MA221A 1/2 inch preamplifier Introduction: The MA221A preamplifier is suitable for 1/2 "pre polarized microphones and has a shorter length, making it suitable for use in coupled cavities or confined spaces. MA221A is designed for coaxial cable output, with a standard wire length of 2 meters. Users can customize the wire length and output connector, and commonly used connectors are BNC or SMB. Application scope: Coupling cavity testing; Testing with limited space usage. Technical parameters: Diameter: 1/2“ Polarization voltage: 0V (pre polarized) Frequency response (Hz) (± 0.5 dB): 4~150 k Attenuation (dB):<0.1 Maximum output voltage (Vpeak): ± 7 Self generated noise (typical): A weighted<4 uV 20 Hz ~ 20 kHz <15 uV Input impedance (G Ωǁ pF): 6 ǁ 0.4 Output impedance (Ω):<30 Power supply mode: ICCP (2 mA~20 mA, 4 mA typical) Temperature range for use (° C): -40~80 Humidity range (% RH): 0~95 Size (mm): Ø 12.7 × 38.9 Microphone connection thread: Ø 11.7-60 UNS-2A Output interface: coaxial cable output, user can customize output interface Weight (g) (excluding microphone): 4.2 (including 1m wire, BNC interface) TEDS: Not supported
Introduction: The MA221A preamplifier is suitable for 1/2 "pre polarized microphones and has a shorter length, making it suitable for use in coupled cavities or confined spaces. MA221A is designed for coaxial cable output, with a standard wire length of 2 meters. Users can customize the wire length and output connector, and commonly used connectors are BNC or SMB. Application scope: Coupling cavity testing; Testing with limited space usage.
