President William II CB Radio

The President William II is a compact yet feature-rich AM/FM CB radio designed for reliable communication on the 40-channel CB band (26.965–27.405 MHz). Housed in a compact “black box” chassis and powered by either 12 V or 24 V supply, it delivers up to 4 W output and supports both AM and FM modes — enabling flexible use depending on signal conditions and local CB regulations. The unit comes with a cordless microphone, a digital display, LED S-meter, and standard SO-239 antenna connector for 50 Ω antenna impedance. Additional features include channel scanning (with skip option), squelch control, programmable emergency (EMG) channel, external mic and speaker jacks, USB-C support, and noise suppression filters (ANL, NRC). Altogether, William II aims to combine portability with a robust set of functions, making it suitable for vehicle installation or mobile CB use where flexibility, compactness, and reliable radio performance are required.

• Compact dimensions & dual-voltage power: 115 × 140 × 45 mm (main unit), with a 58 × 40 × 100 mm microphone; runs on 13.2 V or 26.4 V power supply, making it suitable for cars, trucks or other vehicles.
• 40 CB channels (26.965–27.405 MHz): Standard CB band coverage for AM/FM communications.
• AM and FM modulation: Gives flexibility depending on propagation and local radio traffic conditions.
• Output power: 4 W carrier power, with audio response from 300 Hz to 3 kHz.
• Receiver sensitivity: Very low minimum sensitivity (AM: 0.5 μV at 20 dB SINAD; FM: 0.35 μV) — helps in picking up weak signals.
• Audio / signal quality: Maximum audio output ~2.5 W; adjacent channel selectivity 60 dB; image- and IF-rejection rated at 60 / 70 dB respectively — ensuring clearer reception and minimal interference.
• Noise reduction & filtering: Includes ANL (Automatic Noise Limiter) and NRC (Noise Reduction Circuit) filters to improve clarity in noisy environments.
• User-convenience features: Manual squelch (plus ASC), channel up/down selector, digital display of channel/frequency, LED S-meter, programmable emergency channel (EMG), scan with skip, optional key-beep and Roger-beep, and external mic & speaker jacks.
• Accessory support: Comes with microphone and hanger, mounting bracket and screws. Antenna connector is standard SO-239 (50 Ω), compatible with most CB antennas.

For more information, refer the attachments.