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BULKHEAD GROUNDING FOR TELECOMMUNICATIONS FACILITIES

Most telecommunications facilities in the Land Mobile Services, Broadcast, Amateur and Personal Services are woefully under-grounded. Each year insurance companies pay out thousands in claims for lightning damage to installations that are “fully lightning protected”. When inspecting these facilities it’s easy to see why lightning damage so easily caused, or why the station suffers from […]

USING ANTI-OXIDANTS TO ENSURE GOOD CONDUCTIVITY

Anti-oxident compounds are not a new invention or idea in the pursuit of good integrity or longevity of joint connections that make up telecommunication facilities. But their use has been popularized and improved in recent years with the advent of synthetic lubricants with wide temperature capacities and improved lubricity. Many important connections in radio and […]

The Texas Ranger SRA-158 Stock Mic

Good quality stock microphones have been almost impossible to find, over the years manufacturer’s reduced the quality of stock mics. Now it’s to the point that even the old coffin shaped mics have been cheapened to the point of not being worth buying. Only Vanco makes a decent quality coffin shaped mic, and it isn’t […]

MODERN LIGHTNING PROTECTION FOR RADIO FACILITIES: AC POWER LINES

Lightning damage to electronic equipment caused by induction or direct hit and traveling along AC power lines is the most frequent port of entry in modem telecommunication systems. It’s not uncommon to find facilities that have extensive lightning protective devices on RF transmission lines and telephone lines but have little or no AC line protection. […]

MODERN LIGHTNING PROTECTION FOR RADIO FACILITIES: CONTROL LINES

Most communication facilities have a variety of unshielded control line wires used for antenna switching, sensor monitoring, antenna rotation, telephone service delivery, or other local functions. While these lines are a necessary part of the overall station design, they also complicate matters from a lightning perspective because they. offer multiple entry ports for large and […]

Astatic’s Final Edition D-104 Silver Eagle

astatic A*stat”ic, a. [Pref. a- not + static.] (Magnetism) Having little or no tendency to take a fixed or definite position or direction: thus, a suspended magnetic needle, when rendered astatic, loses its polarity, or tendency to point in a given direction. Source: Webster’s Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.a·stat·ic ( -st t […]

The New DF 10000 Low Pass Filter by RF Limited

Yup a 10,000 watt low pass filter. Most of you don’t need anything quite this heavy duty, but it’s a pleasure to see some new serious equipment coming down the pike. There are some out there that could use this gem. There are some that could use a 50,000 watt version. But believe it or […]

Magnum 357DX Adjustment Locations

“S” Meter—————————————-RV-1 Power Meter————————————RV-8 AM Power Maximum Adjust—————RV-16 FM Power Maximum Adjust—————RV-14 SSB ALC—————————————–RV-9 AMC – AM Modulation———————–RV-4 FM Deviation———————————–RV-3 Driver Bias————————————–RV-13 Final Bias Adjustments———————-RV-11 & RV-12 Carrier Balance——————————–RV-6 Unmarked Near Center Of PCB Magnum 357 DX Main PC Board Layout Click Diagram For Close-up

Magnum Maverick A24 Conversion

The conversion is very simple and is the same as the Connex 3300, General Lee and other similar 10-meter radios. Just remove the four 100 Ohm resistors on the bottom of the main circuit board in the PLL area. Reference the photo below for the four resistors.I will cover the adjustment potentiometers when I write […]

Slip Seat Radio Box – CB World Informer

This slip seat radio box is great for truck drivers who don’t always drive the same truck every day or just don’t want to leave their radio equipment in the vehicle for security reasons. In the past these boxes were constructed from either plywood or particle board making them heavy when empty. This box is […]

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