Operation of EF Johnson VHF-FM Radio

1
Operation of EF Johnson VHF-FM Radio

• Texas Wing
• Civil Air Patrol

VERSION 2.1
2
Overview

• Radio Specifications
• Radio Features
• Display Features
• Connecting the Microphone
• Connecting the Radio
• To Transfer the Radio
• To Turn in the Radio for Maintenance

3
Radio Specifications

• Very High Frequency / Frequency Modulation
  (VHF/FM)
• Designed for Mobile or Fixed Station Use
• 50 Watt / 10 Watt Selectable Power Level
• 256 Programmable Channels
• 16 Zones of 16 channels each
• 136 174 MHz Frequency Coverage

4
Radio Features
5
Display Features

• The value that can be changed by the selection
  knob is indicated by a bar over its number (see
  Channel and Zone values above).
• To change which value is affected by the
  selection knob, press the selection knob.

6
Option Button 1 - Backlight

• There are three backlight modes for the EF
  Johnson radio Off, Dim, and Bright.
• Use the Backlight Button to switch through these
  three modes.

7
Option Button 2 TX Power

• Press to Toggle Transmit Power between 10 and 50
  Watts
• The display will briefly reflect this change by
  displaying HIGH POWER or LOW POWER

8
Option Button 3 Home Zone

• Press to return to the Home Zone CAP Zone 1
• Then adjust channel knob to desired channel.

9
Option Button 4 - Scan

• Press to activate Scan function.
• Press once to activate Scan List 1. Press again
  to activate Scan List 2. If applicable, press
  again to activate Scan List 3. Press again to
  resume normal operation.
• During Scan Operation, an animated clock icon
  will appear between the zone and the channel
  number display.

10
Clock Display

• The clock icon is indicated in red.

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Scan List 1

• Scan List 1
• Scan List 1 consists of the four primary CAP
  VHF/FM frequencies

12
Scan List 2

• Scan List 2
• Scan List 2 consists of interoperability
  frequencies between CAP and organizations such as
  Texas DPS, Fire Service, and Medical Service.
• These stations require an interoperability
  agreement between CAP and the outside agency.

13
Scan List 3

• Scan List 3 contains marine (water) frequencies
  for use between CAP and water vehicles (Coast
  Guard)

14
Option Button 5 - Monitor

• Press and hold for 2 seconds to engage Monitor
  Function.
• When using the Monitor Function, Automatic
  Squelch is turned off.

15
Option Button 6 - Program

• Press to initiate Front Panel Program feature. A
  password is required to access the Front Panel
  Program.

16
Connecting the Radio

• The back of the EF-Johnson VHF-FM Radio

17
Connecting the Microphone

• Inserting Microphone
• To insert microphone, line up the notches in the
  microphone plug to the connector on the radio and
  insert.
• Removing Microphone
• To remove microphone, pull back on the collar
  around the front of the plug, then remove the
  plug from the connector on the radio.

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Connecting the Antenna

• A. RF Connector and Coaxial Cable supplied with
  radio
• B. Adapter
• Must remain attached to A, with radio
• C. Coaxial Cable to Antenna
• Type UHF / PL-259

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Connecting the Power Supply

• D. Accessory Connector
• Do not disconnect
• E. Black Molex connectors
• Supplied with Radio
• Do not disconnect
• F. White Molex connector
• Attached to a power source of 12 V, 10 A

20
Transferring Radio

• When transferring the Radio, make sure to
  include
• All adapters
• All power cables except cables permanently
  installed in vehicles
• Microphone
• Instruction Book
• Any items originally issued with radio

21
Turning in Radio for Maintenance

• When turning in the Radio for maintenance, make
  sure to include
• A. Adaptor connected to RF connector and Coaxial
  cable
• B. Power cord and accessory connector as shown
• Microphone

22
Review

• Radio Specifications
• Radio Features
• Display Features
• Connecting the Microphone
• Connecting the Radio
• Transferring the Radio
• Turning in the Radio for Maintenance

23
Questions
?

• Are there any questions about the EF Johnson
  Radio?