Document Outline

• 1. BEFORE OPERATION
• 2. SPECIFICATIONS AND ACCESSORIES
  • 2-1. SPECIFICATIONS
  • 2-2. ACCESSORIES
    • AFTER UNPACKING
• 3. INSTALLATION AND CONNECTION
  • 3-2. CONNECTIONS
• 4. OPERATION
  • 4-1. CONTROL FUNCTIONS
    • 1. Function Keys
    • 0 TONE key
    • 0 SHIFT key
    • 0 REV (Reverse) key
    • (With the TM-221A/321A/421A/521A)
    • (With the TM-221ES/421ES/521E)
    • 0 SCAN key
    • 0 CTCSS (Continuous Tone Coded Squelch System) key (TM-221A/321A/421A/521A only)
    • 0 ALERT key (TM-221 ES/421ES only)
    • 0 ALT key (TM-521E only)
    • 2. Display Panel
    • 0 SHIFT indicator
    • (D REV (Reverse) indicator
    • (D AL (Alert) indicator (TM-221ES/421ES only)
    • 0 SCAN indicator
    • ® TONE indicator (Excludes TM-221 ES/421 ES European versions and TM-521E)
    • 0 M (Memory In) indicator
    • (D Memory Channel Number display
    • 0 ★ indicator
    • (Q) ON AIR indicator
    • (Q) S & RF meter
    • (J|) ALT and Direction indicators (TM-521 series only) ALT indicator:
    • 0 ANT (Antenna) connector
    • 0 SP (Speaker) jack
    • (3) Fuse holder
    • 0 13.8 VDC power input connector
    • Qj) BUSY indicator
    • (0) Frequency display
    • 4-1-3, Microphone
    • 0and (2) UP/DWN (Up/Down) switches
    • (D PTT (Push To Talk) switch
    • 0 16-Tone DTMF Keypad (U.S.A. version only)
  • 4-2. RECEPTION
    • 4-2-1. Initial Control Settings
    • Note:
    • 4-2-2. Frequency and Memory Channel Selection
    • 4-2-3. Frequency Step Selection
    • 4-2-4. ALT (Auto Lock Tuning) System (TM-521 series only)
    • Note:
    • To utilize this feature:
    • (With the TM-521E)
    • ■ ALT operation using the RC-10.
    • 4-2-5. Confirmation Tones
  • 4-3. TRANSMISSION
    • Cautions:
  • 4-4. MEMORY
    • 4-4-1. Microprocessor Reset
    • 4-4-2. Microprocessor Initialization
    • 4-4-4. Memory Channel Contents
    • 4-4-5. Memory Entry
    • 1. Memory Channels 0 — 9, A and b (Simplex/Stan- dard Offsets)
    • Odd Split Memory Channels C and d
    • 4-4-6. Memory Shift (Transferring Data from Memory Channel to the VFO)
  • 4-5. SCAN
    • 4-5-1. Programmable Band Scan
    • 4-5-2. Memory Channel Scan
    • 4-5-3. Scan Direction
    • 4-5-4. Scan Hold
    • 4-5-5. Memory Channel Lockout
    • 4- 5-6. Priority Alert (TM-221ES/421ES only)
  • 4-6. REPEATER
    • 4-6-1. Transmitter Offsets
    • (With the TM-221 A/321 A)
    • 4-6-2. Offset Direction
    • 4-6-3. Reverse Function
    • (With the TM-221ES/421ES/521E)
    • 4-6-4. Tone Operations
    • (With the TM-221A/321A/421A/521A)
    • (With the TM-221ES/421ES/521E)
    • 4-6-5. Autopatch (U.S.A. only)
  • 4-7. TONE FREQUENCY SELECTION
  • (TM-221A/321A/421A/521A only)
  • 4-8. TONE SQUELCH (CTCSS)
  • (TM-221A/321A/421A/521A only)
    • 4-8-1. Tone Squelch Operation Initiated by the Distant Station.
    • 4-8-2. To Open the Tone Squelch of a Distant Station
• 5. MAINTENANCE AND ADJUSTMENT
  • 5-1. GENERAL INFORMATION
  • 5-2. SERVICE
  • 5-4. IN CASE OF DIFFICULTY
  • 5-3. CLEANING
  • 5-5. MICROPROCESSOR BACKUP
  • LITHIUM BATTERY REPLACEMENT
  • 5-7. ORDERING SPARE PARTS
  • 5-6. FUSE REPLACEMENT
  • 5-8. ADJUSTMENTS
• 6. OPTIONAL ACCESSORIES
  • 6-1. TSU-5 PROGRAMMABLE TONE DECODER UNIT
  • (TM-221A/321A/421A/521A only)
  • 6-2. MC-43S HAND MICROPHONE (8-pin)
  • 6-3. OTHER ACCESSORIES
    • ■ MC-85 MICROPHONE (8-pin)
    • ■ MC-55 MOBILE MICROPHONE (8-pin)
    • ■ MC-80 MICROPHONE (8-pin)
    • ■ MC-48B AUTOPATCH UP/DOWN HAND MICROPHONE (8-pin)
    • ■ MC-60A MICROPHONE (8-pin)
    • ■ SW-200A/200B SWR/POWER METER (supplied with a coupler)
    • ■ SWC-4 DIRECTIONAL COUPLER
    • ■ SW-100A/100B SWR/POWER METER
    • ■ RC-10 REMOTE CONTROLLER
    • ■ SWT-1/SWT-2 ANTENNA TUNING UNIT
    • ■ MB-201 MOBILE MOUNT
    • ■ PG-4G EXTENSION CORD
    • ■ PG-3B DC LINE NOISE FILTER
    • PG-2N EXTRA DC POWER CABLE
• 7. BLOCK DIAGRAM AND CIRCUIT DIAGRAM
  • 7-1. BLOCK DIAGRAM
    • 7-1-1. TM-221 series
    • 7-1-4. TM-521 series
• 8. REFERENCE
  • 8-1. ANTENNA
    • 8-1-1. Fixed Station
    • 8-1-2. Mobile
    • Installation for mobile operation
  • 8-2. MOBILE INSTALLATION HINTS