Shielding Wires, as in the actual Core Wire, not the Insulation Plastic, thingy magic that protects the wire. The Actual inside of the cable? Sorry but im a big noob when it comes down to stuff like this.[
]
]-
Join the MyBroadband community
South Africa’s biggest forum. Discuss, discover, and connect with thousands of members.
-
Question of the Day: What's the most interesting small town you've visited in South Africa?
Question about Cantenna / Patch Antenna
- Thread starter KemoSabi
- Start date
ajax
Executive Member
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Just re-check the seating of the cable. I found that if my shielding wires do NOT make contact connection is rather "off".
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
Yes. If the shielding wire (or braid or outside conductor) is left floating (i.e. not soldered/connected to the can) the impedance of the connection will be floating resulting in loss of signal (you might get lucky now and then and it may actually still work pretty well). The cantenna is an antenna - all antennas have the braid connected to "ground" of the antenna.
If the quality of the cable is good, it won't matter if noise or other unwanted signals gets onto the shielding wire. But I can not speak for the modem, if the unwanted signal/noise on the shield somehow couples through to the center conductor, yes, it will degrade your signal. In the Electromagnetic Compatibility circles this unwanted "feature" of cables to let the unwanted signal on the braid couple through the center conductor is called transfer impedance. This is another reason not to use cheap cables (apart from the fact that cheap cables are lossy).
Ajax
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
Yes. If the shielding wire (or braid or outside conductor) is left floating (i.e. not soldered/connected to the can) the impedance of the connection will be floating resulting in loss of signal (you might get lucky now and then and it may actually still work pretty well). The cantenna is an antenna - all antennas have the braid connected to "ground" of the antenna.
If the quality of the cable is good, it won't matter if noise or other unwanted signals gets onto the shielding wire. But I can not speak for the modem, if the unwanted signal/noise on the shield somehow couples through to the center conductor, yes, it will degrade your signal. In the Electromagnetic Compatibility circles this unwanted "feature" of cables to let the unwanted signal on the braid couple through the center conductor is called transfer impedance. This is another reason not to use cheap cables (apart from the fact that cheap cables are lossy).
Ajax
MyDraadloos
Expert Member
My Booztenna is finaly finished .... things are so much easier when you have all the tools. Unfortunately the pigtail is sitting on my desk at the office.
Can't wait to test it, have a nice custom made connector with brass pin soldered on the top.
If it does not work it will drive me to drink ......... or Pringles
Package :256
Tower :36 Bedfordview
Signal : 11
S-N-L : 4
BER : 28%
Antenna : Patch - Batenna
Speedtest (Rodent): 138.6
Speedtest (int) : 79.2
Time of Test :20:02
Comments : Dang !
Pass the Pringles please !
Can't wait to test it, have a nice custom made connector with brass pin soldered on the top.
If it does not work it will drive me to drink ......... or Pringles
Package :256
Tower :36 Bedfordview
Signal : 11
S-N-L : 4
BER : 28%
Antenna : Patch - Batenna
Speedtest (Rodent): 138.6
Speedtest (int) : 79.2
Time of Test :20:02
Comments : Dang !
Pass the Pringles please !
[
]
<hr noshade size="1"><center><font color="blue">MyWireless Stuff</font id="blue">
<font size="1"><font color="black">The opinions expressed here are mine alone and do not necessarily reflect the opinions of my employer</font id="size1"></font id="black"></center>
]<hr noshade size="1"><center><font color="blue">MyWireless Stuff</font id="blue">
<font size="1"><font color="black">The opinions expressed here are mine alone and do not necessarily reflect the opinions of my employer</font id="size1"></font id="black"></center>