Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: Prev 1 [2]   Go Down
  Print  
Author Topic: Hustler 4BTV Overhaul  (Read 3014 times)
N8CMQ
Member

Posts: 353




Ignore
« Reply #15 on: November 30, 2012, 03:35:25 PM »

Hi Kyle, sorry it took so long to get back with you.
Your traps may have corrosion inside due to the screws
that secure the coil wire, tubing and insulator together.
Mine were so bad, I had to replace one coil with new
aluminum wire. I also replaced the screws with stainless
screws to help prevent it from happening again.
 
 If your traps have corrosion, they can act like diodes.
Did you measure the resistance of the traps? It should
be zero ohms.
 
My traps had three screws that connected the outer tube
to the inner tube, I used aluminum screws to replace those
screws. If your traps have the tapered end, then you don't
have those screws.
 If your insulators are cracked and broken, you can use
lexan/plexiglass to replace them.
 When I disassembled my traps, I used a sharpie marker
to mark the position of the outer tube.
 
 The fact that you are picking up more noise with the
vertical may be a sign it is working. How is the overall
reception of the vertical VS the wire antenna?
I notice the same situation with my 40 M wire antenna
and vertical, and the horizontal wire shows directivity
while the vertical hears signals the horizontal can't
hear off the ends of the wire...
Logged
KC6SLA
Member

Posts: 35




Ignore
« Reply #16 on: December 03, 2012, 06:50:48 AM »

Hi Kyle, sorry it took so long to get back with you.
Your traps may have corrosion inside due to the screws
that secure the coil wire, tubing and insulator together.
Mine were so bad, I had to replace one coil with new
aluminum wire. I also replaced the screws with stainless
screws to help prevent it from happening again.
 
 If your traps have corrosion, they can act like diodes.
Did you measure the resistance of the traps? It should
be zero ohms.
 
My traps had three screws that connected the outer tube
to the inner tube, I used aluminum screws to replace those
screws. If your traps have the tapered end, then you don't
have those screws.
 If your insulators are cracked and broken, you can use
lexan/plexiglass to replace them.
 When I disassembled my traps, I used a sharpie marker
to mark the position of the outer tube.
 
 The fact that you are picking up more noise with the
vertical may be a sign it is working. How is the overall
reception of the vertical VS the wire antenna?
I notice the same situation with my 40 M wire antenna
and vertical, and the horizontal wire shows directivity
while the vertical hears signals the horizontal can't
hear off the ends of the wire...

Thanks. I get less noise on 40m on a simple dipole I had for 20m. The antenna was up only about 8 feet and not being a 40m antenna probably help cut down on the noise since it wasn't made for 40m. I may have to look at the traps. I did notice that the plastic trap covers had small cracks so corrosion could be an issue. I am also wondering if grounding the coax shielding may help. There is a ground rod for the power in the house that is right against the house. Should I hook up to that to ground the shielding of the coax?
Logged
N8CMQ
Member

Posts: 353




Ignore
« Reply #17 on: December 05, 2012, 09:14:31 PM »

You can still buy the trap covers, or you can use heat shrink tubing.
I used black pvc electrical tape on my caps and it has held up over 20 years.
 
Grounding is a tricky subject, look up Toms page and read up what he has to say.
I believe in having an RF and DC ground at the antenna, and leave the power ground
connected from the electrical service through the house wiring to the rig as the only connection.
When I am not operating, the antennas are not connected and the power is also disconnected.
No damage from lightning if the equipment is disconnected!
Logged
Pages: Prev 1 [2]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!