Summertime has certainly come to this part of Oklahoma. It's hot, it's humid, and it's time to be outside. I wanted to share this re-post with you, as it's one of the most popular articles under Frank's Radio Communications. It's a good reminder of the different uses of CB type radios. If you're not paying attention to what's going on in the world, then you seriously need to start looking. Now is the time to upgrade your communication gear. Please go back and read some of the other radio posts. If you've got food stored, and you've got your beans, bandaids and bullets, then it's seriously time to think about some form of communication. If you would, read this re-post, and you need to get your act together. Take care.
We'll talk more later, Frank
Originally published June 27, 2013
Hello, Frank here.
I would like to tell you about a CB radio that is not really a CB, but it can be. I don't understand exactly why these are made or sold, but I would assume it has to do with profit. There is going to be some new jargon on this post, so like always, if you don't understand everything, wait a little while and it will soak in.
Export radios, to the best of my knowledge, are what they say they are. These radios are meant to be sold outside of this country - exports. Other countries use different bands and frequencies for their radio communications. Therefore, these radios are easy to modify and can be used for the frequencies and bands in this country as well. Some export radios are programmable via computer which makes it easy to add the CB frequencies. Another option is power capabilities up to 100 watts, 200 watts and more. These radios also tend to be more expensive. Are they legal to use on the CB frequencies? The answer is no. Do people use them on the CB frequencies? The answer is yes. Some of the previous sites I have posted sell export radios. If this is what you are looking for you will probably never have any problems with the FCC unless you are interfering with other forms of transmission.
10 meter radios are similar in nature to export radios. Almost everything I said above applies to 10 meter radios. Let me explain the difference. A 10 meter radio operates on the amateur radio frequencies or ham radio. You have to have an amateur radio license to use the radio on 10 meters. I will talk more about amateur radio licensing and frequencies in a future post. Okay. Follow me here now. Some of the ham bands are 10 meter, 12 meter, 15 meter and so forth. The CB radio frequencies fall between the 10 and 12 meter ham bands. CB is often called 11 meters. Meters have to do with the length of the frequency signal. But at this time, that is not important. It will be discussed more later.
So. You can buy a 10 meter radio with a small modification or you can program in the CB frequencies with the computer program option if it is available. Let's clarify something here. A ham radio license does not allow the ham radio operator to operate on 11 meters because CB radios are approved by the FCC to operate on CB frequencies only. Is it legal to operate a 10 meter radio on CB frequencies? The answer is no. Do people use 10 meter radios for CB purposes? The answer is yes. These same dealers mentioned above also carry some of the 10 meter radios. It's a matter of driving 56 MPH in a 55 MPH zone and driving 95 MPH in a 55 MPH zone. Both are illegal, one will attract a whole lot more attention than the other.
Can you mount these radios in your car or truck? Sure, you can. If the radio runs higher power, it will come with the appropriate size
power cable. If you need to extend this cable to your battery, use the same size cable or larger. In most cases, you can use the same antenna as any CB radio, unless you are running an exorbitant amount of power. In that case you need to make sure your antenna will handle the power. If you need to tune these, you can do it yourself or you can take it to your local CB shop and they can tune your rig for you.
If you are giving thought to purchasing one of these types of radios, please get one with SSB. Remember, some, but not all of these radios can be used for 10 meter ham radio operation.
If you choose to use this type of radio for a base station, your one amp power supply will not work. A quick review here: P = E x I. P = power or watts, E = voltage, and I = current or amps. Let's say you are running 200 watts of power. That is your P. Your voltage will be 13.8, that is E. That is 200 divided by 13.8, equals 14.5 amps or I. Don't forget the rule of 80. This means you will need at least 18 amps just to run this radio. That's why on the last post it was recommended that you purchase a 30 amp power supply for your home.
There is something I failed to mention on the last CB post. You cannot take your base station and outside antenna to a CB shop and have it tuned so you will need to do it yourself, or have a competent friend help you. This will involve an SWR meter, and a three foot jumper, which is a short piece of coax with a 259 connector on each end which allows you to put the meter in line between the radio and the antenna. This will allow you to tune your SWR down. Read the FAQ at this site. It will answer most of your questions about SWR. Again, make sure your base station antenna can handle the power you are using. Don't push any antenna to the maximum, use the rule of 80.
If you can, ground your radio. The radio may or may not have a ground plug on the back, most CB's don't. If it doesn't, slide in a piece of flexible, coated, copper wire about size 12-14, where you attach the screws to mount the radio. This will give you a good, solid ground. In your car, find a screw somewhere connected to metal. In your house, run the ground wire back the same way you brought in your antenna wire and attach it to the three foot copper rod that you placed in the earth. Do you have to ground your radio? No. Will it help clean up some sound issues? Yes. When we talk about ham radios, grounding will be covered in greater detail.
By the way, if you choose to get your ham radio license, you can use these radios to operate on 10 or 12 meter frequencies. Just a little bonus there if you decide to make that switch.
I know all of this information about the CB radios, export radios and 10 meter radios is a general and broad view. I would encourage you to read some of the earlier posts about laws, regulations, safety, and some of the websites that have FAQ sections about radios and antennas. There is a lot of information about CB radios that is not included here. In future posts we'll be talking in more detail about power supplies, antennas, coaxial cables, connectors, ham radios, GMRS, FRS and commercial radios.
What I have to say now is a personal observation. The reason I got into radio communications is because someday there may not be the regular types of communications that we have now. When I say regular, I am talking about cell phones, hard-line phones, internet, television, AM/FM radio, etc. A lot of people currently have CB
radios. Some folks approve of the type of traffic on them and some don't. But if there is a nationwide emergency, CB radios and GMRS will be excellent forms of communication. Most people don't realize that the two-way communication radios that they have right now are of an excellent quality and can be used during an emergency. Of course, I hope this day never comes. But I believe that the wolf is at the door. I would recommend all families have some type of communications, whether it is two-way or listening only. We will talk more about receive only radios - how to power them with things such as rechargeable batteries, small solar panels or car batteries. This is all part of communications.
This finishes up my posts on CB's for now, more will come later. Next I am going to talk about GMRS, FRS, and MURS.
We'll talk more later. 73, Frank