Introducing the world's first* 5W VHF marine transceiver that floats! If you drop the Icom IC-M33 VHF Marine Transceiver into water, the radio comes up to the surface so that you can easily retrieve it.
*First 5W VHF marine handheld transceiver as researched by Icom as of October 2006.

As the radio has a rugged waterproof body**, the Icom IC-M33 VHF Buoyant Waterproof Marine Radio will keep on working even after it has been submerged. Reliable marine communications that won't let you down in or out of your boat! When floating, the base of the radio is level with the water surface.
**1-m depth for 30 minutes, equivalent to IPX7. The IC-M33 is not designed to be used under the water.

Easy-to-see LCD with large channel indication

The Icom IC-M33 has an easy-to-see LCD (32 x 16 mm) with a clear 2-digit channel number indication. The volume and SQL levels are shown in the display. LCD and key backlighting is standard for night time operation.

Easy to use, easy to hold

Nine large buttons on the front panel provide simple, straightforward operation. The IC-M33 weighs only 300 g and the easy-to-hold rounded body fits comfortably in your hand.

Quick channel selection with favourite channel function

Tag your favourite or often-used channels then push the Fav button and easily re-call those channels while ignoring untagged channels.

Lithium-ion battery and charger as standard

A lithium-ion battery pack and battery charger are supplied as standard. The BP-252 lithium-ion battery pack provides 9 hours^ of operating time.
^Typical operation with Tx (Hi): Rx: standby = 5:5:90.

AquaQuake draining function

The AquaQuake draining function emits a vibrating sound and clears water away from the speaker grill.

Optional HM-165 speaker-microphone

The optional waterproof HM-165 speaker-microphone will still allow the Icom IC-M33 to float when attached. You will get great audio from it as well.

Additional Features

• Powerful 5 W output power
• Dual-/tri-watch functions
• 4-step battery life indicator
• 2-step power saver
• 70 programmable channels
• Autoscan function
• Instant access to Ch 16 or programmable call channel
• Optional battery case for using with alkaline cells (case also floats when connected to the IC-M33)

Specification

General

• Frequency range:
• Marine Tx 156.000-161.450 MHz
• Rx 156.000-163.425 MHz
• Useable channels: INT, USA (depending on version) channels
• Current drain (at approx. 7.4V DC):
• Tx 5 W output 1.5 A
• 1 W output 0.7 A
• Rx AF max 200 mA typical
• Operating temperature range: -15°C to +55°C
• Antenna impedance: 500 (STUD)
• Dimensions (WxHxD): 61 x 140 x 43 mm (projections not included)
• Weight: approx 300 g (with BP-252 and ANT)

Transmitter

• Output power 5/1 W
• FRG version 1/0.5 W
• Max. frequency deviation ± 5.0 kHz
• Audio harmonic distortion less than 10 (at 60 dev)
• Frequency error ±1.5 kHz
• Spurious emissions <0.25 uW
• Adjacent channel power 70 dB
• Hum and noise ratio 40 dB

Receiver

• Sensitivity (20 dB SINAD): -2 dBu emf typical
• Squelch sensitivity: -5 dBu emf typical (threshold)
• Adjacent channel selectivity: 70 dB
• Spurious response: 70 dB