Icom IC-751 [5/37] Memories

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

SECTION 2 FEATURES ALL BAND ALL MODE ALL SOLID STATE The IC 751 covers all the Amateur HF frequencies from 1 8MHz to 29 9999MHz including the new three bands of 10MHz 18MHz and 24MHz It offers not only SSB but also CW AM FM and RTTY All of the circuits in the IC 751 including the driver and final power stages are completely solid state and provide about 100 watts output GENERAL COVERAGE RECEIVER CAPABILITY The IC 751 has capabilities for an all amateur band transceiver as well as a general coverage receiver between 100KHz and 30MHz with continuous tuning The Up conversion system using a high side IF and Microcomputer Control System make these capabilities possible In addition to these the low pass filters and the band pass filters are selected by an electric signal from the CPU and it makes a no tune up system DUAL VFO Dual VFO s controlled by a large tuning knob provide easy access to split frequencies used in DX operation Normal tuning rate is in 10Hz increments and increasing the speed of rotation of the main tuning knob shifts the tuning to 100Hz incre ments automatically Pushing the tuning speed button gives 1 KHz tuning Digital outputs are available for computer control of the transceiver frequency and functions and for a synthesized voice frequency readout 32 MEMORIES Thirty two tunable memories are provided to store mode HAM GENERAL COVERAGE mode and frequency and the RAM is backed up by an internal lithium memory backup battery to maintain the memories for up to seven years Scanning of frequencies memories and bands are possible from the unit or from the IC HM12 scanning microphone In the Mode S mode only those memories with a particular mode are scanned others are bypassed Data may be transferred between VFO s from VFO to memories or from memories to VFO OUTSTANDING RECEIVER PERFORMANCE Utilizing an ICOM developed J FET DBM the IC 751 has a 105dB dynamic range The 70 4515MHz first IF virtually eliminates spurious responses and a high gain 9 0115MHz second IF with ICOM s PBT selectivity A deep IF notch filter adjustable AGC and noise blanker can be adjusted to eliminate the woodpecker audio tone control plus RIT with separate readout provides easy to adjust clear reception even in the presence of strong QRM or high noise levels A low noise receiver preamp provides exceptional reception sensitivity as required TRANSMITTER The transmitter features high reliability transistors in a low IMD 32dB 100W full 100 duty cycle internal cooling fan standard 12 volt DC design Quiet relay selection of transmitter LPF s transmit addio tone control monitor circuit to monitor your own CW or SSB signal XIT and a high performance speech processor enhance the IC 751 transmitter s opera tion For the CW operator semi break in or full QSK is provided for smooth fast break in keying OTHER FEATURES All of the above features plus full function metering SSB and FM squelch convenient large controls a large selection of plug in filters and a new high visibility multi color flourescent display that shows frequency in white and other functions in white or red make the IC 751 your best choice for a superior grade HF base transceiver 2