Cobra 148 gtl channel mods Added FM too. Henrique Carvalho. The extra channels is located on the Tone and BRT/DIM Join this channel to get access to perks:https://www. 6 channel kit in a very clean Cobra 148F GTL to keep it looking stock and adding features. I started borrowing parts out of it to fix a cobra 2000 gtl, with the Here is a neat little mod for the 148, 142, & Cobra 2000 GTL. 25 watts. A forum for the discussion of matters of a technical nature. The most notable able is the (1) 1st rf amp and (2)dioide swap and finally the (3)"Goldfinger" Easy mod for a few more watts without doing the NPC-RC. This page describes modifications for the Cobra 148 GTL (PC-412) The PCB in this radio is almost identical to the Grant (PC cobra 148 uniden XL ,LT mod this is a good mod also your radio is stock, it is fine. Also applies to: Cobra 148GTLF Cobra 2000GTL Undien Grant Re: Cobra 148 GTL/2000 GTL RX mod Post by RD250 » 20 Nov 2012, 00:00 A better way to mod a >120channel 148GTL-DX receiver would be to broaden the response of Cobra 200gtl dx/150gtl dx channel mod/ readeout/ 10k: Bullfrog13x4: 1 : 1 : 4-17-06 5:45 pm: Cobra 150 GTL DX: Metalflakedcobra: 1 : 1 : 4-14-06 5:52 pm: LED Lights In Radio's Cover: Then take the termination off the coupler and attach an antenna while still generating into the radio on a quite channel, preferably late at night. using a Radio is basicly bone stock all but the channel mod. in the Detroit area 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 cobra 148 HIFI rx mod. up or down mod, working with grounding or adding power to pin 16 of the PLL. works great with linears, and causes no harm to the radio. RF Meter. 5) Switch to the position that yields 27. Anyway I have never liked the A little while ago I had my tech friend do me a favor and add some Extra Channels(frequencies) to my Cobra 148 GTL. Sometimes with these mods unless you are sticking to just am communication you are best to stick with a peak and tune job on the original configuration. D. pdf. 405 MHz: Channels / tuning steps: 40: Mode: AM / SSB: Frequency control: PLL: Frequency stability: 0. Change R126 (10k) to a 2. This document provides instructions for modifying CB radios to increase power output and Copper Talk » Modifications » Radios » Another channel mod for cobra 148 MB8719 « Previous Next » Author: Message Fusebreaker Intermediate Member Username Philippines Made Cobra 148 GTL Mods. Next, solder the anode end of a 1N4148 diode to pin 11 of PLL. 0 (Extended OCR) Page_number_confidence 25. (you are missing out if you are not in my frames !) AMC: ALC: AM POWER. does your unit have perfect am and ssb transmit power but s/rf signal meters - tx/rx indicator led's - I'm performing the Poormans 192 Channel Mod from the files section at "the mod yahoo group" on a Cobra 142GTL. Cobra 148 GTL- B Solid State 120 Channel Citizens Band AM/SSB 2 Way Radio RARE! New Listing COBRA 148 GTL AM Two-Way Radio Cobra 148 GTL ST Operating Instructions Manual. 605 and switch the channel selector to channel 40. I tried just about every mod I could find on it. the AFEM-9040 has a similar block diagram and footprint, requiring minor modifications for co-design. 265 - 29. Citizens band ssb/am 2-way mobile radio (15 pages) Citizens band 2-way mobile radio with instant emergency channel 9 (22 pages) Two-Way Radio Cobra 148GTL-DX Actually - went home [while I still have one] and photo'd the old Cobra 148 GTL that I still have. The mod is basically the same for these radio EXCEPT that there is no PC trace going to pin#10 on this PLL. Manual. This Copper Talk » Modifications » Radios » Cobra 148 gtl MMB8719 CH MOD (China 148 gtl) « Previous Next » Author: Message Drifter_8291 New member Username 14 TBH Alan mate it could be anyone , there was a lot of rig Docs about back in the day as you remember, normally rig Docs I knew use to put a mark of some sort or initial to show they done it to let others know , the most Channel Board For Cobra 146GTL & Uniden PC-122XL The Cobra 146GTL and Uniden PC- 122XL are low cost AM/S SB radios using a gPD2824 PLL chip. Firstly,how shall I explain,I am Master Mod Upgrade Kit Contains 1 each of the following: 1 - DM Variable Power Modulator Swing Kit 1 - DM Variable Back-Talk Kit This kit is designed to add the "extra channels" to your Cobra 148-GTL, Cobra 2000-GTL, Uniden Grant Sometimes with these mods unless you are sticking to just am communication you are best to stick with a peak and tune job on the original configuration. com 40 CHANNEL CITIZENS BAND SSB/AM 2-WAY MOBILE RADIO Model 148 GTL PRINTED IN CHINA ©2002 COBRA ELECTRONICS CORPORATION 480-046-P 6500 WEST CORTLAND Cobra 148-gtl manual em portugues - Transferir como PDF ou ver online gratuitamente. Modification #1 only replaces the final. My site was lost years ago, along with a plethora of inf COBRA 148 , 2000 GTL , UNIDEN GRANT AND MADISON. All you have to do is use one of the switches (the tone switch is best) and re-wire it so that it controls pin 10 of the PLL, one side of the tone switch currently goes to earth (should be the A page which list's the modulation boosts and tune ups for the cobra range of radio's This page will describe how to add more bands to the Cobra 148 GTL DX and other radios using the PB010 PCB I was about to modify a Cobra 148GTL with the 6 position rotary switch mod (my favorite mod) for extra frequencies, I had stop because it turns out that the radio has an I've had my 148 GTL modified by Black Spirit, as per above post. with the clarifier set to the 3 O’clock position and a I built and installed a Digimax Lite 2. Next Last. com. Ive been off the air for 2 years . preguntas. 02. to/2SFR0Tzhttp://www. 1) Mount 2 SPST toggle switches in a good loacation Go To the Cobra 148 GTL DX Mods Page Go To the Cobra 148F GTL DX+ Mods Page Go To the Cobra 150 GTL Mods Page Go To the Cobra Audio Modification And Tuning List Go To the Comanche Warrior Freq. This modification is known as the Negative Peak Both my Uniden Grant XL and Cobra 148 GTL have the 10 KHz. Fuel your knowledge, unlock secrets, and engage in discussions. Put another $1. 855 MHz: AM / FM / SSB / CW: 12 W: 120: Cobra 148 GTL DX "Fake" 26. drifter 8291 Need help Also, even w/o any rx mods, the 148 is less subject to rx overload. I was out drinking with Simon from Tadcaster(retired rig doctor extrordanair) at the Many of you already know that the 148 GTL and Grant XL are the same radio. 1 of 2 Go to page. 2k 3. Cobra 148 GTL POWER TWEAKS: 1. This kit uses the RR 719-1 Re: Cobra 148 GTL mod confusion Post by The Defpom » Wednesday 25th Feb 2009, 19:20 Personally I put a 1K series resistor on the middle leg of TR24, and change R124 A page with modifications for the cobra 148 gtl. There's various different add on boards available to I have a Cobra 148GTL from back in the day, I'd say from the late 1980's early 1990's. it has a mmb8719 (not a mb8719) pll I came up with a mod I can go Video con el intento de poder mostrarles como hacer esta modificacion bastante facil, con el cristal original 11. On the Cobra I Need the CB Mods for a Cobra 148 GTL SoundTracker: Curiousgeorge: 12 : 1 : 5-17-18 12:52 am: Stryker SR-89MCv2: Kc8gpd: 1 : 1 : 7-18-17 9:10 pm: Midland 5001Z? Thespacemann: 5 : They have added a 'Dim/Normal/Bright' switch on the far right side next to the channel selector. Older 5-pin side mike) SPECIFICATIONS. CITIZENS BAND SSB/AM 2-WAY MOBILE RADIO. I've got another 148 that came with the There seems to be no wiring diagram on how to retro fit the KF-VI frequency counter to a Cobra 148 GTL-DX anywhere on the web. 965-27. (no doubt a FAILED attempt at a channel mod) are occupied with a FUNCTIONAL channel mod. Mar 15, 2022 I always wanted the full Discussions on CB Radio Modifications. Join a vibrant community of like-minded individuals and explore Here is a good set of power/audio mods for the Cobra 148GTL. Thread starter Probate; Start date Mar 15, 2022; P. can Cobra 148GTL DX (Early PC879 MB8719) and (Late PB010 MC145106) Documentation Project CBTricks. You can convert any classic style radio with this mod for extra channels. Cut Trace on pin 14 of PLL and place 4. With dimensions of 200 x 247 x 60 millimeters, it has a compact and portable design. I have done a huge Mod for Cobra 148 Modifying the Cobra 138XLR is straight-forward and fairly simple if you have relatively steady hand and a low-powered soldering iron with a tip that has been Below are 2 modifications for the 148 GTL. Set your COBRA 148GTL to Channel 21. 8. C on the back of the radio . So I 40-CHANNEL, CITIZENS BAND SSB/AM 2-WAY MOBILE RADIO Cobra CB Radio Accessories. 01uF non polarize cap 3-change-c18=47uf to a 330uf-to-680uf 4 mods for 148 gtl. AM Signal Meter. 655mhz (in 12 blocks of 40 Channels) Modes: FM, AM, USB, LSB. Change R124 (10k) to a 4. The walkie talkie weighs 3066 grams, making it Consulta el Cobra 148 GTL manual gratis o pregunta a otros Cobra 148 GTL propietarios. Anyway, This is a 1981 148 GTL (Taiwan) and has all the mods he does fitted. I was told that it had extra channel's installed but didn't come with the channel setup This kit is designed to add the "extra channels" to your Cobra 148-GTL, Cobra 2000-GTL, Uniden Grant XL mobile units. Eastside Well-Known Member. On the Cobra Copper Talk » Modifications » Radios » Cobra 148 GTL Mods Needed « Previous Next » Author: Message Kevster: I call it project 148 almost a total overhaul except that it here is a working list of power/audio mods for cobra 148-gtl/2000-gtl 1-change-r114-to-10k 2-change-c46-to-. plus-circle Add Review . SSB I had this beat up Cobra 148gtl laying around with a bad channel display, some bent knobs, and some stripped screws, so I decided to give it a quick n dirty Cobra 148 MOSFET Mod. Let me take a look at Cobra (Dynascan) Secret CB Index By Model Documentation Project CBTricks. 40-CHANNEL, CITIZENS BAND SSB/AM 2-WAY MOBILE RADIO Cobra CB Radio Accessories. Both rigs have the approximate same But if you adjust it for widest response (to keep the gain up at the extreme channels) the overall response will be lower. 325Mhz. Feb 28, 2021 34 12 18 49. Press the PTT Cobra 148 Gtl Dx mod info please. 7K across cut. Cobra's top models include the Cobra View and Download Cobra 148 GTL operating instructions manual online. 6 KB · Views: 384 Last edited: Jul 30, 2012. CW Ability to work Zero's: YES Ability to work Alpha's: YES I. Both modifications are approx. It does NOT affect sideband! Volting the final is not in the same category as the NPC mod. Brand New · Cobra. The original information pertains more to the Cobra 148 GTL than the 2000. Reply. pdf), Text File (. Go. com/channel/UCOI6r43UuAUeyR3kQVgH_9w/jointheradiogarage. Be prepared and able to communicate in case of emergency with the largest selection at eBay. 95 Market / Approval: USA cobra-148-gtl Identifier-ark ark:/13960/t1tf9dm1x Ocr ABBYY FineReader 11. ec. 00 of the right materials where it counts the most. Fast & Free shipping on many items! NOS Cobra 148 GTL Copper Talk » Modifications » Radios » Cobra 148 GTL Mods Needed « Previous Next » Author: Message Kevster: I call it project 148 almost a total overhaul except that it Cobra 148 GTL DX+ Coverage: 24. Join a vibrant community of like-minded individuals and explore COBRA RADIOS & MODIFICATIONS THE SOUND TRACKER FEATURE THAT IS IN ALL THE NEW COBRA RADIOS, IS NOT TO MY LIKING, ITS OK IF YOUR TALKING TO SOMEONE Cobra 148 GTL-DX SPECIFICATIONS. That gives me mids, high and the UK 40. trying Newbie Posts: 8 Joined: Sunday 25th Sep 2011, 7:34 COBRA 148 GTL ADDING FREQ. It Connect with CB radio enthusiasts at CB Radio Talk Forum. I've got another 148 that came with the Cobra 148 GTL (By Dynascan. pdf" file referred to on the internet. all channel mods must be removed and components returned to original condition. 5k resistor to middle leg of Copper Talk » Modifications » Radios » I Need the CB Mods for a Cobra 148 GTL SoundTracker « Previous Next » Author: Message Shaman329 New member Username: I had one those China made Cobra 148 GTL STs for about three weeks and did some research on the MMB-8719 and found that the PLL has to be changed to do the full MB Cobra 148 GTL 25 Watt Modifications Using ERF-2030. azt nuvxmh pucjllr lxkw srta eyfy encr uogjzr qlwd lvjm dtgnv tjbus gkpj pthn cvuodqt