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     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.

 

Reciever Specification

Details

Receiver Type

Hybrid: Direct Sampling (HF), Superhet Tuner (VHF)

Frequency Coverage

0.5 kHz–31 MHz (HF), 60–260 MHz (VHF)

Intermediate Frequencies

Direct conversion (HF), RFFC2072 tuner IF (VHF)

Tuning Steps

1 Hz (software defined)

Selectivity

Software defined (10 Hz – 768 kHz BW)

Sensitivity (HF)

-135 dBm ≈ 0.056 µV (typical, 500 Hz BW)

Sensitivity (VHF)

-125 dBm ≈ 0.18 µV (typical, 500 Hz BW)

Dynamic Range (HF)

>110 dB

Dynamic Range (VHF)

~95 dB

Image Rejection

>80 dB (HF)

Preselector / Filtering

Automatic tracking filters (HF & VHF)

LO Phase Noise

< –135 dBc/Hz @ 10 kHz offset

Noise Figure (HF)

~1 dB

Noise Figure (VHF)

~3 dB

AGC

Digital AGC (software-controlled)

Squelch

Software-controlled

Audio Output

IQ stream only via USB

Interface

USB 2.0 Micro-B

Power Supply

USB powered (~200 mA)

Antenna Connector

SMA female (50 ohm)

Form Factor

49 × 29 × 10 mm, ~20 g

 

 

  

Key Features

  • Exceptional dynamic range and sensitivity — among the best for portable SDRs

  • Built-in tracking filters — drastically reduce overloading from broadcast stations

  • Digital AGC and gain staging to optimize SNR in real time

  • Calibrated S-meter and dBFS scale for accurate measurements

  • 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 13 July, 2025

 

 

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VK6YSF JS8Call, FSQ and Olivia 8/250 operations.

Current activity is generally, however not restricted to operations with JS8Call, FSQ and Olivia 8/250 on the 20m and 40m 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.

 

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

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

Mode: Mode: FST4W 300 (Similar to WSPR)

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

QRZ Page: VK6MJM on QRZ.com

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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