RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > Topic Specific Forums > Antennas and Associated Hardware > Scanner / Receiver Antennas

Scanner / Receiver Antennas For discussion of any type of receiving antenna used by a scanner or receiver base, mobile or handheld.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 01-28-2013, 6:25 PM
RonnieUSA's Avatar
Member
  Shack Photos
Shack photos
Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2005
Location: Rowan County,KY (Morehead)
Posts: 944
Question SpectrumForce Wideband Antenna

I bought one of these several months ago, and I'm not impressed by it, it receives no better than the back of the set antenna that came with the scanner.
I live in an apartment, and can't put up an outdoor antenna.
My question is, I got my ohm meter out, and was checking the connections to make sure there were no breaks, the center connection is fine, but there is no connection between the outer sleeve, and the magnet.
Is this normal? If so how do You get the ground plane affect with this antenna?

Update:

I fixed the problem by taking off the plastic cover over the magnet, now there is a connection, and working the way I thought it should.
I guess the plastic was not letting it ground just right, at least not for me.

So problem solved.
__________________
Radio Shack Pro-197 - Uniden BCT15X
Win500 - ARC500 - FreeScan - ARC-XT-PRO - ID Tracker III

Last edited by RonnieUSA; 01-28-2013 at 7:40 PM..
Reply With Quote
Sponsored links
        
  #2 (permalink)  
Old 01-29-2013, 6:47 AM
Member
   
Join Date: Dec 2006
Location: Oklahoma
Posts: 1,687
Default

The purpose of the magnet is just to hold the thing on the metal. The other part of it is that the magnet forms one half (one plate) of a capacitor with the metal it's set on (the other plate). The capacitance between the mag-mount and metal it's on is how the "ground" connection is made. You can't measure that capacitance with a common ohm meter.
If it works 'better' after you made the change then leave it alone!
- 'Doc
Reply With Quote
  #3 (permalink)  
Old 01-29-2013, 8:55 AM
RonnieUSA's Avatar
Member
  Shack Photos
Shack photos
Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2005
Location: Rowan County,KY (Morehead)
Posts: 944
Default

Quote:
Originally Posted by LtDoc View Post
The purpose of the magnet is just to hold the thing on the metal. The other part of it is that the magnet forms one half (one plate) of a capacitor with the metal it's set on (the other plate). The capacitance between the mag-mount and metal it's on is how the "ground" connection is made. You can't measure that capacitance with a common ohm meter.
If it works 'better' after you made the change then leave it alone!
- 'Doc
It made a difference, I went from no sound, and no bars on a system to 4 bars, and clear as a bell sound.
So Yes I'm gonna leave it alone.
__________________
Radio Shack Pro-197 - Uniden BCT15X
Win500 - ARC500 - FreeScan - ARC-XT-PRO - ID Tracker III
Reply With Quote
  #4 (permalink)  
Old 01-29-2013, 11:36 AM
NYRHKY94's Avatar
Member
  Audio Feed Provider
Audio Feed Provider
 
Join Date: Mar 2006
Location: New Hampshire
Posts: 1,117
Default

Hi Ronnie:

I have the same antenna and I'm also using it inside. Mine is on a cookie sheet for a ground plane but it still doesn't receive like I expected it would. Did you just peel off the plastic undercoating on the bottom of the magnet side and that was it?

Thanks
__________________
PSR600/PSR500/PSR410/PRO106x2/PRO197x3/PRO2096/BCD996T/BC796D
BCT15X/BC898T/HP-1/BC210XLT
Feeds: http://www.radioreference.com/apps/account/?tab=la
Reply With Quote
  #5 (permalink)  
Old 01-29-2013, 11:40 AM
RonnieUSA's Avatar
Member
  Shack Photos
Shack photos
Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2005
Location: Rowan County,KY (Morehead)
Posts: 944
Default

Quote:
Originally Posted by NYRHKY94 View Post
Hi Ronnie:

I have the same antenna and I'm also using it inside. Mine is on a cookie sheet for a ground plane but it still doesn't receive like I expected it would. Did you just peel off the plastic undercoating on the bottom of the magnet side and that was it?

Thanks
Yes, and it works so much better.
I'm happy now.
__________________
Radio Shack Pro-197 - Uniden BCT15X
Win500 - ARC500 - FreeScan - ARC-XT-PRO - ID Tracker III
Reply With Quote
Sponsored links
  #6 (permalink)  
Old 01-29-2013, 2:13 PM
NYRHKY94's Avatar
Member
  Audio Feed Provider
Audio Feed Provider
 
Join Date: Mar 2006
Location: New Hampshire
Posts: 1,117
Default

Thanks. I'll give it a try myself and see what results I get.
__________________
PSR600/PSR500/PSR410/PRO106x2/PRO197x3/PRO2096/BCD996T/BC796D
BCT15X/BC898T/HP-1/BC210XLT
Feeds: http://www.radioreference.com/apps/account/?tab=la
Reply With Quote
  #7 (permalink)  
Old 02-07-2013, 4:41 PM
Richardneu316's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jun 2010
Location: Peebles Ohio
Posts: 128
Default

hey i did that to mine and it works better Thanks 4 the info
__________________
GRE PSR 600
IN GOD WE TRUST! EVERYONE ELSE,WE MONITOR.....
MONIXWeb http://sharedhosting.siscom.net/~mmeec/monix.html
Reply With Quote
  #8 (permalink)  
Old 02-07-2013, 4:44 PM
Richardneu316's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jun 2010
Location: Peebles Ohio
Posts: 128
Default

Quote:
Originally Posted by RonnieUSA View Post
I bought one of these several months ago, and I'm not impressed by it, it receives no better than the back of the set antenna that came with the scanner.
I live in an apartment, and can't put up an outdoor antenna.
My question is, I got my ohm meter out, and was checking the connections to make sure there were no breaks, the center connection is fine, but there is no connection between the outer sleeve, and the magnet.
Is this normal? If so how do You get the ground plane affect with this antenna?

Update:

I fixed the problem by taking off the plastic cover over the magnet, now there is a connection, and working the way I thought it should.
I guess the plastic was not letting it ground just right, at least not for me.

So problem solved.
i just done mine the same way and it works way better thanks for the info
__________________
GRE PSR 600
IN GOD WE TRUST! EVERYONE ELSE,WE MONITOR.....
MONIXWeb http://sharedhosting.siscom.net/~mmeec/monix.html
Reply With Quote
  #9 (permalink)  
Old 02-07-2013, 4:45 PM
RonnieUSA's Avatar
Member
  Shack Photos
Shack photos
Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2005
Location: Rowan County,KY (Morehead)
Posts: 944
Default

Quote:
Originally Posted by Richardneu316 View Post
i just done mine the same way and it works way better thanks for the info
Your very Welcome.
__________________
Radio Shack Pro-197 - Uniden BCT15X
Win500 - ARC500 - FreeScan - ARC-XT-PRO - ID Tracker III
Reply With Quote
Sponsored links
  #10 (permalink)  
Old 02-11-2013, 8:14 PM
lost_in_maine's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jan 2007
Location: Western Maine Mountains
Posts: 224
Default

Maybe a dumb ? what did you use to remove the plastic? just pry it off with a screwdriver?..looked at mine today, didn't get far with my fingernails...
__________________
HP-1 Extreme
BCD-396XT - BCD-396T - PRO-96 - BC9000XLT
ScanTenna - Diamond - Discone-Grove - Scanner Beam
www.wirebridgeweather.com APRSWXNET http://www.findu.com/cgi-bin/wxpage.cgi?DW1694
Reply With Quote
  #11 (permalink)  
Old 02-11-2013, 8:38 PM
RonnieUSA's Avatar
Member
  Shack Photos
Shack photos
Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2005
Location: Rowan County,KY (Morehead)
Posts: 944
Default

Quote:
Originally Posted by lost_in_maine View Post
Maybe a dumb ? what did you use to remove the plastic? just pry it off with a screwdriver?..looked at mine today, didn't get far with my fingernails...
I used my pocket knife, just got a small corner loose, and it came up easy.
I just wasn't getting a good ground with it on there.
Works much better now.
__________________
Radio Shack Pro-197 - Uniden BCT15X
Win500 - ARC500 - FreeScan - ARC-XT-PRO - ID Tracker III
Reply With Quote
  #12 (permalink)  
Old 02-11-2013, 8:41 PM
Richardneu316's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jun 2010
Location: Peebles Ohio
Posts: 128
Default

that is how i did my to RonnieUSA and it Works Better
__________________
GRE PSR 600
IN GOD WE TRUST! EVERYONE ELSE,WE MONITOR.....
MONIXWeb http://sharedhosting.siscom.net/~mmeec/monix.html
Reply With Quote
  #13 (permalink)  
Old 02-11-2013, 8:49 PM
lost_in_maine's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jan 2007
Location: Western Maine Mountains
Posts: 224
Default

Thanks..Will try that tomorrow....
__________________
HP-1 Extreme
BCD-396XT - BCD-396T - PRO-96 - BC9000XLT
ScanTenna - Diamond - Discone-Grove - Scanner Beam
www.wirebridgeweather.com APRSWXNET http://www.findu.com/cgi-bin/wxpage.cgi?DW1694
Reply With Quote
  #14 (permalink)  
Old 02-11-2013, 8:51 PM
Richardneu316's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jun 2010
Location: Peebles Ohio
Posts: 128
Default

It made. Mine work a lot better
__________________
GRE PSR 600
IN GOD WE TRUST! EVERYONE ELSE,WE MONITOR.....
MONIXWeb http://sharedhosting.siscom.net/~mmeec/monix.html
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 3:24 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2013, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2011 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions