User manual ICOM IC-725A

[. . . ] 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. [. . . ] · Be sure the mic gain is in the range of 2 to 5. [COMP GAIN] Select M4. COMP GAIN BEEP /SIDE T Push [(F-2)COM], then adjust [COMP GAIN] so that the ALC meter reads within the ALC zone whether you speak softly or loudly. Note: When the ALC meter peaks above the ALC zone, your transmitted voice may be distorted. ALC ALC zone · Push [DISPLAY] 1 or 2 times to select M, if necessary. · Push [MENU] one or more times to select M4. Adjust [COMP GAIN] so that the ALC meter reads within the ALC zone. D VOX operation The VOX (Voice-operated Transmission) function toggles between transmit and receive with your voice. This function provides an opportunity to input log entries into your computer, etc. , while operating. Select M4, then turn the VOX function ON. · Push [DISPLAY] 1 or 2 times when S or G appears. [MENU] [(F-1)VOX] main dial [DISPLAY] Select VOX GAIN in quick set mode. While speaking into the microphone, adjust [VOX Select VOX DELAY in quick set mode. DELAY] as desired. GAIN] until the transceiver is transmitting. · Push [MENU] one or more times to select Q3. While speaking into the microphone, adjust [VOX Select ANTI VOX in quick set mode. If the receive audio from the speaker toggles the transceiver to transmit during receive, adjust the [ANTI-VOX] to the point where it has no effect. Push [DISPLAY] to exit quick set mode. · Push [MENU] one or more times to select Q5. 26 4 RECEIVE AND TRANSMIT D Optional AT-180 AUTOMATIC ANTENNA TUNER operation The AT-180 automatic antenna tuner matches the IC706MKIIG to the connected antenna automatically. Once the tuner matches an antenna, the variable capacitor angles are memorized as a preset point for each frequency range (100 kHz steps). Therefore, when you change the frequency range, the variable capacitors are automatically preset to the memorized point. MANUAL TUNING During SSB operation on HF bands at low voice levels, the AT-180 may not be tuned correctly. 54). 28 4 RECEIVE AND TRANSMIT I Split frequency operation Split frequency operation allows you to transmit and receive on two different frequencies. Split frequency operation uses 2 frequencies, one in VFO A and the other in VFO B. Following is an example of setting 7. 057 MHz, CW mode in VFO A (for receive) and 7. 025 MHz, CW mode in VFO B (for transmit). CW SPL VFO B · The transmit frequency can be monitored while pushing [(F-3)XFC]. · Split operation is now set for receive on 7. 057 MHz/CW and transmit on 7. 025 MHz/CW. Select VFO A and set the frequency to 7. 057 MHz/CW. · [(F-2)A/B] is available when M1 appears. · [(F-3)V/M] is available when M2 appears. CW To exchange the transmit and receive frequencies, push [(F-2)A/B] in M1. CONVENIENT VFO A Push or push and hold [(F-1)SPL] in the M1 display. Push and hold [SPL]: activates the quick split below. CW SPL The G3 display conveniently shows the transmit frequency during split frequency operation and [(F-3)Ñ] allows you to change the transmit frequency. · Split lock function The split lock function is convenient for changing only the transmit frequency. Otherwise, accidentally releasing the [(F-3)XFC] switch while rotating the main dial changes the receive frequency. The split lock's effectiveness can be selected in initial set mode (item 12) for both receive and transmit frequencies; or only the receive frequency. 52) VFO A To change the receive frequency, rotate the main dial; to change the transmit frequency, rotate the main dial while pushing [(F-3)XFC]. D Quick split function In M1, when you push [(F-1)SPL] for 2 sec. , split frequency operation is turned ON and VFO B is automatically changed according to the plus/minus preprogrammed shift frequency set in initial set mode (or equalized when 0 kHz is programmed as the split shift frequency). This shortens the time needed to start split frequency operation--great for DX'ing. [. . . ] of memory pads Power ON check function Auto tune start function PTT tune function Packet data speed ACC output selection Speech synthesizer lang. Speech synthesizer speed Speech synthesizer S-meter CI-V address assignment Data transfer rate CI-V transceive CI-V 731 Initial set mode No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Y Z 37 CI-V 731 MENU 19 1TOUCH RPTR 67 MENU GUIDE 14 S1 M1 SPL A/B A=B XFC (when split is ON) V/M (in memory mode) MW SCN MPW PRI SEL 50 NR MPR V/M (in memory mode) S2 DISPLAY MENU M2 MENU MW MÜV MCL NB COM BRK S3 S4 7 ANF 144 NRL M3 M4 MODE FIL VOX 1/4 1/4 VOX MET DISPLAY AGC AGC AGC (SSB/AM) (CW) (RTTY) (FM) M4 M4 M4 G1 DISPLAY MENU BAND scope IF SHIFT TX freq. Memory name G2 G3 G4 COM TON DISPLAY DISPLAY For 2 sec. [. . . ]