Availability
MFJ Antennas
MFJ Vertical Antennas
MFJ Vertical Antennas cover a wide variety of needs and frequencies. Vertical antennas were literally invented by Guglielmo Marconi, the great Italian physicist and radio pioneer, in about 1905. In fact, the word "antenna" is derived from the Italian word for a pole. Vertical antennas have been under constant development ever since their invention. Vertical antennas may be found everywhere. Most commonly, a steel element used as an external car-radio antenna is a form of a vertical antenna. Commercial AM radio broadcasts are originated by towers called mast radiators. These antennas are very large towers that are insulated at the base. This allows the entire length of the tower to become the transmit element for the radio station. MFJ's Amateur Radio vertical antennas may cover a single frequency-band, as in a 10-meter ground plane, or several bands, as in their MFJ-2990 multi-band vertical antenna. The advent of automatic antenna tuners has led to the development of non-resonant multi-band verticals, like their MFJ-2990, which are very frequency-agile and efficient. Many people have concerns about limited space or other antenna restrictions. For these folks, MFJ's long-wire antennas, dipoles, Yagis, and other large-footprint antennas may be impractical. In these applications, an MFJ vertical antenna, with their typically tiny footprint, is probably the best solution. Whether you need a single-band vertical antenna or an antenna to cover many bands with great frequency-agility, you'll find MFJ Vertical Antennas from DX Engineering to suit any need!
( 10 )
$179.95
MFJ Rhinos Antenna Switches
MFJ Rhinos antenna switches have a gold plated flange and connector contacts that provide low VSWR and low insertion loss. A rock-solid, sturdy diecast design provides excellent isolation performance up to 70 dB isolation. These switches are built like a rhino--tough inside and out! A superior internal design lets them work for you for a long life span. The MFJ Rhinos antenna switches handle power up to 2 kW, with an operating frequency range from DC to 1 GHZ with less than a 1.10:1 SWR. Their super-compact size and pre-drilled mounting holes let you put these Rhinos antenna switches anywhere. Available in SO-239 and Type N connections. Additional features include: * Power rating 0-30 MHz: 2 kW * Power rating 30-200 MHz: 1 kW * Power rating 200-500 MHz: 500 W * Power rating 500-900 MHz: 250 W * Insertion loss 0-500 MHz: 0.05 dB minimum * Insertion loss 500-900 MHz: 0.10 dB minimum * Output isolation 0-500 MHz: -70 dB minimum * Output isolation 500-900 MHz: -60 dB minimum * VSWR 0-500 MHz: 1.05:1 minimum * VSWR 500-900 MHz: 1.10:1 minimum
( 22 )
$69.95
MFJ Monoband Mobile HamTenna Whips
MFJ Monoband Mobile HamTenna Whips make HF mobile operating fun and easy! They're small, lightweight, efficient, and super-easy to use. Their dual feature of center and distributed loading lets you radiate efficiently... you get more power out for working DX and rag-chewing! Each antenna is ruggedly constructed from a heavy-duty, 4 ft. long, 3/8 in. diameter fiberglass rod. They also feature a nearly indestructible 0.125 in. diameter PH-17-7 stainless steel whip and chrome plated brass fittings that will give you years of dependable service. Their sleek, low-profile construction has low wind loading and their semi-rigid fiberglass eliminates the need for springs or guys. A black anti-static jacket protects the loading coil and blends in with any vehicle. The stainless steel whips are adjustable for lowest SWR and include an Allen wrench and complete tuning and matching instructions. They handle 250 watts PEP and depending on the model, they measure up to 7 ft. tall fully extended, and approximately 4 ft. tall when collapsed for easy storage. They simply screw into any 3/8 x 24 in. female mount for quick band-changing! MFJ HF Monoband HamTenna whips are available for 10, 15, 17, 20, 30, 40, and 75 meters. Think about the durable construction, efficiency, and easy band-switching that these antennas provide, and then call DX Engineering today for one of these MFJ Monoband Mobile HamTenna Whips!
( 89 )
$29.95