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AIS Receiver Range Record?
"Queeg" wrote in message oups.com... Paul wrote: I just received a SR162 dual-channel AIS receiver, which I will be using on my sailboat -- the old single-channel SR161 will end up at home. Paul - I am assuming that the SR162 and SR161 have the same range, and that either would have made the same long distance discovery. Is this right? Or does the dual channel have a better chance of seeing something far away? Do you notice much difference in the speed of target information acquisition between the two? Is the SR162 noticeably faster? My SR161 picks up targets and shows their speed quickly, but can take 5 or 10 minutes to fill in the name, size, destination, etc. Gary, I haven't compared the specs, but I am assuming that the sensitivity is similar between the two units. I haven't done enough comparison to say for sure, but the dual-channel unit ought to acquire the info more rapidly -- and that does seem to be the case from my brief experience. I will move my older single-channel unit to my house (just for fun, and as part of my development platform). I want the dual-channel unit on the boat, because my antenna will be mounted on the stern rail (not as good as on the mast), and I want to acquire the signals ASAP. I, too, have seen the fast initial acquisition of the dynamic data, which gets sent often, and the slow (or not at all) acquisition of the static data, which is sent less frequently. The dynamic data is all you really need for collision avoidance, but it is nice to get the ship name (contained in the static data). I will report back once I get more experience with the system. So far, the SR162 seems very nice, although the price delta from the single-channel unit is a bit steeper that I would like. -Paul |
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