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Assorted ramblings from the developer


Pluto on Es'Hail 2

Here's a screenshot of my Pluto SDR on Es'Hail 2, this screenshot shows the suggested settings for pluto(bottom left-hand side).

Note the RX Gain is set to Slow Attack (Manual value is ignored) and the Visual is set to -40dB.


Release: 3.0.8

Download here [Link].

What's new / changed in 3.0.8:

Broadcast FM

New features and changes for 88 - 108MHz FM broadcast reception and the RDS decoder.

RDS decoding has been improved by making PI code detection mor sensitive.

US Callsign logic now uses data from NRSC for callsign and location.

Spectrum window now a docking pane. Display the spectrum window by selecting Ribbon Bar, Receive, Broadcast FM. 

Logging of station from the RDS decoding has been added, this is the RDS Logfile option. To display the logfile click the Log button in the BFM Spectrum.

The logfile has all the options you need:

  • Enable / Disaply updates
  • The number of recent entries displayed
  • Detail level (brief, full)
  • Font size for ageing eyes
  • Delete entries
  • Edit an entry
  • Export as text
  • Options

Click ••• to display the options.

Airspy Options

The Airspy options have moved from the ribbon bar to the Receive DSP panel.

USB Relay

The USB relay terminology has been changed to avoid confusion.

  • ON = Turn ON a relay channel (Activate).
  • OFF = Turn OFF a relay channel (Deactivate).

Data (IQ) Recording

Playback now correctly detects ELAD recerdings and displays the format as ELAD. later the contents of the elad chunk in the WAV file will be supported.

Scheduled Recordings

  • Now can select single file in the definition, this uses WAV RF64.
  • Fixed display issues.
  • Tidied up the code.

Geostationary Beacon

  • Increased bandwidth for LNBs with very serious drift!
  • Fixed crash when bandwidth changed past the minimum / maximum supported.

Frequency Database

AOKI URL updated and new format supported.

Font size selection for ageing eyes.

Defauly field order changed, will be user-configurable in a future release.

Perseus

The sample rates 192kHz, 96kHz and 95khz are now calibrated.

Satellites

Tidying up and extending the Select Satellite option. Instead of just selecting a satellite, pressing Select in the Satellite ribbon bar now display the Select Satellite window which provides an overview of the entries in the Satellite List as well as selection of new satellites.

Footprint configuration is now consolidated into a property page.

Narrow FM

Uses the original version 3 de-emphasis and has better peak volume control.

Pluto

Problems with the transmit signal bursting reduced by redesigned inefficient code, see Pluto support page for more information.


Es'Hail 2 Beacon
Es'Hail 2 Beacon

There's a big problem with consumer LNBs - they drift, and drift badly! One way of correcting this drift is to monitor the telemetry beacon, determine the actual received frequecy of the beacon and hey presto - we have the offset!

Quite a bit of coding involved, but when you decode BPSK you actually have the offset if you pay attention to the code. Add a nice waterfall so the user can select the beacon, add a bit of funk and we're more than half-way there. Here I'm plotting drift versus time. 

Also it's nice to see Es'Hail 2 being used more as people get their systems together.

Code will be in 3.0.7 - within a week I hope.

 


Satellite Footprints

As part of the fixes / enhancements for 3.0.5 I've added the optional display of footprint for additional satellites, lots of display options now available.

Coming soon!


Es'Hail 2

I'm watching the progress of Es'hail 2 with the satellite display in SDR Console. My plan is to put up a nice big dish and use the LimeSDR / bladeRF2 to access the first ham geostationary satellite.

This should be fun!


ISS Images, Dec 7th - 8th 2017

In total nine of the twelve were copied during the afternoon passes on December 7th and 8th 2017.

         


ISS Images, Dec 6 2017, 15:03 UTC

Excellent images copied from the ISS. radio is the Airspy HF+, 12 element X Yagi, satellite tracking etc. from SDR Console.

     


RadFxSat Fox 1B
RadFxSat Fox 1B

Picking up RadFxSat Fox 1B on her first pass over Cornwall, FM on 145.960 adjusted for Doppler. The initial TLE data is pretty accurate. Receiver is the Airspy HF+, antenna general log periodic for 130 MHz to 1.3 GHz.

Audio

Click here for an audio recording (MP3)

Station Info

http://www.sdr-satellites.com/


Pirates!
Pirates!

Listening to pirates on FLTSAT-8 with the HF+. Found the FLTSAT 8 TLE data on the internet, added it and let the software point the log periodic at the satellite. First time I've ever listened to the pirates - not very entertaining if truth be told.


Airspy HF+ & NOAA 18
Airspy HF+ & NOAA 18

Overhead Pass

Here's an example of the HF+ receiving the NOAA 18 APT weather satellite, the antenna is a log periodic covering 130 MHz to 1.3 GHz. The HF+ is very sensitive and very quiet - no mixer products, spurs, or artifacts at all.

    

    

Low Angle Pass

Here's an image from NOAA 18 but a moch lower angle - 13 degrees. You see noise on the image, but nethertheless an excellent copy.


Recent Posts

  • Transparent S Meter Posted 2 weeks ago
    Version 3.0.13 introduced analog S meters and resulted in requests for transparency. One of the big features of SDR Console is the use of Direct2D graphics which is a lot more complicated than the GDI/GDI+ used in many other ham radio programs such as Ham Radio Deluxe. Working out transparency wasn't easy, finally a Microsoft example showed me how to do this. A day when you don't learn something is a day wasted. Here's an example of transparency. This will be part of 3.0.14.
  • Release: 3.0.13 Posted 3 weeks ago
    Download here [Link]. What's new / changed in 3.0.13: General Fixed frequency display problem in the RDS display. 100.05 was displayed as 100.5. Minor change to logic when closing the Matrix window, linked to a memory leak. Reduced background thread start-up time. Added Equaliser… option to the Playback device selection.   The Radio Selection windows displays Connect when a V3 Server is selected, otherwise Start. New option to replace 0 with O in the main frequency display.   Added Google Turbo and Inferno colour schemes.   Markers Memory definitions can now be shown as markers: new option in Markers dropdown and on the memories pane of the ribbon bar. Display of markers more efficient. Enhanced the marker display logic, allowed more room when markers overlap. Recordings Audio recordings made while playing an IQ recording are now timestamped with the time from the playback, not the current time. Added Status option to Playback pane in the ribbon bar. When selected the playback status is shown in the waterfall (the default). If not selected then playback status is not ...
  • Google Turbo Posted 3 weeks ago
    Turbo, An Improved Rainbow Colormap for Visualization  https://ai.googleblog.com/2019/08/turbo-improved-rainbow-colormap-for.html On Tuesday, August 20, 2019 Google posted an interesting colour scheme which they named 'Turbo'. Read more about this in the blog entry (link is above). Below is the colour map in action on the 25m shortwave broadcast band. As of 3.0.13 this is a standard colourmap[ in SDR Console. Also of interest is the use of a SNR (Signam to Noise) S Meter option.
  • S-Meters Posted 3 weeks ago
    After much pestering by users, I finally added an Analog S-meter to SDR Console. These will be available in 3.0.13, coming to a desktop near you soon. Background A few weeks previously a reasonable logic was implemented for measuring the noise floor. Purists will not be happy, but they rarely are, but it works for me. Take the output from the SDR radio, ignore 15% of the bandwidth at the high and low end of the output to avoid the ant-alias filtering, and we're left with a healthy 70% of the signal. Now sort the FFT bins by value, take the mean of the lowest 10% and that's the noise floor. Digital Starting with the standard digital metere: Analog Here are a few screenshots of the Analog S Meter. First a tradition meter in S units. Red = peak signal Yellow = current signal Grey = noise floor   Here's a dBm meter, same colours as above.   And here.s a Signal to Noise (SNR) meter.
  • Pluto on Es'Hail 2 Posted last month
    Here's a screenshot of my Pluto SDR on Es'Hail 2, this screenshot shows the suggested settings for pluto(bottom left-hand side). Note the RX Gain is set to Slow Attack (Manual value is ignored) and the Visual is set to -40dB.
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