Sennheiser AB 3700 Broadband Antenna Booster 470-866MHz

The Sennheiser AB 3700 Broadband Antenna Booster is an inline RF signal booster for the Sennheiser EM3731, EM3732 and EM3732 Command receivers.
The antenna significantly boosts RF strength and gain during long BNC cable runs.
The AB 3700 features up to 15dB of amplification and mounts to a standard 3/8" or 5/8" stud.

? Amplification adjustable in 4 steps (up to 15 dB) to compensate for cable losses
? DC powered from the receiver via the antenna cable
? Bypass switch in case of power failure
? LED operation indicator
? Antenna booster housed in a rugged, splash-proof all-metal housing
? Standard 3/8" or 5/8" mounting thread

Frequency Range: 470-866MHz
Amplification:
Bypass (-3dB), 5dB, 10dB, 15dB adjustable, without DC feed: -6 dB
Impedance:
? 50 Ohms
? OIP3: > = 32dBm
Connection: 2x BNC Sockets
Power Supply :
9-15 V DC / 160-100 mA, DC feed via antenna cable (RF OUT socket)
Mount: 3/8" or 5/8" thread
Dimensions: 3.14 x 2.51 x 0.94" (80 x 64 x 24mm)
Weight: 9.4 oz (265g)

Packaging Info
Package Weight: 0.8 lb/ 363 g
Box Dimensions: 5.9 x 4 x 2.6"/15 x 10 x 7 cm