The ICOM IC-F521 has been discontinued. The information here is for your reference only

VHF 50W 136-174 MHz, is the mobile of choice for today’s professionals. The IC-F521 series mobiles meet the demanding needs of today's professionals. With 256 channel capacity and built-in flexible tone signalings, cross-regional public safety coverage is a reality. Business and industrial users will appreciate the flexible, yet simple design of these MIL SPEC rugged mobiles - from conventional to expanded trunking operation.

• Dimensions: 5.5 (W), 1.6 (H), 6.7 (D); 2 lb, 10 oz
• 25 W output power on IC-F620 version OR 45 W on IC-F621 version
• 4 W audio output
• 136-174 
• 256 channels with 16 Banks
• SIGNALING
  • CTCSS, DTCS encode/decode standard
  • Built-in 2 tone
  • DTMF ANI with UT-108
• TRUNKING
  • SmarTrunkII® optional
  • LTR® optional
• 9 programmable buttons
• Independent AF volume knob
• 10 character alphanumeric LCD
• Invertible chassis to point the speaker up or down, for ease of installation
• Backlit keys
• Flash CPU advantage for future applications
• Fractional-N PLL provides faster lock up times
• Power on password and 'stun' features
• Microphone hanger function
• Normal/priority scan
• Built-in audio compander
• DTMF optional (HM-100TN required), DTMF redial and DTMF autodial
• MIL SPEC 810 C, D, E, F for:
  • Low pressure
  • High temperature
  • Low temperature
  • Temperature shock
  • Solar radiation
  • Rain
  • Humidity
  • Salt fog
  • Dust
  • Vibration
  • Shock