The Sennheiser A 5000 CP circularly polarized antenna now features stronger materials for increased durability. Upgrades include a rigid dome that is nearly 400% stronger than the previous version, taking more than 67lbs of pressure to depress the dome one inch. Internal element supports are also now five times stronger, and the contact surface is three times stronger. A sticker on the rear of the antenna that shows bandwidth, gain, and polar pattern for customer use and alignment. The antenna itself offers 8dB of passive forward gain.
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