Icom IC-910H - Satellite Operation and Memory

8
48
SATELLITE OPERATION
n Satellite communications outline
Both satellite mode B (435 MHz uplink, 145 MHz down-
link) and mode J (145 MHz uplink, 435 MHz downlink)
can be operated from the IC-910H, and mode L can
be operated when the optional UX-910 1200 MHz BAND
UNIT is installed.
Satellite communications is possible only when a sat-
ellite is in view and its transponder is activated.
n Satellite notes
1. NEVER set the output power too high. Too much
power will shorten the satellite’s life.
Set your transmit power so that your downlink sig-
nal level is lower than the beacon’s signal level.
2. Confirm a satellite’s operating mode in advance
through documentation (magazines, etc.) or via ap-
propriate satellite tracking software. In the wrong
mode, you cannot use the satellite even if you re-
ceive its beacon signal.
3. Preamplifiers may be necessary to receive satel-
lite signals. Optional AG-25, AG-35 and AG-1200
(for UX-910) are available to use with the IC-910H.
(p. 16)
4. When you use a reverse tracking satellite in SSB
mode, use the LSB for the uplink frequency and
USB for the downlink frequency.
 •WhenusinganormaltrackingsatelliteinSSBmode,
use USB for both the uplink and downlink frequencies.
n Entering into the satellite
mode
Operating frequencies in satellite mode can be set
both before and after entering into the satellite mode.
Normal and reverse tracking are available.
D Transferring the VFO frequency to the
satellite VFO
q Set the downlink frequency (receive) in the MAIN
band.
w Set the uplink frequency (transmit) in the SUB band.
e Push [SATELLITE] for 1 sec. to transfer the frequen-
cies, set in steps q and w, into the satellite VFO.
 •Satellitemodeisautomaticallyselectedaftertransfer-
ring.
 •“SATL”indicatorwitheither“NOR”or“REV”indicatorap-
pears.
 •VFOandmemorymodeindicationsaredisplayedinthe
SUB band (lower area) during satellite mode.
[SATELLITE] for 1 sec.
435 MHz
band
435 MHz
band
145 MHz band
145 MHz
band
FUJI 3 (FO-29)
Uplink
Downlink
• Mode B operating diagram
[Example]: FUJI 3 (FO-29), Mode B
•Uplinkfrequency:
145.9000–146.0000 MHz
•Downlinkfrequency:
435.8000–435.9000 MHz
•Trackingdirection:
Reverse
•CWbeaconfrequency:
435.7950 MHz
Orbit information
Orbit information describes satellite location, reach-
ing angles, etc. This information may be available
in ham magazines or organization issues, such as
from ARRL, RSGB handbook, etc.
Appropriate satellite tracking software is also con-
venient.