RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > Scanners, Receivers and Related Equipment Forums > Antennas and Associated Hardware > Coax Cable and Connectors


Coax Cable and Connectors - For general discussion of all things pertaining to coax cable, wave guide or any other medium for passing RF energy. This includes connectors, weather proofing and grounding.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 02-26-2018, 8:59 AM
Jimbo695's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jan 2010
Location: Hauppauge NY
Posts: 184
Default Flat Coax Connector

Hello, folks. I need to run my dual band base unit from the basement to an outdoor antenna without running the coax through three floors and a wall. I also don't want to drill through the foundation or a metal window frame. I've seen a "flat" coax connector 20 cm, SMA both ends, that allows a window to close down on it presumably without compromising the signal. Sounds like the answer but I was hoping for a few opinions. Thanks!!
Reply With Quote
Sponsored links
  #2 (permalink)  
Old 02-26-2018, 10:18 AM
Member
  Premium Subscriber
Premium Subscriber
Amateur Radio Operator
Amateur Radio
 
Join Date: Jun 2007
Location: Grandview, TX
Posts: 389
Default

Please show a link address to that "flat coax connector" that you saw. THAT is something NEW to me! I personally use one of the MFJ pass-through window boards.
Reply With Quote
  #3 (permalink)  
Old 02-26-2018, 10:21 AM
Jimbo695's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jan 2010
Location: Hauppauge NY
Posts: 184
Default

https://www.data-alliance.net/flat-s...BoCaNEQAvD_BwE

Thanks!
Reply With Quote
  #4 (permalink)  
Old 02-26-2018, 10:29 AM
iMONITOR's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Sep 2006
Location: MACOMB, MI.
Posts: 6,814
Default

Coax Pass-Through
https://www.universal-radio.com/catalog/antsup.html
Reply With Quote
  #5 (permalink)  
Old 02-26-2018, 10:46 AM
jonwienke's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jul 2014
Location: PA
Posts: 8,865
Default

I wouldn't use the flat thing. Even if it can withstand being repeatedly closed in the window without damage, it's going to damage the weather seal on the window. Just don't.
__________________
Uniden scanner internal GPS installations--making mobile scanning work the way it always should have.
Reply With Quote
Sponsored links
  #6 (permalink)  
Old 02-26-2018, 12:01 PM
mule1075's Avatar
Member
  Audio Feed Provider
Audio Feed Provider
 
Join Date: Jan 2003
Location: Washington Pa
Posts: 2,494
Default

Quote:
Originally Posted by jonwienke View Post
I wouldn't use the flat thing. Even if it can withstand being repeatedly closed in the window without damage, it's going to damage the weather seal on the window. Just don't.
Been using one for years no damage at all to the seal.
__________________
Uniden SDS100/780XLT Motorola HT1000/GM360 Whistler TRX-1
Reply With Quote
  #7 (permalink)  
Old 02-26-2018, 2:16 PM
Member
  Amateur Radio Operator
Amateur Radio
 
Join Date: Jul 2014
Location: Newnan, GA
Posts: 240
Default

Diamond and Comet both make one with standardSo-239 connectors. The power limit is 60 W VHF and 40 W UHF on the Comet, Diamond about the same.

Frank KK4YTM
Reply With Quote
  #8 (permalink)  
Old 02-26-2018, 6:15 PM
Member
   
Join Date: Nov 2014
Posts: 806
Default

You find a piece of 1x2 lumber, or PVC trim, or any decent material that you can insert on the windowsill and shape or add weatherstripping, whatever, to get a good seal. With many windows you can just use a piece of 1x2 and put a felt weatherstrip in top and bottom.

Then you take the strip out, drill a hole in it, and insert a BULKHEAD CONNECTOR which is basically a one or two or four (etc) inch long piece of UHF double-female fitting. Put the bulkhead conenctor in the hole, tighten the nut on each side, put the strip back in the window. End of problem.

Or, you get a drill (an impact drill if you've got concrete walls) and just drill a hole through the wall and put in an 8" long bulkhead connector, with caulking at both side. The professional way to do it, without needing to mess with the window locks.
Reply With Quote
  #9 (permalink)  
Old 02-26-2018, 6:23 PM
jonwienke's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jul 2014
Location: PA
Posts: 8,865
Default

Quote:
Originally Posted by mule1075 View Post
Been using one for years no damage at all to the seal.
I suspect you'll have leakage when you remove the flat cable. Shutting things in windows and doors generally makes a crease in the gasket.
__________________
Uniden scanner internal GPS installations--making mobile scanning work the way it always should have.
Reply With Quote
  #10 (permalink)  
Old 02-26-2018, 6:27 PM
Member
   
Join Date: Aug 2013
Posts: 158
Default

Quote:
Originally Posted by jonwienke View Post
I suspect you'll have leakage when you remove the flat cable. Shutting things in windows and doors generally makes a crease in the gasket.
Meh, easily replaced.
Reply With Quote
  #11 (permalink)  
Old 02-27-2018, 3:01 AM
Member
   
Join Date: Sep 2006
Location: Stockholm, Sweden
Posts: 1,709
Default

I have four of them with F connectors in use for satellite dish, terrestial tv and scanner. They attenuate some 2-3dB and the impedance is way off.

They don't last forever as I think it is aluminum foil with an insulated wire inside and the insulation probably wears off. If I open a window once a day it usually begins to act up after 2-3 years and have to be replaced. But that's 1000 times so it might not be bad for a $5 item.

/Ubbe
__________________
TRX-2 BCD536 HP1 BCT15 BC246 BC346 BR330 UBC3500 Pro2006 Pro2042 Optocom OS545 Scout PCR1000 ICR2500 IC75 DX394 AR8200 IC-R2 IC-R10 UBC780 MD380 CS580 CS750 Pro96 Perseus ADCR25 AcecoSC1plus RTL-SDR
Reply With Quote
  #12 (permalink)  
Old 02-27-2018, 3:59 AM
jonwienke's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jul 2014
Location: PA
Posts: 8,865
Default

Quote:
Originally Posted by Ubbe View Post
I have four of them with F connectors in use for satellite dish, terrestial tv and scanner. They attenuate some 2-3dB and the impedance is way off.
2-3dB is a lot of loss for a coax connector. A standard passthrough connector would have a small fraction of a dB worth of loss.
__________________
Uniden scanner internal GPS installations--making mobile scanning work the way it always should have.
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 10:41 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2015 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions