Welcome to Washington DC Area SDR HF radio receiver system maintained by NA5B, Mehmet, e-mail na5b@hotmail.com The web site: http://na5b.com

This receiver covers VLF/LF/MF/HF - 160m, 80m, 40m, 30m, 25m, 20m, 15m, 11&10m Amateur Bands (Atomic Clock, Data, Lightning, Beacons, AM broadcast & CB). Current system brief description; Antennas: Active Mini Whip - Multiband Dipole & Cuschcraft R-7 Server: 64 Bit Linux (Debian) with fiberoptic gigabit connection.

RTL-SDR dongles and homebrew upconverter, bandpass filters. For VHF-UHF SDR click here: http://na5b.com:8902. 0 - 30MHz coverage: NA5B KiwiSDR

More info about the WebSDR project can be found on http://www.websdr.org. Other SDR's: UTAH UT - KFS CA - K3FEF PA - NY4Q GA - N4DKD AL - W7RNA AZ

Thank you to AD8AE, K1LWC, WD5GWC, AB3VN, W5AWG, W7HB, KN4VV, N4RLI, KZ3AB, K4NNK, WN3F, W2QL, KM4OBL and XE1RK for their donations.

* A high stability central local oscillator has been installed for all sdr's for better frequency stability. (19 May 2019) ** This WebSDR is compatible with Pocket RxTx App for Android (available in the PLAY STORE) for more info: YO3GGX, Dan

This site GUI includes some features by PA3FWM from University of Twente, Utah, Topband, Poland Nowy Sacz and other WebSDR sites.

Special thanks to the folks at the Northern Utah WebSDR for providing the DSP Noise Reduction function! more info --- N A 5 B W e b S D R R E C E I V E R S Y S T E M ---

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HURRICANE WATCH NET Main (night): Secondary (day): When conditions dictate, net is active on both simultaneously.

Please join Washington DC NA5B WebSDR FaceBook Group >>> WASHINGTON DC WebSDR FB Group Please join Washington DC NA5B WebSDR

A new FULL WINDOW, DSP Noise Reduction and a 2nd Notch Filter function are installed. A new FULL WINDOW, DSP Noise Reduction and a 2nd Notch Filter function are installed. more info 0 - 30 MHz NA5B KiwiSDR