G4ZFQ's Pages Softrock, SDR, Greyline (Grayline), other mainly Radio Oriented. And two essential Softrock sites.
I have been an active member of the Yahoo! Softrock40 Group for more than four years. These pages are basically a summary of subjects raised there.
Modifications to the Wiring of Ensemble Isolation Transformers.
July 2012 all Ensembles have a fault in the PCB layout. Page checked by Tony KB9YIG, the Softrock kit supplier.
And notes to rectify low 20m output from some 40/30/20m Ensembles.
Softrock USB Driver and Controller
Installation, faults. http://sites.google.com/site/g4zfqradio/attiny_usb
SDR on Acer Netbook
Initial driver installation on a Windows 7 Acer netbook. Notes about using it with SDR. A few notes about Sodira which includes a DRM decoder. http://sites.google.com/site/g4zfqradio/sdronasus
Basic details for a beginner with an assembled SDR. Please note a soundcard SDR is not "Plug and Play" Understand you need to check transmit with a receiver first. http://sites.google.com/site/g4zfqradio/configuring-a-softrock-sdr
Showing SDR# setup and operation Rocky. Soundcard settings, testing. A few laptops known to have stereo inputs. http://sites.google.com/site/g4zfqradio/connecting-soundcard-sdr-to-computer
More soundcard settings
Showing Rocky, ground loops. http://sites.google.com/site/g4zfqradio/sdr-with-soundcard-basic-faults
Explanation of "signals" seen at the centre of the SDR display. http://sites.google.com/site/g4zfqradio/soundcard_sdr_ground_-earth-_loops?pli=1
Ground loops and audio settings with HDSDR used for illustration. http://sites.google.com/site/g4zfqradio/more-on-ground-loops-and-audio-settings
Calibrating the Si570
Using HDSDR. Do not use software calibration with a Softrock.
Some things clarified. Explanation of usage and error messages displayed. http://sites.google.com/site/g4zfqradio/extio-or-cfgsr-some-notes
All that I know. http://sites.google.com/site/g4zfqradio/soundcard_sdr_software
Installation and usage. http://sites.google.com/site/g4zfqradio/installing-and-using-hdsdr
Setting IQ balance https://sites.google.com/site/g4zfqradio/hdsdr-iq-balance
Fundamental settings for digimodes beginners, receive only. https://sites.google.com/site/g4zfqradio/hdsd r_receive_digimodes
Use with digimodes https://sites.google.com/site/g4zfqradio/hdsdr-cwskimmer-and-Other-Digimodes
This page, https://sites.google.com/site/g4zfqradio/hdsdr_digi-modes gives many details about HDSDR and digimodes. With examples of CAT and DDE (Orbitron or SatPC32 controlling HDSDR for Doppler compensation).
My preferred way for a HF panadaptor. Ideally take the Ensemble antenna connection from the transceiver. Using an Ensemble with a conventional transceiver as a panadaptor.
Using with a conventional receiver or transceiver as an IF panadaptor.
http://sites.google.com/site/g4zfqradio/hdsdr-if-pano Ham Radio deluxe controlling HDSDR with DDE .
Using HDSDR with a RTL donglehttps://sites.google.com/site/g4zfqradio/hdsdr-use-with-rtl-dongle And using the dongle as an IF panadaptor with a conventional rig.
How to set HDSDR for measuring signal levels, can be reasonably accurate if you have a standard. Using HDSDR for signal measurements, the S meter and Spectral Display.
Autocorrelation (and Cepstrum), new features November 2013. If you want to use this feature you probably know more about it than I! https://sites.google.com/site/g4zfqradio/hdsdr-autocorrelation
Virtual Serial Port for CAT https://sites.google.com/site/g4zfqradio/hdsdr_digi-modes#HDSDR%20accepts
Streaming Audio Between HDSDR and Other Programs https://sites.google.com/site/g4zfqradio/hdsdr_digi-modes#Virtual%20Audio%20Cable%20(VAC)
RX and TX Image adjustment for HDSDR
https://sites.google.com/site/g4zfqradio/hdsdr-iq-balance This page should help for other software.
Alberto's Winrad help with illustrations updated to HDSDR.
To be completed one day..
Using HDSDR with Wine on Linux https://sites.google.com/site/g4zfqradio/using-hdsdr-with-wine?pli=1
SDR Sharp #
Notes for it's use.
Embedded DRM, some notes. The demo versions work but do not save settings.
Setup and some operation. But most is on Rocky's web site.
for personalised frequencies.
Matching BS170 devices
in the RXRX.
TX signal levels in a Softrock RXTX.
Making diode probes. Checking the 1dB compression point.
Softrock Si570 Internal power, other mods.
for the Si570. TXRX Leds. etc. A way of making an IF tap from a transceiver for a panadaptor.
Adding the LPF for a Softrock Ensemble RXTX.
The additional LPF as required by many RXTX versions
Add USB control for older Softrocks
to a Softrock. Also shows some of the crazy ways I've done that.
Isolating the antenna socket.
Can overcome ground loop problems.
VAC and Virtual COM ports with PSDR. http://sites.google.com/site/g4zfqradio/softrock-wspr-psdr-and-vac An alternative to VAC http://vb-audio.pagesperso-orange.fr/Cable/index.htm One cable free.
Program the ATTiny USB device
Si570 and Softrock Information
Use "Ctrl - F" to search this big page for a keyword Softrock construction, Soundcards, Computers, Si570 information and control methods, just about everything associated with Softrocks here...
Essential Softrock Sites
Softrock Yahoo! Group http://groups.yahoo.com/group/softrock40/
Purchase the Kits, or Assembled Boards. http://fivedash.com/
Robby's site for construction of current Softrocks http://www.wb5rvz.org/
Older Softrocks http://www.wb5rvz.com/sdr/ A big site. Started as step-by-step construction site. Now has pages for everything, descriptions of current and obsolete Softrocks, setting up, software, fault finding.
Old pages superceded http://www.wb5rvz.com/index.html
Using the FCD with WSPR-IQ, and with CWSkimmer no intermediate SDR program. https://sites.google.com/site/g4zfqradio/using_the_fcd
Some notes about Programming Hans Summers' "Ultimate" multimode QRP transmitters. And some older GPS units that work with them.
Tests on various soundcards
Isle of Wight Locator Maps.
Two maps showing WAB and Maidenhead squares on the Isle of Wight. http://sites.google.com/site/alan4alan/wightlocators
Google Greyline Pages A few pages showing "research" using Softrocks.
UK 5MHz Beacons, monitored with Softrock. http://g4zfq.alotspace.com/5MHzBcon/RAL=Weekly.htm
Radio signals don't go straight from TX to RX. http://sites.google.com/site/g4zfqradio/ok0eu-beacon-screenshot-3-4-august-2010
My beginnings with satellite TV and radio. http://sites.google.com/site/alan4alan/
Main site index http://homepages.wightcable.net/~g4zfq/
http://g4zfq.alotspace.com/ more radio related pages.
NOTE! These pages may be updated at any time when corrections or new information are added.
alan4alan googlemail com March 2013