August 2015 Issue

Price: $3.00

HF Air Monitoring: Understanding NOTAM Information

By Tony Roper

International air-route safety is everyone’s concern, no more so than for those who use the world’s air space daily—military, commercial and civilian aircraft. To help, the world’s aviation authorities make available Notice to Airmen (NOTAM) widely available. These notices tell all pilots what to expect along their regular routes across oceans and continents. But, they also give clues to air monitoring enthusiasts as to what type of aircraft may be in the air and on the air. Tony explains how to unravel NOTAM information to learn when and where to listen.


TSM Reviews: Whistler WS-1080 P-25 Phase I and II Scanner

By Chris Parris

The last few years have been revolutionary for the world scanning radios. In additional to the great technical strides that the manufacturers have pushed to the electronics market, some names in the scanner world have disappeared and new names have come to the forefront. One name new to the world of scanning is Whistler, of Bentonville, Arkansas. Prior to this, Whistler had previously been known for their line of radar detectors, GPS devices and power inverters, but no scanners. Chris takes a close look at this very capable scanner.


Advanced Radio Noise Filtering using DSP

By Geir Laastad LA6LU

Using the signal of a Norwegian Non-directional Aeronautical Beacon (NDB) Geir shows us how it is possible, in some cases, to achieve almost 100 percent noise-free radio reception with advanced use of Digital Signal Processing (DSP) technology. Using a combination of built-in filters and outboard DSP speakers, Geir describes techniques that are most effective for narrow band CW reception, but will also improve the reception of SSB or AM signals.


Digitally Speaking: Digital Voices on HF Part 1

By Cory GB Sickles WA3UVV

When most hams think of digital voice operation, they think of VHF and UHF repeaters. To be sure, that covers where the vast majority of digital voice QSOs take place. While simplex 2-meter and 70-cm activity is out there, in most areas it subsides once one or two repeaters are established in a given area. But, there are plenty of frequencies on HF where proponents of each digital methodology have established a foothold. Cory tells us where those frequencies are and what you need to get on the air.


Multiple Satellite Reception from a Single Ku-Band Dish (Part 2)

By Mike Kohl

Last month Mike walked us through the theory behind multiple feed horns on a stationary Ku-band dish for reception of Free-to-Air satellite signals. In Part 2 he shows how it’s done; crowding as many as 12 feed horns on one 1.8-meter Ku-band satellite dish that can see 12 satellites positioned from 89 degrees West to 119 degrees West. It requires making a custom feed support and takes meticulous adjustment to get it all right, but so worth it!


Scanning America

By Dan Veenaman

Scanning Wisconsin; FCC Field Office Shuffle


Federal Wavelengths

By Chris Parris

US Navy HYDRA Systems


Utility Planet

By Hugh Stegman NV6H

What’s up with SKYKING?


Digital HF: Intercept and Analyze

By Mike Chace-Ortiz AB1TZ/G6DHU

Irish Navy HF Operations


HF Utility Logs

By Mike Chace-Ortiz and Hugh Stegman


Amateur Radio Insights

By Kirk Kleinschmidt NT0Z

Gensets and UPSs: Play it Smart!


Radio 101

By Ken Reitz KS4ZR

2015 Field Day Report and the C64 Today


Radio Propagation

By Tomas Hood NW7US

Sunspots Got You Down? You Can Still Work the World


The World of Shortwave Listening

By Robert Wagner VK3VBW

Radio Verdad – Small Voice, Big Heart


The Shortwave Listener

By Fred Waterer

Kid’s Shows, BBCWS and CRI


Amateur Radio Astronomy

By Stan Nelson KB5VL

Noise in Radio Astronomy


The Longwave Zone

By Kevin O’Hern Carey WB2QMY

You Have Questions…


Adventures in Radio Restoration

By Rich Post KB8TAD

A Classic Pair of Heathkit Hi-Fi Twins

Part 1: the AJ-11 Tuner

The Broadcast Tower

By Doug Smith W9WI

What Happened to WOWO


Antenna Connections

By Dan Farber AC0LW

Soldiering on after a Microburst
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