masterkeymaster
Member
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- Aug 29, 2007
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- 59
I have a nice cb base station radio but can anyone tell me if there are any mods for it like extra tx power?
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Robyn SB-520D
- Thread starter masterkeymaster
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It will last you longer if you leave it stock.
The few extra watts you might have squeezed out of it won't make any noticeable difference,and will shorten the life span of the rf final transistors.
n9zas
KU2S
Newbie
Invest in a decent antenna. You'll more than make up any gains you might think you get by "tuning" that radio. I've got an SB-520D that's stock, using a 5/8 wave verticle.. I've talked to Greenland on SSB from New York on that radio.
The other half of the equation is to use the best possible coax.
Using a cheap coax only throws away a part of the signal you might need to get out.
It might also throw away a part of the signal you need to receive.
I just bought 120' of brand new 9913f.
The 9913 Belden coax - rigid is a better cable, but I already had a 70 and a 50 foot length of each.
The other half is to put the antenna up as high as possible.
There is formula's for calculations for height for 5/8 wave antenna's for maximum efficiency.
Using a cheap coax only throws away a part of the signal you might need to get out.
It might also throw away a part of the signal you need to receive.
I just bought 120' of brand new 9913f.
The 9913 Belden coax - rigid is a better cable, but I already had a 70 and a 50 foot length of each.
The other half is to put the antenna up as high as possible.
There is formula's for calculations for height for 5/8 wave antenna's for maximum efficiency.
a2phil
Member
For extra channels (you can get over 200) do a Google search for uPD 858 channel mods...
I have a Cobra 139 XLR that has the same board...
I have a Cobra 139 XLR that has the same board...
I'll agree with the first two posts, leave it alone and use a better antenna. Power just isn't the answer to all your problems, it's a loosing proposition. To make any significant differences you have to double power output to be able to hear a change. Even then, that change isn't going to be much. I'm not aware of any radio that is made in such a way that it's possible to double it's output without significantly reducing it's 'life'. Which says nothing about it's signal quality.
But it's your radio...
- 'Doc
But it's your radio...
- 'Doc
robyn520D
I have this and it was peak out at about 8watt dead key and swing about 3watt more, sound good but after I put on a D104 lollipop two weeks later I lost my finals in the radio, so if you do tune it up don`t use a power mike you last longer with a old hand mike plus if you was going to run a foot warner you would be too must power most foot warmer is low drives 3 watts or less.
I have this and it was peak out at about 8watt dead key and swing about 3watt more, sound good but after I put on a D104 lollipop two weeks later I lost my finals in the radio, so if you do tune it up don`t use a power mike you last longer with a old hand mike plus if you was going to run a foot warner you would be too must power most foot warmer is low drives 3 watts or less.
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