 |
 |
|
|
|
|
|
|
||||||||||||||||||
|
|
|||||||||||||||||||
|
|
|||||||||||||||||||
|
|||||
|
|
January, 2006 QST Feedback
In "The Doctor is IN" [Oct 2005, p 53], David, K1WER, correctly points out that the ac connector shown in Figure 1 is shown as female and should be male. He further notes that there should be a fuse before the switch.
In "Getting to Know Your Radio" [Dec 2005, p 57, in the DSP section], Ralph, K1RD, notes that the terms digital to analog converter and analog to digital converter were inadvertently interchanged. The sentence should read, "The normal analog radio signs are sampled and converted into digital form in an analog to digital converter."
In "What's the Deal About 'NVIS'?" [Dec 2005, p 39], the incorrect figure appears in place of Figure 1. The correct Figure 1 is shown here. You can download the entire corrected article in PDF format.
 Figure 1--At A, Predicted 40 meter geographic coverage plot for a 100 W transmitter in December at 0000 UTC (near sunset), for an SSN (Smoothed Sunspot Number) of 20. The antennas used are 20 foot high Inverted V dipoles. At B, 40 meter coverage for same date and time, but for 100 foot high flattop dipoles. Most of California is well covered with S9 signals in both cases, but there is more susceptibility in the higher dipole case to thunderstorm crashes coming from outside California, for example, from Arizona or even Texas. Such noise can interfere with communications inside California. |
In "Amateur Culture" [Correspondence, Dec 2005, p 24], the call sign of Chuck Steed should be WB7TXG.--T. E. Swafford, KB7YC
In "Katrina Chronicles 1" [Nov 2005], the top photo on page 43 was taken by Gene Floyd, AI4KK, and the photo on page 44 was taken by Theo Titus, K4MVL.
