Land Mobile Radio Analyzer and Coverage Measurement Guide : PTC-ACSES Analyzer (Option 731) : Setup Procedure
 
Setup Procedure
Start the PTC-ACSES Mode
To enter PTC-ACSES mode:
1. Press the Menu then select the PTC-ACSES Analyzer icon.

OR
2. Press Shift and then the Mode (9) button to open the Mode Selector dialog box. Highlight PTC-ACSES Analyzer and press Enter.
Direct Connection to the Transmitter
1. Connect the transmitter to the RF In 50 Ohm connector on the LMR Master using a coupler or attenuator.
Caution 
The maximum input power without damage is 2 watts (+33 dBm) to the RF In 50 Ohm connector. To prevent damage, use a coupler or attenuator to reduce the input power to below this level when measuring high output power devices.
2. Press the Frequency main menu key to set the receiver center frequency (Rx Freq) of the measurement. Use the arrow key, rotary knob or the numeric keypad. When using the keypad, select the appropriate terminator submenu key to set the center frequency.
3. Press the Setup main menu key to choose the Rx and Tx patterns and set the Squelch Lvl and Averaging.
4. Press the Amplitude main menu key, then the Rx Power Offset submenu key to set the receiver attenuation (or gain). Use the arrow keys, rotary knob or the numeric keypad to enter the adjustment value, up to 100 dB and select either the Loss or Gain submenu key. The offset will be applied to the Receiver Power value in the Summary graph. For instance, if the transmitter under test is emitting 50 watts (+47 dBm) of power, and the External Attenuation value is 40 dB (such as from a 40 dB directional coupler) the Received Power displayed will be +7 dBm.
5. Press the Measurement key, then the PTC ACSES Analyzer submenu key. Select the Graph types to view with the Graph Type submenu key. The Symbol Span submenu is used to adjust the number of “eyes” displayed across the screen in the Eye Diagram graph. Refer to PTC-ACSES Analyzer Graphs for information on the available graph types.
Over the Air (OTA) Analysis Setup
1. Connect an antenna with the appropriate frequency range to the RF In 50 Ohm connector on the LMR Master.
Caution 
The maximum input power without damage is 2 watts (+33 dBm) to the RF In 50 Ohm connector. To prevent damage, use a coupler or attenuator to reduce the input power to below this level when measuring high output power devices.
2. For the coverage mapping or the beacon-ignore functionalities, connect the GPS antenna.
3. Press the Frequency main menu key to set the center frequency of the measurement using the Rx Freq key. Use the arrow key, rotary knob or the numeric keypad. When using the keypad, select the appropriate terminator submenu key to set the center frequency.
4. Press the Setup main menu key, then select the RF Trigger setup. Make sure the RF Trigger source is selected. Choose the right trigger level and timeout for the use case.
5. Refer to PTC-ACSES Analyzer Graphs for information on the available graph types.
 
Using the Signal Generator for Receiver or Repeater Analysis
1. Follow instructions in Start the PTC-ACSES Mode.
Caution 
The maximum output power from the Signal Generator Out connector is 1 mW (0 dBm) and the frequency range is 500 kHz to 1.6 GHz.
2. Directly connect the LMR Master Signal Generator Out 50 Ohm connector to the repeater/receiver or connect an antenna with the appropriate frequency range to the connector.
3. Connect the GPS antenna connector to an external antenna.
4. Press the Frequency main menu key to set the transmit frequency using the Tx Freq key. Use the arrow key, rotary knob or the numeric keypad. When using the keypad, select the appropriate terminator submenu key to set the center frequency.
If testing a PTC repeater, you can bind the transmit frequency to the receive frequency by setting Rx/Tx Coupling to On and entering the Coupling Offset.
Note 
When Rx/Tx Coupling is On, the Tx Freq submenu key is disabled.
5. Press the Amplitude main menu key, then the Tx Output Lvl submenu key to set the output power. Enter any output attenuation or gain using the Tx Power Offset key.
6. Set the transmit pattern. Press the Setup main menu button and select the Tx Pattern submenu key. Available patterns are listed on the display and additional patterns can be downloaded via the System > Application Options menu.
7. Press the Measurement main menu button. The Measurements menu displays.
8. Press the PTC Receiver Tester key. The PTC Receiver Test menu displays.
9. Press the Start Test key to start the test. The key’s text changes to Waiting for Trigger. When the trigger is sensed, the text changes to Stop Test. The Turn Sig-Gen On main menu button changes to Turn Sig-Gen Off.