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     Peter Miles
     Northam, Western Australia
     QRZ Page: VK6YSF

 

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SDR HF UP CONVERTER

SDR 0.1 - 50MHz spectrum up converter.


 

100kHz - 50MHz spectrum up 100.1 - 150MHz converter to suit SDR using the Realtek (DVB-T) tuner dongle.

 

Fig 1 Block diagram for the 0 - 50MHz spectrum up 100 - 150MHz converter. 

 

Fig 2 Schematic of the 0 - 50MHz spectrum up 100 - 150MHz converter. 

 

Fig 3 AADE Filter Design 4.5 attenuation analysis of the receiver low pass filter circuit. 

 

Fig 4 AADE Filter Design 4.5 attenuation analysis of the receiver high pass filter circuit.

Fig 5 ECH11 pin outs. 

 

Photo 1 0 - 50MHz spectrum up 100 - 150MHz converter.

 

References  

SDR using the Realtek RLT2832U USB Digital Terrestrial TV (DVB-T) tuner dongle to receive VHF/UHF. SDR1

This Wiki is intended to collect all sorts of disparate information concerning the use of the so called RTLSDR. If you wish to add to this wiki please contact the Osmocom guys and ask for editing access rights to this site. http://www.rtlsdr.org/

SDR# (read SDR Sharp) is a high performance Software Defined Radio application. It is written in C# with both object design correctness and performance in mind. http://sdrsharp.com/

Software-defined radio : http://en.wikipedia.org/wiki/Software-defined_radio  

 

 

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Page last revised 12 March 2022

 

 

   Space Weather

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Merry Christmas Reindeer Gif

   Notice Board

VK6YSF JS8Call and Olivia 8/250 operations.

Current activity is generally focused - though not restricted to - JS8Call operations on the 20m, 30m, and 40m bands.

Currently there is a particular emphasis on JS8Call on the 10 and 12 m band between 00:00 and 12:00 Z, often extending beyond this period.

Olivia 8/250 is used occasionally on the 20m band.

Proposed band and mode activity is often communicated on HamSpots: https://hamspots.net/js8/ or my profile on 

X: https://x.com/vk6ysf97230 .  

Feel free to contact me to discuss or arrange a schedule for a contact.

Post date: 7 December 2025

 

Western Australian SSTV net 

Popular Western Australian SSTV net for both digital and anolog SSTV.

Generally found at 7214.0kHz LSB every afternoon from 08:00 UTC (4:00pm WST)

For more details: https://www.wasstv.net/wasstv.net/index.html

Post date: 8 December 2025

 

VK6MJM LF (136kHz) and MF (474kHz) Beacon

VK6MJM is a  LF/MF station located in Manjimup, Western Australia.

Common Mode: FST4W 300 (Similar to WSPR)  

Note: other modes and sub-modes may be used.

Station details were presented by Peter Hall (VK6HP) at PerthTech 2024.Presentation PDF: Peter Hall VK6HP at PerthTech

QRZ Page: VK6MJM on QRZ.com

Post date: 10 March 2025

 

 

 

 

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Amateur Radio Station VK6YSF - Promoting amateur radio communication and experimentation.