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Astatic’s Final Edition D-104 Silver Eagle

The definition of astatic that best suits the D-104 line of microphones is the one immediately above: having no particular directional characteristics. For years this mic dubbed the “lollypop” has been the most sensitive microphone known in the communications field. They have the capability of picking up everything in a room and more. I remember […]

RCI 6900F TB ALC Mod, Tune-Up, And PCB Adjustment Locations

The ALC modification requires the removal of surface mount parts and the addition of conventional through-hole type parts. When removing these components, take extra care not to overheat the circuit board. The traces will lift quite easily. When installing standard components, due to their larger size, it’s best to solder them to the trace where […]

First Web Issue- CB World Informer

Well…this is the first web issue of the CB World Informer newsletter. As always, it took longer than anticipated. The more time spent on an article, the more information came to the surface. All this inspired new ideas and changes. This issue evolved from a simple information source to an online magazine. Back in 1997, […]

CBWI February 1997 GROUNDING COAXIAL CABLE SHIELDS

Grounding Coaxial Cable Shields: Why, Where & How

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 […]

MODERN COAXIAL LIGHTNING ARRESTORS: POLYPHASER VS. I.C.E.

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 […]

Cobra 2000/148 & Uniden Grant XL ALC & AM Modulation Modification

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 […]

Channel Board For Cobra 146GTL & Amp; Uniden PC-122XL

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 […]

Wilson Does Comparison Test – Trucker 5000 vs. Open Coil Type Antennas

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 […]

Cobra/Uniden SSB Chassis Mod UPDATE

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 […]

Help Get The Word Out

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 […]

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