- Original document for the popular CJU satellite antenna, the Canary Jail Umbrella by EA4CYQ. This is a handheld antenna that permit UHF VHF operations suitable for satellite contacts. PDF in spanish.
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The CJU Antennanew
- A sat antenna that can be easily built with a 4mm diameter aluminium rods and a small PVC pipe. This antenna allow UHF VHF usage and can be a valid portable sat antenna, project by DF3FX