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      Abbreviated rules   07/28/2017

      Underdawg did an excellent job of explaining the rules.  Here's the simplified version: Don't insinuate Pedo.  Warning and or timeout for a first offense.  PermaFlick for any subsequent offenses Don't out members.  See above for penalties.  Caveat:  if you have ever used your own real name or personal information here on the forums since, like, ever - it doesn't count and you are fair game. If you see spam posts, report it to the mods.  We do not hang out in every thread 24/7 If you see any of the above, report it to the mods by hitting the Report button in the offending post.   We do not take action for foul language, off-subject content, or abusive behavior unless it escalates to persistent stalking.  There may be times that we might warn someone or flick someone for something particularly egregious.  There is no standard, we will know it when we see it.  If you continually report things that do not fall into rules #1 or 2 above, you may very well get a timeout yourself for annoying the Mods with repeated whining.  Use your best judgement. Warnings, timeouts, suspensions and flicks are arbitrary and capricious.  Deal with it.  Welcome to anarchy.   If you are a newbie, there are unwritten rules to adhere to.  They will be explained to you soon enough.  

Jud - s/v Sputnik

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  1. Very useful - good to get me started - thanks a lot. I'm just setting up at home shack now, just about to install tuner - I'll spend some time "browsing" around.
  2. Cool - great info. Really appreciate it - sounds like you've got lots of time on that antenna!! So, reading what you wrote, I guess what I'm curious about is, how does a beginner ham get a feel for what's "on" the various HF frequencies? I.e., why wouldn't you (as you say) typically want to go below 5 MHz? I get that lower HF freqs are absorbed during the day/don't generally work/travel shorter distances - is that why you haven't found the need to go below 5 megs? Or is it b/c of "content" - what you want/need is just not in those bands? I don't have a "feel" at all for the HF bands, so that's what I'm trying to understand re: antenna choice/trade offs and antenna frequency bandwidth. Questions, questions :-)
  3. Home HF antennas are so much simpler :-)
  4. Fan-bloody-tastic. Sounds like a great topic for another thread. Seriously, it's a very interesting topic - and I'd be interested to read a dedicated thread on it, to see what other knowledgeable folks have to say about it. FYI, plan on sat phone use next year for a small boat voyage to Alaska (where HF radio not useful, and VHF coverage can be spotty).
  5. It's that damn EM wave physics again! :-) Makes sense.
  6. Good point - hadn't thought of that. I suppose 23 feet length (actually 7 meters), the Shakespeare product, is optimized (trading off other variables...) to be resonant on the range of HF bands. Although the shorter (18 ft, 5.5 meters) Moonraker antenna is sold (their specs) as 2-30 MHz. Isn't it the job of the tuner's caps and coils to --within reason-- create resonance on a wide range of frequencies for a given radiator? I mean, even with a tuner, you're not, for example, going to get a short 1 meter long wire antenna (like a standard VHF one) to be resonant on, say, 28 MHz, but the difference in resonant frequency range available to a 7 meter long antenna (Shakespeare) vs. a 5.5 meter long one (Moonraker) shouldnt, "theoretically", be terribly different, right? Because the tuner should (within reason) do its job? BTW, I've got an Icom AT-130 tuner (which I think is commom for the Icom marine SSB rigs, not ham rigs but will work them), and not their "officially spec'd" AH-4 or AT-180 tuner. My radio (7200) has been opened up. Does this mean that, using the AT-130 tuner, even with a shorter antenna like the Moonraker (5.5 meters long), I should still be able to tune the lower end, like 160m/80m/2MHz marine?
  7. Hey Frank - thanks for the info re: Moonraker antenna. Seems like it's basically a "whip" antenna, albeit a bit (5 ft) shorter (e.g. the "standard" Shakespeare brand one is 23 ft long; the Moonraker is 18'). I notice, just looking now, that the specs on the 23 ft long Shakespeare one say, "Best applications include: calm to moderate seas". :-). Did you ever have any "crazy" movement of your 18' antenna in big seas between Oz and Chile? I like the idea and less expense (plus it's removable) of not having backstay insulators, but something 18' tall swinging around... Out of curiosity, why did you also install an antenna with insulated backstay? (One potential issue that just occurred to me with using a whip like the Moonraker is that I have two separate backstays -- not split -- so any whip antenna at either stern quarter, where backstays are attached, might well be too close to a backstay, and radiate to the stay, messing up rx/tx ?)
  8. R2AK 2018

    We met a guy in his mid/late 70s in Tribune Bay, Hornby Island last summer. We noticed him right away, because we're always the smallest boat in every anchorage: he was smaller, a Montgomery 17! Naturally, we chatted with him - he told me he and his friend took 18 days, and they always left with favourable tide.
  9. R2AK 2018

    Sing along with Team Kingsfold! Turn it up loud! :-) (the last line is the most important)
  10. But you gotta compare the higher "dB" yacht to an idealized isotropic yacht :-)
  11. Valis, Thanks for all the details - very useful. Yes, it seems like the GAM solution has its drawbacks (coupling, as you mentioned), unless it is stood off the backstay a good meter or so :-). But then, in that case, might as well just run a separate wire antenna, away from the rig (like the so-called Rope Antenna). As I understand it, an insulated backstay is probably "best" as far as antenna performance and especially ease of use. But downside is high cost b/c of insulators. Second "best", perhaps, a standard sloping, end-fed wire antenna (I.e., like the Rope Antenna, or just a wire! But properly insulated), kept away from stays (b/c of capacitive/inductive coupling). But might be tricky for some folks to set up quasi-permanently, I.e., to run deck-level end to tuner down below. But I like this idea best since it means I don't have to commit to modifying the backstay "permanently", and it would probably would be sufficient for as much as I want to use my radio on board now. (I might well want the simplicity of an insulated backstay later on, if full-time, long-term cruising and could also justify the cost then.) Third, perhaps least desirable option, the GAM, since it's close to backstay and might work might at times, but also might sometimes suffer poor performance (b/c of coupling). At least, this is my basic overall understanding...
  12. Yup, in fact one of the examiners for my ham license the other day is a sailor - but just left for the Bahamas! Perhaps I can catch up with him later this year when he's back.
  13. Other options re: antenna (1) separate dipoles for various bands, e.g., http://atomvoyages.com/articles/improvement-projects/244-dipole-1.html Not a "streamlined" method, but it works. And, (2) rope antenna - just heard about these. Akin to the split lead one you mention, I think. (A separate antenna, not using backstay.). Have no idea how well they might work, or if anyone (like Practical Sailor?) has ever reviewed them: http://www.ropeantenna.com/. But it's basically just an antenna wire inside a piece of rope...sailors will buy anything that sounds cool!
  14. My point was simply I asked a simple question re: advice/knowledge on installing an HF radio, and get an opinion against HF radios etc. Totally off-topic, but such is a forum. Oh well, maybe I'm the cranky one. :-)
  15. Yeah, Kent Island above presciently warned about trolls :-) There are times that posting on forums, well, makes me not want to. Cranky old men with axes to grind, people who can't stick to a basic topic but need to try to ram an opinion in your face. (Surely there's a topic he can post to somewhere, "HF radio on board, pros and cons"?) Oh well. I was warned. It never occurred to Daddle I might actually want a radio AND a sat phone. Or maybe like radio. (Psst, it's an amateur [ham] radio, not a marine SSB rig.) Oh well, never mind.