User's Manual

MTH400 User Manual
10
<BOOTLOAD> menu
This menu can be entered by turning on the transmitter while pushing at the same time the quick
channel setup button <CH> or connecting the device via IRDA using the IR Programmer for FW
update
Device is forced in bootloader mode to allow FIRMWARE UPDATE.
The following table sums up which parameters can be set and the related range settings.
MENU
PARAMETER
MEANING
RANGE SETTINGS
TUNING
CH
Channel
0 ÷ 59
GR
Group
0 ÷ 39 + SYNC GROUP
Freq
Frequency
It depends on the MTH400 Model:
1 470-640
2 566-798
3 510-698
AUDIO
AF Gain
AF Level
Gain of the
audio signal
-40dB ÷ +40dB step of 1dB
-54dBu ÷ +26dBu step of 1dBu
Phase
Audio signal
phase
0° or 180°
HP
High Pass filter
Flat/60/80/120/170/250/400 Hz
Noise R.
Noise reduction
ENR: Wisycom Extended-NR, noise optimized
ENC: Wisycom Extended-NC, voice optimized
RF/BATTERY
RF Power
RF Power
10mW or 50mW or 100mW (depending on the
power profile)
Battery
Battery type
Alkaline, NiMH or Lithium
LED
Led Light
Power switch
green
brightness
0 ÷ 16
Led Mode
It defines when
the power
switch led (see
Fig. 3) has to
become RED
None: never
ModPeak: when audio get close to saturation
PTT: when the PTT button is pushed
MIC
PTT Mode
It defines how
and what
information the
transmitter has
to send
Disable: when the PTT button is pushed, nothing
happen. (the transmitter sends AF+Tone
squelch)
Normal: when the PTT button is pushed, the
transmitter send a different RF signal. According
to the receiver configuration the audio can be
enabled/disable on LINE (and/or COM).
Muting: the transmitter doesn’t send the audio.
The voice is cut, it doesn’t enter to the
microphone
No Data: the transmitter sends neither tone
squelch nor battery data.