Icom ic-f5021 Service Manual

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Contents

Icom ic-f5021 Service Manual Manual pdf 20 page image

6 - 56-3 TRANSMIT ADJUSTMENT1) Select an adjustment item using cursor or [↑] / [↓] keys of the PC’s keyboard.2) Set or modify the adjustment value as specified using [←] / [→] keys of the PC’s keyboard, then push the [ENTER] key.ADJUSTMENT ADJUSTMENT CONDITION OPERatio VALUEOUTPUTPOWER[Power (Hi)]1 • Channel : 1-4• TransmittingConnect an RF power meter to the an-tenna connector.25 W[25W ver.]50 W[50 W ver.][Power (L2)] 2 • Channel : 1-5• Transmitting10 W[25W ver.]25 W[50 W ver.][Power (L1)] 3 • Channel : 1-6• Transmitting2.5 W[25W ver.]5.0 W[50 W ver.]MODULATIONBALANCE[BAL]1 • Channel : 1-7• No audio signals applied to the JIG cable.• Set a modulation analyzer as;HPF : OFFLPF : 20 kHzDe-emphasis : OFFDetector : (P–P)/2• Transmitting.Connect the Modulation Analyzer withan oscilloscope to the antenna connec-tor through an attenuator.Set to squarewaveformDEVIATION- P R E PA R A -TION-1 • Connect an audio generator to the JIGcable and set as;Frequency : 1.0 kHzLevel : 40 mVrms• Set the modulation analyzer to thesame condition as “MODULATION BAL-ANCE.”Connect a Modulation Analyzer with anoscilloscope to the antenna connectorthrough an attenuator.–(NARROW)[MOD N]2 • Channel : 1-8• Transmitting ±2.05 to ±2.15 kHz(WIDE)[MOD Ratio]3 • Channel : 1-9• Transmitting±4.05 to ±4.15 kHz(MIDDLE)*[MOD Ratio]4 • Channel : 1-10• Transmitting±3.25 to ±3.35 kHzCTCSS/DTCSDEVIATION[CTCSS/DTCS]1 • Channel : 1-11• No audio signals applied to the JIG cable.• Set the Modulation Analyzer to thesame condition as “MODULATION BAL-ANCE.”• TransmittingConnect a Modulation Analyzer with anoscilloscope to the antenna connectorthrough an attenuator.±0.65 to ±0.75 kHz*: [EUR] only