Icom SM-50 Desktop Microphone

Icom SM-50 Dynamic Desktop Microphone for Base Station Operation

Achieve Superior Audio Quality in Your Shack
The Icom SM-50 Desktop Microphone is an essential upgrade for any amateur radio base station operator looking for crystal-clear, professional-grade audio. Designed specifically for use with select Icom transceivers, this unidirectional dynamic microphone with a built-in pre-amp delivers reliable performance and enhanced modulation. Its sleek design and flexible gooseneck make it a perfect fit for high-end radio setups.

Key Features & Benefits

• Unidirectional Dynamic Element: Focuses on your voice and reduces unwanted background noise for clear, commanding audio.
• Built-in Pre-Amplifier: Provides high microphone gain and a stronger output level, ensuring your voice cuts through the band. The output level is adjustable via the MIC GAIN volume control on the base.
• Integrated Frequency Control: Features [UP] and [DOWN] switches on the base for convenient frequency changing directly from the microphone.
• Low-Cut Switch: Use the [LOW CUT] switch to instantly filter out low-frequency components from your voice signals, improving clarity and reducing 'muddy' audio.
• PTT and PTT Lock: Includes a [PTT] (Push-To-Talk) switch for momentary transmit and a [LOCK] switch for continuous transmission, providing hands-free operation.
• Dedicated Icom Compatibility: Engineered to draw necessary power (5–10 V DC) directly from your compatible Icom transceiver via the 8-pin plug, ensuring optimal performance and hassle-free integration.

Technical Specifications

• Microphone Type: Unidirectional Dynamic (with built-in preamp)
• Output Impedance: 55Ω ± 30% (at 1 kHz)
• Microphone Sensitivity: -30{dB ± 4dB (at 1 kHz, 0dB = 1V /Pa)
• Power Requirement: 5–10 V DC (supplied from transceiver)
• Cable Length: Approx. 1m (3 ft 3-3/8 in)
• Weight: Approx. 730g (26 oz)
• Connector: 8-pin round plug

Compatibility

The Icom SM-50 is designed for use with a range of Icom transceivers.

Compatible Models:

• IC-718, IC-7100, IC-7200, IC-7300, IC-7300MK2, IC-7410, IC-7610, IC-7760, IC-7700, IC-7800, IC-7851, IC-9100, IC-9700, and others with an 8-pin round microphone jack.

Note for Modular Jack Transceivers:

• For models with a modular jack (e.g., IC-7000, IC-7100), the optional OPC-589 Adapter Cable is required (sold separately).