The 900MHz radio band is a relatively new range of frequencies for the amateur radio hobbyist. The 900MHz spectrum affords the ham radio operator freedom to experiment with various applications and devices because of its novelty and shorter wavelength. Build this simple omnidirectional antenna designed for the 902 to 928MHz range, and tune to a new frontier in ham radio.
- Skill level:
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Things you need
- Coaxial cable, RG-58, 3 feet
- Electrical tape
- Utility knife
- Coaxial cable crimping tool
Strip 3 1/16 inches of the outer plastic sheath from one end of the coaxial cable, without cutting through the inner braided sheath. Pull the braided sheath back and down over the cable. The plastic insulation can remain on the inner copper wire.
Stretch the braided sheath down over the cable 3 1/16 inches, and tape the braided sheath to the cable. The braided sheath and the inner copper wire should be the same length, extending in opposite directions.
Crimp a connector to the opposite end of the cable appropriate for your radio receiver's external antenna jack. Plug the antenna into your receiver.
Tips and warnings
- For added stability, mount your antenna to a length of PVC pipe using non-conductive cable mounting clips.
- For added range, use a longer length of RG-58 cable.
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