SSB/AM MODE TRANSMISSION
ADVICE:
ALC meter deflection may be caused by excessive drive power, but also by reflected power detected in the an- tenna system. If the impedance presented to the trans- ceiver is different from 50 Ohms, ALC meter action may be observed that is not related to the proper set- ting of the [MIC] (gain) knob. Therefore, we recom- mend that you make [MIC] knob adjustments into a dummy load or antenna system presenting an imped- ance very close to 50 Ohms.
Rotate the [RF PWR] knob to set the desired power output. Clockwise rotation of the [RF PWR] knob will
increase the power. The adjustment range is between 5 Watts and 100 Watts, and you should always use the minimum power necessary for maintaining reliable communications.
The analog PO meter indicates the average power out- put level. SSB transmit average talk power is normally 10% to 50% of the peak power output. Voice charac- teristics, microphone qualities, parametric equalizer and compression settings affect actual talk power out- put.
When performing tests (such as the setup of the [MIC] or [RF PWR] knobs), be sure to check the frequency before transmitting, so as to avoid interference to oth- ers who may already be using the frequency.
Four techniques for exercising Transmit/Receive con- trol are provided on the
Pressing the microphone’s PTT switch will engage the transmitter.
The rear panel PTT jack may be connected to a foot switch or other manual switching device in order to engage the transmitter.
Pressing the front panel [MOX] button will lock the transmitter on. Press the [MOX] button again to return to receive.
The VOX (Voice Operated Xmit) circuit will en- gage the transmitter automatically when you speak into the microphone. For details of VOX opera- tion, see page 74.
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