The band switch S2 clockwise in the end (see the neutral place of above Figure, when L1 is through),
duel capacitor C5 also clockwise in the end (in this case C5 is in the smallest capacity). Connect a 50 ohm,
no less than 5 watts of power dummy load in the Wire and GND terminals, and tuneback S1 to SWR position.
ConnectTRX end with radio, which is tuned in mode CW, with probably about 5 watts of transmit power
and radio frequency at 20m band (or 15m, 40m band can be ok), so that the radio sends a continuous
CW signal. Adjusting the adjustable capacitor C1, making the SWR meter shows zero or minimal degree,
tuning back S1 to PWR position. At this time, meter can be adjusted between 0dB to -1dB.
Length selection of the long antenna: to get good results, longer antenna should be chosen. But
the equipment temporarily erected in the wild should be shorter in the case of convenience, with the
consideration of the length of the antenna which should not be close to the half wavelength and the
integer multiple of the half wavelength of the used frequencies. An eight-meter antenna is chosen for
7 MHz and all shortwave bands above7 MHz amateur brands. If it is used for over 14 MHz , brands,
the antenna should be about 3-4 meters long.
GND: At least one GND should be used at the length of a quarter of the minimum operating wavelength.
If it is possible, each brand should at least have one GND at the length of a quarter of the wavelength of
the ground. It is ok to put the GND on the floor.
Adjustment: After connecting the radio, antenna tuner, and antenna, one can adjust the long wire antenna
tuner to tune. Firstly, the work and tuning switch of long wire antenna tuner SW5 should be dialed to the
tuning position, and radio tuned to work brand by pressing telegraph key or press the PTT in FM mode,
making the output power of about 3-5 watts. S1 switch is tuned to the SWR position, and the position of
C5 is adjusted to find the minimum point of the VSWR by changing the position of S2
