User manual ICOM IC-728-729

[. . . ] During mobile operation, DO NOT operate the transceiver without running the vehicle's engine. When transceiver power is ON and your vehicle's engine is OFF, the vehicle's battery will soon become exhausted. This will avoid possible damage to the transceiver by ignition voltage spikes. During maritime mobile operation, keep the transceiver and microphone as far away as possible from the magnetic navigation compass to prevent erroneous indications. [. . . ] When you push the [SPLIT] switch for 2 sec. , split frequency operation is turned ON, the sub readout is equalized to the main readout frequency and enters standby for transmit frequency input. 56) In this case, the [SPLIT] switch does not equalize the main and sub readout frequencies. q Suppose you are operating at 21. 290 MHz (USB) in VFO mode. ANT 1 METER Po Po P. AMP OFF ATT OFF w Push [SPLIT] for 2 sec. - Split frequency operation is turned ON. - The sub readout enters standby for transmit frequency input. ANT 1 METER Po Po P. AMP OFF TX 9 2. 4k 455 2. 8k USB VFO 1ß 14. 100. 00 SPLIT F-inP USB 21. 290. 00 USB ATT OFF VFO 21. 290. 00 1ß 14. 100. 00 USB e Rotate the tuning dial to set the transmit frequency; or, input the transmit frequency using the keypad and [ENT]; or, input a shift frequency using the keypad and [SPLIT]. - The transmit frequency can be monitored while pushing [XFC] or using dualwatch. ANT 1 METER Po Po P. AMP OFF TX 9 2. 4k TX 455 2. 8k USB 1ß 14. 100. 00 USB USB 12:34 VFO 21. 290. 00 14. 205. 00 9 2. 4k 455 2. 8k USB VFO 1ß 14. 100. 00 SPLIT 12:34 USB VFO 21. 290. 00 USB 1ß 14. 100. 00 USB ATT OFF VFO 21. 310. 00 1ß 14. 100. 00 USB PRACTICAL EXAMPLE When you are searching for DX stations and you suspect that a DX station may say "up `X' kHz" for their receive frequency: PRACTICAL EXAMPLE When you receive a pile-up and you want to start split frequency operation to simplify picking out stations: q Push [SPLIT] momentarily and push [CHANGE] for 2 sec. - The sub readout frequency is equalized to the main readout frequency and " SPLIT " appears. w Rotate the tuning dial to set your receive frequency in the main readout. r After you catch one of the calling stations' call signs, push and hold the PTT switch to respond. - While pushing [XFC], you can monitor your transmit frequency. OPERATION 1 q Push [SPLIT] for 2 sec. w If the DX station says "up 10 kHz": - Push [1], [0] then [SPLIT]. - Or, rotate the tuning dial. OPERATION 2 If the DX station says "down 5 kHz" before you enter standby for split operation: · Push [F-INP], [ · ], [5] then [SPLIT]. - The split function is turned ON and "5 kHz down" frequency is entered in the sub readout. 32 4 RECEIVE AND TRANSMIT s Monitor function The monitor function allows you to monitor your transmit IF signals in any mode through the speaker. r Select the "Dot/dash ratio" item using [F-1] or [F-2]. AGC MID BK-IN OFF KEYING WEIGHT EXAMPLE: morse code "K" DASH DOT (Fixed*) DASH [CW KEYER SETTING] [CW KEYER SETTING] Repeat time Dot/dash ratio Paddle polarity Keyer type Mic up/down keyer 2sec 1:1:3. 0 NORMAL ELEC-KEY OFF Weight setting: 1:1:3 (default) Weight setting: Adjusted Adjustable range SPACE (Fixed*) DEF DEF EXIT t Rotate the tuning dial to select the keying weight. - 1 : 1 : 2. 8 to 1 : 1 : 4. 5 can be set. - Push [(F-3)DEF] to select a default ratio of 1 : 1 : 3. 0. *SPACE and DOT length can be adjusted with [KEY SPEED] only. y Push [F-2] to select the "Paddle polarity" item. AGC MID BK-IN OFF [CW KEYER SETTING] [CW KEYER SETTING] Repeat time Dot/dash ratio Paddle polarity Keyer type Mic up/down keyer 2sec 1:1:3. 0 NORMAL ELEC-KEY OFF DEF DEF EXIT u Rotate the tuning dial to select the key polarity between normal and reverse polarity. 35 RECEIVE AND TRANSMIT 4 s Memory keyer The memory keyer memorizes and can re-transmit 4 CW key codes for often-used CW sentences, antenna types, etc. Total capacity of the memory keyer is 55 characters in each memory channel. r Push [(F-1)M1] ­ [(F-4)M4] momentarily to transmit the contents one time; push these keys for 2 sec. to transmit the contents repeatedly. - "M1"­"M4" are highlighted while transmitting. - "M1"­"M4" blink while transmitting repeatedly. - To count down the contact number, push [COUNT­1]. · Programming the memory keyer q Push [CW] to select CW mode. e Push [(F-2)EDIT] to enter the memory keyer edit screen. 9 2. 4k ABCDE FGHIJ KLMNO TX t Push [(F-5)EXIT] to exit memory keyer screen. 455 2. 8k CW 1ß 14. 100. 00 CW USB 12:34 VFO 14. 195. 00 14. 205. 00 · Setting the contact (serial) number Contact number can be automatically transmitted from one of the memory keyer channels. e Push [(F-3)001] to enter contact number screen. AGC MID BK-IN OFF Character keys VFO PQRST UVWXY Z /?^. , * M1 M1 . . . M4 M4 USB 1ß 14. 100. 00 [MEMORY KEYER EDIT] [MEMORY KEYER EDIT] M1 M2 M3 M4 Q TEST CQ TEST DE JA1 JA1 TEST UR 5NN* BK CFM TU QRZ? Memory ch select Å Ç DEL DEL SPACE SPACE EXIT [CONTACT NUMBER (001)] Number style Count up trigger Present number 190 ANT M2 001 r Push [M1. . . M4] one or more times to select the desired keyer memory channel. t Input the desired character by pushing the character keys (as shown above) one or more times or by pushing the band key for number input. - Push [(F-1)] or [(F-2)] for cursor movement. [. . . ] Turn the brake adjustment screw clockwise or counterclockwise to obtain a comfortable tension level while turning the dial continuously and evenly in one direction. Light Heavy s Frequency calibration (approximate) A very accurate frequency counter is required to calibrate the frequency of the transceiver. However, a rough check may be performed by receiving radio station WWV, or other standard frequency signals. y Push [(F-1)Y] several times to select the "Calibration marker" item. u Rotate the tuning dial clockwise to turn the calibration marker ON. - Side tone may be heard. AGC MID VOX OFF COMP OFF OFF CAUTION: Your transceiver has been thoroughly adjusted and checked at the factory before being shipped. [. . . ]