GAP SUPER C Инструкции по установке и сборке - Страница 16

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the 2:1 frequency limits. The 2:1 bandwidth on 20 meters should be 250 kHz minimum. Find the center of the

band.

4) If you desire to move the center of a band you can by loosening the stainless steel hose clamp on the Super

"C" mast and changing the position of the basket relative to the collector grid. Raising the basket 1" should increase

the center frequency approximately 70 KHZ. To lower the frequency lower the basket. Yes lower the basket!

Continue the measurement process on 17m, 15m, 12m and 10 meters remember to switch both the selector knob

on the Super "C" switch box as well as your transceiver.

5) Using an antenna tuner when the vswr is less than 2:1 is permitted. Remember an antenna tuner does not tune

the antenna but stops the reflected R.F. from reaching the transmitter and causing a power reduction in the

transmitter's output.

Antenna Characteristics

Operating Bands - 20m, 17m,15m, 12m and 10

Bandwidth @ 2:1 - 250 kHz 20 meters >1.4 mHz 10 meters

Full band 17,15,12

Antenna Type - E field dominant vertically polarized

Radials - none

Size - 1/6 of ¼ wave vertical

Switch line radiation - 20db

Signal Performance - exceeds typical full size ¼ vertical

Feed line radiation - 20db

Earth loss - Approaching zero on the ground

Allowance Input Power - 100 watts max. AM-FM-RTTY

Elevation Angle - less than conventional vertical

Efficiency - > 90%

200 watts SSB with minimal compression