Cobra 19 Dx Iv Mods. Adjust the volume control for 2v output on distortion meter read. Don't listen to the idiot who said to get a cobra 25.
Cobra 19 DX IV Recreational CB Radio from www.cobra.com
Dimensions (w) 11,4cm x (h) 4,2cm x (d). When i modded the 19 ultra iii (19 dx iv without rf gain), i cut the mod limiter, tuned the output coils, and with a 13.8v supply i was able to do 7 watts swinging almost 9 watts into the dummyload. Cobra 19 dx iv eu specifications.
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Final is that big transistor in the back of the radio bolted to the chassis on the channel selector side. Also, the 19 has the same receive board as the 25, so it will receive the same as the 25. The 19 dxiv has squelch and rf gain.
Dimensions (W) 11,4Cm X (H) 4,2Cm X (D).
About press copyright contact us creators advertise developers terms privacy policy & safety how youtube works test new features. You'll have to solder a jumper across the diode going from the audio transformer to the driver and final. L206 and l207 are the two adjustable coils between the final and the so239 on the back of the radio.
Solder A Jumper Across The Resister Going From The Base Of The Final To The Driver.
So i called out to the pilot travel center by the interstate and they had the 19 dxiv for $49.99. I got a couple extra watts out of a friends 19. Neither the 19 nor the 25 have ssb so you don't have to worry about that.
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The Ultra Should Be Similar.
Locate rv2 pot and turn to substantially increase both modulation and tx power swing. Uut set to fm mode ch22, output of rf signal generator connect to tp5 (antenna). You can also bump up the modulation level a bit via a pot on the circuit board.
