HF SWL 16m Band Scan


Over the last twenty years many countries dropped their short wave broadcasting service in favour of streaming over the Internet. Personally I feel this is a pity especially since we are now in the peak of Solar Cycle 25 with excellent propagation (Refs.1/6). HF still offers many benefits and the short wave bands are still active. Using various data bases one can easily identify a station. Stand alone references (Ref.7) can be used without internet access, or on line data bases (Refs. 8 & 9).

Receive Block Diagram

Fig.1 Rx Equipment Setup
Frequency MHz17.79017.855
Relative Noise Level-110dB-110dB
Signal Strength-80dB-65dB
Tx LocationWRMI
Okeechobee, Florida, USA
Noblejas, Spain
Fig.2 Details of 16m Band Stations Received
Fig.3 YouTube Video HF SWL 16m Band Scan

Figure 1 shows the receive block diagram. In this case I am using a new desktop computer running Windows 11 with Spectravue software. My receiver is an SDR-IQ with an HF Buddipole antenna. I selected two stations as shown in Fig.2 to identify using an on line data base Ref.9. Fig.3 is a YouTube video showing how the lookup was done.

Please send your comments, questions and suggestions to:

YouTube Channel
YouTube Channel


#1. – “RTL-SDR for HF 40M Band Scan”

#2. – “HF Solar Eclipse Propagation”

#3. – “RTL-SDR for HF WWV Propagation”

#4. – “RTL-SDR for HF Beacons Propagation Predictions”

#5. – “Major Solar Cycle 25 Geomagnetic Storm”, June 2023 ARRL QST Magazine

#6. – “Experience the Wonders of Solar Cycle 25’s Solar Maximum”, May 2023 ARRL QST Magazine

#7. “Klingenfuss Publications”

#8. – “Short Wave Database”

#9. – “Short Wave Info”

By Jeremy Clark

Jeremy Clark is a Senior Telecommunications Engineer and Advanced Amateur Radio Operator VE3PKC. He is the author of E-Books on Telecommunications, Navigation & Electronics.