566 manual
Version 4 – October 2006
Part #74410
Printed in USA
33
independently of the software noise blanker.
When activated, the area just above the NB
button on the bottom of the radio screen will
show the annunciator
:H
next to any value
set for the software noise blanker. The
hardware noise blanker can also be
activated without going into the menu
system by pressing and holding the NB
button for two seconds. Also see the
description of the software noise blanker in
Chapter 2 under
(23) NB
.
Main RX Sql
is the squelch threshold for the
main receiver. It represents a signal
threshold measured in -dBm. The higher
the value, the more receive signal will be
needed to break the squelch. Adjust by
turning the MULTI knob.
Sub RX Sql
is the squelch threshold for the
sub receiver. It represents a signal
threshold measured in -dBm. The higher
the value, the more receive signal will be
needed to break the squelch. Adjust by
turning the MULTI knob.
PBT/BW Step
allows the operator to choose
in what step size the PBT/BW encoder
selects filter bandwidths and PBT values.
The available choices are 10, 50 and 100
Hz.
AGC Slope
allows users to slightly alter the
AGC response of the transceiver above the
AGC threshold. The AGC output of the
ORION II is uniform above the AGC
threshold point, allowing a wide range of
input signal strengths to appear uniformly
output at audio. Some users feel that the
ability to copy signals is enhanced by having
slightly variability in the AGC output rather
than having a uniform output.
Above the AGC threshold point, the
transceiver can respond uniformly (set to
FLAT), or have a rise of 1 db per 10 dB of
signal input or 2 dB per 10 dB of signal input
(settings of 1:10 dB or 2:20 dB).
Below the AGC threshold, signals have a
1:1 ratio (1 dB rise per 1 dB of signal input)
and are not affected by the AGC Slope
setting. See also the description of
AGC
above for discussion of AGC threshold.
(OTHER) OTHER MENU
Figure 3-4 Other Menu
The Other menu is used for ORION II
functions that do not fit into one of the other
menu categories.
Remote Pod F1
,
Remote Pod F2
, and
Remote Pod F3
refer to the control of radio
functions available via the F1, F2, and F3
buttons on the accessory model 302R
remote encoder/keypad available for ORION
II. If you do not have the 302R connected,
they will have no function.
To scroll through the available choices for
each of
Remote Pod F1
,
Remote Pod F2
,
and
Remote Pod F3
, turn the MULTI knob.
VFO A/B
duplicates the function of the A/B
button on the front panel (see
(60) A>B,
B>A, A/B
in Chapter 2). This flips the two
frequencies shown, copying A to B and B to
A.
Step
duplicates the function of the STEP
button on the front panel (see
(31) STEP
in
Chapter 2). Unlike the front panel STEP
button, the step sizes available are selected
via repeat pushing of the F1, F2, or F3
button depending on which is being used.
The radio will cycle through the seven
available step sizes.
Mode
duplicates the function of the MODE
button on the front panel (see
(27) MODE
in
chapter 2). Unlike the front panel MODE
button, the step sizes available are selected
via repeat pushing of the F1, F2, or F3
button depending on which is being used.
The radio will cycle through the seven
available modes.
Sweep on/off
duplicates the function of the
SWEEP button on the front panel (see
(32)
Содержание ORION II
Страница 58: ...566 manual Version 3 March 2006 Part 74410 Printed in USA 58 Figure 5 2 Subassembly Cabling...
Страница 59: ...566 manual Version 3 March 2006 Part 74410 Printed in USA 59 Figure 5 3 Plan View of ORION Chassis...
Страница 60: ...566 manual Version 3 March 2006 Part 74410 Printed in USA 60 Figure 5 4 Main Receiver Signal Path...
Страница 61: ...566 manual Version 3 March 2006 Part 74410 Printed in USA 61 Figure 5 5 Subreceiver Signal Path...
Страница 62: ...566 manual Version 3 March 2006 Part 74410 Printed in USA 62 Figure 5 6 Transmit Signal Path...