Go Back  RCU Forums > RC Boats > RC Airboats
Reload this Page >

antenna questions.

Notices
RC Airboats Discuss R/C Airboats here!

antenna questions.

Old 04-24-2016, 05:27 AM
  #1  
ron ward
Senior Member
Thread Starter
 
Join Date: Dec 2010
Location: merrill, WI
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default antenna questions.

what is used for the antenna tube on a typical water application of a 75 or 72 Hertz radio and how much antenna do I need to have in the tube for good reception ? I know at one time, years ago, when I worked in a hobby shop, I remember seeing an antenna sold for boats, but I don't see them around any more. I assume people are simply putting their antenna in a small tube that supports the wire vertically ?.
I there a tube you can purchase, or is there an actual "whip antenna" made for the purpose ?
Old 04-24-2016, 06:39 AM
  #2  
flyinwalenda
My Feedback: (5)
 
flyinwalenda's Avatar
 
Join Date: Oct 2009
Location: Northeast, PA
Posts: 3,975
Likes: 0
Received 0 Likes on 0 Posts
Default

Keep as much antenna as possible out of the hull and above the waterline. Try using a antenna fitting and nut (or a piece of brass tube glued in) mounted on the deck with the tube and cap to keep things watertight. Feed the wire through, let a little dangle outside the tube and cover it with the cap.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXJH35
Old 04-24-2016, 07:08 AM
  #3  
ron ward
Senior Member
Thread Starter
 
Join Date: Dec 2010
Location: merrill, WI
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

that's what I needed to find out,....thanks !.
Old 04-24-2016, 05:38 PM
  #4  
crispyspa
Senior Member
 
crispyspa's Avatar
 
Join Date: Nov 2004
Location: onalaska, WI
Posts: 1,791
Likes: 0
Received 0 Likes on 0 Posts
Default

Never fold over the end of an antenna wire. It decreases the range. Put a small hole in the cap instead and thread the antenna wire through. use a tiny dab of silicone on the outside of the cap to keep it in place.
Old 04-25-2016, 05:54 AM
  #5  
ron ward
Senior Member
Thread Starter
 
Join Date: Dec 2010
Location: merrill, WI
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

yes, rules for that are pretty much the same a for planes....... i'm relatively new to rc boats, but not to rc. there is absolutely no-one in a 50or 60 mile radius around me, that runs a boat, so there's very little equipment in the shops to look at and even less resource of answers for related questions about boats in my area.
Old 04-29-2016, 04:12 PM
  #6  
Got RPM
 
Got RPM's Avatar
 
Join Date: Nov 2006
Location: AZ
Posts: 821
Likes: 0
Received 6 Likes on 6 Posts
Default

Folding the end of a long 75 MHz antenna does no harm, the entire covered wire is the antenna. This is NOT the case with the 2.4 gig radios, only the last inch or so is the antenna, the rest is just coax wire. It must not be folded over and is best kept inside the antenna tube to keep it dry.


.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.