|
Errata for Radar for Mariners, 1st edtion (2005) p. v. Second column, second paragraph. Change ... principles of radar operation to .... principles of radar navigation. The simulator is designed to teach radar "navigation" (collision avoidance, piloting, and position fixing) not radar "operation," which might include selecting optimum settings, etc. p. 56. In the caption, it would be valuable to point out that you can still see the "K" racon, close abeam, even though the discussion is focused on the new "M" racon at 9 nmi off. p. 57. add new page on SARTs (what they are and how they behave) and a screen shot of the radar image. Mention IR on can shut them off. add IMO notes on tuning to optimize SART detection. p.79. Figure 6.8. some of the target answers are not correct. new: 1. Upscreen: BH, EH, CN, DN, EN, DC, GL, JC, IC... we were missing IH and EN. In 7. Quarter targets IH, CN, EN, DC, IC, EH, (GC). We add EH and remove the extra DC. Also to 9. stern targets add (GC) as it is really between stern and quarter. p. 101. Top of right column. An LCD display should be compared to a "flat-panel" TV, not a flat-screen TV. p. 113. Reference glossary for more detailed min range definition. p. 124. In the left column, 3 pp, 6 min and 30 min, respectively phrase is backwards. The time intervals are correct in table, top of right column (6 minutes for General exposure, 30 minutes for Occupational exposure), but reversed in the respectively phrase. p. 125. Table in Figure 7-21. The far field distances for 24" and 48" scanners are not right. They should be twice the near field values and be 24m and 98m. p. 128. Add note that IR can prevent detection of weak targets that might be seen only every other sweep or so, and that it can prohibit the detection of SART signals. P. 142. similar mention of IR effects on SART signals p. 157. figure 10-6. Make the situation labels (1 through 5) go straight up the page. As they are now, it appears they are getting set to the right, but these are just labels. There is no significance in their location. Also look into why we do not show the 5th example in head-up mode... it would be the one in trouble. p. 168. figure 11-8. This figure illustrates how two radar targets that look like they are headed toward you side by side are actually headed in quite different directions. This is an important concept, for example, when it comes to identifying the lights you would expect to see. The picture is correct, but it appears the zoom level of the two inserts are not the same, which has the consequence of showing buoy trails of two different lengths. The actual buoy trail length is the same in both, so this picture would be better if these two zooms were at the same scale with the same buoy trail lengths. In the next edition we will fix that detail.
p. 194. figure 11-32 could be improved with more detail. We have annotated the top part to put the figure in better perspective on the radar screen, and in both top and bottom parts we extend the analysis to extract the SRM of the target after our maneuver. These extra steps are not discussed in the book, since this maneuver was already at the limiting edge of the content we intended to cover. See Radar Discussion Group for the annotated versions.
p. 207. In Figure 12-6 top left it has a head-on, and crossing situation for clear weather.
In the text of the figure, second sentence it says "In clear weather, Rule 15 tells us (situation 1) both to turn right --....." This should be changed to Rule 14. p. 216. and elsewhere, change "automated identification system" to "automatic identification system." Glossary
Index Somewhere |