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  #11  
Old 08-07-2007, 07:56 PM
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You answered my question in your description. To go to a CB channel you must know the exact frequency and tune to it...Right?

My only issue is that 99% of the people I run with have CBs and I want to be able to communicate with them also without having to have 2 radios.

So...theoretically you could use use a ham to talk to CBs, but it would be illegal because of the power output?
You also say that it would take one of the 2 radios you mentioned to be able to communicate on both cb and ham levels and even then those radios would have to be highly modified to work. Right.
Just trying to understand what I am up against better.
Thanks for the tech help on this.
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  #12  
Old 08-07-2007, 09:58 PM
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hams and CBs are different frequencies that why we carry both
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  #13  
Old 08-07-2007, 10:11 PM
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Quote:
Originally Posted by waggoner5 View Post
My only issue is that 99% of the people I run with have CBs and I want to be able to communicate with them also without having to have 2 radios.
I'm planning on running both in my FJ40, for a while anyway.
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  #14  
Old 08-07-2007, 10:32 PM
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CBers must UNITE and fight the force

Had I known 4 months ago what I know now (which isn't much), I'm wishing I had gone with a nice Ham radio and a cheapy CB. Such is life and I'll have to keep fighting the Ham force for now until I can afford to upgrade
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  #15  
Old 08-07-2007, 10:50 PM
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If I read Nathaniel's post correctly, it looks like one could get a cheap CB and a cheap 2M radio for a lot less than a Ham radio capable of being modified to also do CB. right?

So how about install your CB, then get your license and then a handheld 2M radio. You can run a mag mount antenna for the Ham for tons more range, and you'd be right in there with the rest of the group.
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  #16  
Old 08-08-2007, 06:38 AM
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Default Figure out what is right for you...

Quote:
Originally Posted by waggoner5 View Post
You answered my question in your description. To go to a CB channel you must know the exact frequency and tune to it...Right?
To listen to a CB frequency on anything other than a FCC "type-accepted" CB radio yes, you would need to know the frequency. I did this yesterday on my HF radio at home while writing my first response. I tuned in the CB band and was listenting to some foul mouthed truckers on channel 18 probably using illegal amplifiers talking nonsense. I would not be able to key my mike, because the radio is designed to prevent transmitting on that frequency.

Quote:
Originally Posted by waggoner5 View Post
My only issue is that 99% of the people I run with have CBs and I want to be able to communicate with them also without having to have 2 radios. .
Easy. Convince all of your buddies to get a ham license and radio OR don't worry about getting the ham radio and stick with CB.

Quote:
Originally Posted by waggoner5 View Post
So...theoretically you could use use a ham to talk to CBs, but it would be illegal because of the power output? .
If you took all the technical aspects of modifying the radios for granted, yes, you could use a Ham radio with a transmitter designed to operate in those frequencies to talk to CB.

Quote:
Originally Posted by waggoner5 View Post
You also say that it would take one of the 2 radios you mentioned to be able to communicate on both cb and ham levels and even then those radios would have to be highly modified to work. Right.
Just trying to understand what I am up against better.
Thanks for the tech help on this.
Those two radios represent the high and low price range of mobile/portable ham radios designed to work(not necessarily transmit) on frequencies that include both 2 meter and CB. For some folks the modifications are realatively straight forward, I myself would not attempt them for two reasons. One, I was not the factory who built the radio and would not come near to making the modifications as well as the factory who designed and built the radio in the first place. Two, any modification of this sort voids the warranty, so if something does go wrong(given the sensitivity of some of the circuits in those radios this is highly likely for anyone not skilled in doing so correctly), you have on your hands a $700-$1200 paperweight.

------------------------------------------------------------------------------------------

Seriously, though, anyone interested in these questions needs to determine the reason for doing the ham radio hobby. Consider all the pros and cons, and then figure out if it is right for you. Maybe you want the Ham radio for the extreme difference in clarity over CB. Maybe you're interested in the hobby. Maybe it would be too much of a pain to have 2 radios. If all of the folks you wheel with are die-hard CB folks, maybe you want to keep things CB.

My old adage with regards to CB is "Don't polish a turd." You can spend $200-$500 on CB stuff and still not achieve the quality, clarity and range of VHF for trail talking. You can spend $150 on all you need for a VHF setup and talk to people 30 miles away like you were face to face. If you want to stay CB, make whatever equipment you buy work, don't just slap it together and expect great things.

My 0.50, whew!
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  #17  
Old 08-08-2007, 07:31 AM
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I'm not being assimilated yet but don't CB's operate on AM frequency while Swine's use FM?
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  #18  
Old 08-08-2007, 08:12 AM
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Quote:
Originally Posted by DaveInDenver View Post
This is the legal part I don't understand. If you read Part 95, Subpart E about the specifications for CB, it seems like any ham radio would have no trouble meeting the requirements. The bandwidth, sporadic and radiated emissions, sensitivity, etc. for CB is far less restrictive than what's possible with our ham radios. Ham radio is covered by the Part 97 requirements and since hams are expected to tinker, the actual technical requirements for ham are different. It's perfectly legal for you to modify and build your own gear for ham. You can take a CB radio, modify it for use on 11m and there's nothing wrong with doing that, perfectly within your realm as a ham. But I think once you do that, the radio is no longer technically legal to use on CB. So I guess my comments are only talking out loud, since ham rigs are not tested to Part 95. It seems the radios themselves should more than meet the technical requirements laid out (and naturally it would be up to the operator to make sure to use the proper transmitter power for CB). It's all moot because it's not legal to use it.
Dave,
I kinda preached this in the Ham class I did for the club last fall. You're correct, as a ham, part of the hobby is to tinker. So could someone get all funky and build a radio with two different VFO's in one box, one for CB and the other for VHF, sure! Would the FCC question a radio at 4 watts PEP that is transmitting on the CB frequencies, probably not in a hundred years. Bruce(WDW) made reference at the ham class to actually using a modified CB rig on 10 meters and it worked well using 3 watts of power. Correct again, according to part 95, it would no longer be a "type-accepted" CB radio. Is someone somewhere using a ham radio for both CB and VHF? Probably. Can anyone just go down to Radio Shack or HRO and buy a radio that does this? No.

Folks who are not in "the know" think that CB and VHF are relatively the same thing because the antennas are realtively the same height, and the radios are in a similar case. What remains a mystery is that to have that CB radio work at the same level as a 5 watt VHF rig you would need a much larger, much more effecient antenna than what is commercially available not to mention not as pratical to mount on a bumper.

Kevin,
The channels up to (IIRC) 23 use dual sideband AM. After that, 24 thru 40 MAY use single sideband (SSB) but most radios use AM for the entire band. VHF and UHF more commonly operate on FM, but some folks also use SSB. When used efficiently, AM gives a much richer, full signal partly because you are using the entire carrier to transmit the signal. SSB uses only half that carrier, so the same power carries further.
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