Uniden pc78ltd mods. UNIDEN PC78XL MODS If you need assistance with a radio modification or have any questions, this forum is the perfect place to ask. I have a new Uniden pc78ltd anniversary radio that is smt, I can't find anywhere on how to lower the dead key and turn up the modulation on this radio? does it have adjustment pots to do a simple tune up, it came out of the factory dead keying 5 watts swings to 12 watts, I need to get the dead I don't want to screw the radio up, and was just wondering what good (and for that matter bad) mods everyone else has done to there 29's and 78's. There are many and varied circuits and methods relying on different PLL and other (Integrated Circuit) IC’s with a few base frequency set xtals to select all those channels you want. I also Tried it with 300uf and 200uf, if anything seems cleaner with only the tiny 100uf cap. Many are by poboy309 » March 12th, 2008, 8:22 pm Is this just 1 watt dead key or 1 watt when you talk into the mic? Also what kind of meter are you using? Does it read RMS or PEP? Uniden Grant LT barefoot mobile with a 102" whip. View online or download Uniden Bearcat PC78LTD Owner's Manual Hit the road in trucker's style with the Uniden PC78LTX CB Radio. Quite a bit different then their older counterparts. CB mic wiring can be frustrating enough, but this guide will help! Copper Talk: Uniden pc68xl & pc78xl mods Yes, I will say it again, most mods are a method of separating an operator from his hard earned cash. uniden pc78ltw by MUDSLINGERJR » Wednesday 14th Jul 2010, 17:13 Any body any thoughts on mods for this rig same as cobra 29? thanks cuthere4 Newbie Posts: 4 Joined: Thursday 18th Jun 2009, 14:57 First Name: allen Location: saginaw, mi Copper Talk » Ask The Tech » Modifications « Previous Next » Thread Last Poster Posts Pages Last Post CRT SS-7900V TURBO Charliebrown 1 1 12-06-23 10:04 pm Uniden PC 66 XL Mods Scarecrow 7 1 2-02-23 11:04 pm Hit the road in trucker's style with the Uniden PC78LTX CB Radio. The PC PC78LTD also offers a TX/RX indicator, SWR calibration, S/RF/SWR/Mod with a meter and antenna warning, and a Hi Cut Function. Turn the VOLUME knob counter-clockwise to turn the unit off. More Uniden CB Transceivers Uniden CB Mobile Transceivers: Uniden Grant LT service manual and specs Uniden PC-68LTW (PC 68 LTW PC68LTW) service manual and specs Uniden PC-78LTW (PC 78 LTW PC78LTW) service manual and specs Uniden PC-404 (PC 404 PC404) service manual and specs Uniden Pro-510XL (Pro 510 XL Pro510XL) service manual and specs Any more tune up/mod info floating around on these radios? This thread is the only thing I've found online as well as a YT vid with a cap and resistor mod done on the 68 LTX radio. just to name a few. . Copper Talk: Uniden pc68xl & pc78xl mods Uniden PC78LTD | Owners Manual - Page 10 PC78LTD TURN PC78LTD ON/OFF Turn the VOLUME knob clockwise until the unit turns on and the display backlight turns on. President Lincoln "base" in the garage with a home made horizontal dipole. 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. These are the radios that use the surface mount boards on them. Uniden P-1000 (P 1000 P1000) Programming interface schematics for Uniden: Programming software for Uniden P-1000 (P 1000 P1000) : PDF User Manual for Uniden P-1000 (P 1000 P1000) : PDF Service Manual with schematics for Uniden P-1000 (P 1000 P1000) : Mods for Uniden P-1000 (P 1000 P1000) : Your Uniden PC78LTD is a high-quality communications device designed for use in the Citizens Band Radio Service. Keep your CB station performing at its best using the CB's built-in SWR meter to precisely tune your antenna for best signal. txt), PDF File (. Both of my current radios have the Schottky diode mod and have been worked over, and it definitely lowers the white noise floor, allowing weak stations to get through the static in the receive. Keep facebook; twitter; linkedin; pinterest; Uniden "Custom/Modified" examples include LesComm Enhancements, Basic Clarifier mod, Amp Switch, Hi Cut Filter, etc. Anyone know where I can get the service manual? From searching, I would say that this is similar to one of the Cobra 29 models. Jun 17, 2014 · I've searched this forum, and the web and can't find too much info on these newer Uniden PC78LTX/LTD radios. Uniden - A world without wires. Feb 12, 2026 · More Uniden CB Transceivers Uniden CB Mobile Transceivers: Uniden Grant LT service manual and specs Uniden PC-68LTW (PC 68 LTW PC68LTW) service manual and specs Uniden PC-78LTW (PC 78 LTW PC78LTW) service manual and specs Uniden PC-404 (PC 404 PC404) service manual and specs Uniden Pro-510XL (Pro 510 XL Pro510XL) service manual and specs 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. However if you add a lot of these small upgrades it could move your order to the "Major Custom" category. careful there is a solder through the board to pickup a surface mount diode on the other side from the trace you need to break its the same mod as a 29 and what not from cb tricks, there just aint a jumper to make it easy any more yes it used to A Schottky diode mod can quiet most receivers down and most radios can have their receiver adjusted for more sensitivity. The radio is the same as the new Cobra 29 LTD. This is the manual page for Uniden. I see some people showing a project on my cb radio how to make it perform better!#2025 #automobile #farmequipment #diy #2025shorts Feb 4, 2021 · Hi bburdette, You must have a newer 78. So here it is I guess. Here you will find instruction manuals, service manuals, user guides schematic, brochures etc. Many are This is the manual page for Uniden. It will operate on any of the 40 AM frequencies authorized by the Federal Communications Commission (FCC). Uniden PC78LTXFM Professional 40-Channel CB Radio with Dual-Mode AM/FM, Integrated SWR Meter, PA/CB Function, Hi Cut, RF/Mic Gain Control, and Instant Channel 9 Copper Talk » Ask The Tech » Modifications « Previous Next » Thread Last Poster Posts Pages Last Post CRT SS-7900V TURBO Charliebrown 1 1 12-06-23 10:04 pm Uniden PC 66 XL Mods Scarecrow 7 1 2-02-23 11:04 pm Uniden PC78LTXFM dual-mode CB radio features AM/FM support, SWR tuning, RF gain control, noise limiter and built-in PA for rugged reliability. 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. pdf) or read online for free. Feel free to pop in and join the discussion! by poboy309 » March 12th, 2008, 8:22 pm Is this just 1 watt dead key or 1 watt when you talk into the mic? Also what kind of meter are you using? Does it read RMS or PEP? Uniden Grant LT barefoot mobile with a 102" whip. More Uniden CB Transceivers Uniden CB Mobile Transceivers: Uniden Grant LT service manual and specs Uniden PC-68LTW (PC 68 LTW PC68LTW) service manual and specs Uniden PC-78LTW (PC 78 LTW PC78LTW) service manual and specs Uniden PC-404 (PC 404 PC404) service manual and specs Uniden Pro-510XL (Pro 510 XL Pro510XL) service manual and specs This resource lists various CB microphone wiring information for different brands. Powerful and sturdy, this radio offers advanced features and customizable settings for excellent sound. Classic looks with easy to use controls. google uniden and cobra and you will find the once had the same mother and father . More Uniden CB Transceivers Uniden CB Mobile Transceivers: Uniden Grant LT service manual and specs Uniden PC-68LTW (PC 68 LTW PC68LTW) service manual and specs Uniden PC-78LTW (PC 78 LTW PC78LTW) service manual and specs Uniden PC-404 (PC 404 PC404) service manual and specs Uniden Pro-510XL (Pro 510 XL Pro510XL) service manual and specs CB Radio PLL List The PLL or Phase Locked Loop, is the technology that transformed radio transceiver construction from relying on banks of crystals being mixed to generate the operating frequencies. I have acquired a Non-working Uniden PC78ltw. I'm looking for tune up/mod info on these units. Whatever mods can be made on the Cobra 29 LTD can be done on the Uniden PC78LTX. Features and Specifications: Explore Uniden Pro-510XL CB transceiver modifications, reviews, software manuals, and diagrams for enhanced performance and functionality. Anyone know which one? Thanks for any info. As for channels on a Uniden you would need to use an Expo "A" kit. Powerful and tough, this radio offers advanced features and customizable settings for excellent sound. he guys bit of a video of how to tune a Uniden CB radio hope you enjoy!(: gimme a like for more ! Uniden Bearcat PC78LTD Pdf User Manuals. Rich This is the manual page for Uniden. The PC78LTD marks the return of the High-Cut Function which, when turned on, cuts high audio frequencies. Uniden PC78LTX CB radio includes 40-channel AM operation, SWR antenna tuning, RF gain and noise limiter—compact and dependable for everyday use. CB Radio PLL List The PLL or Phase Locked Loop, is the technology that transformed radio transceiver construction from relying on banks of crystals being mixed to generate the operating frequencies. Mods for the Uniden PC78 LTX CB radios. Hit the road in trucker's style with the Uniden PC78LTX CB Radio. Uniden Grant LT CB Transceiver Mods Reviews Software Manuals and Diagrams - Free download as Text File (. Your Uniden PC78LTW represents the highest quality communications device designed for use in the Citizens Band Radio Service. use controls. ovph8, 7r4lzq, fwp0bv, vcawmn, pua8kc, zghj21, ltby0c, e1tvgb, gzkf, puojq,