Icom IC-F4029SDR Service Manual

Also see for IC-F4029SDR: Instruction manual Instruction manual Instruction manual

Contents

5 - 65-4 RECEIVE ADJUSTMENTSelect an adjustment item using [↑] / [↓] keys, then set to the specified value using [←] / [→] keys on the connected PC’s keyboard.ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUEUNIT LOCATIONRECEIVESENSITIVITY[BPF (T1)][BPF (T2)]NOTE: “RECEIVE SENSITIVITY” must be adjusted before “S-METER.” Otherwise, “S-METER” will not beadjusted properly.1 • Channel : 1-5 [MIC/SP]jackConnect the SINAD meterwith an 8 Ω load to the JIGcable.Minimum distortionlevel• Connect the SSG to RF connector (PA-CUNIT; J701) and set as;FrequencyLevelModulationDeviation• Receiving: 400.000 MHz: +20 dBμ† (–87 dBm): 1 kHz: ±3.5 kHzCONVENIENT:The “RECEIVE SENSITIVITY” can be adjusted automatically.1: Put the cursor on “BPF ALL,” then push [Enter] key.2: The connected PC tunes BPF’s to peak levels automatically.S-METER[RSSI]1 • Channel : 1-1 Push the [Enter] key on the connected PC’s keyboard to set “S3”level.• Connect the SSG to RF connector (PA-CUNIT; J701) and set as;FrequencyLevelModulationDeviation• Receiving: 466.006250 MHz: +23 dBμ† (–84 dBm): 1 kHz: ±3.5 kHz2 • Set the SSG as;Level• Receiving: –7dBμ† (–114 dBm)Push the [Enter] key on the connected PC’s keyboard to set “S1”level.SQUELCH[SQL]1 • Channel : 1-1 [MIC/SP]jackConnect an 8 Ω speaker tothe JIG cable.Set the [SQL] to thevalue that the audiosignals just appears.• Close the squelch by adjusting the value of[SQL] item on the CS-F4029 ADJ’s screen.• Connect the SSG to RF connector (PA-CUNIT; J701) and set as;FrequencyLevelModulationDeviation• Receiving: 466.006250 MHz: –14 dBμ † (–121 dBm): 1 kHz: ±3.5 kHz†; The output level of the standard signal generator (SSG) is indicated as the SSG’s open circuit.