Blake Group B Bandpass Filter (BLAPROBF1B)

DTT Overlap Blocking Filters — proOBF1B Group B

Channels 39-52

Frequency 614- 726MHz

Key Features

• Good out-of band rejection helps block TETRA and GSM,

also LTE (4G), dependant on model.

• `F’ type connectors for good screening helping prevent

leakage around the filter.

• Good 75 ohm match throughout the passband.

• DC blocked—no damage if inadvertently linepowered

• (24 V DC max).

• Optional weatherproof outdoor housing available see BLAPROBFCS

• Equipotential bonding terminal.

Other Applications

The entire range will help solve GSM mobile phone interference

above channel 62 while the `A’ and `B’ models will additionally

help suppress the forthcoming LTE (4G) signals.

Quantity

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