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Tower Top Amplifier (TTA)
A TTA places a low-noise preselector and low-noise amplifier (LNA) at the tower top, close to the receive antenna. This location minimizes feeder loss and reduces the overall receive noise figure—delivering stronger uplink “talk-back,” wider coverage, and more reliable site access in LMR/PMR systems. High-quality filtering and strong linearity help prevent overload and intermodulation.


Sinclair advantage: Sinclair TTA systems are delivered as a matched package with the TTA and receiver multicoupler/controller together. This integrated approach optimizes end-to-end performance, simplifies integration, and ensures a balanced site design.
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混合耦合器
混合耦合器用于射频组合、采样和功率分配应用。混合耦合器是将两个或多个紧密间隔的通道组合在一起的一种方式。使用不平衡混合耦合器可以平衡每个中继器通道的插入损耗，从而提供更高效的系统。它们也常用于 DAS 系统中，以在几分贝内正确平衡分配系统的每个支路。它们还可以配置为对输出功率电平进行采样并用作信号采样器。

28产品

HH4141BB-E6035
Coupler, unbalanced 70/30, N(m)/ N(f), 300 Watts, 806-960 MHz
$0.00
HH4140CB
Coupler, balanced, broadband, N(f), 400 Watts, 500-1000 MHz
$0.00
HH4141HP
Coupler, unbalanced, 8.3/1.3 dB, N(m)/ N(f), 600 W, 806-960 MHz
$0.00
HH4141C-2
Coupler, 80/20 split, 214 MHz BW, 300 Watts, 746-960 MHz
$0.00
HH4141C-1
Coupler, 70/30 split, 214 MHz BW, 300 Watts, 746-960 MHz
$0.00
HH3141C-3-2
Coupler, 80/20 split, 53 MHz BW, 300 Watts, 459-512 MHz
$0.00
HH4140HP
Coupler, balanced, N(m)/ N(f), 600 Watts, 806-960 MHz
$0.00
HH3141C-3-1
Coupler, 70/30 split, 53 MHz BW, 300 Watts, 459-512 MHz
$0.00
HH3141C-2-2
Coupler, 80/20 split, 65 MHz BW, 300 Watts, 405-470 MHz
$0.00
HH4140B
Coupler, balanced, 3% BW, N(f), 300 Watts, 806-960 MHz
$0.00
HH3141C-2-1
Coupler, 70/30 split, 65 MHz BW, 300 Watts, 405-470 MHz
$0.00
HH3141C-1-2
Coupler, 80/20 split, 65 MHz BW, 300 Watts, 350-415 MHz
$0.00
HH4140
Coupler, balanced, 3% BW, N(m)/ N(f), 300 W, 806-960 MHz
$0.00
HH3141HP
Coupler, unbalanced, 3% BW, 7.3/1.2 dB, N(m)/ N(f), 600W, 406-512 MHz
$0.00
HH3141C-1-1
Coupler, 70/30 split, 65 MHz BW, 300 Watts, 350-415 MHz
$0.00
HH3140
Coupler, balanced, 3% B.W., N(m)/ N(f), 300 W, 406-512 MHz
$0.00
HH2141-E3217
Coupler, 5.2/1.6 dB, N(m)/ N(f), 30/70 split, 138-174 MHz
$0.00
HH3140HP
Coupler, balanced, 3% B.W., N(m)/ N(f), 600 W, 406-512 MHz
$0.00
HH2141C-2-1
Coupler, 70/30 split, 30 MHz BW, 300 Watts, 150-180 MHz
$0.00
HH3140CB
Coupler, balanced, broadband, N(f), 400 Watts, 225-520 MHz
$0.00