Point frequency combiners are widely used in relay stations of general communication networks and various private and public mobile communication networks. The point frequency combiner can connect 2~16 base transmitters to one transmitting antenna. This not only saves the engineering costs of antenna, feeder and tower erection, but more importantly, because this product uses a high O cavity And components such as ring isolators can better suppress the out-of-band noise and high-order harmonics of the transmitter, improve the purity of the transmission spectrum, and fundamentally improve the intermodulation interference problem that is difficult to solve in multi-antenna installations.
Various customized frequencies are available, with features such as low temperature drift, low insertion loss, low intermodulation, and high isolation.
Advantage:
Main frequency band 136-174MHz/330-520MHz/851-869MHz
Temperature drift and power drift<20Khz
Four-way full-temperature environment insertion loss <3.0dB
Input standing wave <1.3
PIM<-140dBc@2*43dBm
Product capability of high power 200W and above
Tuning range: 2MHz@VHF/5MHz@UHF
Products with any number of channels and frequencies can be customized according to customer needs
| Item | Technical |
| Frequency | 330-512Mhz |
| Frequency Separation | ≥250KHz |
| Tuning Range | 5Mhz |
| Isolation TX-TX | ≥70dB |
| Isolation TX-ANT | ≥60dB |
| PIM 3rd | ≥85dBc @ 47dBm*2 |
| Input VSWR | ≤1.3 |
| Output VSWR | ≤1.8 |
| Input Power | 50W(Per Channel) |
| Temperature | -30 to +60 ℃ |
| Connector Type | N-Female，50 Ω |
| Weight | < 5 Kg/Channel |
| Color | Oxidation Color |
Number of Channel | Insertion Loss (extreme temperature) | Size | ||||
| 330-380MHz | 380-450MHz | 450-512MHz | Width | Height | Depth | |
| 2 | ≤2.9dB | ≤3.1dB | ≤3.3dB | 302 mm | 150 mm | 420 mm |
| 3 | ≤3.2dB | ≤3.4dB | ≤3.6dB | 302 mm | 302 mm | 420 mm |
| 4 | ≤3.5dB | ≤3.7dB | ≤3.9dB | 302 mm | 302 mm | 420 mm |
| 6 | ≤3.8dB | ≤4.0dB | ≤4.2dB | 302 mm | 454 mm | 420 mm |
| 8 | ≤4.1dB | ≤4.3dB | ≤4.5dB | 302 mm | 606 mm | 420 mm |
Note:
1. It is recommended that the channel spacing be greater than 250K, otherwise the standing wave of some antenna ports may exceed 1.8;
2. The above indicators are formulated based on the interval ≥ 250KHz. If the interval is 150 KHz ≤ interval ≤ 250KHz, some indicators will be affected; if the interval is less than 150K, the channel interval cannot be combined;
2nd floor, Building A, Juchuang Jingu Creative Park, Nanshan District, Shenzhen
Phone : 0755-26701085 / 0755-26701002
Email : sales@nxbtech.com / tangym@nxbtech.com
0755-26701085 / 0755-26701002
sales@nxbtech.com / tangym@nxbtech.com
