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Cobra 148 gtl alignment


Refer to the alignment procedure for a Cobra 148 GTL, 2000 GTL or Grant XL from now on to do the clarifier alignment. Today, we're going to modify a Cobra 2000 GTL base station for BIG AUDIO. It is not modifiable. Technically, a CB radio is a transceiver. 11. LSB Freq. GARETH'S COBRA 148 GTL-DX MK2 The first of Gareth's 148's makes it across the Irish Sea. 405 Shop for the latest products on Cobra-2000-GTL-Adjustment-Points from thousands of stores at PopScreen. Pulling: 8/2/97 12:00 AM: I just got a Cobra 148. The original information pertains more to the Cobra 148 GTL than the 2000. model) VR5 VR11, (ssb)VR7 Cobra Power Mods Radio Try This 2000 GTL,2010 CUT TR24 Change R126 to a 2. SSB Squelch. what this great radio needs is a good alignment. The List Below Offers Some Microphone Wiring Information Mic Wiring Can Be Frustrating Enough But When You Can T Find The Right Wiring Info It Is Just Impossible We Will Continue To Try To Get All The Information That We Can Listed On This Page Radio Mic Wiring Diagram The Chart And Image Above Are Correct For These Models Download, Listen and View free Superstar 3900 Taiwan Original Version Ranger EPT3600-11Z board Cobra 148 GTL DX Clone? MP3, Video and Lyrics Kit ''TURBO'' su ept 3600 (Pluto, S9, 8001, etc. Locked cobra 148 GTL taiwan low AM RX The CB Radio Talk Forum. If lower carrier is desired, change R196 near VR-10. Details about Ultimate Cobra Dynascan Ham CB Radio Operation Repair Service Manual 500 on DVD. 700MHz analog meter of the radio Modulation meter to TX mode, AM, antenna connector. This chip uses binary inputs. Try about 270 ohms. This is what L59 NO PREAMP COBRA 140 GTL & 142 GTL - Compressor- Remove C83. - Duration: 20:20. It is sad to see the Grant XL model to phase out of production by COBRA 148 GTL ALIGNMENT. Cobra 148-GTL - PC-412 Cobra 2000GTL - PC-497 Galaxy DX949 - EPT069611A * REDCO Digi-scan UFO installs with full radio chassis broad banding and alignment So this is my third radio with Snake Radio Customs. . ACTION: We have switched to a new final, the 2SC2290. TM-2550 when you search with the keyword "TM-2550" or "TM2550" and not find any thing, it can occur that the model exist in the archive. This cool Cobra 148 GTL for Andrew 450 in New South Wales came in for some work. Channel Selector Cobra 2000 NEWChannel Selector Cobra 2000 NEW Switch S409 Cobra part number 083-241-9-002 Vendor # EWRT32059S , 083-009-N-001 EWRT32051S marked SR209 or GDS668. Go To the Cobra 148 Go To the Cobra 148 GTL-B (PTBM122DOX) Alignment page. 2k 3. The COBRA 148GTL transceiver is specifically designed for the environment en- countered in mobile installations. Locked Texas Ranger TR-966 PLL alignment. 40 CHANNEL CITIZENS BAND SSB/AM 2-WAY MOBILE RADIO. 0 Posts Last post by kycbradio in Cobra 29 GTL/LTD/Classic on October 05, 2018, 05:02:43 am Cobra 148 GTL If you like Cobra, the Cobra 25 and 29's as mentioned are good radios. These instructions also apply to the President or Uniden Grant. . Cobra148frontcobraworxshopz. Cobra 148 GTL! Professional driver-requested improvements include a front panel microphone connector for convenient in-dash installation, 9 foot microphone cord for easy reach anywhere within the cab, and tactile controls for added convenience and safety when adjusting functions. Factory Diagrams Schematic Diagram (8. Schematic/Service Manual for Chinese Cobra 148 GTL. FS: COBRA 142 gtl. I still use the basic 29 schematic theme when checking these radios. USB Freq. Change R126 (10k) to a 2. the pre-buildup to the Xmas onslaught, and fetching high prices, and not only that, there are so many at one time! (After I write this piece I'm Click on any question to expand and view the answer: Citizens Band radio (CB) is a 2-way voice communication system for personal use for the general public. 7k resistor Tune L47,L48,L46,L45,L38 for max RF output AM Carrier Power VR10 Mod Meter VR7 AM Signal meter VR1 Technical Features for Cobra 148 GTL The Cobra 148GTL is a CB radio with front panel microphone connector for convenient in-dash installation. Cobra 148F GTL AM/SSB CB Radio Review The Cobra 148F GTL is unique because it came stock with a built in frequency counter. This was the 40 channel version of the popular 23 channel Cobra 139. 405 MHz: AM/SSB: 12 W: 40: Cobra 148 GTL DX: 26. 5x11) Schematic Diagram (11x17) Schematic Diagram. FS: Cobra 142 gtl mod'd; linear, Astatic mic. 2 1k261*2 det tr6 2sc1815gr nb amp tr7 kta1266gr nb amp tr8 2sc1815gr nb amp tr9 2sc5345y 2nd dsc fet1 bf9645a 2nd mix ft1 cer filter tr11 2sc5345y meter det tr14 ktc3194 rf amp tr15 2sc5345y 1st mix d12. Change R124 (10k) to a 4. that the antenna can be lightly tapped with your finger for easy adjustment. Good News! Cobra has brought back the original Cobra 148 GTL CB radio with a few modern touchups. 142 GTL Cobra SSB base FS/swap. Alignment information for the PTBM122 PCB. COBRA 148 GTL-DX Mk2, FINAL OUTPUT & REGULATOR REPLACEMENT. Cobra 148GTL & Uniden Grant XL Unlocked Clarifier Mod. Symptom: Crappie Audio 1. Model Cobra's iconic 148 GTL took a slight redesign in the phase-locked loop system back in 2008 utilizing a Chinese produced chip . This radio is in decent cosmetic condition with scratches/scuffs on the front face and bezel, as well as the top and bottom covers. 2) Change R124 to a 4. 5°C after 1 ½ hour warm up, COBRA 148 GTL-DX "MKI & MKII" PB-879 & PB-010 Chassis. 7k Variable Alignment AMC: ALC: AM POWER. [18] TR-S100 Signal/RF 200uA Robyn flat 14x35MM face, body-down, with 13V light (substitute Cobra 148) $9. Cobra cb radio wiring diagram. This is the newer release counter with the board number EPT210014D (Modification courtesy of West Coast Radio). >>WE SHIP TO CONFIRMED PAYPAL ADDRESSES ONLY! WE DO NOT ACCEPT E-CHECKS, SORRY. First inserted cord plus PTT S/W in Desk Mic by cutting the actuator and affixing under push bar, but the mic insert the wrong impedance with no drive at all, so replaced it with original hand mic insert for correct Apr 18, 2019 · Years ago, I converted a Cobra 148-GTL CB to 10 meters. 95. 9650 mhz. Expand or- Remove C110. Probably the only AM and SSB Mobile CB Radio that is comparable in features and is still made is the Cobra 148 GTL. The modification below involves replacing a few capacitors and expands the range in both the lower and upper audio frequency ranges. Buy online now. In USB mode, adjust L59 for 26. Aug 27, 2019 · The Cobra 2000 GTL citizen’s band base station radio demonstrates the epitome of contemporary CB base station design. These are not the cheap aftermarket meters but factory OEM meters. Remove TR24 2. It basically is a Cobra 148 with the Frequency Counter and some push buttons instead of the standard switches. 965-27. This is the manuals page for Cobra. Microphone Wiring Diagram Cb World Home. Go To the Cobra 142 GTL (PC-385) Alignment page. If you were on the high block on ch 40 (equivalent uk26) and put this switch "halfway" down you could get on the UK channels 30 and 31. by Old n Slow » Sunday, excellent condition cobra 148 gtl dx mk2 complete with original cobra coffin microphone . There is NO markup on the radio cost. com mic audio on SSB has also been claimed to "sounds like AM". 7k 4. Factory Service Manual ( Covers 148GTL, 148GTL ST, 148 NW  28. WTT COBRA 146 GTL PEAKED AND TWEAKED WITH EXTRA CHANNELS. Cobra 142 GTL FS. Preset to channel 40, mode USB, clarifier centered  that the antenna can be lightly tapped with your finger for easy adjustment. 855 MHz: AM/FM/SSB/CW: 12 W: 120: Cobra 148 GTL ST: 26. Radios, amps, power supplies, we service and  5 Jul 2009 SSB CB Radios on Amazon: https://amzn. The instructions presented here are for the most common types. I am wondering what 2000 GTL,2010. This mod transforms SSB operation on the 200 and keeps your Transmit frequency locked when you tune Stations in using the Fine control. COBRA schematic diagram service manual circuit diagram wiring schema repair instruction guide user manual free pdf download. Resources listed under Mic Wiring category belongs to Technical Reference main collection, and get reviewed and rated by amateur radio operators. EBAY REGISTERED NAME MUST MATCH THAT OF PERSON HAVING ITEM SHIPPED TONO BOGUS MADE UP NAMES & ADDRESSES Thankyou kindly Owners Manual for the Cobra 148GTL 40 channel AM Cobra 148-GTL AM/SSB mobile CB radio with stock mic. Amp and Cobra 142 GTL for sale-- Hawl, 19:24:25 04/29/09 Wed Ok, well heres what I have, A very nice Cobra 142 GTL w/ Cobra hand mike(LOL thats what it says on the front of the radio) This is in almost mint condition with no modifacationd done to it. 2 MB) Cobra MR-HH450: User manual (6. Turn Down Mic Gain/Power Mic. If you have problem to find a manual, schematic or other file for a specific model, e. 2k ohm resister. FS; Cobra Apr 20, 2007 · im trying to learn how to do peak and tunes on cb radios. Set your COBRA 148GTL-DX to Channel 21 @ Mid band. united routes transport service · just toys classic Under the hood you'll find a Chevy 350 V8 mated to a T5 5-speed manual gearbox. Mark19960 7,304 views · 18:41 · " CONSERTO DE UM COBRA 148 GTL SEM  Alignments. and is normally twisted around the modulation wire. Free Ham Radio Classified Ads and CB Radio Sales worldwide. MOD Meter. com COBRA 148 / 2000 / 2010 GTL UNIDEN GRANT XL UNITS ONLY Extended Frequency "Extra Channels" Kit. If you have a power mic, try turning the power down on that. Anyone looking to collect this kind of ra £200 画像はebay DAK Mark X Custom with Cobra 148GTL (PC-412) これが理想の形を再現したカスタムDAK Mark X。 多分、ユニデンPC-412(Cobra 148 GTL)の基板にスワップ、ギャラクシーFC-347の周波数カウンターをビルトインさせた無線機です。 画像はebay 中のスワップされた基板の様子 2 Apr 2016 Cobra 148 Resurrection and TX alignment. MODULATION PROBLEM. Cobra 2000 GTL Frequency Counter Fix. The radio out-of-the-box is acceptable, performance is a bit low but with a few tweaks to make it a relatively good, loud CB radio. EBAY REGISTERED NAME MUST MATCH THAT OF PERSON HAVING ITEM SHIPPED TONO BOGUS MADE UP NAMES & ADDRESSES Thankyou kindly Owners Manual for the Cobra 148GTL 40 channel AM COBRA 148GTL 40 Channel AM/SSB CB Radio Owners Manual w/schematics (NO radio) - $19. 10. As I recall, it involved changing one crystal and tweaking the tuning of band-pass inductors. Go To the Cobra 148 GTL DX (fake) (PCMA001S) Alignment page. The 29 LX is a professional CB radio with a selectable 4-color LCD display based on the 29 LTD expo quick reference chart - cb tricks - home page. The radio comes equipped with a 2SC1969 RF transistor in the final output stage, a transistor that can produce 25 watts PEP at 12 volts Vcc. co. Remove TR3 2 . Remove TR24; cobra 148f-gtl Showing 1-7 of 7 messages. The site also offers two tuning options before shipping. Radio . I've also added my own tweaks. When I like someone's work, I stick with them. Solder BLACK wire towards collector of TR36 and WHITE wire towards pin 4 of IC4. COBRA. 6. Which one Download Cobra Electronics GTL 2000 electrical schematic 8. AMC CONTROL - HI 29. Cobra 2000 GTL Cover COMBO SET. 2. AM Signal Meter. 00 123C-M17 S/RF 250uA chrome scale 14x35MM face, body even Cobra 29(23chan) use R-123C, swap scale How to make Cobra 29LTD,Classics slide on TX & RX 1)Remove D-18 , R-110 , C131 and R-112. Cobra cb radio replacement parts Cobra 148 GTL-DX - $247. FA: Cobra 148 GTL (with Connex, "extras" and "pingers" 6. html. It’s back with 80 SSB channels (in addition to 40 standard CB channels), a front microphone connector, dual conversion AM receiver, and PA capability. A bona fide radio legend, the Cobra 148 has been the backbone of channel banter for decades. 5) Adjust VR10 for maximum PEP on AM. It functions both as a radio transmitter (when CCI3002. 148 GTL DX Copper board (late) 148 GTL DX Parts layout (late) 148 GTL DX PCB Layout top view 148 GTL DX Schematics (Early) 148 GTL DX Schematics (late) 148 GTL DX Service manual (Early) 148 GTL DX Service manual (late) 148 GTL DX Service manual 148 GTL DX Wiring diagral (late) 148 GTL DX Wiring diagram 148 GTL DX Operation manual 148 GTL ST 148 GTL DX Copper board (late) 148 GTL DX Parts layout (late) 148 GTL DX PCB Layout top view. This radio has the no TX or RX problem. 51 148 GTL Channel & Clarifier Modification (See Note on Page) Cobra 148GTL CB 40-Channel 12-Watt Radio (Black) (Discontinued by Manufacturer): Amazon. These chassis are remarkably stable after the clarifiers are opened and expanded. High Fidelity Receiver Modification for the Cobra 148 and Uniden Grant XL With very little effort, the receiver section can be modified to vastly improve the sound quality. Not permitted by FCC regulation. 405MHz) +/-0. Cobra's iconic 148 GTL took a slight redesign in the phase-locked loop system back in 2008 utilizing a Chinese produced chip . 21A (Old) Modulation Adjustment. Models include:- Kraco 2410/2420/2430, Pace 8003, Realistic TRC209-18, Royce 607, SBE LCM-8P. They changed to the XL series when they went to the Cobra look front panels. Brand: Cobra Band: CB. Mark19960 Cobra 148GTL with a bunch of sloppy work causing problems. Locked High SWR on Cobra 148 GTL. 12. NO PREAMP COBRA 148 GTL - . Using a Non-Metalic tool, In the AM mode, adjust L23 for 26. 2)Put jumper were R-110 was. Factory Service Manual ( Covers 148GTL, 148GTL ST, 148 NW ST) (dated 1997 1998) Page 1 to 15 there is a quick fix for this LOL just buy a Cobra 200 GTL DX and you will be all set because if you like the 148 you will love the 200 Dave Hollowpoint445 Advanced Member Username: Hollowpoint445 Post Number: 794 Registered: 6-2004 Sep 24, 2007 · Re: Cobra 148 GTL DX Mark II alignment Post by smokescreen » 19 Sep 2011, 00:07 Its a minefield but needless to say a 20Mhz scope wont resolve a 27Mhz signal. The First Cobra 148 GTL-DX manufactured was the MK1 Chassis Have a cobra 148GTL made in Malaysia Date of MFG 199610 Put on my bench and performed a complete alignment of radio using a 40  AM/SSB Radio The Cobra 148GTL features 40 AM and 80 SSB (Single Sideband ) channels (40 up and 40 down). cobra 148f-gtl: Jonathan S. Cobra 29 LTD Night Watch Classic Cobra 25 LTD Classic Cobra 148 GTL Classic These are fairly nice radios, although there are continual rumors of diminished quality due to their place of manufacture. Custom Built Cobra 2000 GTL CB Radio. 8. 148 GTL DX Schematics (Early) 148 GTL DX Schematics (late) 148 GTL DX Service manual (Early) 148 GTL DX Service manual (late) 148 GTL DX Service manual. 95 General HP40W Face Plate Assembley Application Chart: Alaron B-4900 F Palomar 49 F Cobra 1000GTL A RCA 14T305 O: Cobra 2000GTL L: Cobra 2010GTL-WX C Realistic TRC-410 *S UHF FM CB ( GMRS ) 7-10 10 Meter Conversion For Tram 0300 11-13 SBE Console VI & Si debander VI Amateur Conversion 14 Uni den MB8719 PLL Chip Frequency Conversion 15 Cobra 148 GTL Channel & Clarifier Modification 16 Frequency Expansion For Cobra 29GTL, 87GTL, 89GTL & 10Q0GTL 17 Frequency Mod For JC Penny, Colt, Lafayette, Hygain, Etc. 2 monolithic, this will widen up the audio on AM. 9. Cobra 148 GTL 148 GTL 148 GTL Radio pdf manual download. The first radio was a Cobra 148 gtl with the poor mans mod channels, The second was a Cobra 2000 gtl that he Supersnaked and the third was a Cobra 148 gtl F also Supersnaked. Go To the Cobra 148 GTL DX (fake) (PCMA001S) Alignment page Go To the Cobra 150 GTL (PFM-0089A-BB) Alignment page Go To the Colt 480 (PTBM048AOX) Alignment page A page which describes how to align the Cobra 148GTL CB radio. After careful re-alignment of the radio and re-considering this situation, I would have to say that it is just as competative than the other radios in its class. 00 + s hipping. 2k COBRA 148GTL 40 Channel AM/SSB CB Radio Owners Manual w/schematics (NO radio) - $19. So far re-aligning the receive only made a minor difference. I have probably 50 radios and they all blow this radio away on receive. Here’s why its the most durable rig around: the Cobra 148 GTL has long-range SSB capabilities, PA functionality, NB/ANL noise reduction and RF gain. Service manuals, schematics, eproms for electrical technicians. 18 RadioMods alignments for the Cobra 148 GTL-B. This is basically identical except for the lack of FM, and the PLL circuit which uses a uPD2824 ROM chip. 515-27. Again, before the ball joints and alignment I was happy with the steering. 405 Cobra 148 GTL (Newer 4-pin mike) 26. Photofact CB Radio Series service manual pages for the 1979 Cobra model 19GTL. 7k ohm resister. Cobra 148 GTL-DX needing a bit of a clean up. Change R124 to a 4. don't let anyone tell you any different. ) → This is the same radio as the Cobra 25. O. EPROM frequency expansion add on boards for amateur CB mods, cb radio schematics service manuals and projects, mike wiring diagram, bleeps, PLL pinouts, component data sheets, transistor and integrated circuit info, communications cbradio radiomods modification modify CB radio expand modifications expansion add ons bleep frequency ham HAM amateur radio projects repair fix broken dead no power popular today and easy'ish to convert for those all important "extra" channels. I used the cord and complete guts of hand mic to make it work. If you have some stuff that not is listed here you can donate this by contact mods. call L59. The Uniden PC-122XL is the same radio as the PC-122. Cobra cb radio wiring diagram Apr 18, 2020 · Channel Board For Cobra 146GTL & Amp; Uniden PC-122XL. Yes it will work, and if you're slick enough, you can put a pair of fixed resistors or a pc mount pot on the wires that you remove from the SWR calibrate pot, and you can set it to full scale at say, 3 watts, and you can retain SWR functionality. PAYMENT WITHIN 3 DAYS FROM PURCHASE BY PAYPAL ONLY. 700MHz May 06, 2015 · Cobra 148 GTL - Little or no out put power !!!! Put on my bench and performed a complete alignment of radio using a 40 MHz scope and LogiMetrics 920-S101 signal 148nw st block diagram tr4 2sc1815gr nb agc tr5 2sc1815gr nb agc tr1 2sc5345y nb amp tr2 2sc5345y nb amp tr3 2sc5345y nb amp d1. 14. FA: MAVERICK 250 and COBRA 148 GTL DX+. F. Newest revision can be set up for continuous tuning or a Band & +10kc switch. This can be installed in place of the old finals provided you do the following: Cb Cobra 148 Gtl Manual. 6) Adjust VR11 for maximum PEP on SSB. Input of Scope To TP-10 CH-19 AM ----- Adjust L-21 for Maximum RF (3-4vPP Typical) Cobra 148 GTL, 148 GTL-F, Cobra 2000GTL, 2000 GTL-WX, Pearce-Simpson Super Bengal MK II, President Grant (new), Madison (new), Uniden Grant, Grant XL, Madison: <L38, TR24-AMC, VR11-ALC, VR10-AM Power> LESCOMM SUPER RCI69VHP HIGH PERFORMANCE AM/SSB Radio! 75 to 85+ PEP OUTPUT!! - $459. 99. 6 MB) alignment instructions (733 KB), Some minor modifications (15 KB, in swedish) Uniden Cobra 25 LTD / Uniden PC66XL OEM Factory Meters with lamps. com uses a bone stock Cobra 148 GTL. $60. A better alternative would be the Uniden line of radios. Compressor- Remove C101. 2 Volts @ channel 40 (27. Pages are loose. F/S Cobra 142 GTL 10M rig. ) 3. Radiomods. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff. dynamodb sort by date descending, Learn about the building blocks of DynamoDB your app will need. Page 5 150GTL ALIGNMENT REVISION: 1. Cobra 148GTL (PC-412). ALIGNMENT SYNTHESIZER. COBRA 148-GTL Malaysia Model) Dec 15, 2017 · Cobra MR-HH425: User manual (3. This is when your test radio comes in handy. Download COBRA 142GTL service manual & repair info for electronics experts. Change R126 to a 2. If your radio has a CB mic gain knob, try turning it down (counter clockwise). 3. Re: Cobra 148 GTL DX Mark II alignment Post by RD250 » 16 Sep 2011, 14:46 The noise figure of the receiver front end RF amp TR17 is heavily influenced by its input impedance and this is affected by the setting of L7 and also the source impedance driving the radio so it may be possible to improve S/N by optimising L7 with the station antenna Mar 13, 2010 · In my first post of this review for the Cobra 148 GTL, I said that it wasn't up to the competition of other SSB radios in its class. 148 GTL ST is SoundTracker not 148 GTL DX. Cobra 148 GTL DX MkI sent into The Shack in a bit of a mess. Set your COBRA 148GTL to Channel 21. Re-tune L37 and L38 for maximum AM . Alignment information for the PTBM122 PCB Preset to channel 40, mode USB, clarifier centered. Cobra 142 GTL, Cobra 139 XLR, Cobra 89XLR Freq Counter , Transmit & Ultimate Cobra Dynascan Ham CB Radio Repair Service Manuals (Manual s. 57-59. $23. If you get this in the wrong place you will be fighting an uphill battle. After tuning it seems to have cleaner audio than most 148’s and takes less tweaking to get to the same output numbers. Make sure your CB mic is plugged in securely. May 23, 2011 · If you want your Cobra 29 LTD to be a loud booming talker you don't have to pay some cb hacker to "fix ya up". The braid is the common wire for the TX/RX/Mod. - When doing alignment audio output is low, lots of distortion. Go To the Cobra 150 GTL (PFM-0089A-BB) Alignment page Aug 28, 2019 · Just fitted a CPI base mic to my Cobra 2000 GTL for ease of use. Service Handbuch Schaltungen Reparaturanleitung Bedienungsanleitungen kostenlos pdf download. 148 GTL two-way radio pdf manual download. Cobra power mic and Cobra 148 GTL. Jul 12, 2014 · Dual Conversion AM/SSB US/Australian Models: Cobra 148 GTL, 148 GTL-F, Cobra 2000GTL, 2000 GTL-WX, Pearce-Simpson Super Bengal MK II, President Grant (new), Madison (new), Uniden Grant, Grant XL, Madison: <L38, TR24-AMC, VR11-ALC, VR10-AM Power> ButtFuzz’ PLL Peak Tweak KG4ZPN’s CB Tune by PLL Type There is no guarantee expressed or implied Cobra 148GTLF Cobra 2000GTL Undien Grant XL Uniden Grant LT 1. € Sometimes there are minor parts number changes (TR10 = Q10, etc. Please help about changing Cobra 148 GTL DX: User manual (961 KB) Cobra 148 NW ST: User manual (1. com Video overview of the Cobra 148 GTL AM & SSB CB  2 Dec 2014 Cobra 148 Resurrection and TX alignment - Duration: 18:41. TIMES MICROWAVE LMR-400 COAX, RF CHOKES. 148 GTL ST Cobra 148GTL, President AR-144/AX-144, Midland 6001/7000 (new version), Realistic TRC451, Sears 663. Cobra 200GTL The HF50-12F MOSFET (Q35 and Q40) finals are no longer available. 2010. Switch to Band C, CB Band, channel 1, Clarifier at the 12 o'clock position. Do not substitute. The Uniden President Grant XL mobile is probably the last to be made of the President line and at this time Uniden doesn't have a SSB radio replacement. AM Squelch. The LesComm Super RCI69VHP Includes; DC Input Power Filter/Buffer Capacitor Upgrade 10. Need help with a Cobra 148 gtl. Check for breaks or damage to the plug and cord. Press the PTT (Push-to-Talk) switch,. Go To the Cobra 140 Alignment page. Solder BLACK wire to the positive side of hole and other side towards TR27. The letter “B” at the end sometimes means the Base version of an otherwise identical mobile chassis (Midland 13-862 & 13-862B, Pace Sidetalk 1000M & Sidetalk 1000B, etc. The use of all solid state circuitry and its light weight result in high reliability. BUY Ham Radio Equipment and Bid on cb radio auctions! The Defpom Cobra 148 GTL Alignment page. Cobra 148 gtl alignment and 2 tone test for Ben in Florida Grant, the Cobra 148GTL is the same as the Cobra 148F-GTL, and so on. $25. sockets are about the easiest to sort out, the 5 pin din can be very hard to wire Apr 18, 2019 · Good question, I’m not horribly active on CB these days, and I should note I’ve NEVER seen a CB that I would consider perfect. 240Mhz. Swing Mods are snake oilDon't pay to have this doneAny kind of modlike cutting your limiterie. ALIGNMENT POINTS: * LX+BFO OSC = aligned @ 36. 00 shipping. The model number of your CB radio is located on the unit. (Philippines) by RBR762 » Monday, Cobra 138 23ch alignment procedure. This modification is known as the Negative Peak Compression / Reduced Carrier mod aka npc/rc. ) New cb radio, cobra 148 gtl Ham Radio Radios New radio, cobra 148gtl SNAKE MODS: -Studio audio -wide narrow filter -frequency counter -frequency alignment -peak and tune -variable power -cap upgrade -rx Cobra's iconic 148 GTL took a slight redesign in the phase-locked loop system back in 2008 utilizing a Chinese produced chip . It lets you talk from your truck, car, home, business, or boat to other people who have a CB radio. CB RADIO Mods. 3) Remove TR24 4) Re-tune L37 and L38 for maximum forward AM power. 22 DOWNLOAD Tune… Categorías CB Radio Mods Navegación de entradas Cobra 148 GTL Repair: 2SC1969 replacement The 29 LX MAX offers the benefits of a Bluetooth® enabled smartphone right from a professional CB Radio.  Livecbradio. 7 I. AM Freq. The Cobra 148 GTL-DX Transceiver was manufactured in Taiwan (Former Rebublic Of China - R. 148 GTL. expo quick reference chart brand cobra midland president uniden model 29gtl 29ltd classic 29 night hawk st watch wx 87gtl 89gtl 1000gtl 100m (lc7120) 77-101b 77-101c 77-824c 77-856 dwight d (1003002) thomas j (1013001) zachary t (1002002) pc76 xl xlw pro 76 ptc-104 kit type a a+ a-- a++ b c l n *s realistic 25 40 plus 40x 66ltd 90ltd (lc7131 Cobra 148 GTL (Newer 4-pin mike) 26. 8 MB) Cobra 25 WX ST: User manual (885 KB) Cobra 29 LTD Classic: User manual (5 MB) Cobra 148 GTL (Older 5-pin side mike) User manual (6. If you want a SSB to talk long distances in addition to regular CB, the Cobra 148 GTL or the Uniden Grants are excellent radios. Counter To TP-13 (IC-1 Pin 8) CH-19 ----- Check for 10. Resources listed under Radio Modifications category belongs to Technical Reference main collection, and get reviewed and rated by amateur radio operators. Key the radio under test with the test rig set to the same channel. g. Carrier Adjustment: VR10. If at all possible, look for the older Cobras built in the Phillipenes or the Unidens built either in Phillipenes or Taiwan. Check the pins in the radio for damage as well. We've gathered the best Cobra 148 Gtl discounts & best prices from top websites. 50-TRAM D64 - $286-1975 Starduster, in-the-box (152)-Turner Sidekick NOS ($206. Denoted by a side mounted microphone connector. The same board was used in the Cobra 2000 GTL. These radios can be cleaned up pretty good. CB radio modifications category is a curation of 20 web resources on , Firestik Library, Rogerbirds HR 2510 mods, Defpom CB and HAM radio mods. $20. 51 30. It has 28 pages and is dated 12/1979. to/2SFR0Tz http://www. 148 GTL DX Wiring diagral (late) 148 GTL DX Wiring diagram. 148 GTL DX Operation manual. Mar 27, 2013 · You should be able to hear relatively pretty will with a wire stuck in the so239. Well known for being an excellent radio and being a mk2 is the better version with problems fixed since mk1 edition. The Livecbradio. Note that there is a limit to the number of files you can download. Apr 02, 2016 · Just working on one of my ebay parts radios that has been more or less fixed. Hood Alignment SHIM alternative? Bronco Tech BC Vintage a/c, Scat Procar 2K seats, Alpine/Pioneer, Bear, Cobra 148 GTL/Texas Star. Note: The shop used a caster/camber alignment kit (MOOG-K932) on the ball joints to get everything lined up. Owner has had a go at repairing this one himself but did not get very far. Cobra 148 gtl made in malaysia. Go To the Cobra 148 GTL (PC-412) Alignment page. [condensed from my notes over a Cobra 148 - due to labeling and additional helps him! Leave the carrier adjustment alone and turn the AMC up or cut R131 Number #1 CB Transceiver of all time. Angelfire. S. 50 shipping. 19 yrs. You will find that this radio has the capability of picking up 40 different channels. It is a great radio. MAIN BOARD AND POWER SUPPLY FOR CB RADIO COBRA 2000GTL. Cobra 142 GTL. Ending Tuesday at 6:05PM PST. 0 BURKE STEP PRESET TO CONNECTIONS ADJUST PROCEDURE RF POWER METER TX mode, AM, Adjust for a reading of S-9 on the 29. 148 GTL CUT R131 VR10, (ssb)VR11 148 GTL-DX (early prod. This device has a wide range of technologies built into its design. NOTE: RADIO MUST BE IN ORIGINAL CHANNEL CONFIGURATION. Refer to the schematic diagram and parts list. Here is an image of the alignment spec. There is likely some way the Cobra 29 could be converted, but it's not a radio I'm familiar with. Im asking $125. 2k resistor Change R124 to a 4. MK1. Filter Upgrade 1st RF Transistor Upgrade Voltage Regulator Filter/Buffer Capacitor Upgrade Driver & Final Bias Correctly Set COMPLETE TX & RX Alignment With Emphasis On TX Audio Unlocked Clarifier Hi Cut Filter On The CB Radio Talk Forum. I have had many of these radios in the past but never customized like these. CITIZENS BAND SSB/AM 2-WAY MOBILE RADIO. It makes you look for AGC problem, don't get fooled! It is an Audio Amp problem. nz Cobra 148 GTL-B Printed Circuit Board PTBM122DOX. Solder the components as shown below. Performance wise though I would rank this radio higher than a 148. CUT TR24 Change R126 to a 2. 9: Unlock the Fine clarifier for RX ONLY!! - same as Cobra 148 GTL-DX. 9650 mhz on the counter. Cobra Mods Radio Modulation Power Cobra 148 GTL POWER TWEAKS: 1. Much smaller than the Cobra 148, but that’s because it has less features. Features included Volume, Squelch, R. This kit is designed to add the "extra channels" to your Cobra 148-GTL, Cobra 2000-GTL, Uniden Grant XL mobile units. Ever compare it to the old Cobra 148 GTL channel mod? The Galaxy ends up with roughly the same extra frequencies! Note: According to Galaxy, broad-banding (opening the PLL to it's fullest potential) the DX-959 simply requires the removal of diode "D3" on the VCO module. 3)Take orange wire from delta tune and unsolder it from board then resolder it to Tr-23 (Solder to the pin closest to front of board. Modification of radios outside of design limits voids your authorization to use the radio. 89 GTL Schematics 89 XLR Alignment procedure 148 GTL Operation Cobra 148 GTL-DX MB8719 tune up (too old to reply) the circuit is on the same site and was the alignment but i can't see it The diagrams I have for the 148 VARIABLE ALIGNMENT SECTION PAGE 40,50 COBRA 21 LTD CLASSIC (New Model made in China) 4 COBRA 25L'1'D WX CLASSIC. Deaf as a post, miles off frequency, water corrosion on the antenna socket, no receive signal meter. I am not just talking about audio, but there is no detectable 27 mhz signal on TX or RX. 6 MB) Cobra 25 Plus: Service manual (6. ) Cobra 148 gtl dx 11 meters to 10 meters conversion. Go To the Cobra  Cobra 148 GTL POWER TWEAKS: 1. The "Broadcast Audio" is superb. Showcasing Screws Bolts online. Cobra 148 for sale eBay The Cobra 148 CB radio is built for professional use when it comes to communication. of quality service and customer service and very fast communication What I provide is the full Purchase and setup of the new radio`s that I do. RCI-2950DX, 1978 Cobra 148 GTL Taiwan, SHURE526T MIC, Tug-8 With Astatic 10 DA Head, Astatic 575M6, ASTRON 70/20 AMP POWER SUPPLIES, IMAX 2000 W GROUND PLANE KIT. Cobra 148 GTL DX MkI with a SS360FM fascia sent into The Shack with no before I could go any further with the alignment, down to a faulty 68K resistor. People have said "that thing sounds like a FM radio station". The AMC is TR-26. SLIDE AND ALIGNMENT FOR THE 148GTL MY WAY. 21XLR Modulation Adjustment. 15. 4 pin mic. upper channels for Cobra 148 GTL. The Deaf and off frequency issues were down to the alignment of the radio being miles out. CONTROLS FOR CB RADIO COBRA 2000GTL. The basic Cobra 148 GTL-DX was a 120ch Low/Mid/High AM/FM/USB/LSB/CW radio It had a "hidden" secret on the ch 9 switch. The PCB in this radio is almost identical to the Grant (PC-  Cobra 148 GTL-B Printed Circuit Board PTBM122DOX. 8 MB) Cobra 148 GTL (Newer 4-pin front mike) User manual (301 The LC2824 is a very small module that replaces the uPD2824 PLL IC and gives you expanded capabilty in radio's like the Cobra 146, 29, the Uniden AR144, AX144, PC244, PC122XL, PRO810, Realistic TRC451/453/465 and just about any radio using the 2824/16 PLL. Cobra 148 / Grant / Jackson OEM Meter Find many great new & used options and get the best deals for Ultimate Cobra Dynascan Ham CB Radio Operation Repair Service Manual 500 on DVD at the best online prices at eBay! Free shipping for many products! I've modified this to specifically apply to the Cobra 2000 GTL. 39)-CPI BASE - $520-W hat's amazing to me is that these are coming out close to Thanksgiving. You'll discover the basics of tables, items, attributes, and how they work together to make a database for any scale you may need. the secret to google is narrowing down the search criteria,less info given the better,for instance if you type in cobra 148 gtl dx schematic diagram,google will turn up every site where cobra,148,gtl,dx,schematic and diagram are found,probably thousands of websites,if you only put pb010 schematic Search tip. COBRA EXTERNAL SPEAKER FOR COBRA 2000GTL #2. ca: Electronics. Cobra 148 GTL Power Tweek and Modulation 1) Change R126 to a 2. Should a failure occur, however, replace parts only with identical parts. I do not recommend cutting R131 which limits the modulation. It has 9-foot microphone cord for easy reach and tactile controls for added convenience and safety when adjusting functions. only junks your radio and makes it distorted. 7. 0000 MHz to 29. Input of Freq. 5V . Cobra 142 GTL F. i have repaired these and it's brother cobra 148 GTL the same way. For example, the Cobra 29LTD is identical to the 29LTD-WX, the Uniden Grant and Grant LT or XL are identical to the President Grant, the Cobra 148GTL is the same as the Cobra 148F-GTL, and so on. View and Download Cobra 148 GTL operating instructions manual online. * SPRAY CLEANED: (Cases, chassis, screws, potentiometers, switches, ), * LUBRICATED: (All control shafts, ), * REPLACED: (S-Meter, AM S9 trimmer, ). Cheap Cobra 148 Gtl prices. dk. Change R114 to a 10K, and C46 to a . cbradiomagazine. The 148 was ubiquitous in the 1980s and a regular candidate for mods and conversions. With the SSB radio capability, the Cobra  Go To the Cobra 142 GTL (PC-385) Alignment page. 13 1n4148*2 Variable RF power mod for Cobra 142 GTL Welcome to the CB junkies cb radio forum You are currently viewing the forum as a guest. Cortland Street, Chicago, Illinois 60635, USA in the late 1970's and early 1980's. 13. You do not have to do anything but contact me to get the radio done. D11 etc, etc. The Cobra 146GTL and Uniden PC- 122XL are low-cost AM/S SB radios using a gPD2824 PLL chip. In LSB mode, adjust L22 for 26. This is the Cobra 139 XLR. and Mike Gain controls, and a new FCC mandated receive-only Clarifier. 29 Jun 2017 Cobra 148gtl repaired and aligned for brad. VCO DC Voltage (DONT ADJUST IF WORKING OK!) 1. 4 MB) Cobra 18 WX ST II: User manual (1. The radio was a half kHz off frequency on transmit right out of the box as well. The LC2824 is a very small module that replaces the uPD2824 PLL IC and gives you expanded capabilty in radio's like the Cobra 146, 29, the Uniden AR144, AX144, PC244, PC122XL, PRO810, Realistic TRC451/453/465 and just about any radio using the 2824/16 PLL. 3810, Uniden PC-244. Many of you already know that the 148 GTL and Grant XL are the same radio. This radio is small. SSB Sig Meter. Grant XL or 148 GTL-F/148 GTL. Counter PCB Schematic 148F GTL Counter PCB Schematic 148F GTL. C) for Cobra Communications Product Group, DYNASCAN CORPORATION, 6460 W. We invite you to JOIN today so that you can post and interact with our members. 8719-192-L2-PLCC Cobra 148/148F KIT INSTRUCTIONS There are several different versions of the Cobra 148. After all, if you lok at a schematic of a Cobra 148 GTL Clarifier, it will now look identical to the circuit you just made. Sometimes there are minor parts number changes (TR10 = Q10, etc. 6. This is for the counters The Cobra 148 GTL re-issue I am working is deaf right out of the box. Uniden also made the PRO-810e, a base radio with the same board as 130004 for DG130D: 140003 for SX007: 401016 for SX101: G14-TRD123: 410008 Cobra CB 29 LX LE ALIGNMENT PROCEDURE V. Cobra 200 GTL-DX REV1 and REV2 Transceivers. Point for use on the Cobra 148 GTL, 142 GTL, 140 GTL, Uniden Madison, Grant XL, Washington and many more that use the MB8719 PLL. 5 X 11 inches Ham radio, amateur radio, two way radio, cb radio, walkie talkie service manuals and reapir information Basic Mics - These consist normally of three coloured wires and a braid/screen. Compare $27. My favorite is the Grant. manual in South Carolina 9440 can indeed cobra Cobra 139 xlr manual make. 01 date. This mod unlocks the 'Fine' clarifier to make it RX receive ONLY, just like the 148 GTL-DX. Cobra (Dynascan) Secret CB Index By Model Documentation Project 148 GTL Channel & Clarifier Modification 148GTL-DX Alignment PLL / RX / TX (Early) 16. Good used condition. Cobra devotees praise it for its longevity and frills-free capability. RF Meter. Also showing the transmitter output on a spectrum analyzer. swap Cobra 142 GTL SSB base for Grant/148/similar. FS:Cobra 142 GTL like new in factory box. Chassis Numbers. So what would I find perfect? A CB with the following features: Key Features: Modes: AM &amp; SSB Frequencies: All 40 Channe Galaxy Front Bezel for DX 33 / 44 / 77 Connex 3300/3300HP Part # PT148N112A May fit one version of the Cobra 148 GTL that was made by Ranger. $65. I used the following equipment for the alignment I have an old cobra 148 gtl dx,which i would like to Hello My name is Tim and Welcome to The official Snake Radio Customs website. Like what you see we are a full service shop. For discussions on CB Radio Alignment and Tuning. TX Freq. It could be caused by someone in Links to Microphone wiring diagrams category is a curation of 30 web resources on , Electro Voice 664 Wiring, Kenwood Pin Connectors, Microphone connections by G4WPW. Go To the Cobra 148 GTL-B (PTBM122DOX) Alignment page Go To the Cobra 148 GOLD DX Alignment page. Solution: Use O-Scope and a Signal Generator producing about 3uV or S3 on radio meter, 30% modulation. This was Cobra's "middle of the road" AM/SSB base station. Cobra 148 gtl made in malaysia Cobra 148 gtl made in malaysia Hood Alignment SHIM alternative? Bronco Tech BC Vintage a/c, Scat Procar 2K seats, Alpine/Pioneer, Bear, Cobra 148 GTL/Texas Star. Ignore the initial alignment column, it matches the final column because I asked the shop to re-check the alignment: Hello Select your address Best Sellers Gift Ideas New Releases Whole Foods Today's Deals AmazonBasics Coupons Gift Cards Customer Service Free Shipping Shopper Toolkit Registry Sell The CB Radio Talk Forum is for all my fellow radio enthusiasts, or up-and-coming radio operators to seek or give advice. Power Tweek and Modulation. Alignment Use the alignment locator below for adjustment locations. The Screwdriver jockeys had been having a right old diot inside this rig. The 29 LTD LX BT offers professional drivers a safe and easy way to communicate in a first-of-its-kind CB radio with Bluetooth® technology. All controls seem to work as they should, the meter works and all lights are in working order, including the bright/dim feature. View and Download Cobra 148 GTL 148 GTL 148 GTL operating instructions manual online. Press the PTT. cobra 148 gtl alignment

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