Tx Operation - Tokyo Hy-Power HL-350VDX User Manual

TX OPERATION

(1) Before keying the radio, set the switches on the front and rear panel as
follows:
‡ @ POWER (Power Switch)
‡ A RX AMP (RX Pre-Amp Switch)
‡ B METER SELECT SWITCH
‡ C POWER LEVEL
(Output Power Select Switch)
‡ D MODE (Mode Select Switch)
(2) Set RF DRIVE (Input Power Level Select Switch on rear panel) to the
maximum power of the transceiver to be used.
Set to one of 10W/25W/50W ranges.
(3) Turn ON POWER Switch of the HL-350V
multi-meter will light.
(4) Read the VCC meter scale.
Make sure that the meter deflection is on the thickened zone (around
13.8VDC).
(5) Key the transceiver. TX Lamp on the front panel will light when the linear
amplifier (TX) is working.
(6) If needed, adjust the RF output power level knob of the transceiver in order
not to overdrive the linear amp.
(7) During the transmission, monitor RF OUT (TX Power) as well as SWR and
VCC (Power Line Voltage) regularly by selecting the Multi-meter Switch, to
see if HL-350V
(8) Press RX AMP Switch 12 accordingly when the received signal is too weak
or too strong to be copied.
(9) To work the transceiver alone on barefoot, the connection of all the coaxial
cables to and from the amplifier may be left as they are.
Just turn OFF POWER SWITCH 1 .
Then, the output power of the transceiver and the signal being received will
by-pass the amplifier.
If the RX Pre-Amp alone is needed, turn ON RX AMP Switch 12 while
POWER Switch 1 is kept turned OFF.
is working properly.
DX
→ OFF
→ OFF
→ VCC
→ HI
→ either FM or SSB
(set to the mode to be used)
. Then, the lamp of the
DX
12