The Shure PGX Beta 87A wireless system offers excellent sound for bands and presenters alike. It comprises a PGX2 handheld transmitter with a Beta 87A microphone head and PGX4 diversityWireless “diversity” receivers feature two separate antennas for consistent signal reception.

System technical specifications

• Compatible systems per frequencyThis is how many times a sound or radio wave oscillates in one second. band (up to): 8
• Selectable frequencies: 90
• Auto Setup Features: Scan/Sync
• Audio Reference Companding: Yes
• Included Antennas: Attached 1/4-wave
• Antenna Options: No
• Receiver Network Ability: No
• PC Control: No
• Rack Hardware: Optional (URT)
• Case: System Case
• Transmitter Display: Multi-color LED
• Receiver Display: Multi-color LED
• Battery, Endurance: 2AA, >8 h
• Environment: Small to medium stages

Further Technical Specs

PGX4 Receiver

Dimensions
40 mm H x 181 mm W x 104 mm D (1.6 x 7.125 x 4.1 in.)

Weight
327 g (11.5 oz.)

Housing
ABS

Audio Output Level (ref. +/– 33 kHz deviation with 1 kHz tone)
XLR connector (into 600 Ω load): –19 dBV
1/4 inch connector (into 3000 Ω load): –5 dBV

Output Impedance
XLR connector: 200 Ω
1/4 inch connector: 1kΩ

XLR output
Impedance balanced
Pin 1: Ground (cable shield)
Pin 2: Audio
Pin 3: No Audio

Sensitivity
–105 dBm for 12 dB SINAD, typical

Image Rejection
>70 dB, typical

Power Requirements
12–18 Vdc at 150 mA, supplied by external power supply

PGX2 Handheld Transmitter

Audio Input Level

+2 dBV maximum at –10dB position
–8 dBV maximum at 0dB position

Gain Adjustment Range
10dB

RF Transmitter Output
30 mW maximum (dependent on applicable country regulations)

Dimensions including SM58 cartridge
254 mm x 51 mm dia. (10 x 2 in.)

Weight
290 grams (10.2 oz.) without batteries

Housing
Molded PC/ABS handle and battery cup

Power Requirements
2 “AA” size alkaline or rechargeable batteries

Battery Life

>8 hours (alkaline)