PRT 3-port coupling network VHF, 2U x 460mm, 35W, N coupler, for frequency range 146-174 MHz
Ultra-compact coupling network for interconnecting 3 radio repeaters.
The COMB-TX+RX-3-146174-35W couples 3 radio repeaters in the 2 m band to a common antenna output. The high coupling attenuation enables high operational reliability if simultaneous, undisturbed parallel operation of several radio systems is absolutely necessary.
The use of broadband components enables consistent electrical properties over a large bandwidth. Any adjustment work due to frequency changes is therefore reduced to a minimum. The receive path is equipped with a bandpass filter to prevent interference from large signals outside the useful band. The active receive amplifier effectively compensates for path losses. Extremely compact design in a 19" rack: 3U.
The reduced installation depth of 460 mm enables installation in 19" racks with a shallow cabinet depth.
FEATURES / ADVANTAGES
| Model designation: | COMB-TX+RX-3-146174-35W |
| Frequency range: | 146 - 174 MHz |
| Duplex distance (Tx - Rx): | 4-6 MHz standard. Other duplex spacings optional |
| Frequency spacing Tx - Tx: | min. 6.25 kHz, max. 1.5 MHz standard. Other duplex spacings optional |
| Frequency spacing Rx - Rx: | min. 6.25 kHz, max. 1.5 MHz standard. Other duplex spacings optional |
| Insertion loss Tx - antennas: | < 8.3 dB |
| Attenuation antenna - Tx: | > 40 dB |
| Gain antenna - Rx: | > 1 dB |
| Blocking attenuation Tx - Tx: | >> 65 dB (typ. >70dB) |
| Blocking attenuation Tx - Rx: | > 60-80 dB (depending on Tx - Rx frequency spacing) |
| Blocking attenuation Rx - Rx: | > 20 dB |
| max. power per transmitter: | 35 Watt. Other transmission powers optional |
| Supply voltage Rx amplifier: | + 12 V DC |
| Noise figure Rx amplifier: | < 1.3 dB, typ. < 1 dB |
| Power consumption: | 75 mA |
| Power supply: | stabilized power supply, 230 V AC, 12 V DC, 1A, EU plug, standard |
| Dimensions: | 19" x 2U x 360 mm (without connections and handles) |
| Weight: | 13.2 kg |