Another portable test of the BLT+ tuner
|KX3 operating on internal battery. What a fantastic portable rig.|
I took the BLT+ balanced line tuner out to the Excalibur antenna site to try it out on the doublet antenna that we put up last Saturday. This was the first test of that antenna (40m and 80m using a common feedpoint).
|BLT+ connected to open wire line (under the gloves) going to ta 40m Doublet at 65ft|
I used the BLT+ to tune the 40m/80m doublet. Balanced line antennas perform better with a tuner designed for balanced line and this was a good test for both the tuner and the new antenna.
|Portable shack, courtesy of three plastic chairs|
I quickly matched the doublet using the BLT+ using the lowest impedance setting which is also the most efficient. I was glad to see that the BLT SWR LED indicator is bright enough to be seen in direct sunlight. I was wondering about that but you can definitely tell when it dims even in direct sunlight.
AA4OO sitting back and listening to the QSO
The Doublet's feed line has not been brought to the shack yet so I was just sitting under the antenna. The open feed line is running along the ground for a bit which certainly didn't help the signal but we haven't installed the posts to carry the feed line over to the shack and I was too lazy to move the chairs far enough away to keep the feed line in the air.
In the foreground is some saw-grass common on the NC coast. I'm not sure why it's growing this far inland.
|Portable shack at the Excalibur antenna site... The Doublet is 65 feet above my head|
|Waiting my turn in the QSO... holding the Palm Single Paddle. BLT+ tuner in the chair to the right|