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24 WMS420
Description
You can use the PT420 pocket transmitter with both dynamic microphones and condenser
microphones operating on a supply voltage of approx. 4 V. Naturally you may also connect an
electric guitar, electric bass or keytar.
The PT420 operates within a switching bandwidth of up to 30 MHz in the 530.025 to
931.850 MHz UHF carrier frequency range and offers up to 8 selectable carrier frequencies.
Control elements
1 ON/OFF switch: This slider has three
positions:
ON: The transmitter's power supply is turned
on.
MUTE: The audio signal emitted by the
microphone or instrument is muted. The
power supply and HF carrier frequency remain
activated.
OFF: The transmitter's power supply is turned
off.
2 Audio input jack: 3-pole mini XLR jack with
contacts for microphone and line level. The right
contacts are automatically assigned thanks to the
connector assignment of the recommended AKG
microphones or the MKG L guitar cable.
3 Antenna: Integrated flexible antenna.
4 Display: Shows the set transmission channel.
5 Control LED: This LED indicates the
operational availability of the transmitter.
LED is green: Battery is OK.
LED is red: As soon as the LED changes to red, the remaining battery power allows at
most one more hour of operation. We recommend exchanging the batteries as soon as
possible.
NOTE
If you use a rechargeable battery, the LED will change to red approximately 15 minutes before
the battery goes flat.
6 Battery compartment cover with integrated screwdriver.
7 Inspection window: The inspection window allows you at all times to check whether a
battery or a rechargeable battery is inserted in the battery compartment.
8 Belt clip: To attach the pocket transmitter to a belt.
9 Carrier frequency label: An adhesive label stating the carrier frequency band is affixed on
the back of the transmitter. The enclosed frequency chart provides further information about
the available frequencies.
10 CHANNEL: With this button, you can adjust the transmitter to one of up to eight different
carrier frequencies within the transmitter's carrier frequency band.
11 GAIN: This control serves to adapt the sensitivity of the audio input to the level of the
connected microphone or instrument.
12 Charging contacts: The recessed charging contacts allow you to charge a battery using
the optional charger CU400 without having to remove the battery from the battery
compartment.
NOTE
Turn the transmitter off prior to charging.
PT420 pocket transmitter
Figure 4: Controls on PT420 transmitter
+
-
11
10
12
4
1
2
5
8
6
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