Click an icon to download RF Workbench only after you have read and agreed to the Shareware terms.
See where RF Workbench (formerly TxRx Designer) is credited here in an article by Harold H. Kinley, C.E.T.

NOTE: If you have either Microsoft Excel or Sun OpenOffice, then you will be much better off using RF Cascade Workbook for the cascade calculations and the filter responses. The results are the same, but the convenient spreadsheet format allows you to use an infinite number or stages all in one file. It does not, however, have the Spur Web feature for calculating mixer spurious products - for that, use RF Workbench.

System Requirements:   80386, 2 MB RAM, 1 MB Hard Disk, VGA Color Monitor, Mouse

◊◊◊	Update: DOSBox (free) will allow a DOS screen capture of any RF Workbench screen! It also fixes "The NTVDM CPU has encountered an illegal instruction," errors.	◊◊◊	When unzipping "rfwb40b.zip", be sure to select the option to re-create the subdirectories. System Screen Spur Web Screen Planning Screen
Thanks to Mr. Ted Bruce for discovering this method! Click Here
Note: Neither Windows XP nor Window Vista supports DOS screen captures for pasting into a document or graphics program. None of the 20 or more programs I have tried - not even PrintShop - will do the job. Everything works fine up through Win 98 and even Win ME. In XP, you can still run RF Workbench and save/open files. As always, you can download RF Workbench by clicking on one of the icons above, and see if it works for you. Note: Some Vista systems have not been able to run RF Workbench due to video driver issues. Most people have been able to make it work.

• Gain Blocks: Gain/Loss, NF, IP2, IP3, P1dB, TC.
• Mixers: Conv Loss/Gain, NF, IP2, IP3, P1dB, TC, LO Pwr, RF Pwr, Single-Tone 9x9 Spur Table (loadable from file).
• Filters: fC, BW, fU, fL, N, IL/Gain, Ripple, NF, IP2, IP3, P1dB, TC; {Ideal, Butter, Cheby, Bessel}. Calculates effective noise BW. Calculates 3dB BW for Cheby.
• Input: Linear sweep or data file.
• LO: Fund Pwr, 2nd Harm Pwr, fC, BW, fU, fL, Fixed/Tracking.

• Plots of amplitude and group delay versus frequency.
• Dynamic cursor readout.
• Absolute and relative cursor readout modes.
• Auto or manual scaling of axis limits.
• Scale zoom with mouse.
• Customize plot colors and which plots to view.
• View a table of calculated values in a window.

• Unique graphical search method for simple frequency plan determination.
• Tracking and fixed LO models accommodated.
• Specify harmonic range to search.
• Customize in-band and out-of-band colors.
• In-band spur products listed in table with labels placed on plot.
• Open spur level calculation window for exact frequency and amplitude.

• Up to five stages on one screen.
• 3-dimensional frequency plan graph with dynamic cursor readout.
• Two modes: (1) You enter stage parameters and let RF Workbench calculate input/output results or (2) You enter the stage inputs/outputs and let RF Workbench calculate the worst case requirements for each stage that will ensure meeting system specifications.

• Cascade Parameter Graph: A 3-D view of how the gain, NF, etc., propagate through the system at each component output.
• TX/RX Path Budget: Enter transmitter, antenna, free space path, and receiver parameters to calculate power level, SNR, NF, etc. at receiver output.
• Dynamic Range: Calculate SNR, dynamic range, spurious-free DR, noise power, etc.
• I/O Conversion: Convert component parameters from input to output, and vice versa.
• Spur Calculation: Calculate amplitude and frequency values for spur products that include mixer suppression, system gains/losses, and filter responses.