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Updated Spectrum analyzer (markdown)

ErikS-web
2023-11-02 18:15:40 +01:00
parent bff1d44920
commit 59dc42db90
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Spectrum-analyzer.md

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Press `F` + `5 NOAA` to turn on spectrum analyzer.
The current VFO/Memory-frequency is the start-frequency of the spectrum-screen
The current VFO/Memory frequency is the **start frequency** of the spectrum sweep
![Spectrum analyzer](https://github.com/egzumer/uv-k5-firmware-custom/assets/148579604/80dfe424-f5d4-432b-9b95-32d116db9bd9)
# Button functions
* `1` / `7` - increase / decrease bandwidth of a single bar in the graph
* `4` - toggle number of bars in the graph
* `2` / `8` - increase / decrease frequency step size
* `5` - turn on frequency input box (value in MHz, `*` - period)
* `3` / `9` - increase / decrease maximum dB value (vertical scale)
* `1` / `7` - increase/decrease the channel separation of a single bar in the graph (typically 25.0 kHz)
* `4` - changes the number of channels to scan and toggles number of bars in the graph (typically 128x)
* `2` / `8` - increase/decrease frequency step size for `UP/DOWN`
* `5` - Shows a frequency input box to enter the lower sweep frequency. Enter the Mhz using the keyboard and press M. Frequency in decimals can be entered with use of `*`
* `3` / `9` - increase/decrease maximum dB value (vertical scale)
* `6` - toggle receiver bandwidth
* `* SCAN` / `F #` - increase / decrease squelch level
* `Side Button I` - exclude current frequency from future scans
* `*` / `F` - increase/decrease squelch level
* `0` - toggle modulation type (FM/AM/USB)
* `Side Button I` - exclude current frequency in the spectrum scan
* `Side Button II` - toggle backlight
* `PTT` - turn on monitoring mode for current frequency
* `EXIT` - exits to the previous screen/function
* `PTT` - switch screen to _**detail monitoring**_ of last received frequency (_see below_)
![Monitor Mode](https://github.com/egzumer/uv-k5-firmware-custom/assets/148579604/e5bbde26-06a8-4dd6-8434-74ae99a8e101)
* `M` - Scrolls through the parameters displayed at the bottom of the screen which can be adjusted with `UP/DOWN`
* `EXIT` - exits to the previous screen of the spectrum analyzer