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Updated to 2.77  Significant upgrade of unbalanced/balanced schematic; log scale on circular S21 display Updated to 2.76  Corrected yet another Cauer error trap Updated to 2.75  Added 'Tune Apass' button on plot screen Updated to 2.74  Corrected oddity in MDerived highpass data entry Updated to 2.73  Total rewrite of Cauer error trapping Updated to 2.72  Refined Design screen error trapping Updated to 2.71  Found and corrected error in Monte Carlo stepsize assignment Updated to 2.70  Complete rewrite of .CIR and .SUB file writers Updated to 2.69  Added SPICE subcircuit file writer and LTspice filter symbol (.ASY) writer Updated to 2.68  Added generic SPICE file (.CIR) writer Updated to 2.67  Force LTspice .ASC files to have periods for decimal places; cosmetic and minor interface upgrades Updated to 2.66  Increased plot Xaxis divisions to 20; allowed negative jX values in editor Updated to 2.65  Added AutoScale button to plot and analysis pages; allowed diplexer design to go to 10 GHz Updated to 2.64  Corrected missing element in Manual Entry routine Updated to 2.63  Total rewrite and upgrade of diplexer routine Updated to 2.62  Found and corrected errors in page/screen sizes Updated to 2.61  Found and corrected error in file reader; updated editor, file writing and file reading Updated to 2.60  Added schematic display option to show the filter as it would be in a balanced configuration; improved erroneousvalue entry handling in circuit editor Updated to 2.59  Clarified Cauer odd/even entry areas; polished design and editor pages Updated to 2.58  Added capability to change return loss reference value to editor page Updated to 2.57  Found and corrected error in transmission line math routine when line lengths are exactly 90 degrees; limited S11 and S21 to 120 dB Updated to 2.56  Found and corrected S11 and S22 phase error in Touchstone file writers (Versions 1 and 2) Updated to 2.55  Added bandpass filter modulationresponse routine Updated to 2.54  Complete rewrite of transientresponse routine Updated to 2.53  Added Entry Assistance screen; revision of Analysis screen Updated to 2.52  Found and corrected error in Cauer highpass design routine; other cosmetic upgrades Updated to 2.51  Complete rewrite of Wind Inductor routine Updated to 2.50  Rewrite of all subroutines for uniform appearance; limitsediting bugfix; many cosmetic upgrades Updated to 2.49  Complete rewrite of circuit editor and manual componententry routines along with upgrades to schematic display and design inputs Updated to 2.48  Complete rewrite/update of inductorspecification routine Updated to 2.47  Upgraded plotting screens to show on the screen the point where the mousedown datapoints are being taken; Smith Chart seriously upgraded Updated to 2.46  Upgraded Design page to prohibit problems resulting from missing bandpass/bandstop center frequency, or missing topology entry Updated to 2.45  Corrected filereading and filewriting routines to ignore unused numbers in memory; corrected Cauer normalizedvalue readout Updated to 2.44  Upgrade normalizedvalue routine; added option to send normalized values to printer Updated to 2.43  Major upgrades to each of the routines on the Design page Updated to 2.42  Major upgrade to Smith Chart routine Updated to 2.41  Major upgrade to Monte Carlo routine Updated to 2.40  Changed overlay color scheme Updated to 2.39  Corrected erroneous saving of limits areas to file Updated to 2.38  Corrected error causing plot type to change unexpectedly Updated to 2.37  Corrected error in "specify inductor" routine Updated to 2.36  Major revision of Manual Component Entry and Editor pages, revised menu system, added aspectratio correction capability Updated to 2.35  Added toroidalinductor turns calculator, Smith Chart aspect ratio correction capability and total rewrite of menus Updated to 2.34  Refined LTspice filewriter Updated to 2.33  Changed orderentry to up/down button style; forced location of Last Session file Updated to 2.32  Discovered and corrected error in frequency printout for regions using comma for decimal Updated to 2.31  Added "Instant Help" button to the Design page to assist in Family selection Updated to 2.30  Added "Instant Help" buttons to the Design page to assist in Topology selection Updated to 2.29  Updated Help system Updated to 2.28  Added endsections option to Constantk family (this in addition to the Mderived family); updated Help system Updated to 2.27  Editor now disallows termination or resistorvalue entries less than .01 ohms Updated to 2.26  Correct various plot top definition entry oddities Updated to 2.25  Add option to show "magnified" plot on Transmission graph to reveal detail in lowloss region. Updated to 2.24  Changes to design page to prevent design of families requiring passband ripple when no such entry is present. Updated to 2.23  Add Mderived family with up to five specifiable zeros; update Help system. Updated to 2.22  Eliminate ProLite option; miscellanous upgrades. Updated to 2.21  Rewrite of bandpass impedancematching routine. Updated to 2.20  Add nominalvalue plot(s) at end of Monte Carlo routine. Also allow overlays to be placed on top of Monte Carlo display. Updated to 2.19  Remove revision number checking, fix tuning mode error. Updated to 2.18  Added resistors to those elements used for the Optimization and Monte Carlo routines. Updated to 2.17  Added LTspice schematicwriting Note: Tonne Software has no connection with Linear Technology Corp. Updated to 2.16  Total rewrite and expansion of bandpass Impedance Matching routine and associated Help system Updated to 2.15  Added tabulateddata file writing Updated to 2.14  Correct conditional errors for Optimizer maximumallowedtime and limitdeletion Updated to 2.13  Correct subtle plotcolor error in Monte Carlo and Optimizer routines; upgrade Exit message Updated to 2.12  Total rewrite of Diplexer routines and associated Help system; minor cosmetic textsize changes Updated to 2.11  Rewrite of Monte Carlo and Optimization routines; notice design changes and suggest saving prior to retrieving a new design; upgrade Help system. Updated to 2.10  Rewrite overlay plotting including simple deletion of overlay files; print all overlay files on hardcopy outputs (to duplicate screen); upgrade Help system. Updated to 2.09  Correct error in coupledinductor component in the optimization routine; minor interface improvements. Updated to 2.08  Neartotal rewrite of Plot page menu and Help graphics. Updated to 2.07  Printing problem resolved; nearly complete rewrite of menu and help system. Updated to 2.06  Cosmetic only; most text size as well as graphics now independent of screen resolution. Updated to 2.05  Add another errortrap to Cauer design. Updated to 2.04  Add errortrap to Cauer design. Updated to 2.03  All outputs to printer are now routed via Printer Selection windows. Updated to 2.02  Savefile (an internal operation) now forces use of a period for decimal delineation to allow operation in global regions which use a comma for decimal Released as 2.01  June 2004 