Reply
 
Thread Tools Search this Thread
 
Old 09 March 2015, 21:28   #41
Member
 
Country: USA
Town: Mountain View, CA
Boat name: Six Park
Make: Mercury
Length: 4m +
Engine: Suzuki 30ATL
Join Date: Dec 2014
Posts: 209
I am thinking of putting the antenna at the right side of the top flat part of the console. The left side would be the fish finder.

Click image for larger version

Name:	ImageUploadedByRIB Net1425950810.600049.jpg
Views:	175
Size:	43.8 KB
ID:	103469
__________________

__________________
ba_fisher is offline   Reply With Quote
Old 10 March 2015, 08:46   #42
Member
 
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
Really enjoying this thread - top work - I'm a huge fan of well rigged small rib . How about mounting the antenna on the steel frame on the outside of the console - this leaves the console area free for the stuff you will want to put there - (phone, wallet etc ) ?

Pete
__________________

__________________
PeterM is offline   Reply With Quote
Old 10 March 2015, 11:52   #43
Member
 
Country: USA
Town: Mountain View, CA
Boat name: Six Park
Make: Mercury
Length: 4m +
Engine: Suzuki 30ATL
Join Date: Dec 2014
Posts: 209
Quote:
Originally Posted by PeterM View Post
How about mounting the antenna on the steel frame on the outside of the console - this leaves the console area free for the stuff you will want to put there - (phone, wallet etc ) ?
That's a good idea. No one would be standing on that side so the steel rail would be free.

Also, I should avoid adding any more holes to the console. The plastic doesn't seem very strong. Since I added a big hole for a hatch opening, I am thinking of building an aluminum frame inside the console to add more structural support.
__________________
ba_fisher is offline   Reply With Quote
Old 10 March 2015, 12:18   #44
Member
 
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
You might find when you put a hatch in the hatch frame stiffens up the console again ?

Failing that by using the existing holes for the handle etc may allow you to bolt a frame internally that could bond to the inside of the console ?

I think when you come to put the wheel etc on the dash you may surprise yourself just how much leverage you can apply to the set up.

A friend has a very similar console on his valiant - but its GRP so seems very solid . Mines not far off on my Avon but again is GRP .. pics of it on here somewhere ...
__________________
PeterM is offline   Reply With Quote
Old 10 March 2015, 12:38   #45
Member
 
Country: USA
Town: Mountain View, CA
Boat name: Six Park
Make: Mercury
Length: 4m +
Engine: Suzuki 30ATL
Join Date: Dec 2014
Posts: 209
Quote:
Originally Posted by PeterM View Post
A friend has a very similar console on his valiant - but its GRP so seems very solid . Mines not far off on my Avon but again is GRP .. pics of it on here somewhere ...
My console is made of plastic, so it's not remotely as strong as GRP. I bought it solely based on its dimensions and now I am regretting it Anyway, now I am trying to make lemonade out of a lemon.
__________________
ba_fisher is offline   Reply With Quote
Old 12 March 2015, 22:05   #46
Member
 
Country: USA
Town: Mountain View, CA
Boat name: Six Park
Make: Mercury
Length: 4m +
Engine: Suzuki 30ATL
Join Date: Dec 2014
Posts: 209
I grew tired of worrying about the rigidity of the console, so I built an aluminum frame using 1 inch wide 1/8 inch thick aluminum angles. I riveted them together.

You can see a bunch of extra holes since the console is of irregular shape and trying to make the right measurement was difficult.

Click image for larger version

Name:	ImageUploadedByRIB Net1426212124.916231.jpg
Views:	133
Size:	65.6 KB
ID:	103552

Click image for larger version

Name:	ImageUploadedByRIB Net1426212139.646976.jpg
Views:	136
Size:	58.5 KB
ID:	103553

Click image for larger version

Name:	ImageUploadedByRIB Net1426212234.038648.jpg
Views:	142
Size:	37.2 KB
ID:	103554

Click image for larger version

Name:	ImageUploadedByRIB Net1426212248.575306.jpg
Views:	141
Size:	41.2 KB
ID:	103555

Plugged in the hatch for a fitting test, not screwed yet.

Click image for larger version

Name:	ImageUploadedByRIB Net1426212308.013758.jpg
Views:	142
Size:	51.6 KB
ID:	103556

Click image for larger version

Name:	ImageUploadedByRIB Net1426212320.015134.jpg
Views:	143
Size:	49.4 KB
ID:	103557
__________________
ba_fisher is offline   Reply With Quote
Old 13 March 2015, 05:41   #47
Member
 
Ovey's Avatar
 
Country: UK - England
Town: Portsmouth(ish)
Boat name: Wings
Make: Ribeye
Length: 6m +
Engine: Yamaha F115 AETL
Join Date: Oct 2013
Posts: 615
RIBase
Quote:
Originally Posted by ba_fisher View Post
I am thinking of putting the antenna at the right side of the top flat part of the console. The left side would be the fish finder.

Attachment 103469
I would be a little wary of doing this. The "standard" 25W VHF transceiver with a "standard" antenna, with gain of between 1-3dBi and efficiency of probably 65%, requires a safe distance of around 1m (give or take 0.5m depending on antenna). This means that potentially you may be opening yourself up to heating effects of Electromagnetic Frequency (EMF) energy when transmitting. (The effects of heating due to EMF transmissions are not fully known, but Google ICNIRP and you can learn more). (Unfortunately my day to day job is working out safe distances from antennas)!

I also believe most VHF installation guides state a minimum distance between VHF unit and antenna.

Suffice to say, I'd try to put my antenna more than 1m (3'3") away from where I'm standing.

Hope this helps?
__________________
There's weather out there - must be time to RIB!

(Or dive, or ref rugby, or.......)
Ovey is offline   Reply With Quote
Old 13 March 2015, 08:57   #48
Member
 
Country: USA
Town: Mountain View, CA
Boat name: Six Park
Make: Mercury
Length: 4m +
Engine: Suzuki 30ATL
Join Date: Dec 2014
Posts: 209
Hi Ovey,

Thanks for pointing this out. I found a way to raise the antenna 4 ft up, so when I'm sitting the metal part of the antenna will be more than 3 feet away from my head. Do you think this will work?

http://www.continuouswave.com/whaler...HFAntenna.html
__________________
ba_fisher is offline   Reply With Quote
Old 13 March 2015, 09:43   #49
Member
 
Ovey's Avatar
 
Country: UK - England
Town: Portsmouth(ish)
Boat name: Wings
Make: Ribeye
Length: 6m +
Engine: Yamaha F115 AETL
Join Date: Oct 2013
Posts: 615
RIBase
No worries, just trying to be helpful. As I'm sure you're aware, the higher the antenna the greater the range anyway, so anything you can do to raise it is in your best interest for reception as well as safety! It looks like that'll do the job nicely.
__________________
There's weather out there - must be time to RIB!

(Or dive, or ref rugby, or.......)
Ovey is offline   Reply With Quote
Old 13 March 2015, 14:52   #50
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,121
A friend of mine installed the same exact polyethylene console on his dive boat.

We stiffened it up just like you did. We also added a plate of aluminum behind the steering wheel, and added some aluminum plate pieces to the track piece where the floor mounting bolts go through. We thrubolted with backer plates too (although togglers would work).

Zero problems in 4 ft+ chop at 20-25 mph.
__________________

__________________
Richard
Gluing geek since 2007
office888 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:29.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.