3-2

Hardware Tuning Setup and Procedure

2.0Hardware Tuning Setup and Procedure

2.1Tuning Frequency

Table 3-1 Frequencies Used for Tuning.

Band

Tuning Parameter

Frequency (MHz)

 

PLL Synthesizer

149.975

 

Transmitter

136.025

VHF 136 - 150 MHz

Receiver

136.025

Modulation Balance

136.025 (N band)

 

 

Sub-Tone Modulation

149.975 (S band)

 

Maximum Modulation

149.975 (S band)

 

PLL Synthesizer

173.975

 

Transmitter

150.025

VHF 150 - 174 MHz

Receiver

150.025

Modulation Balance

150.025 (N band)

 

 

Sub-Tone Modulation

173.975 (S band)

 

Maximum Modulation

173.975 (S band)

 

PLL Synthesizer

424.975

 

Transmitter

403.025

UHF 403 - 425 MHz

Receiver

403.025

Modulation Balance

424.975(N band)

 

 

Sub-Tone Modulation

403.025(N band)

 

Maximum Modulation

403.025(N band)

 

PLL Synthesizer

469.975

 

Transmitter

450.025

UHF 450 - 470 MHz

Receiver

450.025

Modulation Balance

469.975(N band)

 

 

Sub-Tone Modulation

450.025(N band)

 

Maximum Modulation

450.025(N band)

2.2Preparation Before Tuning (refer to Figure 3-1)

1.Set Power Supply to 7.5V and then connect to the radio.

2.Connect the connector and ground plate to the radio antenna port.

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Motorola 6816101H01-A service manual Hardware Tuning Setup and Procedure, Tuning Frequency