The following Quick Start instructions apply to the NBFM mode. For detailed measurement instructions, refer to the Land Mobile Measurement Guide P/N 10580-00243, listed in Measurement Guides.
Set the Receiver (Rx) Frequency
1. Press the Freq main menu key.
2. Press the Rx Freq submenu key.
3. Enter the desired center frequency using the keypad, the arrow keys, or the rotary knob. When entering a frequency using the keypad, the submenu key labels change to GHz, MHz, kHz, and Hz. Press the appropriate unit key. Pressing the Enter key has the same affect as pressing the MHz submenu key. The center frequency and span are shown at the bottom of the spectrum display. Press the Span submenu key to adjust the measurement span.
4. Press Setup main key. Use the submenu keys to select the Tone Type.
5. Under the Amplitude main menu, the Auto Rx Range default will adjust the reference level to display the received signal. To adjust the settings, press Adjust Rx Range then set the Ref Level and Scale.
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.
Set the Signal Source Transmit (Tx) Frequency
The LMR Master contains a signal generator and test patterns for analog FM land mobile radios. The maximum output power is 1.0 milliwatt.
1. Press the Freq main menu key.
2. Press the Tx Freq submenu key.
3. Enter the desired frequency using the keypad, the arrow keys, or the rotary knob. When entering a frequency using the keypad, the submenu key labels change to GHz, MHz, kHz, and Hz. Press the appropriate unit key. Pressing the Enter key has the same affect as pressing the MHz submenu key.
Note
Bind the transmit frequency to receive frequency using the Rx/Tx Coupling and Coupling offset submenus under the Frequency menu.
4. Press Setup main key and use the Tx pattern submenu key to set the transmit pattern. Press Enter after selecting a pattern. Based on the pattern selected, set the AM Percentage or the FM Deviation and Tone Deviation (under the More menu).
5. Under the Amplitude main menu, set the signal generator output power using the Tx Output Lvl submenu.
6. Press the Turn Sig-Gen ON main menu key to turn on the internal signal generator. The menu button display Turn Sig-Gen OFF when the generator is running.