Malahit DSP2 – HARD menu
31 July 2021 Malahit DSP2, SDR 1 Comment
The Malahit DSP2 offers very much options for configuration. Today we look at the HARD menu:
Hard menu options:
- ENC reverse: Change direction for decoder buttons 1, 2 or both buttons
- PWR ANT: Bias Tee voltage for a antenna or pre amp can be activated. Voltage is always the cell voltage from about 3,7v – 2,5v
- Vbat control: Configuration for the cell voltage, with “Low”, the receiver don´t have a protection for undervolting. Use better “Standard”. With “Standard” the receiver shutdown under 3,3v.
- SW antenna: 50 Ohm for a standard antenna, Hi Z for SW with a antenna like a telescopic one
- PREAMP: Enable or Disable PreAmp. ith the PreAmp you can make the signals stronger
- ATT: Attenuator, more dB the signal is weaker. It can help for strong signals
- RF GAIN: With this option you can change the gain of the receiver, higher number for a stronger signal. To much gain is not good for the signals, because the signal are to strong
- LNA/MIX UPGR: Gain reduction, if you enable this, the gain is weaker, responsible for enabling or disabling gain reduction
- MIX GR: Gain reduction, if you enable this, the gain is weaker, responsible for enabling or disabling gain reduction
- F correct: If you have a frequency shift, you can controll it with this function
- Sm correct: You can control the sensitivy of the S Meter
- BEEP LVL: Level of the beep sound of the controls
- Ind type: Change from SNR to dBm. “Signal to noise ratio” is an indicator of the signal quality. dBm is a indicator how strong is the signal
- Activity timer: The Malahit DSP2 shutdown after the time is configured
- Pre Gain: You can control the gain of the PreAmp, lower number for a stronger signal (0 is the strongest). To much gain is not good for the signal
PRE Gain has little effect on S-meter indication.
is this ok?
how to determine the effect of PRE Gain setting?