RFS26 - Specification for Radio Apparatus: VHF and UHF Land Mobile Service (ARCHIVED)

Contents:

1. Scope and Application

2. Mechanical and Electrical Design

3. Basic Operational Requirements

• 3.1 Class of Emission
• 3.2 Frequency Range
• 3.3 Method of Operation
• 3.4 Coded Squelch
• 3.5 Transmit Time Limiting

4. Standard Test Conditions

• 4.1 General
• 4.2 Standard Test Voltage
• 4.3 Standard Ambient Temperature
• 4.4 Extremes of Supply Voltage & Ambient Temperature
• 4.5 Standard Test Modulation
• 4.6 Standard Test Load
• 4.7 Standard Test Signal
• 4.8 Source Impedance
• 4.9 Receiver Test Signal Imput Arrangements
• 4.10 Standard Output Power (Receiver)
• 4.11 Sinad Ratio
• 4.12 Nominal Tune Frequency
• 4.13 Standard Test Receiver
• 4.14 Test Fixture

5. Transmitter Performance

• 5.1 Power Output
• 5.2 Accuracy and Stability of Carrier Frequency
• 5.3 Modulation Frequency/Deviation Characteristic
• 5.4 Unwanted Power in Adjacent Channels
• 5.5 Deviation Limiting
• 5.6 Spurious Emissions
• 5.7 Transmitter Transient Frequency Behaviour

6. Receiver Performance

• 6.1 General
• 6.2 Sensitivity
• 6.3 Selectivity
• 6.4 Blocking or Desensitisation
• 6.5 Spurious Response Rejection
• 6.6 Intermodulation Response
• 6.7 Spurious Radiation
• 6.8 Co-Channel Rejection

7. Equipment Identification