User manual ICOM IC-32A

[. . . ] 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. This will obstruct heat dissipation. Place unit in a secure place to avoid inadvertent use by children. RNEVER apply more than 16 V DC, such as a 24 V battery, to the [DC13. 8V] jack on the receiver rear panel. This could cause a fire or ruin the receiver. RNEVER let metal, wire or other objects touch any internal part or connectors on the rear panel of the receiver. [. . . ] The noise blanker is not available for FM mode. Push the [NB] switch to turn the noise blanker ON or OFF. · When using the noise blanker, received signals may be distorted if they are excessively strong. · The noise blanker function in AM mode can be deactivated depending on set mode setting. 31) [NB] 15 5 RECEIVE FUNCTIONS s Preamp The preamp amplifies received signals in the front end circuit to improve the S/N ratio and sensitivity. Turn this function ON when receiving weak signals. PREAMP 1 USB RX ANT 1 9 20 40 60dB AGC VFO BLANK Push [P. AMP] to toggle between preamp-1 and preamp-2 or turn the preamp OFF. S1 3 5 7 "PREAMP" appears while the preamp is activated. s Attenuator The attenuator prevents desired signals from distorting when very strong signals are near the desired frequency or when very strong electric fields, such as from broadcasting stations, are near your location. Push [ATT] toggle the 20 dB attenuator function ON and OFF. · "ATT" appears when the attenuator is turned ON. USB RX ATT S1 3 5 7 9 20 ANT 1 40 60dB AGC VFO BLANK "ATT" appears while the attenuator is activated. s AGC time constant The AGC (Automatic Gain Control) controls receiver gain to produce a constant audio output level even when the received signal strength is varied by fading, etc. Use AGC slow for normal phone operation; AGC fast for receiving data and searching for signals. Push [AGC] momentary to toggle the AGC time constant between fast and slow. · "F. AGC" appears when the fast time constant is selected. · "AGC" appears when the slow time constant is selected. USB RX ANT 1 S1 3 5 7 9 20 40 60dB F. AGC VFO BLANK "F. AGC" appears when the fast time constant is selected. Push [AGC] for 2 sec. Optional filters are not selected by default. FL-96 FL-222 FL-257 2. 8 kHz/­6 dB SSB-W 1. 8 kHz/­6 dB SSB-N 3. 3 kHz/­6 dB SSB-W · Filter construction 9 MHz IF filter FL-23 (15 kHz) 2nd IF signal Mixer 455 kHz IF filter CFWS450E (15 kHz) CFWS450HT (6 kHz) FL-65 (2. 4 kHz) 3rd IF signal FL-272 (2. 4 kHz) FL-103 (2. 8 kHz) FL-223 (1. 9 kHz) FL-100 (500 Hz) FL-232 (350 Hz) FL-101 (250 Hz) optional FL-257 (3. 3 kHz) FL-96 (2. 8 kHz) FL-222 (1. 8 kHz) FL-52A (500 Hz) FL-53A (250 Hz) optional 18 RECEIVE FUNCTIONS 5 s Filter set mode When an optional filter is installed, set the optional filters in filter set mode. Optional filters are not selected by default. ·9 MHz normal filter selection USB D Optional filter setting q Push [FIL] for 2 sec. to enter filter set mode. · If a blank memory channel has been selected, push [V/M] to select VFO mode in advance. ·455 kHz normal filter selection USB w Push [UP Y] or [Z DN] one or more times until "oP1" appears for 9 MHz IF filter setting or "oP2" appears for 455 kHz IF filter setting. e Rotate the tuning dial to select the installed filter. · "No, " "100, " "101, " "103, " "223" and "232" indicate no optional filter, FL-100, FL-101, FL-103, FL-223 and FL-232, respectively for 9 MHz IF filter selection. · "No, " "52A, " "53A, " "96, " "222" and "257" indicate no optional filter, FL-52A, FL-53A, FL-96, FL-222 and FL-257, respectively for 455 kHz IF filter selection. ·9 MHz narrow filter selection N USB ·455 kHz narrow filter selection* N USB r Push [FIL] to exit filter set mode. D Wide/narrow filter setting q Push [FIL] for 2 sec. to enter filter set mode. · If a blank memory channel has been selected, push [V/M] to select VFO mode in advance. ·9 MHz wide filter selection W USB w Select the desired mode with the mode switches. e Push [UP Y] or [Z DN] one or more times to select the desired width 9 MHz or 455 kHz IF filter. · Wide or narrow mode can be deactivated when 9 MHz wide or narrow filter is set to `OFF. ' · 455 kHz wide or narrow filter selection does appear when 9 MHz wide or narrow filter is set to `OFF. ' ·455 kHz wide filter selection* W USB ·Expanded filter selection ON/OFF USB r Rotate the tuning dial to select a filter. t Repeat steps w and r to select IF filters for other modes, if desired. · The filter combinations are stored depending on operating modes. ·9 MHz normal filter selection USB y Push [FIL] to exit filter set mode. D Expanded filter selection ON/OFF The selectable filter combinations can be expanded by setting the expanded filter selection to ON. to enter filter set mode. · If a blank memory channel has been selected, push [V/M] to select VFO mode in advance. ·455 kHz normal filter selection USB w Push [UP Y] or [Z DN] one or more times until "EXP" appears. e Rotate the tuning dial to turn the expanded filter selection ON/OFF. · If `ON' is selected, the expanded filter selection can be used. * 455 kHz wide or narrow filter selection does appear when 9 MHz wide or narrow filter is set to `OFF. ' r Push [FIL] to exit filter set mode. 19 5 RECEIVE FUNCTIONS s Optional noise reduction function When an optional UT-106 is installed (DSP appears in the function display), noise reduction function can be used. [. . . ] 34 w Replace the circuitry fuse as shown in the diagram at right. e Replace the top cover. FGB 3 A s Clock backup battery replacement The receiver has a lithium backup battery (CR2032) inside for clock and timer functions. The usual life of the backup battery is approximately 2 years. When the backup battery is exhausted, the receiver receives normally but cannot retain the current time. CR2032 37 12 SPECIFICATIONS D Receiver : 0. 03­60. 000000 MHz* · Receive system : Triple-conversion superheterodyne system D General · Frequency coverage * 0. 03­29. 999999 MHz only for Asia version; 0. 03­29. 999999 and 50. 0­52. 0 MHz for Denmark version; specifications guaranteed 0. 1­29. 99 MHz and 50­54 MHz only · Intermediate frequencies: Mode USB*/LSB* CW* RTTY* AM*/S-AM FM 1st (MHz) 69. 0115 69. 0106 69. 0105 69. 0100 69. 0115 2nd (MHz) 9. 0115 9. 0106 9. 0105 9. 0100 9. 0115 3rd (kHz) 455 455. 9 456 450 450 · Mode · Number of memory channels · Frequency stability : USB, LSB, CW, RTTY, AM, S-AM, FM : 101 (99 regular, 2 scan edges) : Less than ±7 ppm from 1 min. [. . . ]