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…
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…
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…
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…
Firestik wasn’t the first with the red, white, and blue fiberglass antenna. They were the first with these patriotic colors and the stars on top in the blue field. These are an excellent choice for us who wish to show our patriotism on our vehicle. Have you noticed the flags that have frayed from high…
Echo Circuit Clock Noise This modification will eliminate any clock noise, or transmit oscillation, that may occur while using the echo circuit in the Maverick A24 transceiver.1.Disconnect the transceiver from the power source.2.Remove speaker side cabinet.3.Unscrew the echo board from the side chassis of the transceiver.4.Locate Q602 on the echo board -Q601 is an empty…