best 10 meter converted cb

No 10m radio is legal to convert to cb. PERIOD! I am not familiar with the Magnum radio but if it is technically a 10M radio, then it's not legally possible to mod it due to FCC type acceptance issues and power limitations.

Type Acceptance means that the modes for the band that the radio is designed to be used will be specific to that service.

In this case, modification of a 10M radio to transmit in the cb band would violate this rule as the radio has the ability to transmit in a mode not legal on 11m. In this case, it is the ability to transmit in FM. FM is not legal to transmit on 11M. There are limits on what mode is legal on CB radio. The only modes allowed on CB are AM/SSB. I am not sure about CW. I had read in the past that CW is the only mode allowed on ALL FCC regulated frequencies but I am not positive. FM is definitely out!

Power limitations are as follows for CB:

AM power limits are set at 4 watts, carrier, 7 watts modulation. This means the radio cannot exceed 4 watts transmitting an unmodulated carrier signal nor can the wattage exceed 7 watts with modulation included with the carrier. Modulation is "voice". I am fairly certain that this Magnum radio would do much more then that.

SSB signals cannot exceed 12w. Once again, I am certain that this Nitro would exceed the legal power limits stated above. There is no modulation clause as SSB power is solely dependent on the modulation to create its transmit power. That is why SSB signals get out a bit further then AM signals. Twice the power essentially.

Also there is no heterodyne interference when 2 signals mix over each other in SSB. Heterodyne signals are the SCREEEEECH you hear when 2 AM signals are reaching your radio at the same S unit. Neither one can outpower the other so they cause interference in your radio. I am sure KC0REY can give a better explanation about that when he gets the ball rolling again.

These are the rules as they stand. Take your chance if you decide to purchase and mod this radio. The feds and others are watching more closely now then ever before. This has been mentioned over and over by KC0REY and others on this board. You risk up to $10,000 fine if caught.

Hope this helps and I hope that KC0REY gets better soon and gets rolling again. Missin ya in the board bud!

 

I dont want to sound like somebody else, but 10 meter export radios are not legal even after beeing converted. I would just get a Cobra or Uniden. Get a good antenna and good coax set the swr's as low as possible. I used to run export radios and never had any problems because I stayed on the C.B. channels.Export radios are capable of transmitting above and below the regular 40 channels aloted to c.b. radio and thats when you get into the HAM radio bands.I dont have a problem with export radios I just like the older c.b. radios. I hope I was able to help you, im sure some others on here will offer some good advise. Good luck.

 

One way to tell about the "10 Meter" radios is to look for the "band" switch. If it has "bands" of 'channels labeled, "A,B,C,D,E,F" and so on, it is NOT legal for use on CB. It also must have an FCC certification sticker with an FCC number. ANY radio that exceeds 4 watts output is against the law to use on CB! Your best bet is to use a certified CB radio and refer to Part 95, FCC regulations. These days, the surest way to get into trouble is to start talking on those "extra" channels as, contrary to the past, FCC IS now looking!

Best,

Gadfly

 

LAWS HAVE BEEN CHANGED, FCC DONT CARE ANYMORE.... PUT SOME FIRE IN THAT WIRE SON !!!

 

well gearjammer I hate to burst your buuble, but the laws have NOT been changed. Of course if you would like to qoute a specific FCC reg with number and a link, we'd all be glad to check it out. Enforcement has waned some since Riley retired, but the laws haven't changed.

 

Opens up a 5 year old thread just to make an idiot of himself...classic!

 

"AM power limits are set at 4 watts, carrier, 7 watts modulation."

on the contrary, the wattage must not exceed 4 watts PEP ( peak envelope power) which is the modulated measurement of the modulated carrier .
and 12 watts on ssb
a 4 watt dead key with 1 watt of modulation will put you out of spec and there fore make it illegal

 

any radio that doesnt have the "type acceptance" from the fcc is in violation , even the old 23 channel radios , by the letter of the law are illegal.


RULE 9 - Equipment
{A} You must use an FCC type accepted CB transmitter at your CB station. You can identify an FCC type accepted transmitter by the 'type acceptance'label placed on it by the manufacturer. You may examine a list of type-accepted equipment at any FCC Field Office or at FCC Headquarters. Use of a transmitter which is not FCC type-accepted voids your authority to operate the station.
{B} You must not make, or have made, any internal modifications to a type-accepted CB transmitter. (*read Rule 25) Any internal modification to a type-accepted CB transmitter cancels the type-acceptance, and use of such a transmitter voids your authority to operate the station.

RULE 10 - Power Output
{A} Your CB station transmitter power output must not exceed the following values under any conditions:
AM [Amplitude Modulation] - 4 watts carrier power [CP]
SSB [Single Side-Band] - 12 watts peak envelope power [PEP]
{B} If you need more information about the power rule, see Part 95/ Subpart E.
{C} Use of a transmitter which has carrier [CP] or peak envelope power [PEP]in excess of that authorized voids your authority to operate the station.

 

Fcc doesn,t even care about cbs anymore thats why they deregulted it, heck they don,t even really care about ham, aslong as you stay off the bissness bands, no code ham ruined ham radio just like kids on cbs,in my opinion of course.