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Contact Details
Peter Miles
Northam, Western Australia
QRZ Page: VK6YSF
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AIRSPY HF+ DISCOVERY The
Airspy HF+ Discovery is a high-performance SDR receiver covering 0.5
kHz to 31 MHz and VHF (60 to 260 MHz)
Below
are the detailed technical specifications and features for the
Airspy HF+ Discovery SDR receiver.
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Reciever
Specification
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Details
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Receiver
Type
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Hybrid:
Direct Sampling (HF), Superhet Tuner (VHF)
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Frequency
Coverage
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0.5
kHz–31 MHz (HF), 60–260 MHz (VHF)
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Intermediate
Frequencies
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Direct
conversion (HF), RFFC2072 tuner IF (VHF)
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Tuning
Steps
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1 Hz
(software defined)
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Selectivity
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Software
defined (10 Hz – 768 kHz BW)
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Sensitivity
(HF)
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-135
dBm ≈ 0.056 µV (typical, 500 Hz BW)
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Sensitivity
(VHF)
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-125
dBm ≈ 0.18 µV (typical, 500 Hz BW)
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Dynamic
Range (HF)
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>110
dB
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Dynamic
Range (VHF)
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~95
dB
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Image
Rejection
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>80
dB (HF)
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Preselector
/ Filtering
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Automatic
tracking filters (HF & VHF)
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LO
Phase Noise
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<
–135 dBc/Hz @ 10 kHz offset
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Noise
Figure (HF)
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~1 dB
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Noise
Figure (VHF)
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~3 dB
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AGC
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Digital
AGC (software-controlled)
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Squelch
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Software-controlled
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Audio
Output
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IQ
stream only via USB
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Interface
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USB
2.0 Micro-B
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Power
Supply
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USB
powered (~200 mA)
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Antenna
Connector
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SMA
female (50 ohm)
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Form
Factor
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49 ×
29 × 10 mm, ~20 g
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Key
Features
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Exceptional
dynamic range and sensitivity — among the best for portable
SDRs
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Built-in
tracking filters — drastically reduce overloading from
broadcast stations
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Digital
AGC and gain staging to optimize SNR in real time
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Calibrated
S-meter and dBFS scale for accurate measurements
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Very
low power consumption – suitable for battery-powered or mobile
setups
Resources
Airspy HF+ Discovery
detail review: https://airspy.com/airspy-hf-discovery/
TOP
OF PAGE
Page initiated 30 June
2025
Page
last revised 05 November, 2025
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Space Weather
https://www.swpc.noaa.gov/
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Lee de Forest
born 26 August 1873
An American inventor and pioneer of radio electronics. His invention of the Audion triode vacuum tube in 1906 made electronic amplification possible and helped lay the foundation for modern radio, television and electronics.
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Notice Board
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VK6YSF JS8Call and
Olivia 8/250 operations.
Current activity is generally
focused - though not restricted to - JS8Call operations on the 20,
30m, and 40m bands.
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
.
Post
date: 29 July 2026
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Local
Repeaters
Repeaters Page Updated
- Expanded and refreshed information on VHF and UHF repeaters across Western Australia's Central Coast, Perth, the Avon Valley, and the Peel region. New AllStar Link information has also been added, including linked repeater details and
gateway information across the State.
See: https://vk6ysf.com/local_repeaters.htm
Post
date: 27 July 2026
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MARMOTSat
Amateur radio CubeSat
now successfully in orbit
Payload includes:
145.875 MHz – AX.25 packet digipeater
436.125 MHz – Telemetry & command (digital)
29.410 MHz – CW telemetry beacon, DVB-S2 experiments.
https://marmotsat.ca
https://www.propagationlab.ca/satellite/
Tracking: SatNOGS
DB - MARMOTSat
Post
date: 29 July 2026
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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
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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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