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4O3A Parts and Accessories
4O3A Adapters for NC-1 MC-1 Boom Mic Headsets
4O3A Adapters for NC-1 MC-1 Boom Mic Headsets are essential for adapting the MC1 red 3.5mm microphone plug to the connector on your Icom, Kenwood or Yaesu transceiver. The red coded mic cable plug goes to the 3.5mm female jack on the adapter cable. The green coded headphone plug goes to the 3.5mm female headphone jack (or adapter) on your transceiver. The 8-pin round mic connector on the adapter cable plugs into the microphone jack on your transceiver. The 1/4 in. the female jack on these adapter cables are for connecting a Push-To-Talk (PTT) footswitch or hand switch, both are sold separately. Without a PTT footswitch or hand switch, your radio can still be used in VOX mode. A Y-Adapter (O3A-4O-3-5MAFEST) is also available to connect the NC-1 headset to the TRRS headphone/mic jack of a mobile device or other electronics. NOTE: These adapters do not come with the NC-1 headset. Each are sold separately.
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$33.99
4O3A USB to RS-485 Adapters
4O3A USB to RS-485 Adapters are a compact, level converter designed to convert USB serial data into a bipolar RS-485 signal, enabling long-distance communication thanks to its symmetrical signal levels. Commonly used to connect the Rotator Genius magnetic compass to a PC for calibration or sensor data retrieval, this adapter is powered directly via USB and requires no external power supply.
Not Yet Reviewed
$29.99
4O3A Coaxial Connectors
4O3A Coaxial Connectors deliver exceptional quality and performance for RF applications, featuring right-angle connectors compatible with RG-58 and RG-213/U coaxial cables. Available in both PL-259 and Type-N male configurations, these 50-ohm connectors ensure reliable signal transmission. Each connector includes a clamped shield, and a removable access cap for easy soldering of the center pin. With these features, 4O3A Coaxial Connectors are ideal for demanding amateur radio, broadcast, and communication installations.
Not Yet Reviewed
$29.99
4O3A NC-1 Ear Cushion Replacement Kit
The ear cushions are the most vulnerable and expendable part of any headphones. Replacing the ear cushions will extend the useable time of the headset by years, so securing some spares is a good idea. Keep your NC1 Bluetooth Headset working like new and don't let worn out ear cushions diminish your comfort and listening experience. NOTE: The NC-1 headset comes with one pair of replacement ear cushions.
Not Yet Reviewed
$36.99
4O3A Bluetooth Dongles for NC-1 Headphones and Headsets
4O3A Bluetooth Dongles for NC-1 Headphones and Headsets are offered for those who use a PC that does not have Bluetooth capability. These USB Bluetooth 5.0+ dongles support high resolution audio listening, volume and track selection as well as voice communications for radio, mobile and portable devices and computers. Many laptops and PCs already have Bluetooth built-in, some do not, and some have an old Bluetooth adapter that is incompatible. In order to properly support all of the NC-1 Bluetooth 5.0 capability, here are two optional USB dongles for virtually any situation: O3A-4O-BTNC1 for standard use within the same room. O3A-4O-BTNC1R for "Plug & Play 100M" long range use, this model includes an external antenna (not shown in image). NOTE: A USB Bluetooth dongle is not supplied with NC-1 Headsets or NC-HP Headphones.
Not Yet Reviewed
$20.99
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$31.99
4O3A Microphone and Headset Protective Cases
4O3A Microphone and Headset Protective Cases for the MC-1 Microphone and NC-1 Headset are designed for secure storage and transport of your audio gear. The MC-1 case is compact and ideal for carrying small accessories such as coax adapters or cable headsets, featuring a light green zipper for easy identification. The NC-1 headset case offers a tailored fit and quick access via a smooth zipper; it is also suitable for storing additional items like jumper cables or chargers. Both cases provide practical protection and portability for field use or everyday station organization. These soft cases are offered as replacements and are included with the MC-1 Microphone and NC-1 Headset.
Not Yet Reviewed
$25.99