Category: News

AFEDRI LAN-IQ: Standalone 12-bit 30 kHz to 1.7 GHz SDR with LCD Screen for $339

AFEDRI have recently begun shipping their new software defined radio called the "LAN-IQ". The LAN-IQ is a full standalone SDR with good advertised specifications and a very decent price of only US$339. The advertised specs from the Afedri LAN-IQ website are pasted below:

  • 30 kHz to 1700.00MHz continuous frequency range
  • Direct sampling
  • DDC - Digital Down-Conversion
  • 12- bit 76.8 MSPS A/D conversion
  • Stand Alone mode (AM, CW, SSB, NFM, WFM stereo, BPSK, QPSK demodulators)
  • Up to 2.2MHz recording and processing bandwidth
  • Waterfall display functions, when used with appropriate software
  • Recording and playback, when used with appropriate software
  • Sensitivity -  MDS -136 dBm at 500Hz bandwidth (0.03MHz-35MHz)
  • Sensitivity -  MDS -143.5 dBm at 500Hz bandwidth (50MHz-435Mhz)
  • USB 2.0 (Full Speed) interface
  • LAN interface for remote access
  • Compatible with: Linrad, Winrad, HDSDR, Studio1,  SDR Console (SDR-radio), CuteSDR, SdrDX, Quisk, PowerSDR_mrx
  • Powered from USB or external power supply 7-10VDC
  • Dimensions 120mm deep x 78mm wide x 27mm high
  • Unit cost - $339
The Afredi LAN-IQ SDR
The Afredi LAN-IQ SDR

They go on to elaborate on the specs:

LAN-IQ SDR is stand-alone, direct sampling Software Defined Receiver (see picture above)  it has ability to send it's received I/Q stream in three different modes:

  • Stand-Alone (Digital processing, filtering , decoding is implemented inside SDR)
  • Network (LAN)
  • USB

LAN-IQ SDR has the following specification:

  • Frequency Coverage: 0.03MHz-35MHz & 35MHz-1700MHz
  • Noise Figure: ~11dB (for 1MHz-35Mhz range and maximum RF gain 35dB)*
    *input VGA (Variable Gain Amplifier) has variable Gain from -10dB up to +35dB
  • Noise Figure: ~3.5dB (for 50MHz-435Mhz range and maximum LNA/MIX gain )
  • MDS: -136 dBm at 500Hz bandwidth (0.03MHz-35MHz)
  • MDS: -143.5 dBm at 500Hz bandwidth (50MHz-435Mhz)

Output data format: two 16-bit I/Q channels (audio stereo stream emulation)

Maximum Receiving Bandwidth:

  • BW = up to 2200kHz (for 2400kHz sample rate) -  using Network connection
  • BW = up to 706kHz (for 768kHz sample rate) -  instand-alone mode
  • BW = up to 230kHz (for 250k samples/s sample rate) -  using USB connection

RF ADC sampling rate: 76.800 MHz

Power Supply Voltage Requirements:

  • 5V (supplied from the PC's USB bus or from external) or  from external power supply able to provide 5VDC +/-0.2V).
  • 7.0-10V DC to the DC power connector.

Power Supply Current Requirements:

  • up to 850mA (max. LCD brightness, network cable connected, VHF/SHF band)

The LAN-IQ SDR is designed to be used in stand-alone mode , i.e. without need to use  any additional computer and software.

In same time the SDR can be connected and used with  Personal Computer (PC) by two interfaces:

1. Ethernet Network connection.

This can now provide up to 2400 kHz sample rate

2. Full Speed USB

From PC point of view, the SDR-Net can be used alternatively as:

1. Network device using two IP protocols: TCP and UDP.

  • TCP protocol is used to control the SDR parameters.
  • UDP protocol is used to send received I/Q stream from SDR to PC

2. Or exactly like the  AFEDRI SDR-Net -USB Composite Device, that contains two USB functions:

From the Afedri Groups.io forum we've learned that by default the unit will come without the tuning knob, but a knob can be requested if preferred, although it comes with some limitations.

Ordering of the LAN-IQ is done via email only, and the email address can be obtained at the end of their ordering page. They accept PayPal, and shipping costs anywhere from $18 - $32 depending on the country. Also regarding shipping they note that deliveries may be delayed due to COVID-19 which is of course the case for every global delivery right now.

From the SWLing Post blog post we've also learned of a short demonstration video created by Fenu-Radio which is shown below. We are also awaiting his full review which will be posted on fenu-radio.ch.

Afedri LAN-IQ in Action

In a second video Fenu-Radio compares the LAN-IQ against the Malahit-DSP which is another similar low cost standalone SDR which we posted about back in November 2019.

Malahit-DSP & Afedri LAN-IQ "Head to Head"

More videos of the LAN-IQ in action can be found on the Afredi-SDR YouTube channel.

SDRplay Coronavirus Supply and Distribution Impact Update

SDRplay have recently released an update on how the Coronavirus is impacting their supply lines. In short, they note that their fulfillment is currently normal, but there may be delays in the logistics distribution network. In terms of stock levels, they have enough to cover a few more weeks of normal buying, but beyond that the supply chain is not certain and there may be restocking delays.

Dear customer,

We have been fortunate that our suppliers have been able to source the components needed to fulfil our current backlog commitments. In particular the demand for the new RSPdx exceeded our expectations, and that has caused shortages up until now.

However we now have enough product available to continue supply of all three SDRplay production RSPs for a few more weeks at traditional buying levels. Beyond that, we will be dependent on our subcontract manufacturing partners’ ability to source components. As the coronavirus situation unfolds it is likely that restocking will take significantly longer than usual and we are working with both suppliers and our distributors to do our best to plan for the uncertain future.

Meanwhile, regarding orders placed in the next week or so, SDRplay and its fulfilment centres are currently working as normal, BUT please be aware that logistical delays in the distribution network are likely – so please be patient if your shipment takes longer than expected.

We’d also like to take the opportunity to send our best wishes to all our customers and their friends and families as this emergency situation develops.

Jon, on behalf of the SDRplay team.

GQRX Updates: GR3.8, New Color Maps, Bug and Performance Fixes

Since mid-January 2020 the popular Linux and Mac compatible SDR program GQRX has seen a number of new code commits over on it's git repository. Some of the updates include moving to GNU Radio 3.8, new color maps, as well as various bug and performance fixes.

At the moment these updates only appear to be available on the latest git code, so to get them you'll need to install GQRX from source via the instructions on the git readme.

Also thank you to @devnulling for providing us with the screenshot posted below which shows off the various new color maps available for the FFT waterfall.

GQRX Updated Color Schemes
GQRX Updated Color Maps

OpenWebRX Version 0.18.0 Released: New Decoders for Digital Voice, Digital Ham Modes and More

Back in early January we posted about how the popular web based SDR and RTL-SDR compatible receiver software known as OpenWebRX was officially discontinued by the original author. However, thanks to it's open source licence, code contributor Jakob Ketterl (DD5JFK) has been able to continue developing the code and is taking over as the lead developer on his own fork of the code.

Recently he released version 0.18.0 of OpenWebRX which includes a few major upgrades including the much needed shift to Python 3, and the inclusion of multiple new decoders for DMR, D-Star, YSF, NXDN, FT8, FT4, WSPR, JT65, JT9, APRS and Pocsag.

Hello fellow radio enthusiasts,

with great excitement I would like to announce the availability of OpenWebRX Version 0.18.0 as public release. This is the first release of the project in some time, and the first release since I started working on it, so I’m more than happy to bring this to you.

What’s new? Quite a lot, actually. For those that haven’t had the chance to follow the progress of the project in the past months, here’s a quick overview:

    • Most of the server code has been rewritten for better flexibility, stability and performance. The project is now fully based on Python 3.
    • Large parts of the frontend code have been updated or polished.
    • The new core now supports multiple SDR devices simultaneously, as well as switching between multiple profiles per SDR, allowing users to navigate between multiple bands or frequencies.
    • Added support for demodulation of digital voice modes (DMR, D-Star, YSF, NXDN).
Added support for digital modes of the WSJT-X suite (FT8, FT4, WSPR, JT65, JT9).
  • Added support for APRS.
  • Added support for Pocsag.
  • Bookmarks allow easy navigation between known stations.
  • Background decoding can transform your receiver into an automatic reporting station, including automatic band scheduling.
  • The integrated map shows digimode spots as well as APRS and YSF positions.
OpenWebRX 0.18.0 is available via the following channels: Please check out our updated Setup Guide along with the rest of the documentation on the Wiki!

Questions, ideas, problems? Get in touch with the community at [email protected]!

Best regards and vy 73s

Jakob DD5JFK

We're so glad to see that this excellent software isn't dead in the water and is in fact thriving. We will continue to follow the Jakob's and the OpenWebRX communities' future developments. If you are interested, you can follow OpenWebRX development on the OpenWebRX groups.io forum.

OpenWebRX Screenshot
OpenWebRX Screenshot

New Elad FDM-S3 Specifications and Photos

The Elad FDM-S3 is an upcoming high performance Hf speciality SDR that is expected to be released this year with a price of 949.90 € ($1040 USD). Over on the swling.com blog, and the Elad website we've seen some recently released information about the new specs.

--- WIDEBAND DIRECT SAMPLING RECEIVER ----

 JAN 2020 SPECIFICATIONS

  • 2 switchable HF Antenna inputs direct sampling
  • 1 VHF Antenna input direct sampling
  • Works with FDM-SW2 ELAD Software & SDR Console
  • Optional: Antenna RF input  downconversion (50MHz - 2GHz preview)
  • Real Time I/Q Stream Bandwidth 192khz, 384KHz, 1536KHz, 12880KHz, 24576KHz
  • 122.88 MSPS - 98.304 MSPS 16bit A/D converter
  • Clock synchronized to GNSS Global Navigation Satellite System or 10MHz Ext Ref
  • GNSS works with GPS, GLONASS, GALILEO, BEIDOU
  • Auxiliary USB used to monitor GPS status or for clock firmware updates
  • 10MHz Clock reference Output
  • 10MHz internal standart TCXO 100ppb referenced, optional 3ppb OCXO referenced

Compared to the FDM-S2 the FDM-S3 looks to have significantly increased bandwidth, meaning now that almost the entire HF spectrum could be monitored. ALso the optional built in downconverter would allow tuning up to 2 GHz, where it was previously limited to only 160 MHz on the FDM-S2. The new GNSS referenced clock and improved TCXO/OCXO is also going to mean significantly improved frequency stability.

The Elad FDM-S3
The Elad FDM-S3

Meteor-M N2-2 Weather Satellite Updates: No More 137 MHz LRPT, L/X-Band Working in Daylight

In late December 2019 we posted about Russian weather satellite Meteor M N2-2 which had unfortunately been struck by a micro-meteorite on Dec 18, causing it to lose control and go offline. Meteor M N2 and N2-2 satellites are often monitored with RTL-SDR dongles as it is relatively simple to receive their LRPT signal at 137 MHz which contains a high resolution weather satellite image.

Recently Happysat updated his Meteor M status page, noting that Meteor M N2-2 has been partially recovered, but due to low power it can no longer transmit a 137 MHz LRPT signal ever again. However, the L and X-bands are transmitting while the satellite is in daylight. Happysat writes:

January 2020 There will be only short-term power-ups in the radio visibility zone, and the battery life will be reduced tenfold.

Of particular concern are the batteries they are very quickly overheated and switching from regular to backup.

Unfortunately the power supply features do not allow the 137 MHz transmitter to be used in abnormal power, mode (from solar panels) which is used now although technically it is working fine.

There will be no LRPT Transmission's anymore.

The older Meteor M N2 satellite remains operational transmitting at 137.100 MHz.

The Meteor-M2 Satellite
The Meteor-M N2 Satellite

KiwiSDR Portal SDR.HU Now Requires a Ham Licence + OpenWebRX Development Discontinued

The KiwiSDR is a US$299 HF SDR that can monitor the entire 0 - 30 MHz band at once. It is designed to be web-based and shared, meaning that the KiwiSDR owner, or anyone that they've given access to can tune and listen to it via a web browser over the internet. 

OpenWebRX is code originally created by András Retzler and a modified version runs on the KiwiSDR devices. This code is what allows them to be accessed online by a browser and was popularized by it's use in the KiwiSDR. The original code can also be used by other compatible SDRs such as the RTL-SDR.

Recently András released news that he is discontinuing work on OpenWebRX due to interest in other projects, but it will remain on GitHub as open source code. András also notes that the security of OpenWebRX will soon be in question as it utilizes Python 2, which has been designated end of life on January 1 2020. In addition, if you've been following OpenWebRX since the beginning, you'll know that in the past OpenWebRX was involved in an legal/ethical issue over open source licencing with KiwiSDR. Although the problems with KiwiSDR were resolved amicably, Andras also references his frustrations with similar situations to do with his code being forked again and again. 

We note that maintenance and development of the KiwiSDR OpenWebRX code will continue as they are considered separate projects. Due to some confusion, we importantly reiterate that the KiwiSDR product is unaffected by OpenWebRX being discontinued. Although KiwiSDR is based on OpenWebRX they use their own custom branch of the software that is maintained by the KiwiSDR owners and not by András.

András also runs the popular sdr.hu OpenWebRX/KiwiSDR directory, which was/is considered the main directory for finding and accessing public KiwiSDR and other SDR devices running OpenWebRX. Recently the directory was restricted, and now can only be accessed by those with a ham radio callsign. It is unclear why this decision was made as sdr.hu was very popular with shortwave listeners and radio newbies who are typically not hams. But the sdr.hu FAQ notes "The purpose of the site is to serve amateur radio. I decided to restrict access to the receiver list in order to protect the site and its purpose in the long term."

Fortunately, over on his SWLing.com blog, Thomas has noted that there are still other KiwiSDR directories available such as https://ve3sun.com/KiwiSDR, http://kiwisdr.com/public and http://rx.linkfanel.net.

SDR.HU Requires a Login Now
SDR.HU Requires a Login Now

The Malachite-DSP: A $195 Russian Made Portable Wideband SDR Receiver with Touch Screen

Over on the SWLing.com blog we've seen news about the release of a new Russian designed and made portable software defined radio called the "Malachite-DSP". The Malachite-DSP is an "all-in-one" portable SDR that is controlled via a touch screen and two control knobs. It covers 0.1 MHz to 1000 MHz with a bandwidth of up to 160 kHz, and the custom software supports all common modulation types. The whole device consumes 300mA and is powered by a Li-ion cell. It's marketed as a modern DEGEN and TECSUN replacement, so it appears to be targeting the HF short wave listening (SWL) customer.

Production appears to be small, with purchasing currently done by contacting RX9CIM, one of the project creators, directly at his email address (details on this forum post). The cost for a fully assembled unit is 12500 Russian Rubles which is 195 USD (not including international shipping). You can also purchase just the PCB without components for 1100 Rubles (17 USD). Importantly the forum post notes to watch out for scammers, who appear to be trying to take fake preorders for the device.

From the components list we can see that this SDR runs on the MSI001 tuner chip, which is the same tuner chip used in the SDRplay line of units. However, unlike the SDRplay units which use a wideband MSi2500 ADC, the Malachite-DSP uses an audio chip as the RF ADC. This provides a 16-bit ADC, resulting in high dynamic range, but at the expense of the available bandwidth which is only 160 kHz. A STM32H743VIT6 with ARM Cortex A7 processor runs what appears to be custom DSP and GUI software. The software doesn't seem to support DRM, but AM, WFM, NFM, LSB, USB are all supported.

The main place for news and discussion on the Malachite-DSP appears to be on a Russian ham radio forum thread. Judging by the fact that the schematic, software and BOM is all freely released, the project appears to be open source. There is also a group on the Russian Facebook clone vk.com where some discussion is occurring.

The YouTube videos below are by a Russian reviewers. Be sure to turn on the YouTube closed captioning and auto translation feature if you want to follow along in English.

😲ПРИЕМНИК КОТОРЫЙ ЛОВИТ ВСЁ!!!💥🔝 ЭТО ВАМ НЕ Degen и Tecsun ВСТРЕЧАЙТЕ НОВЫЙ МАЛАХИТ DSP V2💯🆕

SDR приемник МАЛАХИТ DSP

The Malachite-DSP reminds us a bit of the unreleased PantronX Titus II SDR, which is supposed to be a low cost (aiming for less than $100 USD) 100 kHz - 2 GHz tablet screen based SDR that was supposed to make DRM reception more popular. However the Titus II hardware has never eventuated since it's initial news in 2016, and at this time appears to be a dead project.