Icom IC-751 Инструкция по эксплуатации онлайн [12/37] 68913

Содержание

• Ic 75h 1
• Ic 75h 2
• General 4
• Receiver 4
• Section 1 specifications 4
• Transmitter 4
• All band all mode all solid state 5
• Dual vfo 5
• General coverage receiver capability 5
• Memories 5
• Other features 5
• Outstanding receiver performance 5
• Section 2 features 5
• Transmitter 5
• 1 unpacking 6
• 2 recommendations for 6
• 3 power supply 6
• Be sure to read the following instructions carefully before operation 6
• Installation 6
• Section 3 installation 6
• 10 headphones 7
• 4 antenna 7
• 5 ground 7
• 6 microphone 7
• 8 cw key 7
• 8 rtty 7
• 9 external speaker 7
• 1 front panel 8
• 11 cooling fan 8
• By the monitor curcuit the fan will operate during both 8
• Cause of the overheating before starting to transmit again 8
• Cooling but with 200 watts input the final stage produces 8
• If the temperature rises to a danger limit 90 c the fan 8
• Mit modes 8
• Of the final stage the fan operates as follows 8
• Overheating i e antenna mismatch etc and correct the 8
• Perature monitoring circuit which monitors the temperature 8
• Plug inserted completely only the headphone works 8
• Power is reduced to 50 watts investigate the cause of 8
• Prolonged transmissions the fan is connected to a tem 8
• Quite a bit of heat and its temperature may rise during 8
• Section 4 operating controls 8
• The fan does not operate both in the receive and thans 8
• The headphone will lose the sound on one side with the 8
• The rear of the pa unit is designed to provide for adequate 8
• Transmit and receive to provide additional cooling 8
• Using a tape recorder connected to the headphone jack 8
• When the temperature rises to a point 50 c detected 8
• Will run much more rapidly at this time the output 8
• With a stereo headphone set inserted this way however 8
• 2 top cover 13
• 3 rear panel connections 13
• And attenuator are removed from the circuit and incoming 13
• Anti vox circuit with this control along with the vox 13
• Anti vox control 13
• Attenuation 13
• Calibrates the marker frequency with a standard frequency 13
• Controls the audio level of the monitoring ssb or cw side 13
• For normal operation leave this switch in the off 13
• Gain control so that the vox circuit only operates by the 13
• In vox operation the vox circuit may be operated by 13
• Marker calibrator 13
• Marker switch 13
• Monitor level control 13
• Operator s voice not by sound from the speaker 13
• Position 13
• Preamp att attenuator switch 13
• Put in the rf circuit and provides higher sensitivity 13
• Quency is available on every 10khz 13
• Signals will be fed to the receiver directly 13
• Sound from the speaker causing a switch to transmit this 13
• Such as the wwv 13
• Switches rf preamplifier and attenuator in the rf circuit 13
• The attenuator into the circuit this gives about 20db 13
• The switch in the pre position and the preamplifier is 13
• This removes the preamplifier from the circuit and inserts 13
• Tone when the monitor switch on the front panel is 13
• Trouble can be prevented by adjusting the input level of the 13
• Turned on adjust the control for comfortable monitoring 13
• Turns the marker circuit on or off the marker fre 13
• Very strong signal set this switch in the att position 13
• When nearby signals interfere with reception or receiving a 13
• When the switch is in the off position both preamplifier 13
• When using a small antenna or receiving a weak signal set 13
• 1 how to tune 15
• Section 5 operating instructions 15
• N n n 1 19
• 2 memory channel operation 20
• 3 tuning by up down buttons on 22
• The microphone 22
• 4 scanning operation 23
• 5 ssb operation 24
• 6 cw operation 26
• 7 rtty operation 27
• 8 am operation 28
• 9 fm operation 28
• 10 general coverage receiver 29
• 11 other operations 29
• 1 installation of optional filter 31
• Section 6 option installation 31
• 2 built in power supply unit 32
• Ic ps35 32
• Ic ом 37

Похожие устройства

• Ardo DWB09L6X Инструкция по эксплуатации
• Icom IC-756 Инструкция по эксплуатации
• Ardo FLOI86E Инструкция по эксплуатации
• Samsung GT-C3322 Metallic Black chat on Инструкция по эксплуатации
• Icom IC-756PRO Инструкция по эксплуатации
• Ardo FLOI147L Инструкция по эксплуатации
• Samsung GT-S5222 Black Инструкция по эксплуатации
• Icom IC-756PROII Инструкция по эксплуатации
• Ardo FLOI126L Инструкция по эксплуатации
• Nokia Asha 305 Dark Grey Инструкция по эксплуатации
• Icom IC-756PROIII Инструкция по эксплуатации
• Ardo FLOI106S Инструкция по эксплуатации
• Texet TX-D6205A Black Инструкция по эксплуатации
• Icom IC-775DSP Инструкция по эксплуатации
• Ardo DWC06S5B Инструкция по эксплуатации
• Icom IC-207H Инструкция по эксплуатации
• Ardo DWC06E3W Инструкция по эксплуатации
• Texet TX-D6205A Black/Red Инструкция по эксплуатации
• Icom IC-2100H Инструкция по эксплуатации
• Ardo FLSN 103 EW Инструкция по эксплуатации

43 FREQUENCY DISPLAY The frequency of the IC 751 is displayed on a luminescent display tube Since the 1 MHz and 1 KHz decimal points are displayed the frequency can easily be read The frequency indicated is the carrier frequency of each mode in USB LSB CW AM and FM and the mark frequency in RTTY The FREQUENCY DISPLAY shows not only the operating frequency but also mode duplex split frequency mode selected VFO or memory channel RIT XIT functions and their shifted frequency and the set is in SCAN mode and in HAM band or GENERAL COVERAGE mode Shows that the set is in the HAM BAND mode or GENERAL COVERAGE mode When the set is in the GENERAL COVERAGE mode the letters GENE are shown here Shows that the set is in the DUPLEX SPLIT FRE QUENCY mode or not When the set is in the DU PLEX mode the letters DUP are displayed here Shows that the set is in the SCAN mode or not When the set is in the SCAN mode the letters SCAN are displayed here 44 VFO SWITCH Selects either VFO A or B for tuning Each push of this button selects VFO A and B alternately 45 VFO EQUALIZING SWITCH Instantly sets the frequency mode and HAM GENE opera tion of a VFO to the same as those of the other VFO Shows operating frequency in 6 digits between 10MHz and 100Hz Shows selected VFO VFO A or VFO B Shows operating mode one of FM AM CW USB LSB and RTTY 4 Shows that the set is in the MEMORY CHANNEL MODE or not and the selected memory channel number When the set is in the MEMORY CHANNEL MODE the letters MEMO are displayed here Shows that the RIT and XIT are ON or OFF and their shifted frequency When the RIT and or XIT are ON the letters RIT and or XIT are displayed here When both the RIT and XIT are OFF any lettersand shifted frequency are no longer displayed 9 46 DUPLEX SPLIT SWITCH Selects the relationship of the two VFO s In the OFF position one VFO is for both receive and transmit By pushing in this switch one VFO is for receive and the other VFO is for transmit 47 VFO MEMORY SWITCH Switches the VFO operation and MEMORY CHANNEL operation 48 MEMORY WRITE BUTTON By pushing this button a displayed frequency mode and HAM GENE operation are stored into a memory channel displayed on the frequency display 49 FREQUENCY TRANSFER BUTTON In the VFO operation the frequency mode and HAM GENE operation stored in a memory channel displayed its channel number on the frequency display are transfer to the selected VFO