Does this work? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 09-29-2009
Talisman66's Avatar
Member
 
Join Date: Jul 2007
Location: Racine on the lake
Posts: 59
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Talisman66 is on a distinguished road
Does this work?

Cruising Ebay looking at boat parts, I came across this SSB grounding aternative. Iam curious if any of our resident sailors have seen this before and what is really inside of the tubing? Reading about SSB installs, everyone seems to conflict with one another about the best way to do it. What works? What does'nt? Has anyone used this exact product? Thanks
Marine SSB Ground (Sailing, Radar, Dynaplate):eBay Motors (item 110440031060 end time Oct-05-09 20:56:43 PDT)
__________________
s/v Talisman 1979 SJ45 #179
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 09-29-2009
Alannc44's Avatar
Member
 
Join Date: Dec 2008
Location: North Carolina
Posts: 84
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 6
Alannc44 is on a distinguished road
Quote:
Originally Posted by Talisman66 View Post
Cruising Ebay looking at boat parts, I came across this SSB grounding aternative. Iam curious if any of our resident sailors have seen this before and what is really inside of the tubing? Reading about SSB installs, everyone seems to conflict with one another about the best way to do it. What works? What does'nt? Has anyone used this exact product? Thanks
Marine SSB Ground (Sailing, Radar, Dynaplate):eBay Motors (item 110440031060 end time Oct-05-09 20:56:43 PDT)
I think he makes a mistake by calling it a "ground system". It's more like the counterpoise in a dipole system. Ideally, you could stretch out his cable(s) in a straight line with the center line conductor and consequently create a dipole. At least that's what his system sounds like to me.

Alan
WN4HOG
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 09-29-2009
DwayneSpeer's Avatar
Old Fart
 
Join Date: Oct 2003
Location: Pasco, WA, USA
Posts: 514
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
DwayneSpeer is on a distinguished road
No

No, it's not a ground, it's a dipole antenna and it will be very directional if it works at all.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Hey, can one of you guys pass me a crab?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 09-29-2009
Alannc44's Avatar
Member
 
Join Date: Dec 2008
Location: North Carolina
Posts: 84
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 6
Alannc44 is on a distinguished road
Quote:
Originally Posted by DwayneSpeer View Post
No, it's not a ground, it's a dipole antenna and it will be very directional if it works at all.
Dipoles work fantastically if you get them stretched out. You can even string them up vertically for vertical polarization, or horizontally for horizontal polarization. For vertical operation just tie one end to a halyard. Horizontally might be a little more problematic since the idea is to get it level.

The advantage of horizontal over vertical, besides polarization, would be the angle of take-off. A dipole will be affected by the water and cause short skip to be a little stronger than long distance propagation unless you get the antenna way up high out of the influence of the water. The vertical setups work really well for really long distances since the angle of take-off is so low. For that setup try to keep the wire as far from stays as possible.

Yes, a dipole has some directivity, but you can use that to your advantage. Just keep in mind the signals will be stronger when hitting the antenna broadside. (and transmitting). That means, if you have a vertical setup, the weaker part will be straight up. No problem there.

Alan
WN4HOG
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 09-29-2009
nuffoftexas's Avatar
Member
 
Join Date: Aug 2009
Location: in a van under the bridge down by the river
Posts: 81
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
nuffoftexas is on a distinguished road
Quote:
Originally Posted by Talisman66 View Post
Cruising Ebay looking at boat parts, I came across this SSB grounding aternative. Iam curious if any of our resident sailors have seen this before and what is really inside of the tubing?
It's a piece of wire... for $129. Jeez Loueeeze!

Tip #1 - don't EVER buy anything radio related off of E-Bay!
Tip #2 - see tip #1

You already have access to the world's greatest grounding (signal reflecting) system. It's called THE WATER! I'm short on heart meds right now, so that's all I care to say.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 09-29-2009
Senior Member
 
Join Date: Jul 2008
Location: chesapeake bay
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
scottyt is on a distinguished road
i just want to fire one shot across his bow

its the car comment. does any one really believe that lightning after traveling 1000,s of feet thru the air really have a problem with jumping the other 6 inches past the tires.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 09-29-2009
Omatako's Avatar
Senior Member
 
Join Date: Sep 2003
Location: Auckland New Zealand
Posts: 2,441
Thanks: 0
Thanked 30 Times in 27 Posts
Rep Power: 12
Omatako will become famous soon enough
This is confusing (it's easy to confuse me with radio stuff).

How does a copper wire connection to the "grounding lug" become a dipole antenna?

I have a dipole antenna encased in plastic and "clipped" onto my backstay. I can't remember who makes them but I got it in the US. It works really well and it doesn't appear to be directional at all. Edit: I found it, check Gam Antennas

So amongst other things, I'm also a little puzzled at the comment that says to "keep the wire as far away from the stays as possible". Mine cannot possibly get any closer.

Maybe a sketch from the boffins will clear this up because reading the above just muddles things for me.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

__________________

"Two possibilities exist: Either we are alone in the Universe or we are not. Both are equally terrifying."

Arthur C. Clarke

Last edited by Omatako; 09-29-2009 at 09:55 PM.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Eye-splicing lines... beatkiddo Seamanship & Navigation 11 09-20-2006 02:28 PM
Superfluous Sextant? akoutdoors1 Seamanship & Navigation 4 08-10-2006 11:51 AM
Sewing Machine for Canvas Work offline2004 Gear & Maintenance 5 02-21-2006 11:22 AM
The Definitive Spring Work List Tom Wood Her Sailnet Articles 0 05-03-2004 09:00 PM
Finding Work along the Way Sue & Larry Cruising Articles 0 10-09-1999 09:00 PM


All times are GMT -4. The time now is 06:02 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.