11 SPECIALIZED COMMUNICATIONS
DX PACKET CLUSTER TUNE
DX Packet Cluster is a packet network which consist of nodes and stations who are interested in DXing and contesting. If one station finds a DX station on the air, he or she sends a notice to his or her node. This node then passes the information to all its local stations as well as another node. This transceiver can display received DX information and hold the latest information on up to 10 DX stations.
This transceiver is also capable of automatically tuning in a reported DX station. In order to use the Auto Tune function, access Menu No. 49A and select “AUTO”; the default is “MANUAL”.
1Press [A/B] to select VFO A or VFO B.
2Press the SUB AF control to activate the sub- receiver if it is switched OFF.
•The orange SUB LED lights {page 45}.
3Tune to the frequency of the target DX Packet Cluster node on the
4Access Menu No. 46 to confirm that “SUB” is selected.
5Press [FUNC], [SET/ P.C.T.] to enter the Packet Cluster Tune (P.C.T.) mode.
•Each time new DX Packet Cluster data is received, the DX station’s callsign in Morse code sounds and the information is displayed on the
6If you are not using the Auto Tune function, press [SET/ P.C.T.].
•The main transceiver is tuned to the frequency of the reported DX station, on the
•Transmitting on the tuned frequency, the transceiver exits the P.C.T. mode. Press [FUNC], [SET/ P.C.T.] again to reactivate it if necessary.
7Press [FUNC], [SET/ P.C.T.] to exit the P.C.T. mode.
To access desired DX information in the P.C.T memory, press QUICK MEMO [MR], then turn the MULTI/ CH control. Press [SET/ P.C.T.] to tune the main band to the selected station. Press QUICK MEMO [MR] again to quit the DX information display.
The transceiver can be set to output a beep instead of a Morse code when new DX Packet Cluster data is received. Access Menu No. 49B and select “OFF”. “VOICE” can also be set when you install the optional
Note:
◆You cannot send DX information to a node using this function.
◆The DX Packet Cluster data in memory is retained when the transceiver is turned OFF. However, the
SATELLITE OPERATION
Amateur satellites receive on one band and transmit on another. Unlike in regular operation, Satellite mode can handle uplink/ downlink frequency combinations simultaneously in all operating modes as shown below.
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| Band | HF ~ | 144 MHz | 430/ | 1.2 GHz |
| 50 MHz | 440 MHz | |||
| HF ~ |
| √ | √ | √ |
| 50 MHz |
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DOWN |
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144 MHz | √ |
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LINK |
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| 430/ | √ | √ |
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| 440 MHz |
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| 1.2 GHz | √ | √ | √ |
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Some satellites require a rotator that allows azimuth and elevation control, plus a
Doppler Shift is another aspect that you must take into account when working the satellites. As a target satellite travels away, frequencies on which you will receive change. This transceiver has a function that automatically keeps the sum or difference between the two frequencies identical when you change the receive frequency.
For further information, consult Internet Web pages relating to Amateur satellites. On Internet search engines, use “AMSAT” as key words to find those Web pages. Or, you can directly go to the AMSAT (the Radio Amateur Satellite Corporation) homepage at http://www.amsat.org. From AMSAT Web pages, you can download a variety of utilities, including pass prediction programs, which will ease your satellite operations.
BASIC OPERATION
When you enter the Satellite mode, you are always controlling one of 10 Satellite Memory channels with the adjustable frequency function. The Satellite Memory channel number (0 ~ 9) appears on the main transceiver’s display when you enter the mode.
1Press [SATL] to enter Satellite mode.
•The default downlink (435.9 MHz) and uplink (145.9 MHz) frequencies appear.
•“TRACE”, “
”, and “
” appear to indicate the current selections.
2On VFO A, tune to the downlink (RX) frequency of the satellite.
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