Even today it’s a controversial subject – but we don’t know why. The purpose and importance of grounding coaxial line shields are so critical to safe and clean telecommunication station operation that it should not be a matter of discussion, except as a how-to subject such as this paper represents. The coaxial cable used in…
It’s been a while since we’ve seen a new echo box. I think RF Limited up until this one was the only company still making an echo box. The problem with these add-on boxes has been RF feedback. RF Limited units seemed immune to this type of problem in most installations. They did quite…
This is a comparison report between coaxial cable lightning arrestor units manufactured by Polyphaser Corp. and Industrial Communication Engineers, Ltd. Both companies manufacture a wide variety of such protective devices and are sold worldwide. Each of the designs described in this report is protected. by patents issued by the U.S.- Bureau of Patents and Trademarks…
Half of the following modification increases the AM modulation swing. It allows you to reduce your carrier to around 1 Watt while maintaining a swing of up to 18 Watts. This is good for those of you who want to blast out on AM. This will also drive any amplifier to sound like an RF…
The Cobra 146GTL and Uniden PC- 122XL are low-cost AM/S SB radios using a gPD2824 PLL chip. The Uniden PC-122XL is the same radio as the PC-122. They changed to the XL series when they went to the Cobra look front panels. Uniden also made the PRO-810e, a base radio with the same board as…
Recently I spoke with Jim Wilson and he told me that Wilson Antenna is in the process of doing comparison tests between their Truck 5000 antenna and open coil as well as other trucker style antennas. They have been and will be testing the “Q” of the coil in these antennas. He tells me that…
This is a correction of the article in last months issue. The value for R131 was omitted. I’ve added arrows to the drawing for the three resistors that change the value for quicker identification. Reference shaded areas to the right REMOVE R166 ADD 8.2K from the emitter of TR26 to 8 volts constant CHANGE R131…
Thank you for reading CB World Informer. I hope you enjoyed this issue. If you did, it would be appreciated very much if you would help get the word out about the newsletter. This publication takes a great deal of time to produce. To keep it going the readership must be high. This can be…
The PanaVise pedestal mounts are designed for cell phone use. Even though CB and Amateur radios are much heavier, these mounts are strong enough to hold a good size transceiver in place. They come in various lengths. The 4-inch mount has one ball adjustment for angle adjustment. This mount is good if you just need…
This is a subject that we just had to write about. In the lightning protection business, we come into contact with many people who have had both dangerous and disastrous experiences with Mother Nature. And one that has perplexed antenna users for decades is the very common damage and destruction to radio equipment when connected…