G8JCFSDR Download

Click here to join G8JCFSDR
Click to join G8JCFSDR

Latest Version 19 December 2007 - Ver 1.00 Build 216 -

G8JCFSDR (Build 205) Full Install, Mirror

Build 216 Update, Mirror

HamLib DLL Pack , Mirror

Quick Start Guide, Mirror

See bottom of page for older releases

Instructions for Use

If you are having problems with installing or running G8JCFSDR you can try manually installing the software by following the steps on that page - with any comments - also take a look at the Problems ? section on the Shaft Encoder page.

Build 205

1)    Full install - no need to install build 147 first
2)    OS Restriction removed, so it should install on VISTA, but see VISTA Issues for VISTA specific workarounds
3)    Bit-bang mode over FTDI FT232 chips has been made much faster, this is most noticeable when using the NTI DRB30, the DRTI and the Elektor 3/04
4)    Elektor 3/04 over FTDI US232C converter now works !
5)    B/W display on the Spectrum Analyser now shows the correct width - Default Colour changed to Gray
6)    There is a dead patch on Long Wave between 175~188KHz in build 198, in this build, you should be able to tune in 1KHz steps right across LW band
7)    Have added the other inputs on the Elektor IQ/SDR, Aux1, Aux2, Aux3
8)    The extended panel for Elektor IQ/SDR support is only visible when Elektor IQ/SDR is selected, for all other rxs this panel is hidden and the G8JCFSDR display is re-sized accordingly
9)    When the RX is off, U can adjust the scope display controls, eg Hz/Div and adjust the spectrum display - useful for examining signals in depth
10)    New Quick Start Guide with Soundcard IQ checking instructions
11)    HamLib DLLS now available as an install program

Other small fixes here and there.

Build 198

1)    ELEKTOR May 2007 USB SDR Support added - Run ELEKTOR s/w first, and Upload InitCal.bin.
2)    Full Speed USB Support for serially controlled RXs like the DRT1, ELEKTOR DRM - FTDI UC23R - select UC232 in Config. Uses Async Bit-Bang mode, so full speed unlike usual USB<->RS232 converters - Highly recommended and very good value - great for notebooks

Build 191

1)    NTI DRB USB ADP support added

Build 190

1)    HAMLib Support added - Download HamLib DLL Pack

Build 187

1)    Fixed problems for IQ Xtal controlled downconverters such as FunkAmateur SDR, and Soft Rock - these had got broken by Build 168

Build 186

1) Supports the NTI DRB30
2) Supports IQ receivers using CY27EE16 I2C over serial port for IQ VFO - /4 only, 100KHz~30MHz, 1KHz steps see http://www.b-kainka.de/iqrx.htm & http://www.b-kainka.de/iqrx3.htm
3) Supports IQ receivers using AD9851 for IQ VFO with /2 or /4 option
4) Supports IQ receivers using AD9951 for IQ VFO with /2 or /4 option (partially tested) 4) Timing in the parallel & serial i/f has been been corrected
5) Synchronous AM, SAM, demodulator for single ended downconverters, eg DRT1, Elektor DRM, NTI DRB30
6) Support for AD9835+CY27EE16 combo for IQ rx - see http://www.elexs.de/iq5.htm
7) Error handling improved
8) Ability added to configure which bits on the parallel i/f can be used for IOUPD/SCLCK/SDATA
9) Re-instated ability to select Com ports under Serial I/F tab in Config 10) Changed SMeter so that it only sees signals within selected bandwidth

IQ Support - (Build 168)

Full support for IQ down-converters, eg Soft Rock, Funk Amateur, & ELEXS AD9835+CY27EE16 combo. Also support for  an AD9850 LO followed by the classic 74AC74 divide by 4 arrangement.
Select Model number in Config from drop down list. "IQ, Crystal Controlled" is a generic model covering all Xtal controlled IQ downconverters. Set the Xtal frequency.
Build 168 only provides 24KHz of spectrum display at a time. To tune/view the 'upper part', click on "IQ Upper" checkbox

New/Fixes - (Build 147)

1)        Change any colours on the SDR - See Controls TAB in configuration
2)        Mirror the Notch filter, ie see what the notch filter is cutting out
3)        Start of IQ downconverter support - see Config - General Tab, Select  IQ Xtal Rx
4)        Fixed incorrect detection of iSPL
5)        Lots of small stuff all over the place

Changes/New:- (Build 126)

1)        Asymmetrical IF Filter/Passband Tuning - AM/BC only - Thanks Wolfgang - v. good for eliminating Broadcast AM adjacent-channel interference
2)        Notch Filter display shows Notch width - Thanks Wolfgang
3)        Notch filtering at AF or IF frequencies - use Pre-Demod to see IF notching in action, use AF-Out to see AF notching in action
4)        Shift + Scrollwheel gives large changes - hold down SHIFT and then scroll the mousewheel
5)        Ctrl + Scrollwheel gives very fine adjustments - hold CTRL and then scroll the mousewheel
6)        SMeter display shouldn't flicker anymore - double buffering implemented
7)        Smoothing of spectrum display now user controllable 1~24 sampling periods
8)        More persistence between executions, ie the SDR remembers and restores more settings
9)        Non-English language support improved - most things now in KHz or Hz
10)      Chn2 of Spectrum Display now shows IF Input before filtering when showing Pre Demod signal - Chn1 shows actual filtered signal
11)      AGC settings stored with each preset
12)      Improved error handling - should eliminate the iSPL "N<=0" error
13)      Lots of detailed fixes - Thanks Friedrich
14)      AutoDDSRefresh feature - Thanks Kjell/Michel - user selectable option to ENABLE periodic re-initialisation, 1~1.5secs, of DDS chip - Do NOT enable if using simple/low-cost USB/RS232 converters, can cause SDR to stall
15)      Multiple Soundcard support - SDR remembers soundcard selection between executions - supports IF input on one soundcard, with AF output on different soundcard
16)      DRM mode now outputs DRM signal at 12KHz after IF Filtering and Notch Filtering if you want to use Virtual Audio Cable, VAC, to feed SDR output into DREAM input
17)      Starting G8jcfsdr_drt1.exe with a command line parameter of "trace" generates startup logging file in c:\g8jcfsdr_drt1.log, ie g8jcfsdr_drt1.exe trace
18)      User settings for each filter selection, ie you can change the default filter cutoffs for each pre-defined filter setting
19)      User settings for each AGC selection, ie you can change the default Attack & Decay times for each pre-defined AGC setting
20)      S/W version now displayed - Thanks Friedrich - see Power frame
21)      Tuning by scrollwheel over 'scope mechanism - Thanks Michel - Enable feature in CONFIG - then scrollwheel will tune SDR when mouse is over 'scope. Height up the 'scope determines increment. 10Hz at bottom, 1000Hz at top, 500Hz in the middle etc.

a)        Press CTRL when over a preset to toggle the preset detailed display
b)        Right mouse click over scrollable labels to reset the control to its default value
c)        Tune the SDR by left-clicking on a signal over the Spectrum display - tunes to the nearest KHz
d)        Single left mouse click over a digit on the Tuned Frequency display locks the tune rate to that digit - double click gives free-tuning mode
e)        Single left mouse click over the Virtual Tuning Dial cycles through shaft encoder tuning rates
f)         Shift+Left Click on a preset stores the SDR's current values to that preset - also try Right Click over the preset

Previous Versions:-

Build 63, Build 42, Build 30, G8JCFSDR_DRT1 (Build 87), G8JCFSDR (Build 89) Alpha Release - Elektor DRM & DRT1 , Update G8JCFSDR Build 89 to Build 113  (Download UnZip & Copy .exe),   G8JCFSDR(Build126), G8JCF_Build147, G8JCFSDR_Build168, G8JCFSDR_Build186, G8JCFSDR_Build187, G8JCFSDR_BUILD190G8JCFSDR_Build191, G8JCFSDR_Build198, HAMLibDLLS.ZIP