Comment on Video About Receiving The Othernet Satellite Data Service: Free APRS, News, Weather by none

WTF! The Pick “Deutsche Welle” who is a THE German Propaganda Station!
I believe its some project from a 3ltr Agency!

Comment on Manual Installation of SDR# by Hhh

Ok boomer

KerberosSDR • Re: Power connection question

Good day
Thank you
I was able to locate replacement part from RS-Components and it will be on my desk next week
AP3407AKTR-G1
1.2A 1.4MHz DC-DC Buck Converter SOT23-5

Statistics: Posted by zs6iix — Wed Nov 13, 2019 10:53 am


First YouTube Reviews of the SDRplay RSPdx

SDRplay recently released news about their upcoming RSPdx software defined radio, which replaces the RSP2 as the top of the line unit in the SDRplay lineup. The RSPdx is not yet on sale, but a few YouTube reviewers have already received their units. The first review comes from Mile Kokotov who is known to have reviewed several SDRs in the past. Mile's impressions are that the receiver works very well. He writes on his video blurb:

Today i have received the new SDR receiver from SDRplay, the RSPdx and was eager to turn it on and do some tests receiving on HF and VLF. Although at the moment my mini-whip antenna is not operational, I have connected some 20 meters wire as an antenna and start listening on VLF, LW, MW and HF...

I have to say that SDRplay team did a good job with this SDR-receiver, putting better filters and redesigning front-end to improve dynamic range and enhance overall performance in relation to its predecessors RSP2 and RSP2pro. The new RSPdx is very good indeed. Especially on HF and below.

The RSPdx has new features like HDR (High Dynamic range) mode for reception within selected bands below 2 MHz. HDR mode delivers improved intermodulation performance and less spurious responses for those challenging bands.

The New SDRplay RSPdx receiver - First Impression: Excellent!

The second review is by SevenFortyOne who runs through the various features of the SDRplay and also tests it on various HF signals.

SDRplay RSPdx Overview and SDRuno V1.33 Demo

The third video isn't exactly a review, but here TechMinds shows us how to run the RSPdx as a panadapter on his FTDX-3000.

FTDX-3000 Panadapter Setup With SDRPlay RSPdx

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

Just wait for Chinese manufacturer they will produce it in soon in huge quantity

RTL-SDR Discussion • Re: OTA on DVB-C with RTL-SDR

So the use DVB-C ?
Why not use a DVB-C Hardware?

Statistics: Posted by Username — Wed Nov 13, 2019 9:13 am


The Malachite-DSP: A $195 Russian Made Portable Wideband SDR 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.

Video About Receiving The Othernet Satellite Data Service: Free APRS, News, Weather

The Othernet project aims to bring live data such as news, weather, video, books, Wikipedia articles and audio broadcasts to the world via cheap receivers and a free satellite service. Although an internet connection provides the same data, Othernet's satellite broadcast is receivable in remote areas, will continue working in disasters, and costs nothing to continually receive roughly 100-200 MB of data a day. The trade off is that the service is downlink only, so the data that you get is only what is curated by the Othernet team. Currently the service is only available in North America and Europe, but service to other areas in the world may eventuate in the future.

We've posted about this project a few times in the past, as previously they used an L-band satellite service that was received by RTL-SDR dongles. However, these days they operate using LoRa hardware chips on the Ku-band.

Over on YouTube the TechMinds YouTube channel has just uploaded a video that demonstrates the Othernet service being received from the UK via their Dreamcatcher hardware. In particular he shows off the APRS feature which sends any APRS message containing the string "OUTNET" to the Othernet satellite stream. Later in the video he also shows the news articles, weather data, Wikipedia and audio data that was received.

OTHERNET - Free Data Anywhere - For everyone!

RTL-SDR USB android and 900mhz spectrum

Would it be possible to scan porta phone headsets (td900) with a RTL-SDR USB dongle on an android phone?

submitted by /u/gunner_gunner
[link] [comments]

KerberosSDR • Re: What tablet would you recommend?

Could folks that have their Kerberos system up and running with the android app please share with me what specific model Android Tablet and version of Android operating system they are using...Thanks!

Statistics: Posted by radman — Wed Nov 13, 2019 3:29 am


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