User manual ICOM IC-707

[. . . ] With this flexible DSP-based waveform shaping, you can tailor your transmit audio quality to suit your operSSB transmit bandwidth setting ating style. Mini scope screen Normal spectrum scope screen Eight-channel RTTY TX memory RF stage & Preamplifiers Preamp-1 Preamp-2 Real time spectrum scope with mini scope function The real time spectrum scope is now an indispensable tool for top performing HF radios. The IC-707's spectrum scope adds a mini scope function, as requested by many PROII users. The mini scope allows you to monitor the scope screen while you use other function menus. For example, you can monitor the scope screen even while you are changing the IF filter shape and passband width. [. . . ] The scope range can be set in 4 steps ±12. 5 kHz, ±25 kHz, ±50 kHz and ±100 kHz, centered on The IC-707 has 8 channels of RTTY transmit memory. You can edit and send up to a 62 character message for each memory channel without a PC or other external unit*. The transmit memory is displayed on the screen so you won't send the wrong message. The built-in RTTY demodulator and decoder allow you to check the callsign of the station on the air instantly. A PC or external unit is not also necessary. * When writing and sending RTTY messages on site, a Terminal Unit, TNC or PC and dedicated software is required. RTTY transmit memory screen Other new features · New 60 meter band coverage, equivalent transmit power and antenna tuner capabilities to the other bands. (U. S. A. version, USB mode only) · 2 clocks show different time zones at once, such as local and UTC time. · Screen saver function · @ code (· ­ ­ · ­ · ), used in e-mail addresses, added to memory keyer Inherited Properties From the 756PROII Inherited Propert 32-bit floating point DSP & 24-bit AD/DA converters The heart of the IC-707 is the proven combination of the 32-bit floating point DSP and 24-bit AD/DA converters. This powerful combination supports many digital processing features exclusive to the IC-707, which cannot be achieved with traditional analog processors. The receiver delivers a distortion-free, clear sound in any signal condition, from a weak signal to a strong full power station. Dual watch The dual watch* function allows you to receive 2 signals on the same band simultaneously. You can listen to your favorite net while keeping an eye or ear on the DX station. The signal strength balance between the main and sub frequencies is adjustable from the balance knob. By suppressing the noise components, an outstanding Signalto-noise ratio is achieved, providing clear, clean audio in all modes without distortion of the target signal. Audio output comparison NR OFF NR ON Other features [Antenna and receiver] · Built-in highspeed auto antenna tuner · 2 TX/RX antenna connectors and RX antenna connector · 30kHz­60MHz general coverage receiver* · Built-in RX attenuator (6/12/18dB) · Twin peak audio filter for RTTY reception [Transmitter] · Tx monitor function · Tone encoder · VOX operation · All mode power control · External Control for Voice Memory and Memory Keyer [CW mode] · CW Wave form controlled by the DSP · Multi-function electronic keyer includes adjustable keying speed and dot/dash ratio, polarity, bug keyer · Continuously adjustable CW pitch control from 300­900Hz · Double key jacks (Front and rear panels) · Full break-in (QSK) · CW reverse [Operation] · Set mode menu for speedy setting · Analog and digital meter indicates relative output power, SWR, ALC level and compression level · Memory pad stores up to 5 or 10 operating frequencies and modes · Quick split function · RF gain and squelch control · ±9. 999kHz Adjustable RIT and TX · 1Hz step tuning and display · 101 memory channels with 10-character channel name · Optional Voice synthesizer announces the operating frequency, mode and signal strength in English · Program, memory, select memory, f scans · Auto tuning step function · Dial lock · Band edge beep (can be disabled) · AH-4 control circuit · Automatic tuning speed · CI-V interface with optional CT-17 for PC remote control (* Depending on version) 100W 2. 5ms/Div Highly stable transmitter For a big, clear signal, the IC-707 uses two 2SC5125 transistors in the PA Unit. Along with superior IMD characteristics, these transistors have plenty of power to allow for 100W full duty cycle operation. Advanced design considerations along with an aluminum, die-cast frame, and large cooling fan, help to stabilize the PA circuit providing full duty cycle operation. Adjustable noise blanker Reduce annoying QRN from pulse-type noise such as engine ignition systems and sparking appliance motors, with the fully adjustable (101 steps) noise blanker. High stability crystal unit The IC-707 incorporates a high-stability master oscillator, providing ±0. 5ppm (­10ºC to +50ºC). A must for RTTY, SSTV or MARS operation. Digital voice recorder The Digital Voice Recorder (DVR) is a very convenient function for contests, DXpeditions and even normal operation. Record your callsign, CQ, or other station information into four memory locations. A total of 90 seconds is available for the four memories, with each memory channel being soft partitioned to allow custom recording sizes. A quick push of the front-panel DVR button allows you to record received signal into the R4 memory. The playback automatically mutes the receiver for clear playback of the previous 15 seconds of recorded audio. The perfect feature for those contest operators wanting to improve their UBN. Digital voice recorder Crystal oscillator Triple band stacking register Hop around the band with Icom's exclusive triple band stacking registers. Each band remembers the last 3 frequencies, mode and other settings used. SSB data communication When the IF filter passband is reduced to 500Hz or less in SSB/SSB data mode, special bandpass filters are automatically selected. [. . . ] Each band remembers the last 3 frequencies, mode and other settings used. SSB data communication When the IF filter passband is reduced to 500Hz or less in SSB/SSB data mode, special bandpass filters are automatically selected. The BPF automatically sharpen for better rejection of interfering signals. Along with the BPF, the IC-707 automatically turns off the compression and enables the 1/4-tuning step for easier operation and more accurate tuning. Perfect for PSK31, SSTV or other AFSK modes. CW memory keyer A must have feature for the CW operator, the internal memory keyer provides 4 memories for programming station information, calling CQ and callsign. [. . . ]