How to Build a 433Mhz Band QFH Antenna With Free 3D Files

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In this video we take a look at #howto #build a #QFH antenna for the  @tinygs  and  @SatnogsOrgProject  #communities, this #433mhz band antenna is a custom dielectrically loaded antenna which is the reason for its size reduction. this is a wanted attribute since some opperators do not have to option to install large antenna's outside the homes.

This is the first in a series of antenna's aimed at the Satellite tracking community and will be a work in progress untill the prefect option is found.

Community to track Satellites

tinygs.com

Files are made available on thingverse.

1) ThingVerse STL Files https://www.thingiverse.com/thing:5878204/files

2) QFH Calculator used http://jcoppens.com/ant/qfh/calc.en.php

Amazon links

1) Coax RG316 https://amzn.to/3Syml7N

2) SMA Connectors and Crimper https://amzn.to/3ISZoce

3) Copper Tubing https://amzn.to/3KB0cnr

Files and Calculators

Print the Files attached

and follow the amazon links to purchase the supplies needed or modify the files as you like and remix the design

Follow the step by step instructions in the video and be carefull! this takes some doing.

But if you do it right you may end up with an amazing and small antenna for its intended freqeuncy

Test your antenn on VNA tester to make sure your antenna will perform as intended

Note: Calibrate your VNA for the desire frequency and when possible always try test your antenna in its final location and with final coaxial cable