A-744, Add-On,Extend D.E. 30m or 40m,0,For A4S Save . This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. 7 MHz/10 MHz kit for A-4S ...

Find many great new & used options and get the best deals for Cushcraft 30m/40m Add-on Kit for A4s Antennas A744 at the best online prices at eBay! Free shipping for many products!

2008年2月15日 · 类似a3s/a4s的trap天线，和类似c4s的full size天线，它们之间的区别不是dbd的问题，也就是说，不是单纯按增益的问题来衡量，这是一个理念的问题，甚至，天线的外形对邻居的心理压力，也可以作为一个考虑.....

2025年1月20日 · 7 MHz/10 MHz kit for A4S. Modifications void your warranty (especially radio MARS/CAP modifications).

2018年5月11日 · 7 MHz/10 MHz kit for A4S Kits include high power traps with heavy wall fiberglass insulator and all hardware. A simple adjustment allows 30 meter operation.

CUSHCRAFT A-744 adds 40 or 30 Meter Operation for A3S or A4S Antennas. It's an easy to assemble device that will help you to extend the driven element on A3S or A4S to resonate on 30m or 40m (chosen at set up time) while maintaining 47 ft. operation on 10/15/20m, all using a single feed point.

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7 MHz/10 MHz kit for A-4SKits include high power traps with heavy wall fiberglass insulator and all hardware. A simple adjustment allows 30 meter operation. Key Specifcations A744 (40m) A744 (30m) Band 7 MHz (40m) 10 MHz (30m)

Add 40 or 30 meter coverage to your Cushcraft A3S or A4S Tri-Band Beam Antenna with a Cushcraft 40/30 Add-On Kit. These kits provide all of the parts required to modify your Cushcraft Tri-Bander to also operate as a rotatable dipole on either 40 meters or 30 meters, as chosen for your modification.