OK, this is application of above antenna. Notice the radials drooping over
front of wings and one of the rear radials on right. |
Band fixed by red center coil, with coils for 40m, 20m, 17m. Tuned by bottom
coil. This is for use with qrp 40m rig. This one made several qsos back to
Shreveport from Dayton Hamvention and packs into a 12 inch bag. |
Of tuners
for tweaking.... |
Z-match - tunes a wide range of antennas |
This version built with toroid. |
This QRP small tuner will tune end-fed half-wave antennas for 40m, 30m, and 20m.
|
In addition there is a switch to bypass the L-match (toroid and trimmer cap)
and output to another BNC. An SWR bridge with LED may be used in all four
of the above modes.
|
Random wire tuner. Inductor is coil around ferrite rod with sliding contact.
Tuning LED is to right of SO-239. |
