This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically designed for use with a tuner and amplifier. As a result, the antenna more accurately addresses the needs of the contemporary ham shack.
Multiband vertical antennas have always been complicated designs with components as likely to be damaged by high levels of mismatched transmit power as the rigs they are attached to. Before the use of tuners became widespread, the antenna was protected by the same safety mechanisms that protected the rig. Now, the automatic power reduction circuits of the past have actually become a second layer of protective circuitry. Although the auto-tuner provides the ham with a more versatile device as well as protecting the rig’s components, the antenna is more vulnerable than ever. With the press of a button, very high loads can be imposed on the antenna. The result to the antenna can be catastrophic failure in some instances.
Although the antenna is best operated within it’s 2.0:1 VSWR bandwidth,it can sustain a 3.0:1 VSWR mismatch at full power for typical operating intervals. Now radio amateurs can take full advantage of the versatility that a tuner used in conjunction with a multiband HF vertical antenna can give them. For high wind environments, add the R-8GK, Guy kit-three point non-conductive guy system.
$ 639.95 Each
By Zoe KleinmanTechnology reporter, BBC News TV signals use different parts of the radio spectrum to radar, but both bounce off solid objects. Using s... Read more
Frequency coverage RX 0.1–30MHz Frequency resolution 1Hz Dial step 1Hz to 1KHz Dual VFO Direct sampling 16bit high speed 122 M/s ADC Mode CW, SSB, AM,... Read more
Britain (RSGB) has taken issue with assertions by telecoms regulator Ofcom that the agency “advises and assists spectrum users to help resolve harmful... Read more
INTRODUCTIONThe United States Islands Awards Program, USI, covers saltwater and inland fresh water river or lake islands of the fifty (50) states of... Read more
Operational Bands 80 meters 40 meters 20 meters 15 meters 10 meters 6 meters 2 meters 70 centimeters Maldol HVU-8 Vertical Base Station Antenna... Read more
HS2 is an ultra-portable full-frequency full-mode SDR radio. Receive frequency coverage 300K~1.6GHZ. HS2 adopts a full keyboard design, built-in Bluet... Read more
The Grid and Prefix Award Program (GAPA) has announced the establishment of a comprehensive Digital Awards Program. Awards are available for radio ama... Read more
Ham Radio App If you’re a member of ARRL, the national association for Amateur Radio, install this app and have QST, the ARRL membership journal... Read more
“The next Kids Day, sponsored by the ARRL and The Boring (Oregon) Amateur Radio Club, will be Sunday, January 4, 2015, from 1800 to 2400 UTC. Th... Read more
Recent Posts
TV signals used to track aircraft as alternative to radar
The new Silphase R1 SDR receiver
RSGB Says Regulator Ofcom is Not Resolving Interference Complaints
U.S. Islands Awards Program
Maldol HVU-8 Vertical Base Station Antennas HVU-8
Ailunce HS2
Grid and Prefix Award Program Announces Digital Awards Program
Top 5 Ham Radio App
Kids Day is January 4!
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fcushcraft-r9-covers-61012151720304080-meters%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
