OPERATION
RECEIVING
MODE SELECTION
Press the [MODE] button (to the left of the main tuning knob) corresponding to the mode you wish to operate - for now, we sug- gest an SSB mode: USB if you have selected a band above 10 MHz, or LSB otherwise. The green LED in each button indicates the selected band, and a pair of LEDs within the bandwidth panel (to the left of the mode but- tons) indicate which IF filter pair is currently selected for that mode.
CW and RTTY have “reverse” modes 
that are selected by pressing their button 
twice (see the box at the right), and AM Synchronous tuning is activated in the same manner. Also, Packet operation can be toggled between LSB and FM (for 29 MHz operation) in the same way. These special fea- tures are covered later.
Additionally, notice that the bargraph meter format changes to the appropriate tuning display for the se- lected mode (covered later).
If you have selected an SSB mode, the red LED in the [NOR] button should be lit. If not, press [NOR] key. This bandwidth provides good fidelity for SSB recep- tion and should be used unless QRM from stations on adjacent frequencies becomes a problem (as described later).
Adjust the AF GAIN knob for comfortable volume on signals or noise in the loudspeaker or head- phones. The small SUB AF knob (to the under the AF GAIN knob) is used with the Sub VFO opera- tion and is explained in greater detail later.
Special Note for CW Mode
(Reverse CW sideband)
When you switch modes between CW and USB, you may notice that the frequency of received sig- nal stays the same (even though the panel fre- quency may change slightly). Also notice that the pitch of a received signal decreases as you in- crease the dial frequency.
However, switching to LSB from CW normally re- quires retuning the desired station. This can be es- pecially inconvenient if you enjoy working the lower HF bands (40 meters and below) where LSB mode is used.
To eliminate the need for retuning in this situation, you may switch the receiver CW carrier oscillator injection to the reverse side (LSB). When you press [CW] button, you should notice that the green LED in the USB mode button blinks for a second or two. This informs you of the default carrier offset (up- per) for CW. To switch to lower injection side, sim- ply press the [CW] button again; you will see the displayed frequency shift and the LSB LED will blink.
When using the reverse sideband (LSB) for CW reception, you can freely switch between LSB and CW without having to retune a station. Note that in LSB and CW modes the received signal pitch now increases as you increase the dial frequency.
To return the receiver to the default (upper) side- band, simply press [CW] again.
Operating Hint - An added benefit from this fea- ture is QRM rejection. If you have interference on a CW station that the IF SHIFT does not easily eliminate, you can try switching to the reverse side- band, retuning the signal, and trying the IF SHIFT again.
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