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RF/SQUELCH CONTROL
• Adjusts the RF gain and squelch threshold level.
– The squelch removes noise output from the speaker (closed
condition) when no signal is received.
• The squelch is particularly effective for FM. It is also available for
other modes.
• 12 to 1 o’clock position is recommended for any setting of the
[RF/SQL] control.
• The control can be set as ‘Auto’ (RF gain control in SSB, CW and
RTTY; squelch control in AM and FM) or squelch control (RF gain is
fixed at maximum) in set mode as follows.
Содержание IC-746PRO
Страница 2: ...Front Panel Rear Panel ...
Страница 3: ...Rear Panel Front Panel ...
Страница 4: ...POWER Connector Accepts 13 8 V DC through the supplied DC power cable OPC 025D ...
Страница 5: ...TX Indicator Lights red while transmitting ...
Страница 6: ...RX Indicator Lights green while receiving a signal and when the squelch is open ...
Страница 11: ...AH 4 Connector Connection for the AH 4 Automatic Antenna Tuner ...
Страница 12: ...ACC Connectors Connectors used for Accessories ...
Страница 18: ...Key Jack Rear Jack to be used for Keying via a Straight Key or Computer ...
Страница 19: ...Data Connector Data connection for Packet operation ...
Страница 34: ...PBTC Clears the Twin PBT settings when pushed for 1 sec ...
Страница 37: ...Advanced Twin PBT Graphs ...
Страница 39: ...LCD Breakdown ...
Страница 41: ...RIT Readout Shows the RIT or TX frequency offset ...
Страница 42: ...VFO Readout Indicates whether VFO A or VFO B is selected ...
Страница 45: ...RIT Readout Shows the RIT or TX frequency offset ...
Страница 46: ...Antenna Readout Display outlines the antenna being used Mode and Voice Scanning Conditions ...
Страница 50: ...AH 4 Antenna Tuner Installation ...
Страница 55: ...Common Functions Shows the status of commonly used functions ...
Страница 78: ...MONITOR Set Mode Enters to monitor set mode when pushed for 1 sec ...
Страница 82: ...MICROPHONE CONNECTOR Accepts the supplied or optional microphone ...
Страница 83: ...AF RF SQUELCH CONTROL Concentric control for the AF Control and RF Squelch ...
Страница 84: ...AF CONTROL Inner control varies the audio output level from the speaker or Headphone outputs ...
Страница 89: ...ELECTRONIC CW KEYER SPEED Adjusts the internal electronic CW keyer s speed 6 wpm min to 60 wpm max can be set ...
Страница 93: ...NR NOTCH CONTROL Concentric control for the Noise Reduction and Manual Notch features ...
Страница 112: ...Fine F Scan During F scan when a signal is received scan continues but the tuning step is temporarily set to 10 Hz ...
Страница 114: ...Fine Scanning There are two types of Fine Scanning Fine Program Scan Fine DF Scan ...
Страница 115: ...Select Memory Scanning Select memory scan searches through memory channel set as select for signals ...
Страница 116: ...SPAN Sets the F span by pushing 5 kHz 10 kHz 20 kHz 50 kHz 100 kHz 500 kHz and 1 MHz are selectable ...
Страница 118: ...Scan Speed Rotate the tuning dial to select scan speed from high and low HIGH scan is faster LOW scan is slower ...
Страница 137: ...Band Scope View ...
Страница 142: ...Memory Keyer Function Map ...
Страница 158: ...SSB Selects USB and LSB mode alternately Selects SSB data mode USB D LSB D when pushed for 1 sec in SSB mode ...
Страница 160: ...AM FM Selects AM and FM mode alternately Selects AM FM data mode AM D FM D when pushed for 1 sec AM FM mode ...