DRM-1 DRM DOWN CONVERTER







Introductory Price $80.00
US Shipping $10.00

Or send a check or money order to the address below.


The DRM-1 (12KHz) downconverter opens up the exciting world of IF DSP processing to ANY 455KHz IF equipped receiver. The DRM-1 down converts the 455KHz output to 12KHz, suitable for  DSP processing using your PC's sound card. The DRM-1 is a premium engineered downconverter, featuring crystal controlled operation for drift-free response. It is 100% American designed and manufactured.

With the DRM-1 you can take the 455KHz BNC output of your high-end receiver such as the Ten-Tec RX-340 or the Racal 6790/GM and directly feed the sound card of your PC. This direct connection gives you a superior Signal-To-Noise ratio for further processing with the software of your choice.  The advantages of sound card DSP processing is of particular note to owners of older "super" receivers with a limited selection of mechanical filters, such as the Racal, Harris etc.

Now you can enjoy unlimited DSP bandwidths, new digital modes and digital shortwave reception (i.e. DRM - Digital Radio Mondiale), using any one of the dozens of DSP programs on the market, many of them free.

Any purchaser of the DRM-1 is entitled to a free copy of the Dream DRM digital shortwave decoding software, provided in a convenient one-button installer by DXtra (http://www.dxtra.com). DXtra paid the DRM consortium a licensing fee for the rights to distribute the Dream software. Although largely open-source the Dream software, does contain proprietary audio codecs.

The DRM-1 comes equipped for out of the box use. It provides a BNC connection to your receiver, a wall wart power supply, and a standard PC sound card output plug. The IF input level and the 12KHz out level are internally adjustable for easy interfacing with your receiver and computer. Note that the DRM-1 will work with the new low-cost C. Crane CCRadio-SW IF output jack.

A partial list of
radios equipped with a 455KHz IF output jack: Ten-Tec RX-340 / RX-331, Racal 6790/GM, Harris RF-590, CC-Radio-SW, Watkins-Johnson HF-1000, Collins R390 series, Hammarlund SP-600. (Please email us with additions.)

A Tube Shield Interface is available for use with vintage receivers. Simply put the interface on the last IF amplifier tube. The tubes must be the miniature type. The IF signal is capacitively coupled from the tube to the tube shield,  and to the DRM-1.

Links of interest:

DRM web site with real-time schedules:

http://drm.org

DXtra Control Software and Dream (supports Ten-Tec, Icom, Racal etc.)

http://www.dxtra.com/store.html


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Electronic Specialty Products, LLC •  3054 Moore Drive •  Oviedo, FL 32765
Phone  407-366-4859