User manual ICOM IC-A20

[. . . ] If you experience a ringing in your ears, reduce the volume level or discontinue use. SAVE THIS INSTRUCTION MANUAL -- This instruction manual contains important operating instructions for the IC-A20. EXPLICIT DEFINITIONS The explicit definitions below apply to this instruction manual. DEFINITION Personal injury, re hazard or electric shock RWARNING may occur. CAUTION NOTE Equipment damage may occur. No risk of personal injury, re or electric shock. [. . . ] 8) NOTE: Optional functions vary with transceiver version. In this manual, optional functions are indicated by " " Icon. 2 When Memory mode is selected; ·Push and hold this switch for 5 sec. to turn the "Memory name write mode" ON. 1 PANEL DESCRIPTION t TX INDICATOR (p. Shows the channel name when the memory name function is selected. 10) y u VOLUME LEVEL INDICATORS Shows the AF volume level(while receiving). i SET MODE INDICATOR Appears when the Initial set mode is selected. 12) o LOCK OUT INDICATOR Appears when the channel is set as a `LOCK OUT' channel. 8) !0 MEMORY CHANNEL INDICATOR Indicates the selected memory channel number `Pr' appears when the priority channel is selected. I Function display q w e r !1 o i u q MEMORY MODE INDICATOR (p. 5) Appears when memory mode is selected. 7) Indicates when the dualwatch function is activated. 17) Regular tuning selected I LCD backlight control The backlight of the can be set OFF, Low or High. Push [DIAL] to toggle the backlight control; OFF, Low or High are available. 5 NOTE: Large tuning steps should be used only when you want to change the frequency in large increments. Please select regular tuning steps for normal operation. SCAN OPERATION I Scan operation q Push [V/M] to select memory mode or VFO mode, if necessary. · " MR " appears on the memory mode. 3 highest frequency · VFO scan Repeatedly scans all frequencies over the entire band. (eg 25 kHz or 8. 33* kHz) *Except USA version lowest frequency Start Scan Jump w Make sure the squelch level is set to the threshold point. · Set a squelch level (01 to 25) where the noise is muted. e Push [SCAN] to start scan. · To change the scan direction, turn [DIAL]. · "SCAN (or P SCAN)" flashes while scaning. r Push [SCAN] again to stop the scan. NOTE: Normal scan or Priority scan is pre-programmed by cloning. Please ask your dealer or system operator for details. ï PRIORITY SCAN ·Priority memory scan While scaning on a memory mode, priority watch checks for a signal on the selected priority channel every 250 m sec except lockout channel. 250 msec. Priority ch SKIP 250 msec. Mch 1 Mch 2* Mch 3 Mch 20 *: Lockout ch ï NORMAL SCAN ·Memory lock scan Repeatedly scans memory channels except skip (lockout) channels. Mch 1 Mch 2* Mch 3 Mch 20 250 msec. SKIP *: Lockout ch 6 3 SCAN OPERATION I On­hook scan On­hook scan (Hanger scan) is available when taking the microphone from its hanger (off­hook) and /or returning it into the hanger (on­hook). w When receiving a signal, scan pauses until the signal disappears. · You can converse by taking the microphone from the hook. e Place the microphone on the hook to restart scanning. [. . . ] · "CL-OUT" appears in the master transceiver's display. · "CL-IN" appears automatically in the slave transceiver's display. e When cloning is finished, turn power OFF, then ON again to exit cloning mode. 14 8 SPECIFICATIONS D Receiver : 118 to 136. 975 MHz : 25 kHz or 25/8. 33* kHz : AM (6K00A3E) : 20 : 13. 75* V or 27. 5* V DC *Automatic selection D General · Frequency coverage · Channel spacing · Mode · Number of memory channels · Acceptable power supply (negative ground) · Receive system · Intermediate frequencies ·Sensitivity (at 6dB S/N) · Squelch sensitivity (at threshold) : Double conversion superheterodyne : 1st 38. 85 MHz 2nd 450 kHz : Less than 1 µV (pd) : Less than 0. 35 µV (pd) · Usable temp. range : ­30°C to +60°C · Frequency stability : ±5 ppm · Current drain (at 13. 75 V DC): Tx 5 A (max. ) Rx 4 A ( at AF max. ) 0. 5 A (at STAND BY) · Dimensions : 150 (W)50 (H)180 (D) mm (projections not incl. ) 529/32(W)131/32(H)73/32(D) in · Weight : 1. 5 Kg; 3 lb 5 oz · Selectivity 25 kHz ch. [. . . ]