) CW Forever
What is ZUT? It's the Coast Guard CW Operators
Association. For more info click
The U-100 Project
Over a period of time, a ham named Andy (VK4FHAW) have been communicating
and he has come up with a new control system using the parallel
port to control his antennas. This is the kind of thing I've been
hoping for to happen. He has given me permission to publish his
email and this one sums it up quite nicely. It also contains a link
to his You tube video which is quite nice. Thanks Andy, for being
a newcomer to this end of ham radio and doing an excellent job.
If you would like to contact him for more info, below is his email
Just wanted to give you an update how things are going. At this
stage the system is fully operational with Azimuth and Elevation
control with a parallel port relay interface, receiving the data
from either nova or HRD.
I had several good leo contacts already, funny enough mainly on
the SSB birds, AO07, 29 and 52. Some FM on 51, although its QRP
transmitter only, and that only sporadic active over Australia -
so Oscar 7 Mode B is much more fun, considering a good pass lasts
for about 22 minutes. I've read that they want to activate SO-67
over Australia in the second half of July - would be interesting
to see how this one works.
I've put a little youtube clip up which shows the system :
I made a few changes to the software (other then the parallel port
stuff), and changed the layout a bit. Let me know if you want to
have the source code in its current form. I am quite impressed how
accurate it actually is. I need to 0 the az and el values about
once every 10 days, and only did 1 full calibration run so far.
Considering the beam angle of the antennas I am using is 30 degrees
+, a 5 degree accuracy is more then sufficient.
Thank you so much again ! Without all your hard work that wouldn't
have been possible.
I want to build myself now a higher gain UHF and VHF antennas (with
plans from http://www.yu7ef.com/) to improve my SNR. Also thinking
about a mast mounted pre-amp, but not sure if its worth it (FT 847
has a pretty good low noise pre-amp build in).
The Basic Stamp Controller
Please go to the U100Info link at the left.
There is no charge for the program. The program works with either
Nova or Ham Radio Deluxe.
Click to enlarge
Checkout the Alliance U-100 rotator page
on the left. My satellite tracking program for the U-100 utilizes
Nova for Windows.
Just a couple from a very long time ago.