diff --git a/Spectrum-analyzer.md b/Spectrum-analyzer.md
index 1148ca0..2c584ea 100644
--- a/Spectrum-analyzer.md
+++ b/Spectrum-analyzer.md
@@ -6,18 +6,18 @@ The current VFO/Memory frequency is the **_start frequency_** of the spectrum sw
## Button functions
-* `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
-* `*` / `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
-* `EXIT` - exits to the previous screen/function
-* `PTT` - switch screen to _**detail monitoring**_ of last received frequency (_see below_)
+* `1` / `7` - increases/decreases the channel separation of a single bar in the graph
+* `4` - changes the number of channels to scan and toggles the number of bars in the graph
+* `2` / `8` - increases/decreases frequency step size
+* `5` - shows a frequency input box for lower sweep frequency. (value in **MHz**, `*` - decimal point)
+* `3` / `9` - increases/decreases maximum dB value (vertical scale)
+* `6` - toggles receiver bandwidth
+* `*` / `F` - increases/decreases squelch level
+* `0` - toggles modulation type (FM/AM/USB)
+* `Side Button I` - excludes current frequency from the spectrum scan
+* `Side Button II` - toggles backlight
+* `EXIT` - exits to a previous screen/function
+* `PTT` - switches screen to _**detail monitoring**_ of last received frequency (_see below_)
# Detail Monitor screen