Liebe Leser,
unser Vereinsmitglied Martin, DF6MH, ein Gipfelstürmer der Extraklasse hat sich viel Arbeit bei der Entwicklung einer besonders leichten und zerlegbaren Yagi-Antenne für den Rucksacktransport gemacht.
Im veröffentlichen Bericht (Link zum Bericht) dazu sind die Details beschrieben.
Hier noch einige Daten:
Electrical design after DK7ZB, 2m boomlength, 6-Element, 9 dBd gain, 2 m VHF band. • Lightweight due to fiberglass construction. Total weight is 500 grams including 4 m of RG-316 coax cable. •
Fast deployable due to “tent pole” design. Elements are tighten together by rubber cords. No elements can be lost, no element sorting required. Assembly and disassembly requires 2 minutes, even with heavy gloves. No tools are required to set up the antenna. •
Very compact, collapsed length is less than 65 cm. • Low wind load which improves stability and reduces requirements on the supporting pole. • Quite robust due to durable fiberglass construction. • Perfect for SOTA and other portable use. •
No low-cost solution, material cost per antenna is around 40 Euros. • Manufacturing the antenna requires no special tools but some patience and takes 4 – 6 hours.
