Differences

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--- en:antennas [2019/04/18 14:39] – fluktuacia
+++ en:antennas [2019/04/21 14:51] – [Plastic 1/4 lambda GroundPlane] fluktuacia
@@ Line 2: / Line 2: @@
 ====== Antennas for Bolidozor network ======
-Antenna is the first signal input to a [[en:rmds|radio detection sattion]]. It is therefore necessary not to neglect its choice as a signal that is not received cannot be processed. A typical radio antenna receives not only meteor reflections, but also other radio signals - thus, the location of antenna is of high importance and should be chosen carefully. Suitable antenna characteristics can make the choice of location easier and can improve the overall antenna gain. Advantageous are following parameters:
+Antenna is the first signal input to a [[en:rmds|radio detection station]]. It is therefore necessary not to neglect its choice as a signal that is not received cannot be processed. A typical radio antenna receives not only meteor reflections, but also other radio signals - thus, the location of antenna is of high importance and should be chosen carefully. Suitable antenna characteristics can make the choice of location easier and can improve the overall antenna gain. Advantageous are the following parameters:
-  * Sensitivity in the upper hemisphere with respect to observation site.
+  * Sensitivity in the upper hemisphere with respect to an observation site.
   * High efficiency.
   * Insensitivity to signal linear polarisation angle.
-  * Suppression of unwanted signals reception from vely low elevations (usually ground noise).
+  * Suppression of unwanted signal reception from very low elevations (usually ground noise).
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 {{:cs:antennas:bolidozor_gp_antenna_mount.jpg?600|}}
-It represents the basic antenna, currently used on most of our stations. It has an advantage of having small size and it is thus not difficult to install it on balcony, terrace, etc. Equally important is its relatively primitive design which allows for an easy construction suitable for beginners.
+It represents a basic antenna, currently used on most of our stations. It has an advantage of having a small size and it is thus not difficult to be installed on balcony, terrace, etc. Equally important is its relatively primitive design which allows for an easy construction suitable for beginners.
-A disadvantage is a low gain and a a radiation characteristic that has a sharp zero in zenith (meaning a very bad detection of meteors flying over the observation site, causing, subjectively, a big difference compared to visual observation).
+A disadvantage is a low gain and a radiation characteristic that has a sharp zero in zenith (meaning a very bad detection of meteors flying over an observation site, causing, subjectively, a big difference compared to visual observation).
 [[en:gpant|A more detailed description]].