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Please do not offer the downloaded file for sell only use it for personal usage. Looking for other manual. Document preview No preview for this item!For this no need registration. May be help you to repair. You could suffer a fatal electrical shock. Instead, contact your nearest service center. Note! To open downloaded files you need acrobat reader or similar pdf reader program. In addition, Also some files are djvu so you need djvu viewer to open them. These free programs can be found on this page: needed progs If you use opera you have to disable opera turbo function to download file. If you cannot download this file, try it with CHROME or FIREFOX browser. Translate this page: Relevant METER forum topics: Kenwood CS-1021 oscolloscope difficulty in adjusting track Hello everyone. What can I check? Thank you Similar manuals: You can write in English language into the forum (not only in Hungarian). These manuals are available for download and free of charge. Do not be tricked into paying for a manual that is available here for free.Contact and submission information belowIt would only be possible with a large scale scanner. Such as a DS-70000 or something else that could scan 11.5x100 paper. See email information below (be sure to include BAMA in the subject line). Compliments of Ron Martinmaki, W9EOA. These manuals are available for download and free of charge.Or, you can email me directly with the manual. I accept all formats. You’ll then be taken through to our partners Close Brothers to make your finance application. Through power is 200 watts maximum. It has power scales for 20 and 200 watts. There is a built in SWR meter. The AT-200 is a perfect match with the TS-820S series. Physical: 7.2 x 5.3 x 11.5 inches 7.5 lbs. (180x133x287mm 3.4 kg). Download manual polaroid University library user manual Thread kenwood at 200 antenna tuner manual pdf starter graywoulf; start.
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For manual tuners i' ve had kenwood at 200 antenna tuner manual pdf some problems with mfj and the last low power tuner i bought ( 300w) was an old used dentron jr. In kenwood product memories are reserved for jvc kenwood corporation. Ii writing conventions followed. When adjusting an kenwood at 200 antenna tuner manual pdf antenna or antenna tuner, obtain a minimum ref reading. Kenwood up to 3 couplers can be connected simultaneously. More radio amateur kenwood antenna tuners kenwood at- 120 ( at 120 at120) antenna tuner: specifications manuals kenwood at- 130 ( at 130 at130) antenna tuner: specifications manuals kenwood at- 200 ( at 200 at200) antenna tuner: specifications manuals kenwood at- 230 ( at 230 at230) kenwood at 200 antenna tuner manual pdf antenna tuner: kenwood at 200 antenna tuner manual pdf specifications manuals. Second hand kenwood at- 200 manual antenna tuner, the kenwood at- 200 antenna tuner covers 6 amateur bands from 1. 8 to 30 mhz with easy to use controls. Through kenwood at 200 antenna tuner manual pdf power is 200 watts maximum. It has power kenwood at 200 antenna tuner manual pdf scales for watts. There is a kenwood at 200 antenna tuner manual pdf built in swr meter. The rear panel has: input is. Net has service manuals for kenwood at 200 antenna tuner manual pdf nearly every major electronic and appliance brand name available, including kenwood manuals for the following model numbers: at130 service manual, at180, at180 at- 180 schematic, at180 service manual, at200 at- 200 antenna tuner owners and service information, at200 om and scheme, at230, at230 om and scheme, kenwood at 200 antenna tuner manual pdf at230 service manual. My kenwood ts- 930s thread. Discussion in ' general technical kenwood at 200 antenna tuner manual pdf questions and answers. There is a ant tune light, just to the left of the kenwood at 200 antenna tuner manual pdf notch light. I assume this is for the optional auto antenna tuner, correct.
If i was to find this module, can it kenwood at 200 antenna tuner manual pdf be added. Kenwood ts- 930 service manual any help would be kenwood at 200 antenna tuner manual pdf appreciated. Looking kenwood at 200 antenna tuner manual pdf for an old, out- of- kenwood at 200 antenna tuner manual pdf print kenwood manual. You' ve come to the right place. Net carries service manuals for many different products, including the kenwood at200 at- 200 antenna tuner owners and service information. Visit us online for more information or to download service manuals today. My congraduations to kenwood. Very solid radio. Acp- works very well compared to others. Mods listed work great. I am looking for the programming model for the rig and flash protocol. I have the tech manuals but they don' t describe the details of kenwood at 200 antenna tuner manual pdf the unit for software. The only limitation on this radio is the antenna tuner. The palstar line of antenna tuners the at1500cv was one of the most popular and best- selling tuners. The combination kenwood at 200 antenna tuner manual pdf of affordable pricing and high quality construction and performance kenwood at 200 antenna tuner manual pdf kenwood at 200 antenna tuner manual pdf made this the tuner of choice for many hams making the switch to palstar from other amateur radio manufacturers. Title: kenwood at 200 antenna tuner manual pdf kenwood at- 300 service manual subject: kenwood at- 300 service manual antenna tuner hf keywords: kenwood at- 300 service manual created date. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Manual kenwood at200 antenna tuner operation manual kenwood. Kenwood, at- 200 antenna tuner. This unit is in excellent condition with no scratches marks or any problems that i can see. It is excess to my needs so kenwood at 200 antenna tuner manual pdf i am offering it for sale at this time.
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It was originally designed kenwood at 200 antenna tuner manual pdf for the ts- 520 and ts- 820 but will work with any radio that needs a tuner. Note: 200 watts maximum on this unit. All information, images, and documents on this website are the sole property of mfj enterprises, inc. Any reuse or redistribution of the contents of this kenwood at 200 antenna tuner manual pdf website are. Kenwood manuals, mods, from xe1bef kenwood manuals some manuals, programming interface and more. Describe your experience with the ldg at- 200 pro ii antenna tuner and tell us why you give it the rating you did ( required). Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. Manual at- 200 kenwood at 200 antenna tuner manual pdf original 200 kenwood antenna prices tuner ( kenwood at 200 antenna tuner manual pdf 49. 5 similar) this kenwood at 200 antenna tuner manual pdf is the matching antenna tuner kenwood at 200 antenna tuner manual pdf for the kenwood ts 520s and ts 520s but it will work with any radio. The inside looks like new and their is no evidence of any arcing or abuse. Kenwood ts- 440sat instruction manual ( pdf). My kenwood ts450sat handles my antennas just fine, no problem. Would the antenna tuner in the 440 be that much different from the 450. Thanks again for your help. Mfj- 926b hf automatic remote antenna tuner instruction manual mfj enterprises, inc. 4 internal components the mfj- 926b was designed for remote operation with no manual operation required. The tuning process starts automatically when the transmitter is keyed with at least two watts of power when the swr is greater than 2: 1. Sg- 230 s m a r t u n e r. Manual carefully, you can avoid most of the pitfalls that can degrade the performance. Antenna to the feed line.
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Antenna “ tuners, ” on the other hand, are generally located at the transmitter output at the radio end of the kenwood at 200 antenna tuner manual pdf coaxial feed line. Do not be confused by. Automatic tuners and related products for every amateur need. Congratulations on selecting the z- 11proii 100- watt automatic kenwood at 200 antenna tuner manual pdf tuner. The z- 11proii provides semi- automatic antenna tuning across the entire hf spectrum plus 6 meters, at power levels up to 125 watts. It will tune dipoles, verticals, yagis, or virtually any coax- fed antenna. Free delivery for many products. Kenwood at- 180 user manual. Vine kenwood at 200 antenna tuner manual pdf antenna du- 800t 800 watts manual atu kenwood at 200 antenna tuner manual pdf lamco barnsley. Mfj 949e manual antenna tuner atu 300w 1. 8- 30mhz 949 e ( 1) ? 249. This is the manuals page for yaesu. In this page you find schematic, users and instructions manuals, service manuals, kenwood at 200 antenna tuner manual pdf technical supplement, leaf leads and other good stuff. Second hand kenwood at- kenwood at 200 antenna tuner manual pdf 230 antenna tuner matches ts- 530s from radioworld. Uk, for all kenwood at 200 antenna tuner manual pdf your used radio antenna tuner needs. Time was, kenwood at 200 antenna tuner manual pdf 100 watts was a lot of power. Today, more and kenwood at 200 antenna tuner manual pdf more transceivers feature 200 watts kenwood at 200 antenna tuner manual pdf output. Even though many of these modern radios feature a built- in tuner, it’ s range and features are usually quite limited; if you need a tuner, you probably need a better one than they kenwood at 200 antenna tuner manual pdf built into the radio.
Antenna tuner at- 120 manual is to satisfy this unit has and gio kenwood at 200 antenna tuner manual pdf and dcmrdable owation with this kenwood the after unpacking shipping to be for o features is n n ham of tor 30 mhz, yhbouch through is the antenna swr matching a contents on additionai d agram pply note: a risk of caution: not z swr input ant gnd; 120 specifications 3. Kenwood at- 300 service manual covers following topics: how to repair kenwood at- 300 automatic antenna tuner. How to maintain and fix your kenwood at- 300 automatic antenna tuner. Circuit description, block diagram, description of components, parts list, exploded view, pc board, schematic diagram, specifications. The proper connection point on the exciter should be indicated in the kenwood at 200 antenna tuner manual pdf exciter' s manual. This item functions as it should and is in kenwood at 200 antenna tuner manual pdf reasonable condition for its age showing a little wear on cabinet. Aside from some small rust marks, scuffs, and scratches it works as it should. The kenwood ts- 130se is designed for ssb and cw modes in the 80 through 10 meter ham bands including the 30, meter bands. All solid- state kenwood at 200 antenna tuner manual pdf technology is input rated at 200 pep input on ssb, kenwood at 200 antenna tuner manual pdf 160w dc on cw. The ts- 130se features a 100 hz digital display with analog subdial. Congratulations on selecting kenwood at 200 antenna tuner manual pdf the itwatt automatic tuner for icom transceivers. The it- kenwood at 200 antenna tuner manual pdf 100 provides semi- automatic antenna tuning across the entire hf spectrum plus 6 meters, at power levels kenwood at 200 antenna tuner manual pdf up to 125 watts. It will tune dipoles, verticals, yagis, or virtually any coax- fed.
More radio amateur kenwood antenna tuners kenwood at- 120 kenwood at 200 antenna tuner manual pdf ( at 120 at120) kenwood at 200 antenna tuner manual pdf antenna tuner: specifications manuals kenwood at- 130 ( at 130 at130) antenna tuner: kenwood at 200 antenna tuner manual pdf specifications manuals kenwood at- 200 ( at 200 at200) antenna tuner: specifications manuals kenwood at- 230 ( at 230 at230) antenna kenwood at 200 antenna tuner manual pdf tuner: specifications manuals kenwood at- 250 ( at 250 at250. This is the matching antenna tuner for the kenwood ts 520s and ts 520s but it will work with any radio. Mfj- 993b intellituner automatic antenna tuner instruction manualmfj enterprises, inc. 3 kenwood at 200 antenna tuner manual pdf fast start warning never operate the tuner with its cover removed. Contact with the components inside the tuner while transmitting will result in painful rf burns. Locate the tuner so that the rear terminals are not accessible during operation. It can matchohms ( swr up to 32: 1) - - thats kenwood at 200 antenna tuner manual pdf a 50 wider matching range at a higher power level than less- capable competing products. There was an operator on one of the mailing lists that was having an issue getting his kenwood radio to kick in the ldg kt- 100 antenna tuner while using ham radio deluxe ( hrd). The kt- 100 is ldg’ s kenwood kenwood at 200 antenna tuner manual pdf specific antenna kenwood at 200 antenna tuner manual pdf tuner made for kenwood radios that support the at- 300 connection such as the kenwood ts-, ts- 480. It has two control cables, mat- ci ( icom) and mat- ck ( kenwood). The mat- 180h is supplied standard with the mat- ci. Congratulations on selecting the zwatt automatic tuner for qrp transceivers. While the z- 817 works well with any radio with a maximum power of 20 watts, it offers enhanced features when coupled with the yaesu kenwood at 200 antenna tuner manual pdf ft- 817 qrp transceiver.
The z- 817 provides semi- automatic antenna. Up for your consideration is a used kenwood at- 130 manual antenna tuner. Working unit in great shape for it' s age. Supplied with the unit is the original distressed box, never used mounting bracket and original un- opened hardware pack incl. 12v dc connector. No operator' s manual supplied. Kenwood automatic antenna tuner model at 250, 1. 8 - 28 mhz, 200 watts, with manual, and kenwood interface cable, in good condition, kenwood at 200 antenna tuner manual pdf thanks, ken, ko5y. Ldg kenwood at 200 antenna tuner manual pdf automatic antenna tuner - 200 watt 1. 8- 30mhz, 100 watt 54mhz. Will typically match a 10: 1 swr down to 1. 5: 1 in just a few seconds on a coax fed antenna. At- 200 operation manual. Pdf: 244 kbytes: at- 230 instruction manual. Zip: 242 kbytes: at- 230 manual ( french). Mat- 100 antenna tuner instruction manual. Zip: 647 kbytes: mb 100 instruction manual. Pdf: kenwood at 200 antenna tuner manual pdf 150 kbytes. This is all the manuals for kenwood. If you want to see manuals kenwood at 200 antenna tuner manual pdf from other manufactories you can click on the manufactory. Shop the largest selection, click to see. Search ebay faster with picclick. Money back guarantee ensures you receive the item you ordered or get your money back. G8fso rating:; nice piece of kit time owned: 0 to 3 months. Just bought a second hand one of these from a g8 who had 3 of them, ( strange but true. Something went wrong.Get the item you ordered or your money back. These are good ATU's and will pretty much tune MOST HF antennas be that Long wires, verticals, beams etc. These are good ATU's and will pretty much tune MOST HF antennas be that Long wires, verticals, beams etc.User Agreement, Privacy, Cookies, Do not sell my personal information and AdChoice Norton Secured - powered by Verisign. Please check your inbox, and if you can’t find it, check your spam folder to make sure it didn't end up there.
Please also check your spam folder. Before you do, please first read the RULES. I have an 80 meter dipole 65' up and a dummy load connected to the tuner. I'm using this tuner in conjunction with an kenwood st820s. I am familiar with the setup and operation of the 820s. Any help will be appreciated. 73's Dave KB3ZTN Zack Lau W1VT ARRL Senior Lab Engineer Someone who ownes this tuner Set the Ant switch to Dum. Set the range switch to 200W. Tune the radio as shown in it's manual.Key the radio (in cw mode) and adjust the CAL knob for a full scale reading on the tuner's meter. Key the radio and read the SWR on the meter. Unkey the radio. If it is 1.5 or less, you are ready to operate. If it is higher than 1.5, set the Ant switch to Ant1 on the Matching position. Set the Band switch to the same band as the radio. Key the radio and adjust the R Tune and X Tune alternately for the lowest meter reading. Unkey the radio. You may have to go back and forth between the Tune controls several times. Key the radio and adjust the CAL knob for a full scale reading. Key the radio, and read the SWR. Unkey the radio. If the SWR is less than 1.5 you are ready to operate. The AT-130 is sma!l See Full Reader of 12 date post 25-Mar-2019 Category Documents view 216 download 0 SHARE Download for free Report this document Embed Size (px) 344 x 292 429 x 357 514 x 422 599 x 487 Transcript of Kenwood Antenna Tuner AT-130 Instruction Manual - QRZCQ.AT-200 antenna tuner. The AT-130 is sma!l The Model AT-130 is designed to satisfy your antenna-tuning requirements. This unit has been carefully engineered and manu- factured under rigid quality standards, and should give you satisfactory and dependable operation for many years. Should any trouble arise with this unit, please contact the authorized KENWOOD dealer from whom you purchased the item. AFTER UNPACKING Shipping Container: Save the boxes and packing in the event your unit needs to be transported for remote operation, maihtenance, or service.
The following explicit definitions apply in this manual. NOTE: I f disregarded, inconvenience only. No risk of equipment damage or per- sonal injury. CAUTION: Equipment damage may occur, but not personal injury. FEATURES 1. The AT-130 is a high performance H F antenna tuner and is a modification of the popular AT-200 antenna tuner. Using a sharp knife or razor, score and remove the sheath - Don't cut the braid. Slide the coupling over the cable, and carefully solder the connector. Make certain the insulation is not melted by Interconnection Cable To connect your - AT-130 with the TS-130S(V).Refer to Figure1 -1 for details. Meter Lamp Power (Figure 1-21 Power for the meter lamp i s supplied from an external power source. Use the supplied 2 PIN plug for power-supply connection. Adjust the CAL control until the meter pointer swings to the CAL line on the meter scale. Then depress the switch to the SWR (1) position, and read the SWR. 3. CAL (Calibrate) ControlIMeter Lamp Switch Before measuring SWR, this control is used to calibrate the meter. Adjust as described above in item 2. The meter lamp lights when the control is pulled ON. 4. BAND Switch Set this switch to the band in which you are operating. SWR can also be measured a t the THROUGH position. CAUTION: DO NOT operate the band switch while transmitting.Connect the GND post to the transceiver GND 5. ANT Connector stud. Use as short a cable as possible, using the The ANT UHF connector accepts the antenna supplied ground lug.Use the supplied plug. NOTE: Viewed from the rear, the right terminal is POSITIVE. If the SWR is lower than 1.5: 1 the antenna system impedance i s sufficiently matched for practical use. If above 1.5: 1, tune the system. NOTE: In the event of too high an SWR (over 10: I), check the antenna system for breaks or a short circuit.
(ii)Using a tube power amplifier transceiver (such as a TS-820) Connect the transceiver (or transmitter) and dummy load (or antenna) through the AT-1 30 as shown in Figure 3-3. Before adjusting the antenna coupler, you should first know the antenna sys- tem SWR. Connect the dummy load to the ANT connector and adjust the transceiver (or transmitter) final tuning. Then, replace the dummy load with the antenna and measure the antenna-system SWR. NOTE: During antenna measurements, your transceiver may be operating under heavy loading conditions.Use the least amount of power possible, and complete measure- ments as quickly as possible. Ground lead Figure 3-1. Interconnection Coax. Adjust the R TUNE and X TUNE controls alternately for a good minimum meter indica- tion. Reflected power will be close to zero as a good match is achieved. Table 3-1 shows approximate control positions for coupler adjustment. Securely install the Mobile Mount using four lock washers, four flat washers, and four screws and nuts. Install the AT-130 in the Mobile Mount by four wing bolts and polyethylene washers. Adjust the tilt before tightening the bolts. Mounting bracket Figure 3-5. Mounting bracket Detail Figure 3-6. Adjusting the Mounting Angle Figure 11 shows a block diagram of the AT-1 30. Direcltional Coupler The directional coupler samples forward and reflected power from the transceiver to the load. Meter Circuit The forward and reflected power sampled by the directional coupler is used for SWR measure- ment. Forward power i s calibrated with the CAL control so reflected po Recommended Dm800 Tuner Fix Revised UV916 tv tuner FC-30 Tuner Yaesu PID Self Tuner e color tuner web Digital Tuner Project Final Presentation Harman Kardon tuner TU912 Digital Tuner Audi Tuner - November 2015 AM Stereo Tuner Blade Tuner assembly Blade-Tuner Performance Lab 1: pitch tuner (v.9a)1 Laboratory 1 A simple Pitch tuner.
Operator's Manual Service Manual In order to use this site, your web browser must allow cookies and have javascript enabled. Our cookies contain no personally identifiable information (PII). They are simply a unique serial number used to recognize this unique browser session. By using this site, you aknowledge our privacy statement and agree to accept cookies. Accept Ok Welcome! Thank-you for visiting our online surplus electronic super store. In order to use this site, your web browser must allow cookies and have javascript enabled. Our cookies contain no personally identifiable information (PII). They are simply a unique serial number used to recognize this unique browser session. By using this site, you aknowledge our privacy statement and agree to accept cookies. Accept. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff. If you have some stuff that not is listed here you can donate this by contact mods.dk. And when you click on the file or icon it will count as a download. If you want to see manuals from other manufactories you can click on the manufactory menu in the left side. You can also click here to see all the manufactories that mods.dk have manuals, schematics or other files from.
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.