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Single Bandpass Cavity Filter
Single Bandpass Cavity Filter
    Quantity in Basket: None
    Code: FIL-TWCP-150-1
    Price: $710.42 USD
    The Telewave TWPC-1505-1 is a 1/4-wavelength, high "Q" bandpass cavity filter with superior selectivity. Bandpass cavities reject all frequencies outside a narrow pass band. This cavity reduces transmitter sideband noise and also protects receivers against desensitization.

    The TWPC-1505-1 features calibrated adjustable coupling and insertion loss can be easily set from 0.5 dB to 2 dB or more to improve selectivity. This allows cavity response to be optimized for any operating environment.

    Excellent frequency stability is achieved by the use of a specially machined compensator and Invar rod. The pass frequency is temperature stable from -30°C to +70°C. Telewave Ground Loop technology places the center conductor of each coupling loop at DC ground potential for lightning protection and noise reduction.

    Heavy duty materials are used throughout each cavity to insure high performance and long life. Cavity top plates are machined from 1/4 -inch aluminum and are heliarc welded to the cavity body at the high current point for improved conductivity and strength. This allows Telewave cavities to handle up to 350 watts, depending on insertion loss.

    Rigid foam inserts support the tuner assembly allowing vertical or horizontal mounting. Similar metals and alodined aluminum help prevent galvanic corrosion. Silver plated tuners and beryllium copper finger stock provide non-corrosive low loss contact, and ensure reliable, long-term performance.

    Manufactured by Telewave


    Insertion loss (adjustable) 0.5 to 2.0 dB
    Attenuation See figure
    Maximum dimensions with tuners extended in. (cm) 5 x 28 (13 x 71)
    Net weight lbs. (kg) 5 (2.3)
    Shipping weight lbs. (kg) 8 (3.6)
    Tuning frequency range 148-174 MHz (field tunable)
    Nominal impedance 50 ohms
    VSWR at resonance (max) 1.5:1
    Input power (max) vs. insertion loss 0.5 dB - 350 watts, 1 dB - 250 watts, 2 dB - 150 watts
    Temperature range -30°C to +70°C
    Cavity electrical length 1/4 wavelength
    Outer conductor, end plates 6061-T6 aluminum
    Inner conductor, coupling loops Silver plated copper
    Tuning rod Invar
    Contactors, fingerstock Beryllium copper
    Cavity dimensions (Diam. x H) in. (cm) 5 x 23.5 (13 x 60)
    Connectors N female
    Finish Gray acrylic enamel

    Attention: A fee of $35.00 will be added to all orders of less than $100.00.* * No fee will be added for MMSI or service orders.

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