User Manual
2000 Series Installation and Operation
4
Receiver Controls and Functions
Fig. B – Front Panel Controls and Functions 
1.  POWER SWITCH: Press the Power switch in to turn the receiver 
  on. The LCD window will light, and the operating channel number 
  will be displayed in the window. To turn the receiver off, press the 
  Power switch again. 
2.  LCD WINDOW: Liquid Crystal Display indicates channel setting and 
  operational readings. See Fig. C for examples.
3.  UP/DOWN BUTTONS: Press Up or Down arrow buttons to arrive at 
  desired channel. The selected number will ash on and off. Press 
  and hold Set/Scan button to set the channel (operating frequency).
4.  SET/SCAN BUTTON: Two distinct operations are associated with 
  this button:
  Touch: A momentary press of the Set/Scan button.
  Hold: A press and hold (about two seconds) of the Set/Scan button.
  The Set/Scan button can be used in two ways: Manual Set Mode, 
  to permit selection of an operating channel; and Automatic Scan/Set  
  Mode, to initiate the automatic channel scan and selection, as follows:
  Manual Set Mode: After using the Up or Down arrow button to 
  arrive at desired channel, hold the Set/Scan button to set the 
  channel. NOTE: Before the channel has been set, a touch of the 
  Set/Scan button will revert the channel to its previous setting.
  Automatic Scan/Set Mode: Hold the Set/Scan button. The Automatic  
  Scan/Set Mode will automatically scan for and set the next open 
  channel.
5.  MOUNTING ADAPTERS: For mounting the receiver in any standard 
  19" rack. Attach adapters to the receiver with the screws supplied 
  and remove the four receiver feet. (Use optional AT8630 joining- 
  plate kit to mount two ATW-R2100a receivers side-by-side.)
Fig. C – Receiver LCD Window Display
6.  RF SIGNAL LEVEL INDICATOR: Shows the strength of the RF signal  
  received from the transmitter.
7.  TUNER OPERATION INDICATOR: Indicates which Tuner (A or B) has  
  the better reception and is in operation.
8.  CHANNEL DISPLAY: Shows which channel is selected.
9.  AF LEVEL INDICATOR: Shows the audio modulation level of the 
  received signal.
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