In the previous post, I discussed using Splat! to predict the receive level of an RF signal. In particular I considered CBLFT UHF CH25 as received from the CN Tower as shown above in Figure 1. In order to study ATSC_8VSB which is the DTV standard used in North America, GNU Radio can be used… Continue reading GNU Radio ATSC_8VSB Transmitter Simulation
Splat! RF Signal Propagation, Loss and Terrain Analysis Tool
About Splat! Splat! is an RF Signal Propagation, Loss, And Terrain analysis tool for the electromagnetic spectrum between 20 MHz and 20 GHz. Splat! software is Copyright © 1997-2018 by John Magliacane KD2BD. Ref.1. Splat! is free software. It may be redistributed and/or modified under the terms of the GNU General Public License Version 2… Continue reading Splat! RF Signal Propagation, Loss and Terrain Analysis Tool
Create Any Waveform on Your Function Generator
Function Generators typically produce Sine, Square, Triangle, Saw Tooth and DC signals. Many modern instruments include an AWG or Arbitrary Waveform Generator signal as an additional selection. This allows you to construct your own custom waveform to meet your testing needs. Typical examples might be a dual/multi tone audio signal to test intermodulation distortion in… Continue reading Create Any Waveform on Your Function Generator
Maiden – Whitbread Round The World Race 1989
Just saw Alex Holmes’ s documentary “Maiden” at the Toronto International Film Festival. It’s about Tracy Edwards all female crew that sailed around the world in the Whtibread 1989 race. It follows Tracy’s early life and the various steps leading up to the race. An incredible study of courage, persistence and bravery in the face… Continue reading Maiden – Whitbread Round The World Race 1989
Norfolk to Lord Howe Island Great Circle Distance
On March 31st 1931, Sir Francis Chichester left the Northern Tip of New Zealand on an East to West flight across the Tasman sea. He stopped to refuel at Norfolk Island and Lord Howe Island. Let’s determine the great circle distance and bearings that his Gypsy Moth float plane Madam Elijah ZK-AKK had to fly… Continue reading Norfolk to Lord Howe Island Great Circle Distance