S-Meter plugin for FM-DX Webserver

This plugin displays a signal meter below the signal data.

Displayed outside or within the SIGNAL container, your choice.

• Download the latest zip file
• Transfer SignalMeterSmall folder, and SignalMeterSmall.js to FM-DX-Webserver plugins folder
• Restart FM-DX Webserver if required
• Login to Adminstrator Panel and enable plugin

Options

Open pluginSignalMeterSmall.js with a text editor to find available options at the beginning of the file.

OutsideField: Where the S-Meter is to be displayed, within the SIGNAL container, or below it.

enableSquelch: Server-side squelch that mutes all signals below the set threshold. Squelch settings does not affect other listeners.

enableLowSignalInterpolation: Because approximately -123dBm is the reported noise floor with TEF receivers, the S-Meter will never fall below this level (approx. S4). This attempts to calculate and correct those values based on the signals below -114dBm (just below S6), where true signal deviation from reported signal begins.

squelchMutePercentage: Volume percentage while squelch is active. Recommended setting is either 0 or 1.

squelchNeedleSmall: More discreet needle that might be harder to see.

meterBeginsAtS0: Limits the meter's range from S0 to S9+60.

useThemeColors: Background uses the webpage's theme instead of the default grey style.

radioNoiseFloor: The reported dBm signal reading with no antenna connected, used to calibrate enableLowSignalInterpolation.

v1.3.4

• Added intergration with Spectrum Graph plugin

v1.3.3

• Fix for squelch volume

v1.3.2

• Fix compatibility issue with latest PEAKMETER plugin

v1.3.1

• Added support for PEAKMETER plugin element

v1.3.0

• Slight frames per second increase
• Minor blur effect to match recent FM-DX Webserver version
• Background colour and squelch needle match theme
• White canvas text inverted for dark text themes with bright backgrounds
• Squelch volume internal setting
• Strict "S0-S9+60" meter range internal setting
• Small squelch needle display internal setting
• Minor bug fixes

v1.2.2

• Added squelch touch and drag ability for touchscreen devices

v1.2.1

• Fix for FM-DX Webserver v1.2.4 compatibility issues

v1.2.0

• Added client-side squelch

v1.1.5

• Improved alignment based on window dimensions

v1.1.4

• Fix for some cases of canvas being cropped

v1.1.3

• Corrected decimal place calculations for all signal units

v1.1.2

• Aligned signal meter appearance and positioning

v1.1.1

• Added option enableLowSignalInterpolation
• Signal strength decimal place included in calculations

v1.1

• Visual improvements
• Corrected slight signal inaccuracies
• Added lighter grey bar to display signal peak (for current frequency)
• Removed separate image file
• Optional placement within or outside SIGNAL field (edit pluginSignalMeterSmall.js)

v1.0

• Public release

Original source code located at: https://github.com/NO2CW/FM-DX-Webserver-analog-signal-meter