Filter
Top Products
60
10
OPTIONAL INSTALLATIONS/SETTINGS
■ CR-282
HIGH
-
STABILITY CRYSTAL UNIT
By installing the CR-282, the total frequency stability
of the transceiver will be improved.
➀Remove the bottom cover as shown on the oppo-
site page.
➁Remove the 5 screws and 2 flat cables holding the
PLL unit in place.
➂Remove the existing crystal unit.
➃Put the CR-282 in the space available as shown in
the diagram.
➄Adjust the reference frequency at L601 using a fre-
quency counter (60.00000 MHz).
➅Return the shield case and bottom cover to their
original positions.
CR-282 frequency stability: ±0.5 ppm
(–30°C to +60°C;
–22°F to +140°F)
■ IF filters
Several IF filters are available for the IC-706MKIIG.
Choose a filter most appropriate to your operating
needs.
Note: After filter installation, specify the installed filter
using initial set mode (items 9, 10). Otherwise, the
installed filter will not function properly.
FL-100
CW NARROW FILTER
500 Hz/–6 dB
FL-101
CW NARROW FILTER
250 Hz/–6 dB
FL-103
SSB WIDE FILTER
2.8 kHz/–6 dB
FL-223
SSB NARROW FILTER
1.9 kHz/–6 dB
FL-232
CW
/
RTTY NARROW FILTER
350 Hz/–6 dB
➀Remove the top cover as shown on the previous
page.
➁Install the desired filter as shown in the diagram
below.
•These filters can be installed in either direction.
➂Replace the top cover.
Filter
PLL unit
CR-282
Reference freq. check point
(60.00000 MHz)
ribbon
cable
ribbon
cable
existing
crystal
L601
PLL unit (bottom)