| Author |
Message |
    
Captian_radio
Intermediate Member
Username: Captian_radio
Post Number: 202
Registered: 9-2004
| | Posted on Wednesday, May 23, 2007 - 11:57 am: | 
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I found a mod for the Cobra 25 and it goes like this , Remove jumper JP6 and install a 220uf 16 to 25 vdc cap in its place , also add a 100 ohm resistor across the cap . Now I know that this mod is suppose to increase your TX audio , but how is this accomplished with this mod? What is taking place electrically?
Tnx BOB CEF451/VE1CZ
Robert L. Spicer
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Einstein
New member
Username: Einstein
Post Number: 1
Registered: 6-2007
| | Posted on Wednesday, June 13, 2007 - 9:07 am: |
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It's called superswing mod-it lowers your dead key so that your meter and other cber's meters move around more. It allows you to utilize the wasted power from the higher carrier to use for mod. |
Salty_bones
Junior Member
Username: Salty_bones
Post Number: 40
Registered: 5-2005
| | Posted on Saturday, October 17, 2009 - 4:31 am: |
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Can you just remove jumper JP6 and install a 100 ohm resistor without using a 220uf cap to lower your dead key? I would like to lower my key without lowering my full wattage. Thanks... |
Stepchild
Intermediate Member
Username: Stepchild
Post Number: 211
Registered: 11-2002
| | Posted on Saturday, October 24, 2009 - 12:53 am: |
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I don't believe you can. I know the resistor is what effects the dead key. Most time when you lower the dead key you'll lower the modulation also and this mod will allow you to still have the same(or close to it) peak modulation but with a lower dead key and giving you that big loud audio.I wouldn't advise this mod if your not running an amp or you don't talk long distances.
Stepchild
CEF-187
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Dynamiteman
Junior Member
Username: Dynamiteman
Post Number: 11
Registered: 2-2009
| | Posted on Monday, February 22, 2010 - 10:04 pm: |
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i have done this mod on 13 radios so far no failures & have had great results with it running amps.
dynamiteman-433
cef# 1022
radios..uniden76/78elite..cobra29..galaxy66v
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