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== | ||
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==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== | ||
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.
