User manual ICOM IC-R1

[. . . ] AVOID placing the receiver in excessively dusty environments or in direct sunlight. AVOID placing the receiver against walls or putting anything on top of the receiver. Information overheard but not intended for you cannot lawfully be used in any way. RNEVER connect the receiver to an AC outlet directly. Always use the supplied AC adapter or connect to a 13. 8 V DC power source. [. . . ] FM-narrow can only receive narrow FM signals; normal FM can receive both normal and narrow FM signals. Signals however, may be received with interference. FM narrow 5. 5 kHz/­6 dB medium 5. 5 kHz/­6 dB AM wide 12 kHz/­6 dB narrow 2. 2 kHz/­6 dB USB Shortwave broadcasting, amateur bands, etc. Use USB for normal SSB reception; LSB is not normally used. SSB LSB 2. 2 kHz/­6 dB normal 2. 2 kHz/­6 dB CW narrow 500 Hz/­6 dB (option) 150 kHz/­6 dB Morse code communications. TV and FM broadcasting cannot be accessed in FM mode because their signals are too wide. WFM 13 RECEIVE FUNCTIONS 4 s Squelch function The IC-R1 has 2 types of squelch, noise squelch and S-meter squelch. Noise squelch: Only acts on noise; has good sensitivity. Strong signals exceeding a certain level will always cause the squelch to open. S-meter squelch: S-meter squelch does not open for weak signals but can be adjusted to open for signals over a wide range of strengths. Once you have selected a threshold point in a range, the IC-R1 will open for all signals above this point. To adjust the squelch, rotate [SQUELCH]. · Clockwise rotation closes the squelch (sets the threshold point higher); counterclockwise rotation opens the squelch (for reception of weak signals). S-meter squelch threshold Noise squelch threshold (not available in SSB, CW, WFM and AM narrow modes) · Signals below the S-meter level are muted. When [SQUELCH] is rotated past center, the S-meter shows the signal strength needed to open the squelch. S 1 3 5 7 9 +20dB +60dB SIGNAL s Functions for FM D Center indicator FM signals have a wide bandwidth which makes them easy to receive. The IC-R1's offcenter indicators appear in such cases, making it easy to fine tune to the center of the frequency. RECV One of these indicators appears when the received signal is off-center. D AFC AFC stands for automatic frequency control. The AFC circuit automatically compensates the tuning when a receive frequency drifts or goes off frequency. When one of the off-center indicators appears, the IC-R1 can adjust the receive frequency automatically--when the AFC function is turned ON and an off-center frequency is received, the frequency in the display automatically changes to reflect the center of the signal. AFC RECV When one of these indicators appears, the displayed frequency is automatically moved to the center frequency. s Functions for SSB/CW D IF shift The IF shift function electronically changes the center of the IF (intermediate frequency) passband frequency to reject interference. The IF shift is not available in FM and AM modes. APF IF SHIFT APF IF SHIFT APF IF SHIFT Adjust the [SHIFT] control for a minimum interference signal level. · The audio tone may be changed while the IF shift is in use. Set the shift control to its center position when there is no interference. Shifts low Center Shifts high 14 4 RECEIVE FUNCTIONS D Noise blanker The noise blanker reduces pulse-type noise such as that generated by automobile ignition systems. while scan is paused, the displayed frequency is programmed into this bank regardless of the selected bank. Deleted channels (contents have been cleared) are stored in this bank until being assigned to another bank. This bank does not appear when no channel are assigned. AUTO 100 memories SKIP FREE PROG 100 memories Blank Memorize scan edge frequencies. 10 pairs of scan edges (0P1 to 9P2) are pro20 memories (fixed) grammable (upper and lower scan edges). Mode and tuning step are automatically equalised to the last programmed channel in a pair. s Bank selection To select regular channel banks: Push [M-CH · BANKv] or [ENT · BANKw], one or more times to select the desired channel bank. · The bank indicator shows the selected bank. · Push and hold [BANKv] or [BANKw] to quickly cycle through the channel banks in the order to , FREE, AUTO and SKIP. USR-A USR-B BANK BANK BANK BLANK . ;, BLANK M-CH BANK NOTE: The FREE bank is initially blank and therefore cannot be selected. In order to select it at least 1 channel must be programmed into the FREE bank. 21. USR-T FREE AUTO SKIP BANK BANK BANK BLANK BANK BLANK BLANK BLANK ENT ENT Convenient: Bank names The default names of "USR-A" to "USR-T" can be set to your own preference. 20 for programming. To select the programmed scan edge: Push [PROG] for 1 sec. · PROG and channel number (0P1 to 9P2) appear. PROG *NONAME* 17 MEMORY CHANNELS 5 s Channel selection D Using the [M-CH] selector Select the desired bank using [M-CH · BANKv] or [ENT · BANKw]. [BANK ] [BANK ] Rotate the [M-CH] selector to select the desired channel. · Bank limit function While rotating the [M-CH] selector, memory channels can be selected from within the current bank only; or from any bank. Push [BANK] to toggle the bank limit function ON and OFF. [M-CH] selector Convenient: Automatic bank limit When starting memory scan, the bank limit function is activated automatically. [. . . ] · The operating frequency is lower than · Set the frequency above 30 MHz when p. The frequency is not announced when pushing [SPCH]. FRONT PANEL CONTROL LOCK in quick set p. 31 · The memory channel was changed be- · Push [MW] for 1 sec. · An optional UT-102 UNIT is not installed. VOICE SYNTHESIZER · Install the UT-102. p. [. . . ]