565 manual
September 2003
Part #74279
Printed in USA
18
“
Left:
” – is for routing audio to the left side of
stereo headphones. The available choices
are Main (main receiver audio), Sub (sub
receiver audio), and Both (main and sub
receiver audio). Press button
28
to select as
desired. “
Right:
” is for the right side of
stereo headphone audio. “
Spkr:
“ is for
internal and external speaker audio.
If using mono headphones wired with a
stereo connector as described in the
description for the phones jack (see button
15
description earlier in the manual) – use
the “Left:” headphone setting to determine
what audio is heard in your headphones.
We recommend stereo headphones for
using ORION to its fullest effect.
“
BinRX:
” is the unique binaural Panoramic
Stereo™ receive feature incorporated in
ORION. High-pass and low-pass filtering,
combined with time delays, produce a three-
dimensional spatial sound from a monaural
audio source.
Panoramic Stereo™ can be used for the CW
operator to automatically zero beat received
CW signals by listening in stereo. If the
signal is too high or too low for the CW
offset that the operator has selected, the
signal will be heard to the left or to the right
with stereo headphones. Tuning in the
signal for equal audio in both ears tells the
operator that the signal is zero beat and on
the correct frequency.
The CW offset you have selected using the
SPOT function (see explanation for button
30
above) controls at what frequency the
received CW signal is centered in your
stereo headphones.
Additionally, on CW, spatial dispersion
makes it easier to pick out one signal among
many. During a CW pileup, the operator can
more easily and quickly pick out single
callsigns from a number of callers than with
mono receive audio.
Panoramic Stereo receive also is usable in
SSB modes with the same effect. Signals
below or above in frequency will be heard in
one side or the other of stereo headphones
and when centered assure the operator they
are on frequency.
When selecting “
BinRX:
” on the menu, you
will notice that the headphone settings for
“
Left:
” and “
Right:
” will also change to
whichever receiver you have selected
Panoramic Stereo receive for. When
“
BinRX:
” is set to off, “
Left:
” and “
Right:
”
will revert to earlier values set by the
operator.
ORION provides audio equalization for both
receivers and for the transmitter. They
enable tailoring audio frequency response
for greater effectiveness and to
accommodate your preferences.
The TX EQ (transmit equalizer) establishes
a specific audio profile for your transmitted
audio from either the MIC or AUX audio
input sources. The TX EQ is selectable in 1-
dB steps from high pitched at –20 to
essentially flat response at to 0 dB to very
bassy at +20 dB. Press button
30
and turn
the MULTI knob to adjust values upward or
downward. TX EQ can also be adjusted
upwards in 1 dB increments by pushing
button
30
. The MULTI knob can adjust the
values up or down.
RX EQ (main receiver equalization) works
the same way. More treble or bass
response from main receiver audio can be
had by adjusting this selection with button
29
and the MULTI knob.
SUBEQ (subreceiver equalization) is
identical in operation to RX EQ, except it is
used for sub receiver audio. Press button
28
and use the MULTI knob to adjust.
The graphs in Figures 2-11, 2-12 and 2-13
show the response curves in the center and
at the extremes of the equalization controls.
Lower numbers of decibels indicate a
gentler slope.
The same curves apply to both receiver
equalizers and to the transmitter equalizer.
The displayed setting of the equalizers
refers to the amplitude in dB (at about 100
Hz) relative to the highest frequency in the
passband. For example, the –20 dB setting
produces –20 dB at 100 Hz relative to 0 dB
at 6 kHz.
