SOUND DEVICES A20-Monarch

Sound Devices A20-Monarch — Wideband Omnidirectional Antenna for the Astral Wireless System

The A20-Monarch is an omnidirectional, wide-bandwidth antenna designed for the Sound Devices Astral series of digital wireless products. Covering 470 to 1600 MHz with uniform gain and pattern across the entire range, the Monarch lets a single antenna span the full SpectraBand UHF tuning range — keeping your bag, cart, or rack kit small and tidy. Two A20-Monarch antennas are included with the A20-Nexus and A20-Nexus Go receivers; this listing is for a single replacement or expansion unit.

Compatible with A20-Nexus, A20-Nexus Go, A20-RX, and any third-party receiver in this frequency range.

Key Features

• Wide-bandwidth coverage: 470 to 1600 MHz in a single antenna — covers the entire SpectraBand UHF range
• Omnidirectional pattern: 2.2 dBi gain, uniform across the band
• Excellent return loss: better than 15 dB across the entire 470-1600 MHz range
• BNC-F connector on the antenna for direct connection to receiver inputs and accessory cables
• Articulating arm with multifunction clamp for flexible mounting on bags, carts, stands, or rigging
• 1/4"-20 mounting threads on antenna and clamp for standard accessory compatibility
• Lightweight passive design: only 120 g, no powering required

In the Box

• 1× A20-Monarch antenna with BNC-F connector and 1/4"-20 female threaded mount
• 1× adjustable clamp and articulating arm with 1/4"-20 male threaded mount
• 1× BNC-M to BNC-M cable, 75 cm (30 in)
• 1× BNC-M to SMA-M cable, 45 cm (18 in)

Specifications

• Frequency range: 470 - 1600 MHz
• Gain: 2.2 dBi
• Pattern: Omnidirectional
• Return loss: better than 15 dB across 470-1600 MHz
• Connector: BNC-F
• Mounting threads: 1/4"-20
• Dimensions: 17.0 × 21.0 × 1.7 cm (6.68 × 8.26 × 0.67 in)
• Weight: 0.12 kg (0.26 lb), unpackaged
• Power: Passive, no power required

2-year warranty when registered at sounddevices.com.