118-174 MHz

TPRC-1405 cavities cover 118-148 MHz. All cavities are tuned tospecified frequencies prior to shipping, and no further adjustmentsshould be required. The positive locking mechanism allows for quickfield re-tuning if frequency changes become necessary.Heavy dutymaterials are used throughout each cavity to insure high performanceand long life. Cavity top plates are machined from 1/4-inch aluminum,and are heliarc welded to the cavity body at the high current pointfor improved conductivity and strength. This allows Telewave cavitiesto handle up to 350 watts, depending on insertion loss.

The Telewave TPRC-1505-2 is a 5" diameter,1/4 wavelengthPass-Reject cavities with an adjustable coupling loop and tuningcapacitor.TPRC-1505 cavities cover 148174 MHz. All cavities are tunedto specified frequencies prior to shipping, and no furtheradjustments should be required.

The Telewave TPRC-1510-2 has a 10" diameter,1/4-wavelengthPass-Reject cavities with an adjustable coupling loop and tuningcapacitor.Rigid foam inserts support the tuner assembly allowingvertical or horizontal mounting. Similar metals and alodined aluminumhelp prevent galvanic corrosion. Silver plated tuners and berylliumcopper finger stock provide noncorrosive low loss contact, and ensurereliable, long-term performance.

TWNC-1510 cavities cover 148174 MHz. All cavities are tuned tospecified frequencies prior to shipping, and no further adjustmentsshould be required. The positive locking mechanism allows for quickfield re-tuning if frequency changes become necessary.Excellentfrequency stability is achieved by the use of a specially machinedcompensator and Invar rod. The pass and reject frequencies aretemperature stable from -30°C to +70°C. Telewave Ground Looptechnology places the center conductor of each coupling loop at DC ground potential for lightning protection and noise reduction.

TWNC-1505 cavities cover 148174 MHz. All cavities are tuned tospecified frequencies prior to shipping, and no further adjustmentsshould be required. The positive locking mechanism allows for quickfield re-tuning if frequency changes become necessary.At denselypopulated sites, the TWNC-1505-2 dual cavity filter provides greaterselectivity with minimum insertion loss. Multiple cavities can alsoprovide a wider notch when required. Mounting rails are provided forall multiplecavity filters.

TWNC-1505 cavities cover 148174 MHz. All cavities are tuned tospecified frequencies prior to shipping, and no further adjustmentsshould be required. The positive locking mechanism allows for quickfield re-tuning if frequency changes become necessary.