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Cerner Build Manual, Gravograph Cutter Grinder Manual, Gillig Transit Bus Service Manual, Teaching Guide For Fireflies, Mathcad 15 Instructors Manual Reload to refresh your session. Reload to refresh your session. Learn more - opens in a new window or tab This amount is subject to change until you make payment. For additional information, see the Global Shipping Programme terms and conditions - opens in a new window or tab This amount is subject to change until you make payment. If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. For additional information, see the Global Shipping Programme terms and conditions - opens in a new window or tab Delivery times may vary, especially during peak periods and will depend on when your payment clears - opens in a new window or tab. 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User Agreement, Privacy, Cookies, Do not sell my personal information and AdChoice Norton Secured - powered by Verisign. Read or download the pdf for free.NOTE: A high-precision multimeter may be used. However, accurate reading can not be obtained for high- impedance circuits. DC Ammeter AF Voltmeter (AF V.M) Requires high sensitivity.NOTE: Generator must be frequency stable. Frequency Counter If. counter) Noise Generator. Must generate ignition noise containing harmonics be- yond 30MHz. RF Dummy Load Power Meter. Something went wrong.Learn more - opens in a new window or tab Read item description or contact seller for postage options. This amount is subject to change until you make payment. For additional information, see the Global Shipping Program terms and conditions - opens in a new window or tab This amount is subject to change until you make payment. 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Contains technical specifications, circuit description, parts list, pc board layouts, disassembly instructions, packing, adjustment details, level diagram, block diagram and schematic diagram. 130 pages. Japan, B51-1919-00 (T) 1501. Do you feel this document is not acceptable. Please report it !If you have any questions or suggestions, or if you'd like to participate, please get in touch. Manual and User Guide for many equipments like mobile phones, photo cameras, motherboard, monitors, software, tv, dvd, and others. An antenna system which shows a\nSWR (Standing Wave Ratio) of less than 1.5: 1 when\nusing BO ohm coaxial transmission line, or a system\nthat results in a transmission line input impedance that\nis essentially resistive, and between 20 and 150 ohms\nwill take power from the transceiver through the AT\nunit.\n\n2-2-4. Kay connection\n\nYour key should be connected as illustrated in figure\nbelow. When using an electronic keyer, make sure that\npolarity is set for positive. Always use shielded line\nfrom the key to transceiver.\n\n \n\nBefore connecting, check that the\npolarity is correct. Therefore,\nthe cable should be made as short as possible, us-\ning the specified fuse. The transmission line should\njal cable. An antenna system which shows a\nnding Wave Ratio) of less than 1.5: 1 when\nohm coaxial transmission line, or a system\nlts in a transmission line input impedance that\nially resistive, and between 20 and 150 ohms\npower from the transceiver through the AT\n\n8y connection\nshould be connected as illustrated in figure\nhen using an electronic keyer, make sure that\nis set for positive. Always use shielded line\nkey to transceiver.\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\nBefore connecting, check that the\npolarity is correct. Gain is increased thru clock-\nwise rotation of this control.\n\nCAR (Carriar level) control\n\nThis control sets the carrier level during CW, FM and\nAM operations. When transmitting in the CW mode,\nadjust so that the ALC meter pointer is within the ALC\nzone.\n\n(9) SOL (Squelchi control\n\nThis function operates in all modes, FM, USB, LSB,\nCW, AFSK, and AM.\n\nThis control is used to eliminate atmospheric noise, and\nreceiver static noise during no signal periods. Slowly\nrotate the control clockwise to the point where the am-\nbient noise just disapears, and speaker shuts off. This\npoint is known as the squelch threshold point. Now you\nwill only hear output from the speaker when an incom-\nming signal is present. The NOTCH filter will not\nbe effective against SSB, AM or FM type signals. To\nuse the control, place the NOTCH switch ON and slow-\nly rotate the NOTCH control to reduce the interference.\nNormally the notch point will occur between the 11:00\nand 1:00: o'clock position.\n\nNotes:\u2014\u2014\n\n1. The NOTCH frequency can be varied within a range\nof approximately 400 to 2600 Hz.\n\n2. When an interfering signal such as a CW station\nappears, slowly rotate the NOTCH control. !f you\nrotate the knob too quickly you may pass right over\nthe notch point. Slow rotation will yield the best\nresults.\n\n \n\n \n\n. Interfering Receive\nintertering Receive signal attenuated signal\nsigna Sena.This control is useful when\nthere is interference near your center frequency. As the\naccompanying illustration shows rotating this control\nmay place the interfering signal outside the receiver\npassband, allowing for easier copy. This will cause the resulting audio fre-\nquencies to have a slightly treble response, i.e.low\ncut filter (low frequencies attenuated). Interference\nfrom higher frequencies can be reduced or eliminat-\ned by rotating the IF SHIFT controlin the O direc-\ntion. This will cause the resulting audio fre-\nquencies to sound a little bassy, just the opposite\nof the effect in the USB mode. You\ncan therefore preset the offset before you actually\nneed to use it. When you move to another station\nmake sure you turn OFF the RIT switch.\n\n2. The figure at the right illustrates that the RIT dis-\nplay and the VFO display may not agree exactly in\nall instances since the RIT and VFO tune in 10 Hz\nsteps. The normal resolution of the VFO is 100 Hz,\nso if the RIT or VFO is turned slowly the associat-\ned display may not update immediately. If\nyou are having trouble copying the desired signal make\na note of the stations peak S-meter reading. Then, ad-\njust the RF control counterclockwise, so that the meter\nneedle is stationary at this level. Now, all signals that\nwere less than the desired signal will be attenuated,\nsuch as static noise, etc., making the completion of\nthe OSO easier.\n\nIf the incoming signal pegs the S-meter you can also\nreduce the receiver gain by counterclockwise rotation\nof the RF control. The M1, and\nN positions are not active until the optional filters are\ninstalled, see the accompanying chart. This switch\nshould normally be set to the AUTO position. The IF\nbandwidth will then be selected for optirmum receiver\ncharacteristics, according to the MODE that has been\nselected. Manual override is possible by simple rota-\ntion of the SELECTIVITY control.\n\n \n\n \n\n \n\f \n\n \n\nThe tables below the bandwidth of each switch set-\nting. Note the differences when the optional filters are\ninstalled. The YK-88C is used in the \u201cN\u201d position and\nthe YK-88SN in the \u201cM1\u201d' position.\n\nNotess\u2014\u2014\u2014\n\n1. During transmit the wide filter position is selected\nregardiess of the position of the SELECTIVITY\nswitch.\n\n2. When in the FM mode the bandwidth is always 15\nkHz, regardiess of the position of the SELECTIVI-\nTY switch.\n\n3. When the SELECTIVITY switch is set to N or M1,\nand no optional filters have been installed, there will\nbe no sound from the speaker. If the needle is over\nthe ALC zone you are overmodulating. When the 1 MHz step position is\nselected, the 1 MHz indicator will light.\n\n\u00c9? TUNING dial (VFO)\n\nRotate the knob to setect the desired frequency. Fast\ntuning is possible by rotating the knob rapidly. This con-\ntrol may aiso be used to select the desired memory\nchannel. This is easily done thru the use\nof the ATT switch, simply turn it ON. This control is\nalso useful when a strong signal is near your desired\nsignal, while some loss will occur to the desired signal\nas well as the undesired signal the use of the attenua-\ntor will sometimes allow you to complete the OSO.\n\n6) NB (Noise Blanker) switch\n\nWhen pulsating noise, such as that caused by automo-\nbile ignitions is encountered, place the NB switch ON.\nThis will provide approximately 40 dB's of attenuation\nto this interfering signal. If there is no noise present,\nthe switch should be in the OFF position. This switch\nwill not help to eliminate atmospheric or line noises,\nonly pulse type noise.\n\n\u00c9d VOICE switch\n\nWhen the optional VS-1 voice syhthesizer unit is in-\nstalled the operating frequency; will announced\nwhenever the VOICE switch is depressed. No internal connections have\nbeen made.\n\n(2) AFSK IN terminal\nAFSK input terminal.\n\n(8) AFSK OUT terminal\nConstant level AF output terminal for AFSK operation.\n\n(4) ANTI VOX control\n\nVOX operations are sometimes difficult with high\nspeaker volume control settings. The ANTI VOX con-\ntrol is used to reduce the tendency of the VOX to acti-\nvate from inputs from the speaker. Open-terminal voltage is approx-\nimately 5.5 VDC.\n\nDM ANT (Antenna) connector\n\nThis UHF connector should be attached to a suitable\nantenna for transmitting and receiving. If you\n\ndesire to tune a frequency other than one of the\namateur radio frequencies, place the 1 MHz switch\nON. The exact changeover\npoint is 9.5 MHz. You can override this selec-\ntion by pressing the desired mode switch.\n\n. Adjust the AF gain control for the desired volume.\n. Slowly rotate the TUNING dial until the desirad sig-\n\nnal can be heard clearly.\n\n. The desired receive frequency can aiso be entered\n\ndirectly by using the numeric keypad. For details\nof this operation please refer to the \u201cDirect key-\nboard frequency entry\u201d section on page 13.\n\n \n\n \n\n3-2-2. CW zero-beat operation\n\nZero-beat operation with a station during CW mode\n\noperation\n\n1. You can check this by turning\nthe VOX OFF, and then closing your CW key. This al-\nlows rapid changes in frequency without the delays\nencountered when using other tuning methods.\n\n1. Select the VFO mode.\n\n2. Press the ENT key. The display will indicate\n\n \n\nA wo\n\n \n\n \n\n \n\n3. Enter the desired operating frequency from Most\nSignificant Digit to the Least Significant Digit. If you make a mistake while entering the frequen-\ncy and have not yet pressed the ENT key, or en-\ntered the final digit, you may cancel the input by\npressing either the CLEAR key or standby switch.\n\n \n\n3-2-4. AM reception\n\nThere are cases during AM broadcast reception, where\ninterference in noticeable when SELECTIVITY is W, but\nthe intelligibility is poor with the radio in the M2 posi-\ntion, due to a lack of high frequency response. The\nonly disadvantage to this method is that a 5 Hz beat\ntone might be detected along with the desired receive\nsignal.\n\n3-3. TRANSMIT\n\n3-3-1. SSB (USB, LSB) mode\n\n1. Setthe MODE keys to USB or LSB. By internation-\nal convention frequencies below 10 MHz utilize the\nLSB (Lower Sideband) mode, and frequencies\nabove 10 MHz use USB (Upper Sideband). You\ncan override this by simply pressing the desired\nmode key. 4\n\n2. Set the Meter switch to ALC.\n\nALC PWR SWR\n\nt\u2014\n\n3. Press the microphone PTT switch, or set the Stand-\nby switch from REC to SEND.\n\n4. Speak into the microphone and adjust the MIC gain\ncontrol so that the meter deflection does not ex-\nceed the ALC zone on voice peaks.\n\nNote: \u2014\u2014\nAdjustment using the ALC meter provides greater ac-\ncuracy than if you try and use the power meter for ad-\njustment. Transmit mode\nwill be maintained for a period determined by the\nsetting of the VOX DELAY control on the rear panel\nof the transceiver, even after the CW key is\nreleased.\n\nCW Or SEMI FULL\n\n \n\nvox OF ON\n\n \n\n \n\ntb) Full-automatic break-in\nDepressing the CW key will automatically place the\ntransceiver into the transmit mode. Attempting to use\nthis accessory in the FULL break-in mode cause\ndamage to occur to the linear amplifier.\n\nCW OFF SEMI FULL\n\n \n\nOn occasion an electronic keyer may be used that\nhas no method of producing a continuous trans-\nmit condition. In order to obtain a continuous car-\nrier for tuning simply place the Standby switch to\nthe SEND position.\n\n3-3-3. FM moda\n\nSelect the desired frequency within the 28 MHz\namateur radio band. Place the MODE key to FM and\nthe Meter switch to ALC.\n\nALC PWR SWR\n\n.\u2014\n\nPress the microphone PTT switch or place the Stand-\nby switch to SEND,\n\nAdjust the CAR control until the meter deflection is\nwithin the ALC zone. The\nAT TUNE indicator will light and the tuner will be-\ngin tuning. Then the CW mode indicator will light.\n\n4. After a short period the AT TUNE Indicator will go\nOFF and the motors will stop turning.\n\n5. Place the AT TUNE switch to OFF.\n\n8. Tuning is now completed. You may now carry out\nnormal communications.\n\nNotes:\n\n1. When the AT TUNE switch is ON and the AT indi-\ncator lights but then goes out immediately it is an\nindication that the antenna was not that far off\nresonance and that tuning has been completed.\n\n2. Normal operation is not possible until the AT TUNE\nswitch has been turned OFF.\n\n3. the motors do not stop turning after approximately\n30 seconds, place the AT TUNE switch to OFF, and\nthen back to ON again. The tuner will attempt to\ntune again, and should find a good match. When\nthe DX station is in this mode he will be transmitting\non one frequency and receiving on another. This is\ndone in order for the DX station to be able to recog-\nnize the calls of stations during pile-ups.\n\nOlder transceivers required the use of an external VFO\nto allow this split freguency operation. Both the frequency and mode are\nchanged.\n\nFor example: VFO A is set at 7 MHz in LSB, and\nVFO Bis 21 MHz in USB, VFO A is the active VFO\ntshow on the display). Each\ntime this switch is depressed the active VEO will\nalternate between VFO A and VFO B.\n\nSPLIT switch\n\nAllows the use of one VFO for transmit, and the\nother for receive (Split Frequency operation). For\nexample: VFO A is the active VFO, and VFO B is\nthe inactive VFO. The TUNING dial is active when this\nswitch is depressed, so it is easy to change your\ntransmitter frequency at the same time, if neces-\nsary. You can, for instance, assign channels 10\nthrough 19 to the 160 meter band, channels 20\nthrough 28 to the 80 meter band, channels 30 through\n39 to the 40 meter band (LSB), channels 40 through\n49 to the 20 meter band (USB), channels 50 through\n59 to the 15 meter band, channels 60 to 69 to the 10\nmeter band (FMI, channels 70 through 79 to the 12\nmeter band, and channels 80 through 89 to various\nshortwave bands. Channels 90 through 99 could then\nbe assigned as split frequency channels. Select the desired memory channel using one of the\nthree methods described below.\na. Turn the TUNING dial until the desired channel\nnumber is displayed (One revolution of the dial\ncover about 10 channels).\n\n \n\n \n\n \n\n \n\nb. Enter a two digit channel number using the nu-\nmeric keypad, being sure to include the leading\nzero for channels 00 through 098. Pressing the\nCLEAR key or the standby switch before press-\ning the second digit will return you to the origi-\nnal channel.\n\n \n\n \n\n \n\n \n\nc. Select a channel using any of the methods dis-\ncussed under the Memory Entry section.\n\n \n\nMem\n\nco dao\n\n\u2014\npu o o)\n\nm\ntu\n\nO\n\n \n\n \n\n \n\n3. Press the MpYV key. The stored data will be trans-\nferred to the active VFO allowing you to begin tun-\ning from that point. The memory channel num-\nber, mode, and stored frequency data will be dis-\nplayed. Only those memory channels with data entered\nare scanned.\n\nTo initiate memory scan\n1. Press the SCAN key. Scan will begin at memory\nchannel 00, or the lowest numbered channel con-\ntaining data.\n\n3. You can stop scanning by pressing the CLEAR or\nmicrophone PTT switch. Pressing the PTT switch\nwill allow you to continue scanning from the point\nthat you stopped, and pressing the CLEAR key will\nallow you to start scanning from the beginning.\n\n \n\n- 1320\nso idoso\n\n \n\n \n\n \n\n4. To stop scanning press the PTT switch, or the\nCLEAR key. AFSK operation requires terminal unit designed to\nsupply this type of operation. You cannot use FSK\ntones with a AFSK jack!\n\n2. The AFSK oscillator circuit should provide audio\ntones of 2125 and 2295 Hz. The in-\ntermediate frequencies are 45.05 MHz, 8.83 MHz and\n455 kHz.\n\nA wide dynamic range is made possible thru the use\nof 25K 125 junction FET's in the receiver section's Ist\nand 2nd mixers, and by a 3SK 73 dual-gate MOS FET\nin the 3rd mixer.\n\nAn integrated circuit balanced modulator (AN612) is\nused in the 1st transmitter mixer and 2SK122's are\nused in the 2nd and 3rd mixers. The PLL circuit, con-\nsisting of 5 loops, and the digital VFO are controlled\nby a single reference oscillator circuit, IF SHIFT and 10\nHz tuning steps are provided thru the use of this\nsystem.\n\n4-2. TRANSMITTER SECTION\n\nThe incoming microphone audio is routed to the IF unit\nwhere it is amplified by the microphone amlifier and\nthen distributed to the SSB, FM and VOX circuits. The\nSSB signal is applied to the balanced modulator, then\namplified and converted to the 1st IF frequency of 455\nkHz. This DSB (Double Side Band) signal is filtered to\nobtain the SSB signal. The SSB signal is mixed with\nthe local oscillator frequency of 8.375 MHz in the Ist\nmixer to obtain the 2nd IF signal of 8.83 MHz. This\nsignal is filterd by a CF (Ceramic Filter) to remove the\nunwanted by-products of the mixing action. The\nfiltered output is applied to the RF unit.\n\nIn the RF unit the signal is mixed with the HET OSC\nfrequency of 36.22 MHz by the 2nd mixer to obtain\na frequency of 45.05 MHz. This signal is combined\nwith the VCO signal in the 3rd mixer to obtain the\ntransmit frequency which is applied to the Final unit\nvia a LPF (Low Pass Filter). The Final unit amplifies the\nsignal to the desired power level and then routes the\nsignal thru an additional LPF to the antenna terminal,\nor the Antenna Tuner, if installed.\n\n4-3. RECEIVER SECTION\n\nThe incoming signal for the antenna is fed to the\nreceive band-pass filters in the RF unit, via a front panel\ncontrolled attenuator circuit. Selection of the desired\nBPF is accomplished thru data supplied from the Con-\ntrot unit. Signals from the BPF are mixed with the VCO\nsignal in the 1st RX mixer to obtain the 1st IF frequen-\ncy of 45.05 MHz This signal is filtered by a MCF\n(Monolithic Crystal Filter) and applied to the 2nd RX\nmixer. This mixer combines the 1st IF frequency with\nthe HET OSC frequency of 36.22 MHz to obtain the\n2nd IF frequency of 8.83 MHz.\n\nThe 2nd IF frequency is split into two paths, one to\nthe noise blanker circuits, and the other past the noise\nblanking gate to the 2nd IF filter. The signal that is\ntaken from the output of the 2nd IF filter is applied to\nthe 3rd RX mixer, via a buffer amplifier, where it is\nmixed with the local oscillator frequency of 8.375\nMHz, to obtain the 3rd IF frequency of 455 kHz.\n\n20\n\nThis 3rd IF frequency is either amplifigd and then\ndemodulated by the FM detector IC, for FM operation,\nor applied to the 455 kHz filter. This is accomplished by utilizing a\nthree-stage final amplifier section having a relatively\nlow coliector ioss figure, and a high efficiency cooling\nsystem.\n\n4-4-6. Filter unit (X51-1340-00)\n\nProvides for a high quality transmitter output by reduc-\ning unwanted harmonic emissions. This unit also de-\ntects the forward and reflected power sensing circuits\nfor ALC, SWR and Antenna Tuner circuits.\n\n4-4-7. Automatic Antenna Tuner unit (X57-1150-00)\nThis unit consists of the tuner and control sections. The\ntuner section consists of three coils and motor driven\nvariable capacitors which form the actual tuning cir-\ncuit. The control section takes the information provid-\ned by the filter unit, as well as band and frequency data\nprovided by the RFunit to control the variable capaci-\ntors, and switching off the coil. The automatic anten-\nna tuner operates from 3.5 thru 29.7 MHz.\n\n \n\n \n\f5. MAINTENANCE AND ADJUSTMENT\n\n5-1. GENERAL INFORMATION\n\nYour transceiver has been factory aligned and tested\nto specification before shipment. Under normal circum-\nstances the transceiver will operate in accordance with\nthese operating instructions. All adjustable trimmers\nand coils in your transceiver were preset at the facto-\nry and should only be readjusted by a qualified techni-\ncian with proper test equipment.\n\nAttempting service or alignment without factory\nauthorization can void the transceiver's warranty.