Difference between revisions of "Turnstile Antenna"
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| − | [[File:Turnstile Antenna.png|right|thumb| | + | [[File:Turnstile Antenna.png|right|thumb|Turnstile Antenna]] |
=Turnstile Antenna for VHF= | =Turnstile Antenna for VHF= | ||
==Description== | ==Description== | ||
| Line 14: | Line 14: | ||
==Milestones / ToDo== | ==Milestones / ToDo== | ||
* Come up with a proper design | * Come up with a proper design | ||
| − | * Calculate | + | * Calculate delay line stub |
==Photos== | ==Photos== | ||
==Resources== | ==Resources== | ||
| Line 21: | Line 21: | ||
==Whiteboard== | ==Whiteboard== | ||
<pre> | <pre> | ||
| − | Circular polarization notes: Point of view is the source and '''not'' the receiver. To achive this, the "delayed" dipole should be the one ''ahead'' of the directly fed, when viewing from the bottom of the antenna and moving clockwise. | + | Circular polarization notes: |
| + | * Point of view is the source and '''not'' the receiver. | ||
| + | * To achive this, the "delayed" dipole should be the one ''ahead'' of the directly fed, | ||
| + | when viewing from the bottom of the antenna and moving clockwise. | ||
</pre> | </pre> | ||
[[Category:Projects]] | [[Category:Projects]] | ||
Latest revision as of 13:23, 3 July 2013
File:Turnstile Antenna.png
Turnstile Antenna
Contents
[hide]Turnstile Antenna for VHF
Description
A simple turnstile antenna for satellite VHF reception.
Log
Specifications
- Polarization: Right-handed circular
- Frequency: ~137MHz
- Impedance: 75Ω
Materials
- 6mm dia. threaded rods
- PVC tubing
- RG-59 cable
Milestones / ToDo
- Come up with a proper design
- Calculate delay line stub
Photos
Resources
Team
Whiteboard
Circular polarization notes:
* Point of view is the source and '''not'' the receiver.
* To achive this, the "delayed" dipole should be the one ''ahead'' of the directly fed,
when viewing from the bottom of the antenna and moving clockwise.
