Item Details:
Telewave THRP Series High Performance Repeater Panels
The Telewave High-Performance Repeater Panel is designed to enhance the sensitivity and selectivity of a repeater receiver, extending mobile and portable coverage while providing superior intermodulation protection for the transmitter.
This panel features a dual isolator with a 50-watt termination on the second stage output, complemented by a low-pass filter to safeguard against transmitter intermodulation (IM). Together, they deliver over 60 dB of IM protection across a ±5 MHz bandwidth and attenuate the transmitter's second harmonic by more than 50 dB.
At the heart of the system is a duplexer that incorporates four 4-inch cavities in a pass/reject configuration, achieving an impressive 110 dB isolation with only 1.8 dB insertion loss. For additional filtering, the receiver side connects to two 8-inch high-Q bandpass cavities, forming a narrow passband preselector.
The preselector output is fed into one of two available low-noise preamplifiers. The standard configuration includes a TLA series low-noise bipolar preamp, ideal for environments prone to lightning or high ambient signal levels. For sites with minimal RF noise, an optional TGA series preamp featuring a PHEMT amplifier is available, offering enhanced sensitivity.
The entire THRP system is mounted on a compact 14” x 19” panel, fully tuned and ready for installation. By integrating all components into a single unit, the panel reduces costs compared to purchasing each item separately while conserving valuable rack space.
Specifications:
| Frequency range: |
THRP-1548: 138-174 MHz
THRP-4548: 400-512 MHz
THRP-7648: 763-869 MHz
THRP-8648: 806-960 MHz |
| Frequency separation (min): |
3 MHz |
| Power input (continuous): |
125 watts |
| VSWR (max): |
1.22:1 |
| TX-RX isolation (typ.): |
110 dB |
| Insertion loss TX to Antenna (typ.): |
1.8 dB |
| TX 2nd harmonic attn. (typ.): |
50 dB |
| Antenna to TX isolation (typ.): |
75 dB at 5 MHz |
| RX-TX isolation (typ.): |
120 dB |
| Temperature range: |
-30°C to +40°C |
| Connector type: |
N Female |
| Finish: |
Grained aluminum |
| Dimensions (HWD): |
14 in x 19 in x 12 in
35.6 cm x 48.3 cm x 30.5 cm |
| Net weight: |
25 lb / 11.4 kg (400-860 MHz) |
Telewave Inc. designs and manufactures high quality RF system products. It serves wireless system operators, public safety providers, local and state governments, and federal agencies in the United States and internationally. The company was founded in 1972 and is based in San Jose, California. Telewave strives to be the premier supplier of seamless interoperable communication systems that provide security and reliability in mission critical eco-systems for both commercial and military applications worldwide. Telewave products are used by more than 7,500 equipment and network manufacturers and government agencies throughout the world.
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