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

C2037W-3-(X)
Exp multicoupler, pass-reject, 7" cavities, 3 bandpass, 1 reject, 146-174 MHz
$0.00
C2037W-2-(X)
Exp multicoupler, pass-reject, 7" cavities, 3 bandpass, 1 reject, 132-150 MHz
$0.00
C2037W-1-(X)
Exp multicoupler, pass-reject, 7" cavities, 3 pass bandpass, 1 reject band, 108-136 MHz
$0.00
C3037W-4
Exp multicoupler, pass-reject, 7" cavities, 3 pass 1 reject, 450-470 MHz
$0.00
C3037W-3
Exp multicoupler, pass-reject, 7" cavities, 3 pass 1 reject, 430-450 MHz
$0.00
C3037W-2
Exp multicoupler, pass-reject, 7" cavities, 3 pass 1 reject, 415-430 MHz
$0.00
C3037-4
Exp multicoupler, pass-reject, 7" cavities, 3 pass, 1 reject, 450-470 MHz
$0.00
C3037W-1
Exp multicoupler, pass-reject, 7" cavities, 3 pass 1 reject, 406-415 MHz
$0.00
C3037-3
Exp multicoupler, pass-reject, 7" cavities, 3 pass, 1 reject, 430-450 MHz
$0.00
C3037-5
Exp multicoupler, pass-reject, 7" cavities, 3 pass, 1 reject, 470-512 MHz
$0.00
C3037-1
Exp multicoupler, pass-reject, 7" cavities, 3 pass, 1 reject, 406-415 MHz
$0.00
C3034-3-3.1
Exp multicoupler, Res-Lok, pass-reject, 3.1 dB IL, 475-512 MHz
$0.00
C3037-2
Exp multicoupler, pass-reject, 7" cavities, 3 pass, 1 reject, 415-430 MHz
$0.00
C3034-3-1.6
Exp multicoupler, Res-Lok, pass-reject, 1.6 dB IL, 475-512 MHz
$0.00
C3034-2-3.1
Exp multicoupler, Res-Lok, pass-reject, 3.1 dB IL, 440-475 MHz
$0.00
C3034-2-1.6
Exp multicoupler, Res-Lok, pass-reject, 1.6 dB IL, 440-475 MHz
$0.00
C3034-1-3.1
Exp multicoupler, Res-Lok, pass-reject, 3.1 dB IL, 406-440 MHz
$0.00
C3034-1-1.6
Exp multicoupler, Res-Lok, pass-reject, 1.6 dB IL, 406-440 MHz
$0.00
C3029-3
Exp multicoupler, C Series, pass-reject, 8.5" cavities
$0.00
C3029-2
Exp multicoupler, C Series, pass-reject, 8.5" cavities
$0.00