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  1. H

    Looking to get ~40 mile range out of CB without 102" whip?

    All effective communications is line of sight. When you put something 3 or more stories high between the transmit and the receive, you will have little or no reception. Even in my situation, being on a high plateau, when you have signals behind a mountain, you cannot talk to them, because the...
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    Forum 10 Metre contest.

    Just a suggestion, maybe you could write to the people that made N1MM and see if you could get them to add your contest to their logging software. Me personally, I like QRP, and I think low power / not QRP should be not more then 25 watts, which in my opinion is all the power you need to operate...
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    Question on 10 meter HAM purchase

    Removed by Admin
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    Question on 10 meter HAM purchase

    Removed by Admin
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    Looking to get ~40 mile range out of CB without 102" whip?

    Let's change the way we look at a radio signal from expressing it in sheer watts to expressing it in DB - since any RF engineer you talk to is going to explain it to you in this manner. The radio as you like to call it will be called the Generator, and the antenna will be called the load. In...
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    Hello! I got my fist radio!

    A friend of mine calls me almost daily to tell me about the contacts he made with his Radio Shack 10 m / 25 watt SSB radio and his quarter wave ground plane antenna up about 16' off the ground, at a location that is almost 1450' amsl, with average terrain somewhere around 1400'... This morning...
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    Looking to get ~40 mile range out of CB without 102" whip?

    The ground plane for 10/11 meters is about 9 feet square. The only vehicles with that kind of steel would be a Chevrolet Suburban or a Ford Expedition. It takes multiple bonding - because of all of the plastic.. RF likes lot's of metal. So you would have copper braid, at least 1 inch wide, 2...
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    Looking to get ~40 mile range out of CB without 102" whip?

    NOO - a desert is the wrong place to check the range of two transceivers because of the soil conductivity. And, electrical power line noise should be just 60 cycles, while ignition noise is almost non existent - especially on GMRS frequencies. We still have some noise from plasma televisions...
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    Looking to get ~40 mile range out of CB without 102" whip?

    Why do you say GMRS is only good for 1 mile? GMRS - is a licensed radio service. You can use a transmitter with 40 watts if you have a license and there is some repeaters still out there. Technically there is no difference between the GMRS frequencies and the amateur radio 70cm service, which...
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    Looking to get ~40 mile range out of CB without 102" whip?

    Its the antenna's job to do the heavy lifting, a mag mount antenna cannot capacitively couple well enough to the body of the vehicle at frequencies near 11 meters. What a joke, a 400 watt amplifier will not increase a mobiles range enough to talk 40 miles. First you need to deploy a better...
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    Looking to get ~40 mile range out of CB without 102" whip?

    NOT GROUP - FAMILY.. Mom, dad, brother, sis, aunt, uncle, gramps, grandma - maybe even a cousin. You keep using the term RADIO. To me - a radio is a one way device. What you want to say is handheld or transceiver... A GMRS transceiver will not talk 40 miles, the frequency is too high and the...
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    Looking to get ~40 mile range out of CB without 102" whip?

    It isn't the amount of power radiated, it is how you radiate it. We have this all the time on 75m phone. One operator doesn't have a good antenna and so he uses an amplifier so everyone can hear him, the couple of extra Db he gains is insignificant unless everyone else uses amplifiers so he can...
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    Looking to get ~40 mile range out of CB without 102" whip?

    With the exception of CB radio, a limited amount of power on MURS or FRS, you cannot operate anywhere else without getting some type of license. A Ham license you have to earn by taking a test, while GMRS you just buy - each person @ $85 for 5 years. Its not the amount of power that determines...
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    K1N Navassa Island DXpedition is Ham Radio History

    I'm glad to see it go, it sounded more like channel 18 on the CB radio then it did ham radio. The operator running 17m didn't id with his own call sign once every half hour as prescribed by the part 97 and he was running 20 - 30kc's up, without checking to see if the frequency was even open. The...
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    WTB

    How about some pictures? What do you mean by covers?
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    My Imax 2k...

    Just an idea, maybe I am just thinking out loud. Do a simple little check. Get a long piece of pipe or 40' of tower and put ground radials under the tower and cut the coax so it is 2 wavelengths long - electrically and then turn the power on your radio - ham or CB down to it's lowest setting and...
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    In a nutshell

    2X what VKRULES says. As an example, a cell phone is a mobile device, while a tower is a fixed base station. In the days of 2G coverage, it was very common to be in the shadow of the tower, could see the light blinking on the tower, and yet have no coverage. The array of antenna's around the...
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    40/20/10 Meter Fan Dipole Attic Antenna

    The test doesn't explain to you that what you are doing is essentially broadcasting. It doesn't matter if it is 1 watt or 10,000 watts, we are all doing the same thing. What the test does is give you a minimum amount of exposure to radio and electronics so at least you will know something. The...
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    40/20/10 Meter Fan Dipole Attic Antenna

    The reason I use UHF and VHF is because most people only has a Technician Class License and most people can comprehend easier what a 2m or 70cm signal will do with 1 watt, 2 watts, 5 watts, 10 watts, 25 watts or 50 watts. On HF - power is irrelevant. It is possible to operate on 10m phone with...
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    40/20/10 Meter Fan Dipole Attic Antenna

    Yes, that equipment has been around practically as long as radio itself has. My very latest piece of equipment that I purchased at a hamfest for a grand total of $5.00 is a old Lafayette Citizens Band Transceiver Tester. This is one of the exercises that a friend of mine was doing as a club...