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My new Cobra 29

Moleculo

Ham Radio Nerd
Apr 14, 2002
9,202
1,686
283
I recently did a trade with bcrewcaptain for a Cobra 29 LTD WX Classic. Last Saturday I took the radio over to Frank at F.G. Best to have him do their 45-50 watt mod and some other stuff.



The radio I got was pretty much stock. Really the only thing done to it was that the little choke by the antenna output that's used by the weather receiver had been cut out. No big deal...Frank just made a new one and fixed it.



Here's the run down on what I had him do:

-45-50 watt mod

-He did a "switchable carrier" mod using the channel 9/normal switch. When the radio is on the Chan. 9 setting, it keys at 2 watts, when it's on Normal, it keys 6 watts.

-Turbo echo board with talkback: Put the echo volume and delay control on the SWR CAL knobs

-Switchable talkback using CB/PA switch: On PA there's no talkback, on CB talkback is enabled.

-Full alignment



On Frank's Bird 43P, the radio in his shop showed 47 watts peak. I took the radio home, plugged it into a power supply running exactly 14.00 volts and an oil can dummy load. On my Bird 43P, it showed 45 watts peak and 20 avg. Unless Bird built more than one set of defective 43P meters and 50H slugs, I'd say that the radio performs as advertised. Sounds loud as hell, too <img src=http://www.ezboard.com/intl/aenglish/images/emoticons/pimp.gif ALT=":hat">



Moleculo


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I need to make a correction on this. I realized that I made a bonehead mistake while reading power output (or had one too many beers). The radio does do 45 watts peak on my Bird 43P. But I thought 20 watts AVG sounded a little strange on a Bird 43, so I went back and looked again, and realized I was looking at the wrong scale. DOH! It's 10 watts AVG on the Bird 43 from a 2 watt key. Anyway, the peak reading is the important one, and at least I got THAT right. Sorry for the mix-up.



BTW, I've been using the radio on the air, and the locals just really hate me....



<img src=http://home.comcast.net/~shockwav/food_221.gif ALT=":dcnchli">


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