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Old October 6th, 2008   #1
Marshall
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Default CB and Antenna Installation Information

If you have been wanting to put a antenna on your bike, set the
SWR on a new install or put in a CB radio, this is the best place
to start ... All information was certified by Firestik about 9 years
ago and has been used my thousands since.

http://bludolphintravel.com/gmg/marshallmod.htm

This site covers Honda ST1300, Yamaha Royal Star Venture and
Yamaha Venture Royale .. Plus, I can answer just about any question
or help you with your install ...
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Old October 6th, 2008   #2
zldrider
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Default Re: CB and Antenna Installation Information

Looks like nice work. Like your Avatar too. ;-)
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Old October 6th, 2008   #3
Marshall
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Default Re: CB and Antenna Installation Information

Thanks Joe .. All the parts are off the counter parts, but I did the
research to see which one would work 100% of the time .. Did most of
the research on the 87 -89 Yamaha Venture Royale which I was riding
at the time .. Got Firestik engineers to run a series of check on it at the
Honda Hoot when it was in Asheville and they more of less certified it ..
Since then, I have done hundreds of installs on the Royale, ported the
whole thing over to the Royal Star Venture (RSV) and in March of this year,
put it on my 03 ST1300 ...

Works fantastic with the J&M 2003CB unit and many many more ... I am
available by email with any help the crew here needs and if they come to
N. Charleston SC, would be more than happy to give them a hand with
their installation ...

Thanks for visiting my web site .. Have been so busy with work, it is
WAY out of date ..
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Last edited by Marshall; October 6th, 2008 at 07:02 PM.
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Old October 7th, 2008   #4
Andy Kirby
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Default Re: CB and Antenna Installation Information

I'll second Joe's thanks as I'm about to upgrade to a 'real' antenna from an NGP version, which I must say has been pretty effective, for short ranges but I'd like to get out a bit more and speak to the truckers, hence the upgrade.

Thanks again

Andy
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Old October 8th, 2008   #5
Marshall
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Default Re: CB and Antenna Installation Information

If you need anything Andy, my email is on the MarshallMod page, and
don't be afraid to ask ... It is a good swap .. NGP are great on a boat,
ATV, Goldwing's etc but not on a motorcycle with lots of good frame
to ground your mount to ..
Attached Images
File Type: jpg AST Ant Mount.JPG (69.5 KB, 192 views)
File Type: jpg AST Trunk &Antenna.JPG (86.6 KB, 189 views)
File Type: jpg AST Trunk and Antenna.jpg (48.9 KB, 188 views)
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Old January 17th, 2009   #6
Andy Kirby
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Default Re: CB and Antenna Installation Information

Well, I finally got my SWR down to 1.2 across the whole channel range but boy did I have to use a LOT of earth cables to the mild steel antenna mount. Even with 5 lengths of old Gerbing cable I could not get it below 3. It was only when I added another thick piece of domestic copper wire that it dropped to an excellent 1.2.

Needed at lot of patience but I got there, now I just hope it's a lot better than the old NGP setup I've been using.

Thanks for the help and encouragement.

Andy
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Old January 18th, 2009   #7
Marshall
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Default Re: CB and Antenna Installation Information

Good job .. Sounds like the mount wasn't totally grounded .. I use 10ga
stranded copper that is coated for my ground .. The thing here is where
you attach the wire, via connector, has to be clean so the wire connector
is in good contact with bare metal .. If the mount is powder coated or
painted, it need to be clean when you attach the ground cable ... The
other end is attached to either side of the frame by the two bolts that
are on each side and under the rear portion of the seat ... But, sounds
like you have it under control ...

What antenna did you end up using .. I have found the 2' Firestik II with
tune tip and 3' Firestik FireFly are the best ... The FireFly has better
output due to the height, but both work really well ... Keep me informed ..
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Old January 18th, 2009   #8
Andy Kirby
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Default Re: CB and Antenna Installation Information

Hi Marshall

I went with the 3' Firefly, as far as the painted surface goes I actually fitted a stud running through the mount as I felt that would be effective, I started with a fairly thin wire and gradually worked up using layers after some 'frustration' set in. The SWR was way above 3 for pretty much the whole time. It was only when I picked up some copper cable from the basement and tried it that I got the result I was looking for. I actually have 3 ground positions under the seat, one to each of the mounts you use at the back and a separate one to the J&M filter ground.

I go there in the end and knowing 'it could be dome' was a great comfort :-)

Thanks


Andy
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Old January 18th, 2009   #9
Marshall
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Default Re: CB and Antenna Installation Information

Good choice with the FireFly .. Have used them exclusively on the
Yamaha Venture and Midnight Venture system ... They work really well.
Have done 4 installs using the 2' Firestik II on the ST and yes, takes a
bit more tweaking, but it will tweak right down to 1.2:1 which is good ..
The thicker ground wire is very necessary on the ST ... Glad things are
working out well .. It is a good setup to replace the NGP ... I am looking
for a little 60w heater to add in just to keep the ice off the antenna,
OH, shoot, it never snows here .. hahahaha ...
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