Filter
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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Expandable Multicoupler
Expandable Multicouplers are an easy way to expand a transmit combiner/receiver multicoupler in Low Band, Aviation, and VHF bands without using a critical length cable. Sinclair’s C-Series pass-reject multicouplers offer excellent performance combined with the ease of expandability required in many multicoupling systems.

78 products

C2027-3-4
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 160-165 MHz
$0.00
C2027-2-3
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 140-146 MHz
$0.00
C2027-3-2
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 150-155 MHz
$0.00
C2027-1-5
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 132-137 MHz
$0.00
C2027-2-2
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 136-140 MHz
$0.00
C2027-1-3
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 120-126 MHz
$0.00
C2027-1-2
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 114-120 MHz
$0.00
C2027-1-1
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 108-114 MHz
$0.00
C2024-3-2.1
Exp multicoupler, Res-Lok, pass-reject, 2.1 dB IL, 155-174 MHz
$0.00
C2027-1-4
Exp multicoupler, pass-reject, 7" cavities, 2 pass, 1 reject, 126-132 MHz
$0.00
C2024-3-1.1
Exp multicoupler, Res-Lok, pass-reject, 1.1 dB IL, 155-174 MHz
$0.00
C2024-1-2.1
Exp multicoupler, Res-Lok, pass-reject, 2.1 dB IL, 118-136 MHz
$0.00
C2024-1-1.1
Exp multicoupler, Res-Lok, pass-reject, 1.1 dB IL, 118-136 MHz
$0.00
C2017-3
Exp multicoupler, 7" cavities, C Series, pass-reject, 148-174 MHz
$0.00
C2024-2-2.1
Exp multicoupler, Res-Lok, pass-reject, 2.1 dB IL, 136-155 MHz
$0.00
C2024-2-1.1
Exp multicoupler, Res-Lok, pass-reject, 1.1 dB IL, 136-155 MHz
$0.00
C2017-2
Exp multicoupler, 7" cavities, C Series, pass-reject, 132-150 MHz
$0.00
C2017-1
Exp multicoupler, 7" cavities, C Series, pass-reject, 108-136 MHz
$0.00