DX Engineering is a Major Sponsor of the January 2015 Navassa Island DXpedition, supplying the team with the new JK Antennas Navassa-5 Yagi Antenna—and it is available exclusively at DX Engineering.

JK Antennas Navassa-5 Multi-Band Yagis

In the spirit of the 2015 Navassa Island DXpedition, JK Antennas introduced a new five-band Yagi that packs a lot of performance into a relatively small size. That makes it is an ideal antenna for Amateur Radio operators looking to get active on the most popular HF bands, or Hams that want to upgrade from a tri-band trap antenna.

Based on a collaborative design by Dan Horvat E73M, the Navassa-5 places full-size elements along the same plane to pack 2-element monoband performance into a five-band antenna. Using just a single boom, the Navassa-5 provides impressive gain on the 10, 12, 15, 17 and 20 meter bands—all through a single run of coax cable. The compact antenna carries a 100 mph wind speed rating along with a mere 19.5 foot maximum turning radius.

More importantly, the antenna’s wide, flat VSWR curve means operators get excellent wideband performance. For additional band coverage, a optional Navassa-5 “Plus” 6 meter add-on kit is also available.

JK Antenna’s Navassa-5 Quick Specs:
Weight: 52 pounds (approx.)
Wind Area: 9.45 square feet
Gain (65′ above ground):

  • 12.6 dBi (10M)
  • 12.4 dBi (12M)
  • 11.8 dBi (15M)
  • 11.8 dBi (17M)
  • 11.4 dBi (20M)

See JK Antennas’ Navassa-5 and 6-meter Yagi add-on kit at DXEngineering.com:


DX Engineering

DX Engineering now carries Coaxial Dynamics SWR/Wattmeters – professional field meters now available for the Amateur Radio enthusiast.

For decades, Coaxial Dynamics has been well known to broadcast engineers, wireless network designers and communications professionals. Now, Amateur Operators can use high-precision Coaxial Dynamics meters in their own station. With a comprehensive line of wattmeters, there are units designed for practically every RF application. Depending on the meter, they can be used to measure peak/forward/reflected power, as well as directional RF power in either dB or Watts.

Coaxial Dynamics RF Peak Reading Wattmeters

Coaxial Dynamics RF Peak Reading Wattmeters at DX Engineering

The meters are shock-mounted in a virtually indestructible case, making them well suited to the field. They meet both the US Navy and Canadian standards for shock and vibration.

Operators can choose from Coaxial Dynamics meters with a traditional analog sweep display, or a large high-visibility LCD screen with LCD Directional RF Wattmeters. They come in multiple connector options and frequency ranges. Meters are also available with multi-range capability, selectable via a large front-panel knob.

DX Engineering also carries additional connector adapters, plug-in elements and other accessories to expand the functionality of the Coaxial Dynamics meters.



DX Engineering

WRTC 2014 World Radiosport Team Championship

DX Engineering provided every competing station in the WRTC 2014 its American-made Coaxial Cable Assemblies.

For 24 hours in July, the Amateur Radio community will focus on Westborough, MA as the World Radiosport Team Challenge 2014 gets underway. Dozens of two-person teams hailing from the furthest reaches of the planet will try to rack up as many contacts (QSOs) as possible.

DX Engineering is honored to support such an important competition. The company provided every competing station with its high quality, American-made Coaxial Cable Assemblies. It also is the exclusive dealer for the 2X Arrays TX38, which is The Official Tri-Band Antenna of WRTC 2014. To earn that title, this high performance Yagi antenna had its impressive gain and SWR verified in real-world operation.

2X Arrays TX38 Antenna

2X Arrays TX38 Antennas are the Official Tri-Band Antenna of WRTC 2014. DX Engineering is the exclusive dealer of the Antenna.

The WRTC 2014 committee also relied on DX Engineering’s technical advisors to solve significant problems, including an issue with the off-the-shelf power supplies originally delivered to the competing stations. The supplies generated significant radio frequency interference and proved inadequate for the WRTC competing stations.

DX Engineering worked with the WRTC 2014 Committee to create special power supplies specifically for the event. The custom-made WRTC 2014 Power Supplies will be available to the general public by the fall of 2014. The TX38 Antenna and DX Engineering Coaxial Cable Assemblies are available now.

Learn more about WRTC 2014.

Learn more about the 2X Arrays TX38 Antenna at DX Engineering.

Learn more about DX Engineering Coaxial Cable Assemblies.

DX Engineering

The MFJ-259C 530 KHz-230 MHz SWR Antenna Analyzer was just released!

The world’s most popular SWR/RF antenna analyzer is now even better, providing two frequency-range knobs for wider control. It includes all the features of the MFJ-259B, but expands frequency coverage to 530 KHz to 230 MHz, compared with 1.8 to 170 MHz for the MFJ-259B. This allows you to analyze 160M antennas in addition to MW (AM broadcast) and other shortwave frequencies.MFJ-259C Antenna Analyzer

The battery-powered analyzer combines four basic circuits: a 0.53-230 MHz variable frequency oscillator, a frequency counter, a 50 ohm RF-bridge, and an 8-bit micro-controller. It’s compact (measuring 4x2x6 ¾ inches) and battery-powered, allowing you to take it anywhere—on DXpeditions, to remote sites, up towers, and more.

Use the MFJ-259C for a complete picture of your antenna’s performance, with the ability to test:

  • Antennas – SWR, impedance, reactance, resistance, resonant frequency, and bandwidth)
  • Antenna tuners – SWR, bandwidth, frequency
  • Amplifiers – Input and output matching networks, chokes, suppressors, traps, and components
  • Coaxial transmission lines – SWR, length, velocity factor, approximate Q and loss, resonant frequency, and impedance
  • Filters – SWR, attenuation, and frequency range
  • Matching or tuning stubs – SWR, approximate Q, resonant frequency, bandwidth, impedance
  • Traps – resonant frequency and approximate Q
  • Tunes circuits – Resonante frequency and approximate Q
  • Small capacitors – Value and self-resonant frequency

Get the MFJ-259C Antenna Analyzer today from DX Engineering!

DX Engineering of Tallmadge, Ohio is now the exclusive source for the Cycle 24 Galvanized Economy Saddle Clamps. The U-bolt clamps are an inexpensive solution for your antenna and tower projects. Their galvanized steel saddles and U-bolts will last for many years in outdoor environments.

Cycle 24 Saddle Clamps

Cycle 24 Galvanized Economy Saddle Clamps now available exclusively at DX Engineering

The clamps feature serrated flange nuts for locking power. Clamps with 3/8 inch diameter U-bolts have unique flat surface at the top of the bolt for improved grip on the tubing. Clamps for 3 and 3.5 inch tubing have saddles that are closed and spot-welded on the ends before galvanizing. This increases clamp strength and longevity.

The Cycle 24 Galvanized Economy Saddle Clamps are available for 1.25, 1.5, 1.75, 2, 2.25, 2.5, 3 and 3.5 inch diameter tubing. Clamps with 5/16 inch diameter U-bolts are suitable for plates up to 3/16 inch thick when using saddles, and .250 inch thick plates if saddles are not used. Clamps with 3/8 inch diameter U-bolts will accommodate plates up to 9/16 inch thick.

SEE THE CYCLE 24 GALVANIZED ECONOMY SADDLE CLAMPS AT DXENGINEERING.COM: http://www.dxengineering.com/search/product-line/cycle-24-galvanized-economy-saddle-clamps

DX Engineering

For More Information Please Contact: Tim Duffy K3LR, TDuffy@DXEngineering.com

About DX Engineering
At DX Engineering, Amateur Radio is all we do. Our goal is simple: fulfill the needs of Ham radio enthusiasts with the best products and technical support. Whether it’s DXing, Contesting or just plain everyday operating, we strive to develop products that fill a specific need, products that are reliable, fully tested and represent the best value for your money. DX Engineering also carries the highest-quality products from brands that meet our exacting standards.

DX Engineering of Tallmadge, Ohio recently acquired the assets of Cycle 24 Antenna Products, a web-based retailer of Amateur radio antennas and antenna components.

“Cycle 24 is a great fit with DX Engineering,” explained Tim Duffy K3LR, DX Engineering Chief Marketing Officer. “Both companies have a great reputation in Amateur radio for innovative, high quality products and more importantly, helping radio enthusiasts design and build their own antennas.”

Several Cycle 24-developed products will be available at DX Engineering, including the affordable line of U-Bolt Saddle Clamps and the EA4TX Rotor Controllers.

DX Engineering will also be the exclusive source for the popular 2X Arrays TX38 Yagi Antenna, which has been selected as the Official Triband Antenna of WRTC-2014.

“We welcome all of Cycle 24’s customers to the DX Engineering family,” Duffy continued. “We are sure they will be happy with our selection of the best products available in Amateur radio as well our excellent customer service, large inventory, fast shipping, and free shipping on most orders over $99.”


For More Information Please Contact: Tim Duffy K3LR, TDuffy@DXEngineering.com

DX Engineering

About DX Engineering

At DX Engineering, Amateur Radio is all we do. Our goal is simple: fulfill the needs of Ham radio enthusiasts with the best products and technical support. Whether it’s DXing, Contesting or just plain everyday operating, we strive to develop products that fill a specific need, products that are reliable, fully tested and represent the best value for your money. DX Engineering also carries the highest-quality products from brands that meet our exacting standards.

The FT5ZM Amsterdam Island DXpedition is now QRT.

DX Engineering sent a large amount of equipment on this DXpedition, and recently had the chance to catch up with Valerie Hotzfeld, NV9L, about the progress of the voyage.

From Valerie:
They flew from the US to Hong Kong to Perth. Once there, their journey took 9 days via the Braveheart to Amsterdam Island. The French welcomed them on their 1st day with a celebration. Cake, wine, cheese and lobster were some of the items on the menu.

The next morning they got to work, as they had lots of antennas to erect. They had antennas (verticals and beams on towers) at both camps (Metaf & Antonelli) for 80, 40, 30, 20, 17, 15, 12, & 10. They also have a vertical at Antonelli for 160.

The terrain is very difficult. This island used to have cattle. To support them, grass was planted on top of this lava rock terrain. So imagine wild grass growing, chest high in some places. This on top of about 2 feet of dead grass on top of lava rock. This makes it very difficult to navigate, let alone put up towers, guys and feed line. Camp Antonelli is about a 1 & 3/4 hour walk and can only be done in the daylight.

As I’ve been told, they have set up some sort of communication between the 2 camps so each laptop can successfully send a download of all its QSO’s to a master laptop. The master laptop then transmits a complete log to Dean here in the states who deletes and replaces the current Club Log every time; rather than merge today’s logs with the existing logs.

Ft5ZM towers

Hardware is loaded onto the Braveheart in Perth, Australia for the FT5ZM DXpedition.

The temps have been in the 50′s almost every day with some showers bringing the temps down to the mid-to-high 40′s. Most of the guys are doing shifts of 12 on and 12 hours off. There is a small village of houses within 5-10 minutes of Metaf. This is where the 20 or so French scientists live; 18 men and 2 women. They are eating very well; 3 meals a day when they’re not operating and can walk into the small village to enjoy it. Seeing seals and penguins walking around is commonplace. It is said that if you get bit by any of these animals (seals, walrus or penguins), you only have a few minutes to chop off whatever got bit, or else you could die from the bacteria. They have also seen some whales nearby.

Valerie ~ NV9L

The DX Engineering-provided equipment left about seven months ago, was packaged in containers in Australia and had to survive a nine-day boat trip to the island.

It could have easily had issues, but we’re happy to hear that it has been a raging success, helping to propel the success of the entire FT5ZM Amsterdam Island DXpedition. More than 3,000 contacts were made on 160 meters, with much credit going to DX Engineering’s Four-Square packages.

Stay tuned for more from the team.


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