Products & Product Reviews

New Product Spotlight: From DX Engineering Work Shirts to the RX-Audite Switch Controller

The 2024 edition of the DX Engineering catalog may be months away, but that doesn’t stop the company’s team of active operators from constantly adding products to its lineup of more than 30,oo0 amateur radio items available at

The variety of what’s available is far reaching, from comfortable and attractive DX Engineering-logoed shirts that’ll make you the talk of your next club meeting to ingenious devices that enhance your on-air experience. Here are two of DX Engineering’s freshest offerings:

DX Engineering Work Shirts

Here’s a chance to dream about getting outside when it’s time for warm-weather operating and station maintenance. DX Engineering Redcap Short Sleeve Work Shirts are the perfect attire when you’ve got jobs to do around the shack. They’re crafted from a high-quality 4.25 oz. 65/35 poly-cotton blend, making them comfortable and rugged enough to stand up to the toughest work environments.

The shirt features the latest stay-clean technology so it looks sharp throughout the day. The shirts come with two button-through front pockets; a left pocket with a bar-tacked pencil stall to keep your logging pencil handy; and the DX Engineering logo embroidered on the front, showing the world your commitment to the hobby we all love. Available in black, charcoal, and navy in men’s sizes small through 4X-large. Other features include:

  • Touchtex™ technology for superior color retention, stain release
  • Open collar with sewn-in stays
  • Six buttons with metal collar snap
  • Machine wash, tumble dry RX Audite SDR Antenna Switch Controller

From longtime contester Jan Sustr, OK2ZAW, of in the Czech Republic, comes the RX Audite SDR Antenna Switch Controller—a device created to solve the problem of being able to monitor the amateur radio bands with an SDR while simultaneously operating on one or more of those bands.

The RX Audite combines the functionality of a T/R switch, a receive antenna input, and a receive splitter with specialized switching. The transmit/receive (TX/RX) main antenna can be shared with both outputs, transceiver and receiver (SDR) with RF power limiter protection. These versatile devices are perfect for use with a separate SDR receiver for Spectrum Panadapter, WebSDR or as a Skimmer Server to contribute spots to the Reverse Beacon Network (RBN).

The RX Audite features frequency coverage of 100kHz–60 MHz including 160 through 6 meters with a maximum transmit power handling of 200W. It is available from DX Engineering with or without internal preamplifier. The HIGH IP3 preamp can be used for insertion loss compensation, with variable gain up to 14dB. For RX SDR output, the preamplifier can be switched ON, even when the controller is in the OFF state.

The RX Audite is installed in the feedline between a transceiver and an amplifier or transmitting antenna and diverts that antenna to the RX (SDR) Output whenever the PTT is not active. While transmitting, the RX Audite bypasses the RX SDR port with 100dB isolation, allowing the transceiver to operate normally. Functionally, when the controller is OFF, the main TX/RX antenna goes to the SDR RX output and includes 10mW RF limiter protection. When the controller is ON, the Main TX/RX antenna is shared between TRX and SDR outputs. A front panel switch allows selection for the SDR RX output to be the Main TX/RX antenna or the INBAND RX ANT input port. During transmissions, the SDR RX output can be set to connect to either the INBAND RX ANT input or an internal dummy load (jumper set).

DX Engineering plans to add more devices in the months ahead. OnAllBands will keep you posted.

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