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Cobra Uniden Antenna Amplifiers Microphones Cb radio reviews modifications Cobra Uniden Antenna Amplifiers Microphones Cb radio reviews modifications Dual antennas – looks aren’t everything I’ve recently seen a lot of people asking about installing dual antennas on their vehicles. The misconception for many is that two antennas is better than one. In fact I had one person tell me that they will soon be removing their ” stainless steel whip and installing dual 3 foot antennas instead so that they can “hear” better. There is a lot of mis-information floating around out there about dual antennas and their purpose or performance. The place you normally see dual antennas is on the big rigs. The antennas are normally mounted on the mirrors on either side of the truck. If for example they only had one antenna on the drivers side of the truck, much of their signal would not radiate out from the passenger side of the vehicle reducing their signal in that direction. The dual antennas create an effective way for large trucks to radiate a signal on both sides of their vehicle. This type of configuration also creates a front-to-back type of radiating pattern so that signal is emphasized to the front and the back of the truck which in the case of a trucker traveling down a long highway is a good thing.

Best CB and Antennas

CB radios have long been a mainstay for truckers, but they’re also popular with off-roaders, RV owners, and motorcyclists and hobbyists. CBs are useful in keeping groups of individuals organized and in contact during events, such as those enjoyed by “wheelers. Also, some drivers still use CBs to identify speed traps, even though radar detectors have largely taken over that task.

Connect the end of the cable to the antenna mount and push the plug back into its hole in the tailgate. You can use a little black silicone sealant to seal the end of the cable to the plug.

Twenty meters designates the length of the particular radio wave used to transmit and receive voice and Morse code. Radioteletype is used frequently on this band as well. A dipole design for the meter band is an efficient and inexpensive antenna for the novice and veteran ham enthusiast alike. Separate the speaker wire into two foot lengths.

These will be the dipole antenna elements. Cut the connector from one end of the coaxial cable. Remove 1 inch of insulation from this end. Slice down the side of the braided sheath and twist the braid into a wire. Orient the terminal strip so that the rows are vertical. Connect an antenna wire to each of the top screws.

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Most of the veteran truck drivers at work have used the Cobra 29 Classic for over 20 years. Here is my problem: This radio is giant.

Connecting dual TV antennas to your TV set can help your signal reception because you are likely to receive signals from opposite directions, depending on where your home is located. You can use either indoor or outdoor antennas.

In simple terms, your radio would like to radiate all of its power, but can only do so if the other components cooperate. Bad coax and mounts, or inefficient antennas and ground plane can cause system bottlenecks. The easiest way to understand the concept is to think of it in terms of water flow. That is, if you put a one inch faucet on a two inch pipe, your potential output will be restricted by the one inch outlet. So goes antenna systems. Setting your antennas SWR will reduce the restriction of radiated power.

If all radios only transmitted on one channel, it would be a much easier task to design antennas. As it is, on CB alone, there are 40 channels to contend with. Mobile antennas can only be made to resonate at one specific frequency channel. The goal of the antenna manufacturers is to build the antenna to resonate at a frequency in the middle of the available band channel 19 on CB and make it broad- banded enough to keep the off-frequency related SWR at the two extreme ends of the band below 2.

It should be noted that if you communicate on one or two adjacent channels anywhere within the band, you can tune your antenna to achieve optimum performance on those channels. Most people, however, prefer to use the entire bandwidth when tuning.

The Cell Phone Antenna Booster Guide – Everything You Need to Know

Now, this radio doesn’t have a lot of bells and whistles that some of the other radios on the market have, but it is going to get you communicating on the CB band without breaking the bank. As for the installation, I am going to give this a simple two out of three wrenches. I say simple two out of three because there isn’t a whole lot to it, however, there is still going to be some wiring necessary. Now, as with any CB set up, you are still going to need an antenna and of course, you’re going to need the cable for the CB radio to connect everything up.

Apr 20,  · So if you have a 10 foot wire comming out of the back of your CB and a Y connector, and a 6 foot cable attached to one antenna, it needs to be a 6 foot cable to the other antenna too in order to equal a distance of 16 feet each from the radio to the : Resolved.

For North American consumers the release of these radios is going to be a little bittersweet; yes the radios are awesome, yes they are now available, but if you want one you’re going to have to purchase from a dealer in Europe and have them ship it over. Are the radios worth shipping over? You’ll have to make that decision on your own.

Instead of the shiny chrome bezel the President Grant II opted for a flat black look to match the cases. While the case of the radio is similiar to the Uniden and there are some design similarities, the board is different and the President Grant II really does act like a completely different radio. The microphone connector is a six pin connector and there is a “hot” pin so be careful in your microphone wiring if you decide to hook up a different microphone.

Moving to the buttons along the bottom of the radio which run underneath the display, you’ll find that these are dual purpose buttons. A short press is the standard function while holding the button in for seconds enables the secondary function. The secondary funtion enables a key lock which locks all controls on the radio. The secondary function enables your roger beep I should mention that the President roger beep is very distinct, simple, and not very annoying. The secondary function is the scan feature on this radio.

The secondary function is the dual watch function the dual watch toggles between a chosen channel and either channel 9 or

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See the detail drawing on this page. Coat this connection with sealer or cover it with tape to protect it from corrosion. All vertical antennas need to be grounded in some way. A mobile CB antenna uses the car body as the ground.

DUAL Monkey Made CB Radio AntennaS,Short Shaft, 49″ Stinger MM9 30k Watts 2 ITEM MONKEY MADE MM9. with extra heavy duty Ferrule and Stinger. Monkey Made is the hottest, newest, easiest to tune. they don’t stand up to the durability of a Monkey Made antenna.

Radio Scanner Accessories and Antennas “Rubber” flexible antenna. Flexible “Rubber” Handheld Antennas – Most handheld scanners come with a flexible “rubber” antenna, popularly referred to as a “rubber duckie”. They consist of a coil of wire wrapped in a rubberized-plastic exterior. These antennas are small and convenient, but do not typically perform as well as a telescoping whip antenna.

However, there is a significant difference in performance between different models of rubber antennas. If you are constantly moving and prefer a rubber antenna, you may still enjoy significant improvement in weak-signal reception with your radio scanner by purchasing a different rubber antenna. You may want to read some independent testing results verifying such improvement prior to purchasing a new antenna. Telescoping Whip Antennas – – Telescoping whips antennas are extendable metal antennas made from a series of short tubes.

They generally give better performance than a rubber antenna and are recommended for portable use where the small size and flexibility of a rubber antenna are not needed.

Basic CB Radio Installation and Troubleshooting

Orders requiring technical work are shipped in about days. It’s tuning can make you or break you. When checking the SWR or the “Standing Wave Ratio”, you will be hooking up a simple form of a directional watt meter between your antenna and the CB radio. The meter measures Forward power to the antenna system and then compares it to the reverse or reflected power from the antenna system.

By checking the SWR at channels 1 and 40 on your CB, you will have a good idea if the antenna is too “long” or too “short” for the center of the desired band. You will also be able to evaluate your system performance and troubleshoot problems.

Ah, the dual CB antenna installation! Few things compare in terms of the looks, bravado and downright classic rugged feel it gives to a pickup truck or big rig. But for pickup trucks especially, dual antenna installs are often chosen for the wrong reasons or with unrealistic range expectations.

Best Way to Hook Up a Cb Antenna Each of these antennas works better at different lengths according to their height above ground and that usually takes a little experimenting at your location.. If you are going to use this antenna with a store bought mount, the threads on the bolt on the bottom of the antenna should mate with the hole in the top of the mounts spring.

Once in the set position, place the meter switch in the Reference REF position and note the reading.. When I tell them it was simply a bad adjustment and send them away, they are surprised. If you change radios, retest and readjust as needed. Each Slinky coil contains approximately 67 feet of spring steel wire and weighs about pound.

The can also be used inside with the center insulator in a corner and the Slinkies strung along the ceiling wall junction or down to the wall floor junction in the corners of the room. Note the value and quickly release the microphone switch. SWR meter, short jumper coax 3 foot. An antenna made from Slinky coils is light weight and simple to put up and if need be out of sight.

One large terminal lug First youve got to get yourself a fishing pole, 6 to 9 feet long. The antennas made from Solid Brass Antennas, 24K gold plated Brass ones and the powder ones do not need to be painted.


Originally Posted by byndhlptom Post a couple of comments the duplexer is a possible solution, but I would just use a trunk lip mount for the scanner. I have done that on several vehicles, the CB doesn’t put out enough RF to damage the scanner input. Just a note, the P71’s had non metal trunk lids for several years Originally Posted by bb Post Not necessarily. I had an Antenna Specialists 2 meter glass mount antenna and it worked just fine.

Apr 20,  · So if you have a 10 foot wire comming out of the back of your CB and a Y connector, and a 6 foot cable attached to one antenna, it needs to be a 6 foot cable to the other antenna too in order to equal a distance of 16 feet each from the radio to the : Resolved.

The area most sensitive to noise caused by corona discharge is at the very tips of a “dipole” style element. Unfortunately this is the highest impedance area, so the very high impedance RF noise caused by corona leakage is matched to the receiver system the best. The tips protrude into empty space away from everything else, and are often at or near the highest point in the antenna.

This is where electric field gradient is strongest and corona most likely to form. HCJB was a high power shortwave broadcast station located at very high elevations in a humid environment. The environment at HCJB was one of the worst possible locations for a high power transmitting antenna. Regular dipoles would have so much corona from the protruding ends that the dipoles would gradually melt back from the tips, shortening the antenna!

The quad reduced E-field gradient at the high voltage points of the antenna while maintaining the same basic pattern and gain as a dipole element. It solved a problem where the antenna tips or ends were charged by a transmitter with very high voltages.

Retevis MR100 Magnet Mount CB Antenna and RG58 Coaxial Cable

A lot of great content is accessible via the Internet, from sources like YouTube, Netflix, iTunes, and others. But will your old antenna work with modern, digital TV? In our case, the antenna was a large, s multi-directional behemoth that was hanging in our attic, unused for decades. However, my dad remembered it working quite well for analog TV, before cable was available in our area, so we decided it was worth the risk to try wiring it back up.

For TV wiring, it converts old ohm twin-lead wire to new ohm coaxial wire.

Wire Antennas For Limited Space Jim Brown K9YC Santa Cruz, CA Only up 25 ft, but a lot of noise on E Coast. 26 A Fan Dipole for 20/15/10 An 80/40 Fan Dipole. 27 An 80/40 Fan Dipole Ferrite Choke and Feedpoint of 80/40 Fan Dipole. 28 Fan Dipoles – How They Work Improvising Antennas.

A big project and probably not practical starting out. Would make a conversation piece or odd recycling project. How are you going to point it? Smaller antennas may work just as well. Below is a stock picture Wikimedia of an old s style home satellite tv dish, about 8 to 15 feet across. That’s what you want to play with, if you have the time, energy, and patience.

These were popular in the early s to receive pay TV channels like HBO direct from the satellite, unencrypted, without paying. Once these channels were encrypted and consumers were asked to pay, the huge dishes started disappearing from homes and into the landfills.

How to install Cb and whips!

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