The CHA WINDOM 40 antenna is designed for 40m, 20m & 10m. A tuner may be needed to tune the other bands between 80M and 6M. Power handling is 250W SSB. Built with the portable user in mind. Very light weight. Does not require an antenna tuner under normal circumstances. SWR is < 2:0 (Typically a 1:3 to 1:6 ) at about 35′ to 45′. The antenna SWR is influenced by the balun elevation, wires angle, feed-line length and structures proximity.
The following SWR chart shows the SWR curves of the CHA WINDOM 40 elevated at about 10′ of elevation and installed in an inverted “V” configuration. A RigExpert AA-520 and a 50′ long RG-8X coax cable were used. The SWR will be influenced by the antenna elevation, the angle between the two legs and by the coax length and type.
Antenna total length is 66′. Antenna wire elements are #16 proprietary stranded wire (short side is 22′ (6.7m) long and longer side is 44′ (13.4m) long). Built with a 5:1 250W SSB balun mounted on a polycarbonate plate. A 10’ of paracord 550 has been added at each ends of the antenna and another 20’ to secure the balun.
Frequency: 6M – 40M
Power: 100W CW or 250W SSB
RF Connection: SO-239
The antenna system consists of:
1 X CHA WINDOM 40
1 X ANTENNA PORTABLE POUCH
4O3A Signature Division of Sky Sat Communications Releases v3 Firmware and Windows App For TCP/IP-Enabled Antenna Genius Product Line Igalo, Montenegro & Grand Junction, Colorado – September 19, 2015 – Sky Sat Communications... Read more
AAVoice v1.4.6 A digital voice processor for amateur radio operators. It uses prepared wav-files for transmission. If necessary you can use sim... Read more
“In January of 2019 I had the prviledge to travel to the set of Last Man Standing, the hit TV series on the Fox Network, where Mike Baxter, a ru... Read more
The Directors of Yaesu Japan were so intrigued by the unique buyer advantages Europe’s Ham Store offers to its customers, they just had to come... Read more