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antennas [2012/06/02 01:39]
roklobsta [Antennas]
antennas [2012/10/07 22:16] (current)
roklobsta [Cable]
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 "Buy a $10 radio and a $100 antenna"​ - Old ham radio saying. "Buy a $10 radio and a $100 antenna"​ - Old ham radio saying.
  
-The stock antenna supplied with the dongles is pretty hopeless. ​ It is strongly recommended that a purpose built or purchased antenna is used and placed outside and as up high as possible.+The stock antenna supplied with the dongles is pretty hopeless. ​ It is strongly recommended that a purpose built or purchased antenna is used and placed outside and as up high as possible.  This is to get as much signal as possible and also get the antenna away from bad sources of interference - a laptop, PC and plasma and LCD screens will definitely create a lot of unwanted noise across the whole spectrum.
  
 ==== Cable ==== ==== Cable ====
-  * RG6 [[http://​www.accesscomms.com.au/​specs/​y8040spec.pdf|Quadshield]]: ​ This cable is cheap and fairly ubiquitous as it's very good cable for digital TV and satellite receivers (and by extension RTLSDR). ​ The connectors (so called '​F'​ type) are very easy to attach and also cheap. ​ RG6 is 75ohms but for the purposes of RTLSDR don't get hung up on using more expensive 50ohm cable as there is negligible difference (0.2dB) in reception levels.+  * RG6 [[http://​www.accesscomms.com.au/​specs/​y8040spec.pdf|Quadshield]]: ​ This cable is cheap and fairly ubiquitous as it's very good cable for digital TV and satellite receivers (and by extension RTLSDR). ​ The connectors (so called '​F'​ type) are very easy to attach and also cheap. ​ RG6 is 75 ohms and try to keep all the connectors and adapters at 75 ohms too.
   * [[http://​www.matchmaster.com.au/​_literature_63957/​How_to_add_%E2%80%98F%E2%80%99_Connector_to_RG6_Quadshield_Cable|Here]] is a description of how to fit an F connector to RG6.   * [[http://​www.matchmaster.com.au/​_literature_63957/​How_to_add_%E2%80%98F%E2%80%99_Connector_to_RG6_Quadshield_Cable|Here]] is a description of how to fit an F connector to RG6.
   * [[http://​www.satcure.co.uk/​accs/​page7.htm|F to TV/​Belling-Lee and MCX]] adapters are readily available too.  They can be found very cheaply on eBay.   * [[http://​www.satcure.co.uk/​accs/​page7.htm|F to TV/​Belling-Lee and MCX]] adapters are readily available too.  They can be found very cheaply on eBay.
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   * D.I.Y. Discone: A homebrew [[http://​helix.air.net.au|pupose built]] discone for RTLSDR.   * D.I.Y. Discone: A homebrew [[http://​helix.air.net.au|pupose built]] discone for RTLSDR.
-  * This is an example ​for a manufactured [[http://​www.benelec.com.au/​pdf/​02674%20Data%20Sheet.pdf|discone]].+  * This is an example ​of a manufactured [[http://​www.benelec.com.au/​pdf/​02674%20Data%20Sheet.pdf|discone]].
  
 The RTLSDR dongle is a digital TV receiver so the following antennas will work if you are stuck in the short term. The RTLSDR dongle is a digital TV receiver so the following antennas will work if you are stuck in the short term.
antennas.1338593940.txt.gz ยท Last modified: 2012/07/03 14:19 (external edit)