User manual ICOM AG-25

[. . . ] about 2 weeks after initial installation. NOTE: Cover the type-N connector with self valcanizing tape to avoid water seeping into the unit. Binding the type-N connector with self valcanizing tape increases the waterproofing of the connection mold. ï Before setting Test to operate on the ground before installation is recommended. [. . . ] For satellite communications, an antenna rotator which adjusts the antenna direction (azimuth), and an elevation angle rotator which adjusts the angle above the horizon, are necessary. · Connect AG-25 and IC-910H e Push [SSB/CW] to select SSB or CW mode. to turn the AG-25 power ON. · When the AG-25 functions correctly, the noise level rise up. 2400MHz band AG-25 ï Orbit information Orbit information describes satellite location, wave angles, etc. This information may be available in ham magazines or organization issues, such as from ARRL or RSGB handbook, etc. Use of satellite tracking software is also convenient. AO-40 Uplink Downlink 435 MHz band 2400 MHz band 2400 MHz band 435 MHz band 430MHz band To 430MHz ANT connector 144MHz band To 144MHz ANT connector 1200MHz band IC-910H * 1200 MHz band operation also available with AO-40. ï AO-40 · Uplink frequency : 435. 780­435. 495 MHz · Downlink frequency: 2400. 225­2400. 475 MHz (S1 BAND) · Downlink frequency: 2401. 210­2401. 495 MHz (S2 BAND) · Beacon frequency : 2400. 338 MHz (S1 BAND) 2401. 323 MHz (S2 BAND) ï Converting frequency with the AG-25 · 2400. 225­2400. 475 MHz to 144. 225­144. 475 MHz · 2401. 210­2401. 495 MHz to 145. 210­145. 495 MHz NOTE: Turn the pre-amplifier controller for 144 MHz ON during satellite operation with the AG-25, because the external pre-amplifier control voltage is used as the AG-25's main power. The built-in protector may not function correctly when accidental transmission such as continuous transmission is applied. Confirm a satellite's operating mode in advance through documentation (magazines, etc. ) or via appropriate satellite tracking software. In the wrong mode, you cannot use the satellite even if you receive its beacon signal. s Activating the satellite mode Operating frequencies in satellite mode can be set both before and after activating the satellite mode. Normal and reverse tracking are available. ï Transferring the VFO frequency to the satellite VFO. to select track- t Select operating mode. Satellite Reverse tracking type Normal tracking type Downlink (MAIN band) USB (or CW) USB (or CW) Uplink (SUB band) LSB (or CW) USB (or CW) Downlink (receive) frequency P. AMP S1 3 5 7 9 20 40 60dB USB LSB SATL RE V S1 3 5 7 9 20 40 60dB MEMO P. AMP S1 NOR 3 5 7 9 20 40 60dB LSB MEMO r Push [SWP 0 S ] to enable the uplink frequency tuning. · Downlink frequency indication disappears. · Push [SWP 0 S ] again after the tuning. USB SATL RE V S1 3 5 7 9 20 40 60dB Satellite mode indication Uplink (transmit) frequency P. AMP S1 3 5 7 9 20 40 60dB y Set the downlink frequency (MAIN band) to the beacon frequency. MEMO LSB SATL RE V S1 3 5 7 9 20 40 60dB NOTE: To select the operating mode for the uplink, push [SUB] to enable the SUB band access. · Refer to a ham magazine or book for detailed information. · Adjust the antenna direction so that the S-meter shows to its strongest level. · The S-meter level should be noted for transmit power adjustment during a loop test. u Perform a loop test. · Set the downlink frequency (MAIN band) to a vacant frequency within the satellite's coverage. · Push [SWP 0 S ] then, set the uplink frequency (SUB band) while transmitting a single tone such as a whistle to find your downlink signal and monitor your own signal correctly. Push [SWP 0 S ] after setting. w Rotate the tuning dial to re-tune the downlink frequency after pushing [SCAN . M ], when the operating station's signal frequency is shifted. · RIT function can also be used for downlink frequency tuning within ±1 kHz range. s Satellite memory The AG-25 has 10 satellite memory channels to memorize both uplink and downlink frequencies and operating modes, etc. USB P. AMP S1 3 5 7 9 20 40 60dB LSB SATL REV S1 3 5 7 9 20 40 60dB MEMO ï Satellite memory selection q Push [SATELLITE] to enter the satellite mode. w Push [V/M 1] to select satellite memory mode. · "MEMO" indicator and memory channel number are displayed beside the uplink frequency (SUB band) indication. · Push [V/M 1] again to select satellite VFO. NOTE: To avoid excessive power, set the output power so that the downlink signal strength is lower than the beacon's strength. e Push [DNw] or [UPv] to select the desired satellite mode memory channel. · The channels 00-09 are selectable. [. . . ] · Push [V/M 1] again to select satellite VFO. NOTE: To avoid excessive power, set the output power so that the downlink signal strength is lower than the beacon's strength. e Push [DNw] or [UPv] to select the desired satellite mode memory channel. · The channels 00-09 are selectable. · By pushing and holding either switch, the satellite memory channel changes continuously. USB P. AMP S1 3 5 7 9 20 40 60dB USB LSB SATL RE V S1 3 5 7 9 20 40 60dB MEMO P. AMP S1 3 5 7 9 20 40 60dB LSB SATL RE V MEMO i Set the desired frequency to begin your satellite communications. · Both the downlink and uplink frequencies are changed simultaneously. S1 3 5 7 9 20 40 60dB Satellite memory indication o When your downlink audio drifts (Doppler effect), push [SWP 0 S ] then rotate the tuning dial to adjust the uplink frequency (SUB band) only. Push [SWP 0 S ] again after setting. · When a particular station's audio is off frequency, use the RIT function (push [RIT]) ï Satellite memory programming q Select the desired satellite memory channel. · Push [SATELLITE] to enter the satellite mode. [. . . ]