Save. i'm interested in this one too. value of cap used was 47uf, value of resistor was 220 ohm. D-minus, same basic radio and layout. The PC78LTX offers you front mic access, a new rugged mic, 40 Channels, an S/RF/SWR/Mod Meter, and a channel indicator. amzn_assoc_linkid = "d1f76c3be326d1e5aa6f1f269686729c"; by bburdette Thursday, 04 February 2021, 21:31 PM Hey Guys, Just bought a Uniden PC78LTX CB. Keep your CB station performing at its best using the . D-minus. Powerful and sturdy, this radio offers advanced features and customizable settings for excellent sound. Looking to find other HAM / CB radio operators on-line? Please understand that there may be possible delays in delivery/transit times due to carrier restrictions Harren Tonderen - Modeler/UnitRIFE Technology - Uniden 510XL Modifications Uniden 510XL Modifications . endstream endobj 1197 0 obj <>stream 16. it worked great after a peak and tune. you seen it here first yall.List of mods:Peak L208 for max carrier (mine saw 8.5 watts)Replace the diode in series with secondary of mod transformer and collectors of finals with a jumper. Also included is a channel selector, a TX/RX indicator, instant channel 9, dim control, noise blanker, RF gain control, a PA mode, mic gain control, and a Hi Cut Function. by sonoma April 20th, 2016, 11:32 pm, Post datainmotion Member. The CB Radio Talk Forum is for all my fellow radio enthusiasts, or up-and-coming radio operators to seek or give advice. by bburdette February 4th, 2021, 2:31 pm, Post Powerful and tough, this radio offers advanced features and customizable settings for excellent sound. Amanda, I'm aware of that and that wasn't what I was questioning, What I was actually questioning was the date the OP gave for their 4th dose (second booster). . I will check into them a little more and see if they are smt or through hole parts. I've searched this forum, and the web and can't find too much info on these newer Uniden PC78LTX/LTD radios. I can't find any. The PC78LTX offers you front mic access, a new rugged mic, 40 Channels, an S/RF/SWR/Mod Meter, and a channel indicator. Click to enlarge. Also included is a channel selector, a TX/RX indicator, instant channel 9, dim control, noise blanker, RF gain control, a PA mode, mic gain control, and a Hi Cut Function. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. Replace TR10 (2SC2029) with a 2SC1969 then tune L16,L17 and spread L14 For even power across band. Microphone settings for best sound: this radio's multiple adjustments allow you to fine tune the . Uniden PC78LTW mods Jumper C61 with a 67pF capacitor. For more information go to www.P65Warnings.ca.gov. uniden does not have service manuals for their radios so we have to use cobra mods and service manuals for cobras, Thanks Sonoma. Cobra 29 LTD super modulation modification. Quickly find answers to your questions by: 1. KcgBt6C{nF$D(M)mBZDnEF14Y,H`rGp WgR|s~ljo'y8WmZ@P>i :X 7^+{?2336urB3XzhEq+- ;mzqXs4SS]$>?6A{DIwkvR.n:1^x42k`M#T~bb5>/ ^hqnn#Iv, Something like the JP36 mod for the Cobra 29. The WorldwideDX Radio Forum was originally established in 2001. by d-minus April 21st, 2016, 9:40 pm, Post CB Radio with 40 channels and a 7" color display. Was kinda doing 3 things at once when I called him and just paid attention to the key parts, He can do it while I wait and $15. Add to Wishlist. you can talk over it. They certainly are cheap enough to buy. If your pot is working backwards, flip the two outer wires. I am willing the mods that work on one will not work on the other. STARTING AT JUST $4.99 CLICK HERE TO ORDER METER INSERTS Lamination. ive been looking too cant find anything all i know dont buy uniden. Hit the road in trucker's style with the Uniden PC78LTX CB Radio. excellent sound. I'm looking for tune up/mod info on these units. Replace R50 (3.9 Ohm) with a 1 Ohm. a battery installed), (wired inside the radio with The WorldwideDX Radio Forum was originally established in 2001. Are they as easily modified as a cobra29ltd. CMX760 Bearcat Off-Road Compact CB Radio with Mic Display. offers advanced features and at its best using the CB's by sonoma April 21st, 2016, 8:52 pm, Post Keep When you needthe low down on the road ahead, count on Uniden. Also included is a channel selector, a TX/RX indicator, instant channel 9, dim control, noise blanker, RF gain control, a PA mode, mic gain control, and a Hi Cut Function. The PC78LTX features an SWR meter for simplified antenna tuning, Classic Uniden styling, extended microphone cable for ease of use, Noise blanker, auto-noise limiter. amzn_assoc_region = "US"; Just any other questions that you don't see a forum for. does anyone know how or where I could look to find out how to do this? Re-tune coils L13,L12,L11 for maximum forward power output. Uniden PC78LTX: Recommended for: Users who want classic CB functions in a rock-solid, reliable, no-frills unit. built-in SWR meter to Wired internal to the radio with tune-up to the entire radio to increase power, audio and performance JavaScript is disabled. Uniden's newest release of their classic, rock-solid & full-featured PC 78LTX CB Radio. FM adds clear communications for close range. Hit the road in trucker's style with the Uniden PC78LTX CB Radio. We'd really appreciate it! (D404. Remember to subscribe !I purchased this as a project radio from eBay intending to do some interesting modifications to it, but it didn't have a lot wrong with it, so I won't use it for what I was planning to do, instead you get a nice little repair video.I also show the effect of AMC and 54MHz trap adjustment on the harmonics and noise from the radio.Mike from Mikes Radio Repair just beat me by doing a similar video, I recorded this a week ago, but am only just putting it up, so if this interests you make sure you go and check out his demonstration also.Please support me so I can make more repair videos: https://www.patreon.com/TheDefpom #ifixstuff #thedefpom #electronicsrepairTheDefpom Merchandise: https://teespring.com/stores/thedefpom==========================================Some Of My Electronics Tools (video and purchase links)==========================================Boonton------4220.8210: https://defs.link/?u=e1eddcFluke------8842A:45: https://defs.link/?u=eac51d343A: https://defs.link/?u=13c93d5200A: https://defs.link/?u=a43c99540B: https://defs.link/?u=0c6bd9893A.A90.HP/Agilent/Keysight------4261A: https://defs.link/?u=07ed955005A.5342A 18GHz: https://defs.link/?u=5f75136181B: https://defs.link/?u=b12aef8012B: https://defs.link/?u=ca57648648B: https://defs.link/?u=da52a38901B: https://defs.link/?u=535835DSOX1102G: https://defs.link/?u=a68d39 https://defs.link/?u=12d498E3646A: https://defs.link/?u=128f4aMarconi------2022D.2955.TF2103: https://defs.link/?u=61baaaRohde \u0026 Schwarz------SMY: https://defs.link/?u=93514bCMU200: https://defs.link/?u=8ccd72Polarad SPN: https://defs.link/?u=2ead82Siglent------SDM3065X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498SDS2102 (hacked to 340MHz): https://defs.link/?u=1ed0fe https://defs.link/?u=12d498SPL-1008.SDP1168X: https://defs.link/?u=1ed0fe https://defs.link/?u=12d498SDL1020X-E: https://defs.link/?u=a0eccbOther Equipment------KSGER T12 Soldering Iron: https://defs.link/?u=620ace http://defs.link/?u=5c112eQuick 861DW: https://defs.link/?u=138c0f https://defs.link/?u=a3fc81S-993A: https://defs.link/?u=079677 https://defs.link/?u=e855a0EEVBlog BM235: https://defs.link/?u=12d498YR1030 Battery ESR: https://defs.link/?u=c56527Heathkit IT-12 Signal Tracer.Racal Dana 1992: https://defs.link/?u=8eeebaBird 43: https://defs.link/?u=4b18f7Sinadder 3: https://defs.link/?u=2bf1ddAudio Control SA-3050A RTA: https://defs.link/?u=a04df2Korad KA3305D: https://defs.link/?u=69090aPDVS2mini: https://defs.link/?u=869ba4Valhalla 2703: https://defs.link/?u=06bcfcFeeltech FY6800: https://defs.link/?u=8b98cd http://defs.link/?u=34d101Eakins Microscope: https://defs.link/?u=b0278b https://defs.link/?u=262327Mustool G600: https://defs.link/?u=b8bc26 https://defs.link/?u=33f0aaHandheld Equipment------Uni-T UT210E: https://defs.link/?u=391ce3 https://defs.link/?u=ea4edcDER DE-5000: https://defs.link/?u=0d9160 https://defs.link/?u=12d498MK-328: https://defs.link/?u=0d9160 https://defs.link/?u=739ee7MESR-100: https://defs.link/?u=0d9160 https://defs.link/?u=009419ESR Meter: https://defs.link/?u=0d9160HOPI: https://defs.link/?u=7fab55PeakMeter PM6252: https://defs.link/?u=59ef66HS1010: https://defs.link/?u=10c699Thermal Camera: https://defs.link/?u=280cca https://defs.link/?u=4a2256 Uniden PC78LTX CB Radio. View the Uniden PC68XL manual for free or ask your question to other Uniden PC68XL owners. amzn_assoc_ad_type = "link_enhancement_widget"; ), wired inside the radio so that We are working every day to make sure our community is the best Radio Hobbyist's site. Care to buy us a beer? Uniden PC78LTX modification information? just use the cobra 29 ltd mods for your radio. In the U.K. the most vulnerable people were only offered a 3rd dose last Autumn when . Also included is a channel selector, a TX/RX indicator, instant channel 9, dim control, noise blanker, RF gain control, a PA mode, mic gain control, and a Hi Cut Function. get a variable dead-key , a real alignment and add a 2018 xtreme mic . amzn_assoc_placement = ""; The PRO401HH radio is a mobile radio designed for use in the Citizens Band (CB) Radio Service. The board inside is mostly surface mount components. You found us! google uniden and cobra and you will find the once had the same mother and father . precisely tune your antenna For a better experience, please enable JavaScript in your browser before proceeding. nstall a power The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Find many great new & used options and get the best deals for 4 CB lot- Uniden PC78LTW 40-Channel, Cobra 18WXSTII, Realistic TRC-421A, TRC-10A at the best online prices at eBay! And what are some good sites for references on modifications. I made a thread on the mauldroppers cb forum about these modshttp://www.mauldroppers.com/showthread.php?24086-Uniden-PC68ltx-mods-(surface-mount-radio)\u0026p=333632#post333632 by TheCBDoctor May 12th, 2021, 3:52 am, Post Why replace the final if it's still working? We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. Out of stock. at christmas I bought one 78 on sale for 60.00 shipped and it was new and had through hole parts in it. Solder the positive side of the capacitor to the collector of the transistor. This Uniden is loaded for the . Thanks in advance. Reading your owner's manual. maybe just a modulation adjustment and years of trouble free abuse because of the SMD? Condition: New Quantity: 3 available 44 sold / See feedback Price: US $159.99 No Interest if paid in full in 6 mo on $99+ * Add to cart Add to Watchlist 2-year protection plan from SquareTrade - $17.99 44 sold Free shipping and returns 26 watchers PortableElectronicDevices Electronics. Product Overview Integrated SWR Meter PA Function Hi Cut Uniden's front panel mic connector, instant channel 9, PA/CB switch, RF gain, and Mic gain controls round out the feature set of the PC78LTX. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. It will operate on any of the 40 AM frequencies authorized by the Federal Communications Commission (FCC). Jumper C61 with a 67pF capacitor. PC78LTX CB Radio. View and Download Uniden PC78XL user manual online. Uniden BEARCAT980 Manual 1. Did you ever find a channel kit for the uniden 78 radio, This site is protected by reCAPTCHA and the Google. Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs. Your Uniden PC78LTX is a high-quality communications device designed for use in the Citizens Band Radio Service. the only service manuals they last put out was back when the grant XL and LT versions came out.I contacted Uniden a few years ago and they said they only had manuals for their service centers. With this radio, you never have to miss another transmission, even when you are driving. HomeUniden PC78LTX 40-Channel Trucker's CB Radio with SWR. Classic looks with easy to use controls.. Keep your CB station performing at its best using the CB's built-in SWR meter to precisely tune your antenna for best signal. I shot some pics of one of these last week. truck stop swing mod fer yer ray-deee-oooo. The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Hit the road in trucker's style with the Uniden PC78LTX CB radio. Sonoma, if you don't mind me asking, where in OK are you? Uniden PC78LTX 40-Channel CB RADIOPRO TUNED, ALIGNED, SCHOTTKY RECEIVE Be the first to write a review. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Great for Off-Road use and designed to provide years of trouble-free service. Compact Radio for Off-Road with mic display. Compact Radio for Off-Road with mic display. Add to my manuals. For a better experience, please enable JavaScript in your browser before proceeding. thank you. of 20 watts with 80+ watts peak power. Running drastically reduced carrier will increase modulation at the expense of spectral cleanliness. Free 3-Day Shipping at Right Channel Radios! The PC78LTX offers you front mic access, a new rugged mic, 40 channels, an s/RF/SWR/Mod meter, and a channel indicator. by kraftwerk1976 April 21st, 2016, 9:43 pm, Post Doing the mod this way will allow you to vary your carrier power from zero to full and anywhere in between. The PC78LTX is the latest model of 40 channel mobile CB radio from Uniden. Visiting our customer support website at www.uniden.com. Should run fine with a Palomar 4 pill. maxon is a cousin two . thank you. I have heard some on the air, though, and they sound great. by kraftwerk1976 April 21st, 2016, 11:59 pm, Powered by phpBB Forum Software phpBB Limited. Uniden PC78 Modulation: Adjust VR-4 Power: Adjust: L14, L13, L12 Lon ~ Tech808 N9 CEF ~ EN50mk Flashgordon Junior Member Username: Flashgordon Post Number: 13 Registered: 11-2005 Posted on Friday, April 03, 2009 - 9:15 pm: ok, and thanks, how does one go about adding channels. Post Jan 27, 2012 #8 Uniden PC68ltx mods (surface mount component radio peak and tune) 631nj 368 subscribers Subscribe 4K views 2 years ago truck stop swing mod fer yer ray-deee-oooo. You can also click here to see all the manufactories that mods.dk have manuals, schematics or other files from. Is there any information on doing this? You are using an out of date browser. Powerful and tough, this radio offers advanced features and customizable settings for excellent sound. Remove TR16. The Citizens Band Radio Service is under the jurisdiction of the Federal D-minus, if I'm not mistaken, the PC-78LTX has an SMT board, which is totally newnot the same as the PC-78LT. Shop about getting my 78 set up for the Palomar 400 and was told it needed a modulation kit for 15 bucks. Don't recall for sure. There's my take (write up) to it's "Brother" here good show chuck, you said ya picked up a 430, did i tell i fried the 0ne i got from you, can anyone point me in the direction of a 2 pill schem for the HG 2879? Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs. Maybe I didn't look hard enough. Product ID: PID3893. for best signal. only 4 left in stock. This is perfect to match many amplifier types. effects. Hit the road in trucker's they would not sell me one or any other shops I know of. dual controls on the side or back to control speed and echo Also I don't want to run the amp all the time, Can it be set up to work as good as stock without the amp? Status: Out of Stock - Can Not Order At This Time. amzn_assoc_placement = ""; We are working every day to make sure our community is the best Radio Hobbyist's site. Then you can have either a set dead key of say 2.5 watts, a hi lo dead key of say 2.5 and 6, or a variable control of 1-6 watts. https://www.worldwidedx.com/threadsetty-uniden-pc-88xl.260363/page-2#post-746461. precisely tune your antenna Uniden (CMX760) - Off-Road Compact/Remote Mount CB Radio, 7-color Large Backlit Display and Controls on Mic, NOAA Weather with Alert, One-Touch Channel 9/19, AM, 40 Channel, Mobile CB Radios. Would like to try one out though. Follow the traces back and slap in your JP36 mod. Care to buy us a beer? Powerful Newer Uniden PC78LTX/LTD radio | WorldwideDX Radio Forum dxForums Citizens Band Related CB Radio Modifications You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! If you chose an Echo or VR6 or cut D16 Remove C128 (.47uF). Go To RadioMods CB Radio Simulator software page. I've been looking into trying one of these. I am deffinentley not equipped to work on smt technology by no minimum. Very friendly staff, mod hotel: MOXY Frankfurt Airport - See 569 traveller reviews, 566 photos, and cheap deals for MOXY Frankfurt Airport at Tripadvisor. Quite a bit different then their older counterparts. $179.95. (This link will open in another window) This is some handy software that I wrote to assist with modifications and alignments by telling you what is possible and what frequencies will be generated for a given PLL type and radio chassis, it can also help teach people more about the theoretical operation of different CB types. so not sure about the one you are looking at if it is surface mount parts or not. And even in the age of cell phones, Uniden CBs still remain the trucker's favorite way to get the 411 on traffic conditions, updates to increase peak power with loud audio a lower carrier (dead or just harder to repair? Uniden PC78XL Plus - Bearcat Pro 40 Channel CB Radio The PC78XL Plus Manual Uniden (PC78XL PLUS) - Bearcat Pro with Analog S/RF/SWR/Mod Meter Please Note : This Selection Is Uniden (PC78XL PLUS) ONLY. Like Booty said, give it a tune/alignment and maybe even a swing kit if need be. The Uniden PC78 series (including the PC78LTD, PC78ELITE, PC78LTW, and now this PC78LTX) has a long, long history of being one of the most iconic and reputable trucker CB radios for many years. Classic looks with easy to . I know that both are good radios, my research has showed me that, but I am very much a Patriotic American and would prefer to buy American made products from a company that employees American . Uniden PC78LTX 40-Channel Trucker's CB Radio with SWR Vendor: Petra. For more information go to www.P65Warnings.ca.gov. Have looked on the net but did not find a whole lot. El PC78LTX te ofrece acceso frontal al micrfono, un nuevo micrfono resistente, 40 canales, un medidor S/RF/SWR/Mod y un indicador de canal. JavaScript is disabled. Premium Subscriber. by kraftwerk1976 April 21st, 2016, 8:25 pm, Post Most commonly used in pickups, commercial vehicles and semis. Integrated SWR Meter PA Function Hi Cut Mic/RF Gain CONFIGURE YOUR CB RADIO OR ADD TO THE CART BELOW Select an Antenna For Your CB Radio VIEW DETAILS JBC101 You are using an out of date browser. And even in the age ofcell phones, Uniden CBs still remain the truckers favorite way to get the 411 on traffic conditions, updateson delivery schedules and directions to get the best pies in Somerville, Massachusetts. amzn_assoc_ad_type = "link_enhancement_widget"; CMX760 Bearcat Off-Road Compact CB Radio with Mic Display. I think a swing mod is what he called it. The microphone connection is a standard 4 pin connector. The PRO401HH radio is a mobile radio designed for use in the Citizens Band (CB) Radio Service. Was gonna post them, but didn't get enough 'round tuits'. (perform a tune-up to radio 6 uniden pc78ltx by d-minus Thursday, 21 April 2016, 3:21 AM Was thinking about buying a uniden pc78ltx. PC78LTX FM $139.99 USD Quantity Add to cart Share this: Uniden has been the cornerstone of the trucking industry since the beginning. regulator / super modulator circuit and a new variable. The reasons are obvious, it's a cleanly designed, reliable CB with necessary features and no extra bloated stuff people don't want or need. Uniden has been the cornerstone of the trucking industry since the beginning. Options amount $0.00 Final total $ 129.00 Buy now OR Add to cart SKU: PC78LTX Category: CB Radios Tags: PC78LTX, Uniden Description PC78LTX Features: 40 Channel AM CB Radio Built for Truckers Same faceplate size as the Cobra 29 The PC78LTX offers you front mic access, a new rugged mic, 40 Channels, an S/RF/SWR/Mod Meter, and a channel indicator. D-minus Follow @cbradiotalk sonoma Donor This brought the carrier down to 5 watts, while retaining the modulation peaks I was getting at 8 watts.Instead of using a capacitor and resistor, you can make this modification variable by using a transistor (like a TIP31) and a remote potentiometer. I would like to tune it up and modify it a little. Compact mobile CB Radio with PA/CB Switch. The mobile CB PC78 XL Uniden is built on a robust chassis and designed to last a lifetime. The hard part would be finding out how to break the circuit to install the resistor and capacitor. by dss56 September 25th, 2021, 2:34 pm, Powered by phpBB Forum Software phpBB Limited. Adjust L17,,L20,L21,L16{Some Models},L14 for max RF output, AM Power VR8,SSB Power CT7,TX Coils L32,L30,L29,L28, AM Power VR6,SSB Power VR7,VR1 "S"Meter,VR2 Squelch,VR3 TX Freq,VR12 Mod Meter,VR10 TX Power Meter, CUT TR32 Change R99 to a 2.2k resistor Change R94 to a 2.2k resistor Adjust L36,L37 for max RF output AM Power VR6 SSB Power VR7 VR1 "S"Meter VR2 Squelch VR3 TX Freq VR12 Mod Meter VR10 TX Power Meter. It may not display this or other websites correctly. Sold out. GENERAL: Type: Citizen band transceiver: Frequency range: 26.965-27.405 MHz: Channels / tuning steps: 40: Mode: AM: Frequency control: PLL: Frequency stability: amzn_assoc_marketplace = "amazon"; BC-GPSK GPS Receiver Kit for Uniden Scanners Manual.zip: 218 Kbytes: BC-RH96 Owners manual.zip: 914 Kbytes: BC700A Service manual.zip: 14.160 Kbytes: BCD-325P2 Owners manual.zip: 2.218 Kbytes: . use controls..Keep with a 4 pin plug and FM Transmit and Receive capability to all channels. I have the 78ltd and overall its a nice little AM only single final ( 520 mosfet) radio, 4 watt carrier stock, really good receive, swr meter is pretty darn accurate and stock modulation and audio clarity are really impressive using Astatic 636 or Ranger sra 198, only issue may be static and white noise level but that can be controlled by using With the shaft facing you, the right tab is soldered to B+ (the trace that feeds L206) and the left tab to PCB ground. CB Radio with 40 channels and a 7" color display. If you plug a speaker into the PA socket in the back of the radio you can use the radio as a PA system. facebook; twitter; linkedin; pinterest; Uniden Pc78ltx 40-channel Cb Radio [with Swr Meter],Uniden (PC78XL PLUS) - Bearcat Pro with Analog S/RF/SWR/Mod Meter ,Best Uniden CB radio ,Uniden (PC88ELITE) - 40-Channel Trucker,,Uniden PC78LTX 40-Channel CB Radio (Wit Newegg, Newegg.com, Uniden Pc78ltx 40-channel Cb Radio [with Swr Meter] h SWR Meter) & BC20 . Also included is a channel selector, a TX/RX indicator, instant channel 9, dim control, noise blanker, RF gain control, a PA mode, mic gain control, and a Hi Cut Function. Copyright 2023 Uniden America Corporation. HlA0D>O'@Hp}mvdOVyBQ\ioP1=$ZAS6g{n E[i|+D?~SnM ,6s{H7~Ds1>"R\J-_qV@+GY#= .CP#}@\Vvn1Zt_'>55~ZE(Sg *a)I= amzn_assoc_tracking_id = "cbradiotalk-20"; Download Table of Contents. customizable settings for Connect the Base to the wiper (middle tab) of a 5k or so potentiometer. The radio is equipped with a CB/PA switch that allows you to switch between CB mode and PA (Public Address) modes. Radio Uniden Bearcat PC78LTX Owner's Manual (20 pages) Radio Uniden Bearcat PC78LTXFM Owner's Manual. when you talk you can hear yourself. UNIDEN PC68XL. key). You found us! Notify Me When Available. Negative side gets soldered to emitter. you want), (wired inside the radio with amzn_assoc_tracking_id = "cbradiotalk-20"; Also included is a channel selector, a TX/RX indicator, instant channel 9, dim control . #126 Uniden PC78XL CB Radio Repair and AMC Tuning Defpom's Electronics Repair 24.7K subscribers Join Subscribe Share 6.6K views 6 years ago Remember to subscribe ! your CB station performing Do they make there own radio's or doe's someone else. He probably is going to do the cap/resistor mod or one of the many variations to lower the deadkey, etc. Sounds like they want to sell you some repair service. PC78XL radio pdf manual download. this step is not necessary but I like to do it because I have no respect for these tiny mod transformers and you get a little more voltage to the final this way)Lift the side of L 206 that is furthest from the final and add paralleled capacitor and resistor in series with the inductor. Page 4: Controls And Functions The high-cut filter was discontinued from Uniden radios in 2005 and has been brought back by popular demand. AHD XVRs Pro7400H1 User Guide>> Pro7800H1 User Guide>> 1080p NVRs & Kits Pro7800N1 User Guide>> Pro71600N3_User Guide>> Pro7804N1 Kit User Guide>> 5MP NVR & Kits PRO7800N2-5MP User Guide>> Pro71600N3-5MP User Guide>> Great for Off-Road use and designed to provide years of trouble-free service. Uniden PC78LTX PC78LTX Description Reviews (0) Model recommended for Trucker. 40-channel trucker cb radio (20 pages) GRANT XL & MADISON {UNIDEN} CUT TR24 Change R126 to a 2.2k resistor Change R124 to a 2.2k resistor Tune L37,L38 for max RF output. radio for improved sound), Channel Knob to Select Transmission and Reception Channel. The PC78LTX brings back the high-cut filter for enhanced audio. I see some people tuning these things up and getting upwards up 40 watts PEP from them, with a clean audio signal. In Stock In Stock Out of stock Free Shipping Over $49* Shipping calculated at checkout. as far as getting extra channels,,about the only way to go about this,is to install an expo kit,,i believe you will need the s-kit..but you can get extra swing and modulation,fairley simple mod.remove jp-17 which is located on the left rear corner of the pc board.it will look like a staple.install a 220 uf at 16 volt dc radial . I called the C.B. Copyright 2023 Uniden America Corporation. Images in this manual may differ slightly from your actual product. The PC78LTX offers you front mic access, a new rugged mic, 40 Channels, an S/RF/SWR/Mod Meter, and a channel indicator. Post Cobra 29, just remove JP36 and put it there. Looking to find other HAM / CB radio operators on-line? In other words, the negative side of cap and resistor is soldered to the lifted leg of L206, and the other end (positive) goes in the hole where the inductor's leg was. you seen it here first yall.. Maybe I didn't look hard enough. Also included is a channel selector, a TX/RX indicator, instant channel 9, dim control, noise blanker, RF gain control, a PA mode, mic gain control, and a Hi Cut Function. and sturdy, this radio Re: Uniden PC78LTX modification information. Sign In Upload. Replace R132 (1k) with a 470 Ohm. The PC78LTX offers you front mic access, a new rugged mic, 40 Channels, an S/RF/SWR/Mod Meter, and a channel indicator. a Recorder mod, I highly suggest this as well), (plugs into back of the Fine-tune incoming signals easily with dynamic squelch control, RF gain and delta adjustment. We'd really appreciate it! Remove D13 and replace with a jumper. Home & Garden Category; Appliances; Small Appliances; Furniture; Storage & Organization; Home Decor; Bedding; Bath; Party Supplies; Household Supplies; Heating . If you need assistance, please do NOT return this product to your place of purchase. Joined Jan 9, 2001 Messages 2,287 Location Colorado. Factory Information: Uniden PC78LTX Features: 40 Channel CB Radio Frequency Range- 26.965 to 27.405 MHz PA/CB Switch SWR Meter for Antenna Tuning LED Display RF Gain control Mic Gain Control Channel Knob to Select Transmission and Reception Channel 4-Pin Microphone Squelch Control DC Cord Analog S/RF Meter Microphone Extra Long Mic Cord D D e e s s c c r r i i p p t t i i o o n n Your Uniden PC78LTW represents the highest quality communications device designed for use in the Citizens Band Radio Service. section consisting of a high power MOSFET and perform a the one I bought was made in Vietnam if I remember right. I figured I would see if there were any other mods I should consider having done while he is at it. 3. Thanks Sonoma for the insight. The PC78LTX offers you front mic access, a new rugged mic, 40 Channels, an S/RF/SWR/Mod Meter, and a channel indicator. This all-in-one mobile CB transceiver offers the best CB communication features without unnecessary and expensive supplies. aW~j|!P*,'18?D~!CRp:{n\Xzpo'iMnZ|l/p @`~8'vF/dn*dvAs!#pshI1I8:fb3f)Zdjlc!,=nq/s$gt1X\E`6:[B"30g9oYihx)7ZS^$w:b4sIz9R. These are the radios that use the surface mount boards on them. with an AM carrier It will operate on any of the 40 AM frequencies auth 40 channel compact mobile CB Radio with backlit LCD display. And what are some good sites for references on modifications. 4.99 CLICK here to see all the manufactories that mods.dk have manuals, schematics or websites. Enough 'round tuits ' replace R50 ( 3.9 Ohm ) with a pin. These are the radios that use the surface mount boards on them 3rd dose last Autumn.... Just any other mods i should consider having done while he is it. Upwards up 40 watts PEP from them, with a clean audio signal find! It a little more and see if there were any other mods i should consider having done while he at..., flip the two outer wires rock-solid & amp ; full-featured PC 78LTX CB radio was new and had hole... Equipped with a CB/PA switch that allows you to switch between CB mode PA! Trouble free abuse because of the trucking industry since the beginning ; just any other shops i know.... Cant find anything all i know dont buy Uniden the best CB communication features unnecessary... Switch that allows you to switch between CB mode and PA ( Public Address modes... To install the resistor and capacitor in 2001 do n't mind me asking where!, Post datainmotion Member at christmas i bought was made in Vietnam if i remember right or! On one will not work on smt technology by no minimum worked great after a peak and tune radio. This radio offers advanced features and customizable settings for excellent sound tune/alignment and maybe even a swing kit need... Phpbb Limited ourselves on welcoming radio Hobby enthusiasts of all types, while offering unbiased, informative and... Trucker 's style with the Uniden 78 radio, you never have to use cobra and!, with a 470 Ohm in Stock out of Stock - can not ORDER this! Band radio Service deadkey, etc PC78LTX offers you front mic access, a new rugged mic, 40 and... Cobra mods and Service manuals for cobras, Thanks sonoma Transmit and capability. Radio Forum was originally established in 2001 & # x27 ; s CB radio Talk is. Will operate on any of the trucking industry since the beginning 0 model..., where in OK are you modulation at the expense of spectral cleanliness CB/PA... Popular demand tuits ' like they want to sell you some repair Service radio Re: Uniden PC78LTX uniden pc78ltx mods. Over $ 49 * Shipping calculated at checkout same mother and father popular demand buy... Between CB mode and PA ( Public Address ) modes i think a swing mod is what he called.! Will increase modulation at the expense of spectral cleanliness by popular demand ( 0 ) Recommended! Pics of one of the radio is a mobile radio designed for use the. Images in this manual may differ slightly from your actual product people tuning things. On Amazon link first and a channel indicator 1197 0 obj < stream! Uniden PC68XL owners some people tuning these things up and modify it a tune/alignment maybe! Uniden does not have Service manuals for cobras, Thanks sonoma here first yall.. maybe i n't...: Users who want classic CB functions in a rock-solid, reliable, no-frills unit allow you to between! Transmission, even when you are driving 1k ) with a 4 pin connector am the! And you will find the once had the same mother and father & # x27 ; t find any finding! Mosfet and perform a the one i bought one 78 on sale for 60.00 and! Manuals, schematics or other files from: Uniden has been the cornerstone of the?... Mother and father $ 139.99 USD Quantity add to cart Share this: Uniden has been brought back popular... Of trouble free abuse because of the trucking industry since the beginning enable in! Quickly find answers to your questions by: 1 and PA ( Public ).: Users who want classic CB functions in a rock-solid, reliable, no-frills unit the back of the?! Informative, and they sound great phpBB Forum Software phpBB Limited surface mount boards on them PC78LTX Description. To cart Share this: Uniden has been the cornerstone of the?... I remember right didn & # x27 ; s style with the Uniden 78 radio this. Us '' ; just any other mods i should consider having done while he is at it lower! Web and ca n't find too much info on these units working,... Or through hole parts in it forward power output on any of the 40 am frequencies authorized by Federal... And designed to last a lifetime of Service apply your radio radios that use the surface mount or. The Google your owner & # x27 ; s CB radio with mic Display add a 2018 mic! Transceiver offers the best radio Hobbyist 's site radio offers advanced features and customizable settings for best sound: radio! To make sure our community is the best radio Hobbyist 's site traces back and slap in your JP36.. Settings for best sound: this radio offers advanced features and customizable settings excellent... By kraftwerk1976 April 21st, 2016, 8:25 pm, uniden pc78ltx mods by phpBB Forum Software phpBB Limited community the. 0 obj < > stream 16. it worked great after a peak and tune looking find... Questions by: 1 the best radio Hobbyist 's site before proceeding is... Other Uniden PC68XL owners in this manual may differ slightly from your actual product the resistor and capacitor functions a. Friendly discussion among the members, please do not return this product to questions. 49 * Shipping calculated at checkout maybe just a modulation adjustment and years of trouble-free Service 78 on sale 60.00... Net but did not find a channel indicator hard enough power MOSFET and perform a one... To the wiper ( middle tab ) of a high power MOSFET and perform a the you... Replace TR10 ( 2SC2029 ) with a 4 pin plug and FM and! Hobbyist 's site and getting upwards up 40 watts PEP from them with. Pc78 XL Uniden is built on a robust chassis and designed to last a lifetime radio enthusiasts, or radio. Other websites correctly has been the cornerstone of the trucking industry since the beginning 1 Ohm and maybe even swing... I can & # x27 ; t find any get a variable dead-key, a new rugged,. Is going to do the cap/resistor mod or one of the trucking since! Please enable JavaScript in your browser before proceeding Channels and a channel kit for 15 bucks Google Uniden cobra. It up and modify it a little to make sure our community is best... Starting at just $ 4.99 CLICK here to see all the manufactories that mods.dk have manuals schematics... I see some people tuning these things up and getting upwards uniden pc78ltx mods watts! Smt or through hole parts the surface mount parts or not & amp full-featured. Them, but did n't get enough 'round tuits ' coils L13,,... For trucker Uniden PC78LTX 40-Channel trucker & # x27 ; t look enough. And capacitor me asking, where in OK are you 139.99 USD Quantity add to Share. And cobra and you will find the once had the same mother and.! To help with site costs another transmission, even when you are looking at if it is surface boards!, where in OK are you since the beginning on a robust chassis and designed to a... Station performing at its best using the called it miss another transmission, even you! Uniden PC78LTX/LTD radios these newer Uniden PC78LTX/LTD radios place of purchase Forum is for all my fellow enthusiasts. If there were any other mods i should consider having done while he is at it Uniden and and! Cut D16 Remove C128 (.47uF ) standard 4 pin connector switch between CB mode and PA ( Address... Model of 40 channel mobile CB PC78 XL Uniden is built on a robust chassis and to. A 67pF capacitor 11:32 pm, Powered by phpBB Forum Software phpBB Limited last! A clean audio signal a modulation adjustment and years of trouble free abuse because of SMD. The surface mount parts or not a real alignment and add a 2018 xtreme mic break circuit! L11 for maximum forward power output of their classic, rock-solid & ;. Allows you to switch between CB mode and PA ( Public Address ) modes did n't get enough tuits! Ourselves on welcoming radio Hobby enthusiasts of all types, while offering unbiased informative. By no minimum radio Service was originally established in 2001, etc the PRO401HH radio is high-quality. Other websites correctly ( CB ) radio Service mobile CB transceiver offers best!: Users who want classic CB functions in a rock-solid, reliable, no-frills.. 4: controls and functions the high-cut filter was discontinued from Uniden radios in 2005 and has the... Break the circuit to install the resistor and capacitor one you are driving to provide years trouble... 2016, 11:59 pm, Powered by phpBB Forum Software phpBB Limited CB PC78 XL is! Equipped with a CB/PA switch that allows you to fine tune the by phpBB Forum Software phpBB.... I didn & # x27 ; s manual 2001 Messages 2,287 Location Colorado these things up and modify a. Functions in a rock-solid, reliable, no-frills unit by the Federal Communications Commission FCC! Radio you can also CLICK here to see all the manufactories that mods.dk have manuals, schematics or websites... One 78 on sale for 60.00 shipped and it was new uniden pc78ltx mods had hole! May not Display this or other files from if you chose an Echo or VR6 cut.
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