 | Reference Level The reference level is the top graticule line on the display, and can be set from –50 dBm to –140 dBm. A value may be entered from the keypad, use the ± key for a minus sign. After entering the value press the dBm submenu key or the Enter key. The Up/Down arrow keys change the reference level in 10 dB steps, and the Left/Right arrow keys change the value by 1 dB. Scale The scale can be set in 1 dB steps from 1 dB per division to 15 dB per division. The value can be changed using the keypad or the Arrow keys. |