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UHF5 (806MHz

–

941MHz)

Tuning Description

Items Method

channel.

3. Click the “Transmit On” button on Tuner.

4. Adjust the power to the required level as follows:

Low power: 10 W

806 MHz–825 MHz/851 MHz–870 MHz: 35 W

896 MHz–902 MHz/935 MHz–941 MHz: 30 W

5. Click the “Save” button on Tuner to save the existing value to the radio.

Transmit-to-Deviation

Connect the radio to HP8921 via the antenna connector, and set HP8921

to TX test mode.

2. Set the parameters on the HP8921 as follows:

IF Filter: 230 kHz

Filter1: <20 Hz HPF

Filter2: <15 kHz LPF

De-Emphasis: off

3. Open the Tuner software and go to “TUNE_DATA -> TX ->

Transmit-to-Deviation” in the left navigation tree. Then click the “Transmit

On” button. Then set the modulation signal of HP8921 to “100 Hz”.

Adjust the vernier on Tuner until the frequency deviation displayed on

HP8921 is “5 kHz”.

5. Click the “Save” button on Tuner to save the existing value to the radio.

6. Click the “Transmit Off” button on Tuner.

Modulation Balance

Here takes the low frequency deviation for example.