OpenSDR
Hockley Esssex, United Kingdom, 4th October 2015, Waters & Stanton Europe’s Ham store confirm the release of OpenSDR v 3.2.28 which compliments the Apache Labs SDR Radio products.
The new release has enhancements to the Radio Astronomy functionality within PowerSDR along with a new Spectral Noise Blanking system to complement the existing NB and NB2 noise blanking features. Other enhancements and more details of the release include the following:
PowerSDR/OpenHPSDR mRX PS v3.2.28 has been released. This release can be downloaded from the openhpsdr.org website. http://openhpsdr.org/download.php This release contains the following changes: Radio Astronomy (RA) Joe, K5SO – added Rx2 to the RA feature to allow both Rx1 and Rx2 data to be simultaneously collected/viewed – added a new control to the RA display to allow the selection among options of 1) simultaneous display of Rx1 data and Rx2 data, 2) display of Rx1 data only, or 3) display of Rx2 data only – added Rx2 data to the read/write-to-disk option from the RA window; data format for each line of the .csv file is time(secs), Rx1(dBm), Rx2(dBm) regardless of what option is selected for display in the RA window – added a compiler directive to try to resolve the EU vs US formatting issue of the previous RA read/write to .csv files Spectral Noise Blanker (SNB) Following the release of new Noise Reduction technology, NR2, earlier this year, this release includes another new tool for your “Noise Toolbox”: SNB, a Spectral Noise Blanker. There are many different types of noise/interference and so having an assortment of tools at your disposal is of great benefit. The Spectral Noise Blanker is of a very different type than our Wideband blankers, NB and NB2, and will address some additional impulse noise issues. It can be used along with NB/NB2 when beneficial. It also plays quite nicely with NR/NR2 to address both Impulse Noise (SNB) and Random Noise (NR/NR2) simultaneously. While NB/NB2 operate on wideband spectrum data and impact both the panadapter display and the S-meter, SNB operates differently and impacts only audio. SNB uses Linear Predictive Coding (LPC) to evaluate the spectral formants of its input. It then uses that spectral information to identify impulses and to synthesize replacement samples for the signal in regions where it has been corrupted by those impulses. Yes, it does not just zero or interpolate across corrupted samples, it synthesizes approximations of the original signal using the spectral information and the
samples before and after the impulse. This technology largely does not depend upon amplitude to identify impulses; therefore it can often detect impulses that are equal to or smaller than the amplitude of the signal and can clean signals when other blankers fail. Computing replacement samples requires quite a bit of matrix computation; so, to keep compute requirements within reasonable limits, SNB currently restricts audio bandwidth to roughly 300Hz to 5400Hz. This is a design trade-off which will be revisited as faster processors become available. To turn this blanker on, simply click the “SNB” button on the main console. (Note that NB and NB2 have now been moved to the same button.) In Setup, there are a couple threshold adjustments, “Threshold 1” and “Threshold 2”. However, the algorithm is self-adjusting and you probably will not be able to achieve much improvement by fine tuning these. Summary of your current Noise-Interference Toolbox: Impulse Noise * NB (Wideband) * NB2 (Wideband) * SNB (Spectral) Random Noise * NR (Variable-Leak LMS Algorithm) * NR2 (Signal/Noise Power Density Algorithm) Carriers & Similar * ANF (Automatic Notch Filter – Variable-Leak LMS) Noise / Interference Null * Diversity Reception [Requires a radio model with two ADCs] Peaking Filters * Audio Peaking Filter [for CW] * Dolly Filter [for RTTY] Expect future additions! Various Bug Fixes and features – added the ability to split the open collector outputs between VFOA (1-4) and VFOB (5-7). To use, click on the “4×3 Split” checkbox on the Setup=>General=>(Penny/Hermes/ANAN Ctrl) page. – added a ‘mask’ field to the static IP address feature. This allows using the correct broadcast address for the specific port the radio is on. This corrected a problem when using a static IP address when multiple adapters are present. See the Setup=>General=>Hardware Config. page. – added multilingual for ToolTip comments
– fixed the 6m panadapter display reading for the Anan-10E – fixed a problem with PowerSDR crashing on start-up when the Disable PA for HF/VHF is enabled – fixed an intermittent issue with diversity You WILL need to reset your database. If you have release v3.2.28 dated prior to 3 Oct 2015 you will need to manually uninstall it before installing this release. The installer will not automatically uninstall it for you. This only applies to the pre-release of v3.2.28 and not prior version numbers.
Thanks for Dough, W5WC for his dedication to the development of PowerSDR which can be used on many SDR platforms outside of that of the Apache Labs range. Waters & Stanton (W&S), Europe’s Hamstore are European distributors for the Apache Labs range of products and are one of the longest standing Ham Radio suppliers in the World with more than 42 years in business.
W&S also provide the largest dedicated Ham Radio demonstration facility in Europe with 12 independent operator positions and contest-grade antennas ranging from 160M through to 23cms.
For more information contact: Justin.johnson@wsplc.com
Recent Posts
Amateur Electronic Supply Signs Off
By Meg Jones of the Journal Sentinel Among ham radio operators, it’s known as the candy store. Amateur Electronic Supply sells radios, antennas... Read more
3Y0J Bouvet Island DXpedition Receives $100,000 from Northern California DX Foundation
The Northern California DX Foundation (NCDXF) has donated $100,000 to the upcoming 3Y0J DXpedition to Bouvet Island, which is set for late 2022. The D... Read more
Hawaii Hurricane ‘Lane’ and event updates
Photo: VE6AB Hurricane ‘Lane’ is affecting Hawaii with heavy rainfall of nearly 1 meter forecast along with high tides caused by the storm... Read more
US Amateur Radio Numbers Continue to Soar
Amateur Radio is alive and well! Growth in the US continued in 2015, with a record 735,405 licensees in the FCC’s Universal Licensing System (ULS) dat... Read more
2015 CQ WW Survey Results – part 2
The CQ WW Contest Committee conducted a survey of contesters from September 2 to 29, 2015. Invitations were sent to everyone who had submitted a log... Read more
What’s the best location for your mobile antenna ?
by Christian Barbu Mobile Antenna Placement When selecting a mobile antenna, there are a number of factors which significantly affect the ultimate per... Read more
Raspberry Pi FUNcube satellite telemetry decoder now available
The FUNcube Team has announced the availability of FUNcube CubeSat satellite telemetry decoder software for the popular Raspberry Pi computer board. T... Read more
FCC Invites Comments on Amateur Radio-Related Petition for Rule Making
The FCC has invited public comments on a Petition for Rule Making (RM-11826) from an Ohio radio amateur seeking to amend the Part 97 station identific... Read more
Antenna Gain Explained by KB9VBR
Check great article from KB9VBR – Antenna Gain Explained Also Visit J-Pole Antenna Shop Read more
Anytone AT-D878UV Dual Band DMR HT with APRS
Anytone AT-D878UV Dual Band DMR HT with APRS “Brand new from Anytone is the new AT-D878UV Dual Band DMR HT with APRS. This is the first r... Read more
AO-27 satellite celebrates 27 years in space
Stephan Greene KS1G reports the AMRAD-Oscar 27 (AO-27) satellite has celebrated 27 years in orbit On the AMSAT Bulletin Board he writes: Happy 27... Read more
VR-N7500 Mobile Radio Approved by CE-RED & FCC Certification
Vero VR N7500 Tech Specs UHF 40W,VHF 50W 136-174&400-470Mhz Multiple Bluetooth connections Full-featured APP settings Global Walkie Talkie With No... Read more
Chet Atkins, W4CGP – Guitar Legend
Chet Atkins Music great Chet Atkins has died at home in 2001 Nashville, TN. Atkins was known worldwide for his distinctive guitar style, his easygoing... Read more
AM Rally on April 1-3 Weekend an Opportunity to Try a Vintage Mode
If you’re not familiar with full-carrier amplitude modulation (AM) or have never used it on the air, you’ll have a chance during the AM Rally during t... Read more
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fopensdr-v-3-2-28%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
![HRD Alert Demo [ FT8-FT4]](https://qrznow.com/wp-content/uploads/2022/06/HRD-190x122.jpg)
![ARRL International Digital Contest Log 1.0 is Now Available! [ N3FJP LOG]](https://qrznow.com/wp-content/uploads/2022/04/277767452_459682099281210_1693865887720287369_n-190x122.jpg)
![Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]](https://qrznow.com/wp-content/uploads/2022/06/spe-90x60.png)
![Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]](https://qrznow.com/wp-content/uploads/2022/06/spe-180x120.png)
