Cushcraft A270-6S

Name: Cushcraft A270-6S
Brand: Cushcraft
SKU: ZCC-A2706S
Price: 199.95 USD
Availability: OutOfStock
Rating: 40 (1 reviews)

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SKU: ZCC-A2706S

Availability:

Out of stock

This item is currently out of stock with no available ETA. We will not be accepting orders until the item is back in stock or once a reliable ETA is available.

Description

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Customer Reviews

Overall

Works poorly on 70 cm

Review by Steve

The two bands covered by this antenna, 2m and 70cm, are harmonically related by a factor of three. The designers chose to use a simple T connection on the feed harness instead of a true diplexer. As a result, when you excite on 70cm, the 2m antenna (third harmonic) also accepts power. But the pattern of the 2m antenna on 70cm is multi-lobed and scatters signal in unwanted directions. This distorts the pattern and lowers the on-axis gain on 70cm. Performance can be improved somewhat by substituting a diplexer for the T connector but then the SWR on both antennas detune. Readjusting the gamma matches only partially works.