Quote:>You can use modified commercial or CB radios in the amateur bands if you
>have an amateur license, but you can't modify any radio to operate in a
>commercial or CB bands. Radios for non-ham bands generally need to be FCC
>type-accepted, which a radio you modified would no longer be. Amateur
>radios don't need to be type-accepted, so you can make/modify your own
>radio for use in the ham bands.
You are correct on the above. Modifying ham gear to work CB is a no-no!
Quote:>As far as Mark's question, I have an old Uniden Cobra 148 that I've been
>wanting to convert to 10M. They're readily available and the schematics
>are easy to find also. I'll have to select a few new components in the RF
>section because it's not going to work too well 2MHz out of band, but I
>think it's reasonable to do it with this radio. It only outputs 5 watts
>(all the cheaper CBs will put out around 3 watts), so it will be my QRP
>radio in a couple of years when 10m opens up.
Bill, I have converted literally DOZENS of CB rigs to 10m over the past
19 years I've been a ham. Never once have I found a need to modify the
RF section (or any other section) to make it perform 100 percent on 10m.
You'd be surprised at how broad-banded these things are, and how far you
can tune 'em with very little effort. Most can be tuned for anything
from 22 to 30+ MHz. I've helped friends convert CBs to 12 meters (that's
24.9 MHz for those who didn't know) and only a re-tune was required to
make 'em work (plus the usual crystal changes, of course). Also, what-
ever the power output was on 11m, it will be on 10m. A typical SSB CB
rig will put out between 10 and 15 Watts PEP, and it will do the same
after 10m conversion. If your Cobra 148 is only putting out 5 Watts on
SSB, it either desparately needs alignment, or something's wrong with
the transmitter section, or perhaps both.
You'll be pleased with the Cobra 148's performance on 10m. I ran one
for several months during the last sunspot cycle, and I worked all over
the world with it.
73 de KC5NG