Howdy DXers,
I arrived back in town this week and found myself behind on
everything. One thing that I knew we should do, is get our club
station working again on the upper bands. I wanted to work FT8WW
for the club before he leaves Crozet.
With the help ,of Rich WB4EHG, we quickly put a team together to
correct the problem on the TH-11 at the club station. The team
consisted of Rich WB4EHG, Rich W4RQ, Marty KQ4CKB and myself. We
arrived at the hospital around 10:00 AM Saturday morning. I don't
know how I made it! I went to bed early (for me!) around 12
midnight. I had a young kid screaming, at the top of his lungs
that woke me up at 2:00. Finally got back to sleep and it started
again a 3:20 AM. It was on and off all night and I got about 3
hours of sleep. I finally got up around 8:30. later than I wanted
since I wanted to be there around 9:00. No time to eat.
We were there to get a job done. After a brief planning session
and a bottle of water, up the tower I went. We had suspected the
problem was the connector at the balun. It looked really bad when
I removed it. It appeared the the center conductor had never been
soldered. I replaced it and plugged the new connector into the
dummy load. I just knew that it had to be the problem. When the
team keyed the rig... the SWR was still terrible! ugh!
With the help of the Rich and Rich team, they did some time domain
research on the cable and it appeared to be shorted about 3/4 of
the way to the antenna. Back outside I found a barrel connector
joint that appeared to be very well sealed from the weather. I
started stripping the coax seal and tape and as soon as I removed
the tape it smelled burnt. The barrel and one of the connectors
was welded together. Thank goodness I brought some barrel
connectors and PL-259's. I put a new PL-259 on the cable end and
inserted a new barrel. We plugged it into the dummy load and
thank goodness all was GOOD! Back up the tower I went and plugged
it into the antenna for a final test. All was good! After about
an hour of dressing the cables, the work was finally done around
3:00 PM. We all decided to head home.
The bottom line is that the TH-11 is healthy and working just fine
now after being intermittent for 2 years.
I appreciate the teams help in getting this done.
I'm tired and going to bed. I will send out episode 2 and the
meeting invite in the morning!
Very 73,
Randy N4QV