Brookie,
It seems the actual answers to your questions are getting ignored by "the
boat choice" issue (which is being discussed elsewhere, in detail)...
You're drifting quite a ways off from
electronics, and maybe you and those commenting on "the
boat choice", can post further in those threads, where the discussion is quite detailed??
Here, I've tried to steer clear of "the boat choice" issue and just answer the questions at hand: "what are the 'must haves' vs. the 'wants', in
marine electronics"....
....So....
For > 40 years I have studied....and taught....and professionally specialized in antennas,
antenna system design / construction, etc...
Quote:
Originally Posted by brookiesailor
|
So, I think I can help 'ya here...
[Your real issue with stern clutter on a double-ender is going to be
windvane self-steering....and having a lot of
solar....
The antennas are small and unassuming!!!]
First off, most have found
wind gens to be less useful than they thought....and the fact that they typically shade the
solar panels too much, makes having a
wind gen a mistake, for most.....not to mention that their outputs are small (to non-existant) when in most
anchorages and on down-wind runs...
Solar is 100% reliable, and completely silent...
And, nowadays solar is cheaper!!
So, do NOT worry about a wind gen at this point...
Secondly, fitting solar on a double-ender can be more difficult than on modern wide-stern boat....but it IS doable!!
Although, I have a more modern, wide stern boat, have a look at what I did years ago, and has worked well for me for > 8 years and > 12,000 miles
offshore (incl. two Atlantic crossings, multiple full-gales, 3 days thru a tropical storm, etc.)
Solar Panels
4711201
Here's a pic with my
GPS antenna in the foreground, next to the solar
panels...
4700404
And, here are two pics, showing the
GPS ant, second
VHF ant (which would look the same as a HF-DSC rec ant), and
WiFi ant...
AIS Transponder
AIS Transponder
But, let's handle this in a non-technical / layperson manner...
Start at the top and move down, and then forward to aft...
1) At the masthead:
a) You'll have your primary
VHF antenna (which will most probably also be used as your
AIS transponder antenna, by using the Vesper SP-160 at the Nav Station)
This is just a simple, slim, 3' long SS whip, that will be almost invisible from the
deck...
b) LED "Tri-Color" Nav Light /
Anchor Light combo...a small tennis-ball / hockey-puck sized light..
c) Possibly a windex / wind
transducer...a small arrow and cups...
d) Possibly a small round (8" dia) white plastic TV antenna...
2) Although rare....Possibly on a spreader:
a) If you really want a second, high-mounted, VHF antenna...(such as for your
AIS transponder, should you want to not use the Vesper SP-160...)
A small, slim, 3' long VHF antenna...
b) Possibly a small, thin, cellular antenna...
3) The backstay wire will be insulated, so that it is used as your primary HF (SSB) antenna....
Except for the insulators, nobody can tell it's an antenna, 'cause it's just your backstay...
4) On the stern, perhaps on a pole or just on the rail:
a) GPS antenna (a small mushroom looking thing)
b) Wi-Fi / cellular antenna (a 2' tall, slim, white
fiberglass antenna, etc.)
c) HF-DSC whip antenna....(it's a 4' long SS whip, looks like a VHF antenna...)
d) Should you desire some sort of sat comm, such as INMARSAT-C or
Iridium, you'll have a small, 6" high, white antenna (a bit bigger than the GPS "mushroom", sort looks like a miniature-sized half of a football...)
And, that's it, for antennas....
For most:
1 VHF at the masthead..
1 TV "saucer" at the masthead, should you want a TV antenna.
1 GPS mushroom at the stern...
1 HF-DSC whip at the stern...
1 Wi-Fi / Cellular antenna at the stern...
And, if you wish some sat comm, a sat comm antenna on the stern as well...
Your real issue with stern clutter on a double-ender is going to be
windvane self-steering....and having a lot of solar....
The antennas are small and unassuming!!!
BTW, in the "electronics vein", two comments on the "boat A" vs. "boat B" issue....
a) A complete electronics fit-out will NOT cost you a $100K!!! (a LOT less!!)
b) And trying to decide on which boat, based on their "standard electronics" or lack-thereof, especially when the boats are so VASTLY DIFFERENT, is more than odd....it is a BIG mistake...(but that has already been mentioned...
I hope this helps...
Fair winds...
John