74-4270 SENNHEISER AD 3700 ANTENNA Active, directional, 470-866MHz
An active, paddle type, directional antenna with integrated AB 3700 broadband antenna booster. This antenna is only
compatible with EM 3731, EM 3732, EM 2000, EM 2050, and EM 6000 receivers only.
Technical Specifications
Frequency range 470 – 866 MHz
Apex angle (-3 dB) approx. 100°
Front-to-back ratio ≥ 14 dB
Gain approx. 3 dB
Amplification (booster) bypass (-3 dB), 5 dB, 10 dB, 15 dB adjustable, without DC feed: -6 dB
Impedance 50 Ω
OIP3 ≥ 32 dBm
RF connection BNC socket
Power supply 9 – 15 V ⎓ / 160 – 100 mA, DC feed via antenna cable, (RF OUT socket on receiver).
Mounting connection 3/8" or 5/8" thread
Dimensions 329 x 322 x 23 mm
Weight: 625g, (including booster).
Pick-up Pattern
Intended Use
The product is designed for indoor and outdoor use. The product can be used for commercial purposes. It is considered
improper use when the product is used for any application other than as an antenna with the receiver equipment
mentioned above. Sennheiser does not accept liability for damage arising from improper use or misuse of this product
and its attachments/accessories. Before putting the products into operation, please observe
the respective country-specific regulations!
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