Cw 100r updating
Allows one LP-100A to use two couplers, with auto-sensing and switching to the active coupler.Great for SO2R operation or when your transmit paths are different for HF and 6m * Several new menus for additional customization of user preferences * LP-100A now integrated with * Graphic VFD display with high contrast non-glare neutral density filter * Front panel power switch * Large scrolling call sign screen saver * Setup screen for call sign entry * Setup screen for display brightness * Setup screen for screen saver timers* Only meter with simultaneous bargraphs for Power and SWR (or Power and Ref Pwr). 90 segments gives 1% tuning resolution with standard bargraph range settings (adjustable)Here is a link to the original QEX article on the LP-100.It shows the power response of a homebrew low pass filter, as well as the input impedance when terminated with a 50 ohm load.
Included are antenna plots of R j X, SWR, RL, Smith and the newly added Power display.
Also included are comparisons of Plot to my HP VNA with a 2-30 MHz sweep of a reactive load I use for calibrating the LP-100As, and with a pi-net filter.
The filter demonstrates the versatility of the LP-100A and Plot program.
Notice how difficult it would be on the 80m plot above to determine the resonant point by only looking at resisance (or SWR for that matter).
But it is a trivial task to see the resonant point by looking at the phase angle.
Editing is allowed on all plots which involve sign, including R j X, Z/Phase and the Smith Chart.