I'm thinking of building a simple radio beacon and direction finder. This would be a backup locater for my high altitude balloon hobby
From my quick reading on wikipedia it seems like a loop antenna might work:
Assuming I used a FRS or GRMS radio I would need to hack the antenna on one of the radios to a 2.5 inch loop - Frequency Wavelength Calculator
From the radio post below I was thinking:
Given the 25 inch wavelength --
Take a PVC pipe with at least a 25 inch diameter
Put a cap on one end and some RF shielding on the outside
Place my receiving radio inside the tube and in theory I would get reception only when pointed at the beacon?
Thoughts?
From my quick reading on wikipedia it seems like a loop antenna might work:
Assuming I used a FRS or GRMS radio I would need to hack the antenna on one of the radios to a 2.5 inch loop - Frequency Wavelength Calculator
From the radio post below I was thinking:
Given the 25 inch wavelength --
Take a PVC pipe with at least a 25 inch diameter
Put a cap on one end and some RF shielding on the outside
Place my receiving radio inside the tube and in theory I would get reception only when pointed at the beacon?
Thoughts?
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