Ameritron ATR-20 Antenna Tuners are versatile, high-power antenna tuners. The ATR-20’s roller inductor “T” matching network continuously tunes all frequencies from 1.8 through 30 MHz. They also feature a built-in 3-kilowatt peak or average directional power meter. ATR-20s have convenient connectors for coaxial and wire feed lines. A heavy duty, high-voltage insulated, current-type balun allows use with balanced feed lines.
Properly tuned, these ATR-20 tuners safely operate on all bands with RF power levels of 1.2 kilowatts SSB and 600 watts CW. They will handle load impedances from 25-800 ohms. Their matching range also extends from one ohm to 2500 ohms (5 ohms to 500 ohms on 160 meters) at slightly reduced power ratings. Peak and average forward power, reflected power, and SWR are displayed on an illuminated cross-needle meter.
An internal six-position antenna selector switch allows selection of three coaxial line outputs, or a single wire-line balanced-line output. Two coaxial line outputs, ANTENNA 1 and 2, are available in either “tuned” (with tuner’s matching network in line) or “direct” (no matching circuit) configurations.
Coaxial output port ANTENNA 3 is available only as a direct (no matching system) configuration. WIRE/BALANCED LINE positions are available only as “tuned” configurations.
Antenna Tuner Location:Desktop
Tuner Maximum Power Rating:1,200 watts
Frequency Range:1.8-30 MHz
Tuner Inductor Type:Roller
Tuner Control Type:External
Internal Balun Type:Current
Notes:Rated for 600 watts continuous carrier power on load impedances from 35 to 500 ohms. Wider tuning range is covered at slightly reduced power levels.
“We demonstrate the two major new features of the latest version of Yaesu’s “991” series, the FT-991A. Watch the colour screen... Read more
Features The RK-3xx series of switches uses vacuum relays. It is designed to switch coaxial lines in RF systems operating up to 5 kW continuous... Read more
Radio ham finds signal from ‘dead’ NASA satellite Scott Tilley VE7TIL / VA7LF discovered a signal from the IMAGE satellite that NASA lost... Read more
HyEndFed 5 band for 80,40, 20, (15) and 10 meter. Max. Power : 200 watt PEP. Length : 23 meter. Enclosure : Polycarbonate IP67, 100% UV resista... Read more
The support structure of the Light Beam Plus Antenna series is very different from that of any other antenna that is currently on the market. M... Read more
AMSAT-UK reports that four CubeSats will comprise the BIRDS (Joint Global Multi-Nation Birds) constellation, which is set to deploy from the Internati... Read more
“Dear OM’s! In the second half of july the group of HAM’s, members of Russian Robinsons Club is planing expedition to Barents... Read more
“Here some images of the damage that Hurricane Maria did. The roof of my garage is completely gone, a tower collapsed and all the antennas are b... Read more
This video is targeted towards new HF operators who are getting on the air for the first time. It discusses some of the abbreviation used on the HF ba... Read more
MixW is a multi mode multi functional software for every day logging and Contests. It has many useful features that make your QSO logging proce... Read more
“We are pleased to announce that S79HN will be active from July 16th to 20th on 6-40m, CW/RTTY/SSB, by the operators listed below. Jim, 7K4QOK/K... Read more
Peter Waters G3OJV at Europe’s Ham Radio Store takes a first look at the IC-R30 which is expected in the first half of 2017. ... Read more
IC-7300 tax selling price ¥ 128,000! Reservations accepted start! If CQ ohm Read more