Benutzerhandbuch für Vertex Standard FT-1807M

Inhaltsverzeichnis

• Introduction

  1
• Contents

  1
• Specifications

  2
  • General

    2
  • Transmitter

    2
  • Receiver

    2
• Exploded View & Miscellaneous Parts

  3
• Block Diagram

  5
• Connection Diagram

  6
• Circuit Description

  7
  • Receive Signal Path

    7
  • IF and Audio Circuits

    7
  • Squelch Control

    7
  • Transmit Signal Path

    7
  • TX APC Circuit

    8
  • PLL

    8
• Alignment

  9
  • Introduction

    9
  • Required Test Equipment

    9
  • Alignment Preparation & Precautions

    10
  • Test Setup

    10
  • Entering the Alignment Mode

    10
    • PLL Reference Frequency

      10
    • RF Front-end Tuning

      10
    • Squelch Threshold Level

      11
    • S-meter Level (S-1)

      11
    • S-meter Level (S-9)

      11
    • TX Power (High)

      11
    • TX Power (Low 3)

      11
    • TX Power (Low 2)

      11
    • TX Power (Low 1)

      11
    • TX Deviation

      11
    • CTCSS TX Deviation

      12
    • DCS TX Deviation

      12
  • Closing the Alignment mode

    12
• MAIN Unit

  13
  • Circuit Diagram

    13
  • Parts Layout

    15
    • Side A

      15
    • Side B

      16
  • Parts List

    17
    • C 1xxx

      17
    • CD1xxx

      20
    • CF1xxx

      20
    • D 1xxx

      20
    • FB1xxx

      20
    • J 1xxx

      20
    • L 1xxx

      20
    • Q 1xxx

      21
    • R 1xxx

      21
    • TH1xxx

      25
    • X 1xxx

      25
    • XF1xxx

      25
• CNTL Unit

  27
  • Circuit Diagram

    27
  • Parts Layout

    28
    • Side A

      28
    • Side B

      28
  • Parts List

    29
    • C 2xxx

      29
    • D 2xxx

      29
    • DS2xxx

      30
    • FB2xxx

      30
    • J 2xxx

      30
    • L 2xxx

      30
    • Q 2xxx

      30
    • R 2xxx

      30
    • RB2xxx

      31
    • S 2xxx

      31
    • VR2xxx

      31
    • X 2xxx

      31