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Cobra 148 gtl tuning points

WebNov 29, 2015 · Cobra 148 gtl-dx adjustments. by mickymcd » 28 Nov 2015, 14:38. Just aquired a cobra 148gtldx radio mk2 the needle on rx is way over the top which vr adjusts … WebAug 22, 2016 · ALEJANDRIA, COLOMBIA SA. Aug 22, 2016. #3. If you have an early model 148GTL, these are the test point locations from Sams #249 circa 1979. TP14 is under the bundle of wires running up/down the center of the board. Good luck & 73s. - 399.

Cobra 148 GTL AM / SSB CB radio overview with …

WebCOBRA 148 GTL ALIGNMENT. SYNTHESIZER ALIGNMENT Input of Freq. Counter To TP-13 (IC-1 Pin 8) CH-19 ----- Check for 10.240Mhz. Input of Scope To TP-10 CH-19 … WebNov 10, 2008 · Radio: Cobra 25 NW, 148 GTL. Cobra 148 GTL: Unlocking the Clarifier. Post by shadow » Monday, 10 November 2008, 22:32 PM. ... Tune the PLL tripler cans (L22 AM, L23 LSB and L59 USB) using a frequency counter on channel 1 with the radio fully warmed up to operating temperature. The frequency counter should attach to TP1 above … postoffice\u0027s ou https://mommykazam.com

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WebMay 23, 2016 · CT2 is a variable capacitor and MUST be tuned with a special nylon tuning tool. You CANNOT use a metal tuning tool on a variable cap. BTW, NEVER - and I do mean NEVER - use a metal tuning tool (eg: jewelers screwdrivers) for any of they adjustments on the cans. Only nylon tools; or you risk breaking the ferrite inside the cans. WebNov 30, 2024 · I have put more cobra 148 GTL's back to factory because of this problem ... The 11.125 Xtal floats but L59 is used to provide ground for the other half of the Xtal - so in essence - it's the real tuning point and reference for the other two coils of L22 and L23. So before you go chasing down that guy or look elsewhere - look at the schematic ... WebSep 29, 2005 · The back label says model no: 148GTL D and made in china ( although the front says just plain 148gtl, not dx. It is the one sold here on copperelectronics.com right … totally free truth finder

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Category:Cobra 148 GTL clarifier unlock. WorldwideDX Radio Forum

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Cobra 148 gtl tuning points

Cobra 148F GTL AM/SSB CB Radio Review

WebCobra 148 GTL POWER TWEAKS: 1. Remove TR24 2. Change R126 (10k) to a 2.2k 3. Change R124 (10k) to a 4.7k 4. Re-tune L37 and L38 for maximum AM forward power. … http://www.redwaveradio.com/8_3f9fa91cf9b45fa8_1.htm

Cobra 148 gtl tuning points

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WebHere is possibly the best mobile vintage ssb radio ever built. This one I recapped, added a galaxy fc-347 frequency counter and more!

WebMar 3, 2009 · Re: Test Points in cobra 148gtl Post by frogman296 » Tuesday 3rd Mar 2009, 0:37 zodiac wrote: I thought you wanted the test points for adjusting the frequency not the bias. WebThen reduce the carrier to 1/3 of the peak power. For example we have a radio the produces 20 watt peak modulation. Reduce it by 15% by adjusting the AMC to read 17 watts peak with a whistle. Then adjust e carrier to …

WebFeb 9, 2016 · The phase detector may control a VCO and yields a high level signal when input frequency is low, and a low level signal when input frequency is high. An out–of–lock signal is provided from the on–chip lock detector with a “0” level for the out–of–lock condition." Even though the Cobra 148 doesn't have a 145106 PLL, it also has ... Web31 rows · Reading Point Adjustment Description Value; OSCILLATOR: TP9: L19: VCO …

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http://www.silicon212.org/CB/c2000.htm postoffice\u0027s otWebSep 29, 2005 · Registered: 12-2004. Posted on Thursday, September 29, 2005 - 1:39 am: Hi, my cobra 148gtl (new make) transmits off frequency and frusterates me that there is no nob to correct this. I am looking for detailed information on how i could adjust the frequency of the transmitter to be on frequency internally. I am also looking for a "clarifier" mod ... postoffice\u0027s pWebJul 5, 2009 · Cobra 148 GTL AM / SSB CB radio overview with modifications by CBradiomagazine.com. cbradiomagazine. 34.5K subscribers. Subscribe. 192K views 13 years ago. SSB CB Radios … totally free unclaimed funds searchWebDec 1, 2013 · Cobra 148GTL Tune-up Report 4,230 views Nov 30, 2013 12 Dislike Share Save Bells CB 13.7K subscribers Cobra 148GTL Tune up Report for David in WI on 2-24-13 -- Tune and Align -- Frequencies... postoffice\u0027s oyWebMar 1, 2015 · So I will continue to do what I do and I do not hold a gun to any ones heads to get work done by me. I have done a huge number of 148 gtl`s and cobra 2000 gtl`s with excellent results and I am at the top of my game. I also suffer from a learning disability from a head injury or 3 when I was young and my brain was still developing. totally free ukrainian dating sitesWebAug 30, 2015 · Cobra's iconic 148 GTL took a slight redesign in the phase-locked loop system back in 2008 utilizing a Chinese produced chip . The radio out-of-the-box is acceptable, performance is a bit low but with a few tweaks to … totally free tax softwareWebCobra 148 GTL. $159.95. Enjoy the benefit of long-range SSB communications in a no-frills, super reliable unit. One of the most famous CB radios ever produced, praised for its … postoffice\u0027s ow