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SWEEP in Chapter 2). The real-time
spectrum sweep on the main receiver can
be turned on and off.
USER 1 and USER 2 are duplicates of the
front panel USER 1 and USER 2 buttons
(see (21) USER 1 and USER 2 in Chapter
2). These allow retrieval of the profile
memories that are stored in USER 1 and
USER 2.
Send 1, Send 2, and Send 3 are duplicates
of the SEND 1, SEND 2 and SEND 3
buttons found on the front of the ORION
(see (20) SEND 1, SEND 2, SEND 3 in
chapter 2). They are used for sending
memory information stored in either the CW
keyer or voice memories.
VFO A Ent and VFO B Ent allow direct
frequency entry off the keypad for either
VFO A or VFO B.
The Rem Pod Enter setting determines
where a band change from the keypad is
sent (VFO A or VFO B). The ten button
keypad on the 302R accessory duplicates
the band change keypad on the ORION II
unless a function button has first been
pushed for direct frequency entry. Push "9"
to change to 40m, "7" to change to 160m,
etc. Note that the 302R buttons are not
arranged in the same numerical order as the
keypad on the ORION II; it is the location of
the button in the matrix rather than the
number on the button on the 302R that
determines to what band the radio is
changed.
Menu Delay is used to set the encoder
tuning rates and button responses while
using the menus.
Backlight is used to determine the
brightness of screen characters. High, Med,
Low are available choices.
VFO-A Enc Rate and VFO-B Enc Rate
have settings of "fast" and "slow". Unlike
tuning STEP as set via the STEP button, the
Rate controls are used to determine how
many steps per revolution of the two main
tuning knobs are made. The "fast" rate is 4x
the "slow" tuning rate
Like the main tuning knob rates, CW RIT
Rate and SSB RIT Rate are used to vary
the rate, but not the step size, of the RIT
encoder. The "fast" rate is 4x the "slow"
tuning rate.
566 manual
Part #74410
Printed in USA
If the optional model 302R encoder/keypad
is in use, POD Enc Rate can be used to
control the tuning knob rate. The "fast" rate
is 4x the "slow" tuning rate.
LCD Display selects color schemes for the
screen. Turn the MULTI knob to select
different pre-set color setups.
FSK Tx Data is used to to determine
whether the MARK tone in FSK operation is
on the high tone (2295 Hz) or low tone
(2125 Hz). The standard is for FSK to use
the low tone for MARK. FSK direct to the
radio from a computer sound card (no TNC)
should have this set to 'high' so tones will
not be inverted. See the description for FSK
OPERATION in Chapter 4.
Remote Pod Enc is used for the accessory
302R remote encoder/keypad. The 302R's
main tuning knob can be used as a duplicate
of VFO A or VFO B by selecting either VFO-
A or VFO-B on this menu line item. The
302R main tuning knob can also be used for
RIT/XIT or PBT/BW operation by selecting
RIT/XIT or PBT/BW on this menu line item.
Line Out Src determines which receiver
audio output is sent as line level to the line
level audio output at pin 4 on the rear panel
AUX I/O jack. Choices are Main, Sub, Both.
Line Out Level determines the level of
output at the pin 4 AUX I/O jack. Settings
are High, Med, Low – for most applications
(like digital modes) the High setting will be
used.
(SSB) SSB MENU
Aux Input Gain is used for adjusting audio
gain from an accessory device using the line
level aux input available on pin 1 of the rear
panel AUX I/O connector.
TX Filter BW controls the SSB transmit filter
bandwidth. The maximum bandwidth usable
by ORION II is 3.9 kHz. Wider bandwidths
(above 3 kHz) have a more full-range sound
to transmitted SSB audio; narrower
bandwidths are "communications grade"
SSB audio. Typical communications audio
for TX Filter BW would be 2.7 kHz.
L.F. Rolloff refers to the point where low
end audio response starts for transmitted
SSB audio. For example, if TX Filter BW is
set to 3000 Hz and L.F. Rolloff is set to 200
Hz, the frequency response of the
Version 4 – October 2006
34
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