1: A/B Receiver LEDs - When signal is being received, one of these will be lit
orange, showing you whether the (left) “A” or (right) “B” receiver is currently being
used. The UM1 constantly scans its two antennas and automatically selects
whichever is receiving the strongest, clearest signal. This True Diversity switching
is completely inaudible, but it effectively increases overall range while virtually
eliminating potential interference and phase cancellation problems.
2: Meter - This set of three multicolor LEDs acts as a meter, indicating either bat-
tery power or the strength of the incoming RF signal. This meter can also be dis-
abled altogether to conserve battery power. See #15 on page 11 for more
information.
3: Peak LED - This LED lights red when output signal from the UM1 is at the onset
of clipping (that is, when it is on the verge of being distorted). If you see this light
during operation, move the microphone further away or lower the output level of
your instrument or transmitter. For more information, see the section entitled
“Setting Up and Using the AirLine System” on page 17 in this manual.
4: Power switch - Use this to turn the UM1 power on and off.
5: SQ (Squelch) Level control - This control determines the maximum range of the
UM1 before audio signal dropout. Although it can be adjusted using the supplied
plastic screwdriver, it should normally be left at its factory setting. See the “Setting
Up and Using the AirLine System” section on page 17 in this manual for more
information.
9
Samson AirLine
Guided Tour - UM1 Receiver
SAMSON
SAMSON
MAX
MIN
POWER
ON
SQ LEVEL
UHF MICRO DIVERSITY RECEIVER
B
A
LOW
MID HIGH PEAK
800MHz
2
3
1
5
7
4
6
1
+
-
ENGLISH
