Topwave 380-520MHz UHF Transimitter Combiner
A combiner in this page is for combining different frequency Land Mobil Radio ("LMR") transmitters at higher power levels (100-250W) into a single transmitter antenna. A combiner is required to prevent the output of one transmitter from feeding into the output of another. At a minimum this would generate wide band inter-modulation ("IMD") (the output stage of most PA's looks like a bunch of mixer diodes in parallel). A good combiner provides isolation between the different transmitters and low insertion loss to the antenna, making is a non-reciprocal device.
In LMR most spurious signals must be attenuated down to at least -80 dBc (decibels below the carrier power). This can be more at co-location sites and certain frequency choices can exacerbate this, especially if the receiver frequency is close to a potential mix product frequency. Note that a combiner only prevents spurious mixing in the transmitter power amplifiers, it's still quite possible to have IMD in the antenna, cable, connectors or other parts of the system.
·Guaranteed Parameter Compliance
·Low Band Frequency Coverage
·Low Insertion Loss
·Low VSWR
·Indoor & Outdoor Using IP65
·Available with Type N, 7/16DIN or 4.3/10 Type Connectors
| Electrical & Mechanical Specifications |
| Model No. |
TPW-TC-3852-NF |
| Frequency(MHz) |
380-520 |
| Return Loss(dB) |
≥18 |
| Insertion Loss(dB) |
≤1.8 |
| Isolation(dB) |
TX-TX ≥80 |
| ANT-TX ≥60 |
| Power Rating(W) |
100W (average Per Port) |
| Operating Temperature (deg) |
-30~+75ºC |
| Connector |
N Female |
| Color |
Black |
Hefei Topwave Telecom Co.,Ltd, is a worldwide leading provider of comprehensive RF passive equipment and high-performance wireless infrastructure solutions focused on innovation and differentiation at the edge of wireless telecommunication networks.
Topwave Telecom established in 2007, located in Hefei National High-tech Zone. With the decades of development, we have our own R&D center and manufacturer center.We are OEM and ODM service provider and network operators to improve performance and reduce operating expenses via comprehensive set of products and solutions. Topwave has more than 10 years experience to export goods to all over the world, the RF passive devices like power splitter, coupler, filter, multiband combiner etc, which widely used for DAS, IBS, BTS and BDA.
Topwave persist to provide excellent products and service for every client as always. Our mission is to make the world connected, make the world small, and make the world smart. Topwave Telecom, your trusted strategic business partner, your RF expert in telecommunication.
Q: Can I get smaples for validation test?
A: Let's talk, some samples are free but shipping charge should be on your account.
Q: What is your MOQ?
A: We don't have MOQ limit.
Q: What is your payment terms?
A: We accept Western Union, T/T, Paypal and so on.
Q: What is your delievry time?
A: Normally around 2 weeks, TBD for massive quantity or customized products.
Audited Supplier 
){kind=link}