* In order to use the PL Tone properly on your Icom, ensure the following setting is set to ON (DUP)
Menu -> Set -> Function -> Auto Repeater
When tracking starts the first transponder in the list is automatically selected. Your radios VFOs and
modes will be set up and the center frequencies will be selected, adjusted for doppler. Tuning will
start. The calculated doppler offset and current frequency will be display in the RADIO area on the
page.
Click on a transponder name to switch to it - the radio bands and modes will be automatically set for
the selected transponder and frequency updates will start. If a frequency is not correct in the
transponder list you can click on it and change it. The frequency you enter will be the new center
frequency that the doppler shift is calculated from. The setting is not saved however you can contact
us and we will make the necessary adjustment in the transponder database. If a mode is not selected
correctly you can chage it using the drop down menus. Again, contact us and we'll make corrections
in the database.
The POWER and TX PL selections let you change the transmit power and transmit PL tone respectivly.
Note that not all radios support changing the power levels with remote commands.
Satellite frequencies drift. This can be caused by thermal issues on the spacecraft, from satellite age
and/or other factors. So some adjustment may be required by operators on on the ground. The
easiest way is to use the RIT control on radios that have it (Icom 9100 & 9700). You can use the RIT
control to fine tune the downlink frequency.
The other way is to simply move the tuning dial on the radio but in this case you must be aware of the
LOCK VFO option on the S.A.T.
With the VFOs locked, any change you make to the downlink will also be reflected in the uplink
frequency. For example, if you tune the downlink down by 5kHz, the uplink will tune up by 5kHz.
Unlocking the VFO's prevents this and you are free to change the downlink without affecting the
uplink.
Keep in mind some features of the radio may be difficult to manipulate while frequency updates are
being sent by the S.A.T., especially if the update interval is fast (less than 1 sec). Clicking the ENABLE
button will stop the updates and the button will turn red. You are now free to adjust the radio and
when ready you click ENABLE to start the updates again.
BEST PRACTICE
For the easiest operation follow the steps below. This is tailored for the linear satellites but partly
apply to the FM ones also.
For best result using the RIT set your radio to not display the 1Hz digit. With the 1Hz showing
you'll have rotate the RIT much more than if that digit is off. To turn the 1Hz digit off press and
hold the digit for at least one second.
1. Choose a satellite and transponder.
2. Tune your RIT knob on the radio until you hear your self. You should only have to move the RIT
within a couple KC to find yourself. Do not touch the tuning knob until you find yourself.
3. One you can hear yourself you can then use the radio's tuning knob to work your way up and down
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