Icom IC-F620 Service Manual

Also see for IC-F510: Instruction manual Instruction manual Instruction manual Service manual Instruction manual

Contents

Icom IC-F620 Service Manual Manual pdf 15 page image

5 - 45-3 SOFTWARE ADJUSTMENTSelect an operation using [↑] / [↓] keys, then set specified value using [←] / [→] keys on the connected computer keyboard.1123112• Operating freq. : 430.000 MHz [L]490.000 MHz [M]520.000 MHz [H]• Output power : Low1• Connect the RF power meter or 50 Ωdummy load to the antenna connector.• Transmitting• Operating freq. : 400.000 MHz [L]440.000 MHz [M]480.000 MHz [H]• Output power : High• Transmitting• Output power : Low2• Transmitting• Output power : Low1• Transmitting• Operating freq. : 415.000 MHz [L]465.000 MHz [M]500.000 MHz [H]• Output power : Low1• Push [P0] key while transmitting• Operating freq. : 415.000 MHz [L]465.000 MHz [M]500.000 MHz [H]• Output power : Low1• IF bandwidth : Wide• Connect an audio generator to the [MIC]jack through the JIG cable and set as:1.0 kHz/40 mVrms• Set an FM deviation meter as:HPF : OFFLPF : 20 kHzDe-emphasis: OFFDetector : (P–P)/2• Transmitting• IF bandwidth : Narrow• Transmitting• Operating freq. : 415.000 MHz [L]465.000 MHz [M]500.000 MHz [H]• Output power : Low1• IF bandwidth : Wide• CTCSS : 88.5 Hz• DTCS code : 007• Set the FM deviation meter as:HPF : OFFLPF : 20 kHzDe-emphasis: OFFDetector : (P–P)/2• No audio applied to the [MIC] connector.• TransmittingREFERENCEFREQUENCY[TXF]OUTPUTPOWER[Power (Hi)][Power (L2)][Power (L1)]MODULATIONBALLANCE[Ballance]FMDEVIATION[MOD W][MOD N]CTCSS/DTCSDEVIATON[CTCS/DTCS]RearpanelRearpanelRearpanelRearpanelRearpanelLoosely couple a frequnecycounter to the antenna connec-tor.Connect an RF power meter tothe antenna connector.Connect an FM deviation meterwith an oscilloscope to theantenna connector through anattenuator.Connect an FM deviation meterto the antenna connectorthrough the attenuator.Connect an FM deviation meterto the antenna connectorthrough the attenuator.430.0000 MHz [L]490.0000 MHz [M]520.0000 MHz [H]25.0 W [25W]45.0 W [45W]10.0 W [25W]25.0 W [45W]2.5 W [25W]4.5 W [45W]±4.1 kHz [N/W]±3.3 kHz [N/M]±2.1 kHz±0.70 kHz [N/W]±0.56 kHz [N/M]ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUEUNIT LOCATIONSet to square waveform