PRT 4-fold coupling network UHF, 2U x 460 mm, 35 W, N coupler, frequency range 450-465 MHz
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Ultra-compact coupling network for interconnecting 4 radio repeaters.
The COMB-TX+RX-4-450465-35W couples 4 radio repeaters in the 70 cm 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 wide bandwidth. A frequency change within the bandwidth is possible at any time without readjustment
The standard bandpass duplexer prevents interference from large signals outside the useful band on both the transmitting and receiving side. The active receive amplifier effectively compensates for path losses.
Extremely compact design in a 19" rack: 2U.
The reduced installation depth of 460 mm enables installation in 19" racks with a shallow cabinet depth.
FEATURES/ADVANTAGES
| Model name: | COMB-TX+RX-4-455470-35W |
| Frequency range: | UB = 450-455 MHz / OB = 460-465 MHz< td> |
| Duplex spacing (Tx - Rx): | 5-15 MHz within the passbands |
| Frequency spacing Tx - Tx: | min. 6.25 kHz, max. 5 MHz |
| Frequency spacing Rx - Rx: | min. 6.25 kHz, max. 5 MHz |
| Insertion loss Tx - antennas: | < 8.2 dB |
| Attenuation antenna - Tx: | > 70 dB (typ. > 80 dB) |
| Gain antenna - Rx: | > 1 dB |
| Blocking attenuation Tx - Tx: | > 80 dB (typ > 90 dB) |
| Blocking attenuation Tx - Rx: | > 75 dB |
| Blocking attenuation Rx - Rx: | > 20 dB |
| max. Power per transmitter: | 35 watts. 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 460 mm (without connections and handles) |
| Weight: | 11.2 kg |
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