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3 Results Found For "in-line"
DX Engineering Receive Feedline Voltage Injectors
DX Engineering Feedline Voltage Injectors, DXE-FVI-1, are high-quality bias-tee devices that place direct current onto a receive antenna system's coaxial cable while preventing DC from reaching the Radio port. These FVI-1 voltage injectors are used to power active accessory devices, such remote relays, switching systems, and preamplifiers. These are the original equipment FVI-1 units provided with single DX Engineering Active Receive Vertical antenna models. Voltage is applied via the 2.1mm power connector to the receive antenna feedline F connector. The RCA phono jack connects to the receiver input with that DC voltage blocked, while passing RF from 100 kHz to 30 MHz. Various RCA phono plug adapters for different RF cable connectors are available in Suggested Parts. Two DXE-FVI-1 feedline voltage injectors may be connected at opposite ends of a feedline to provide DC voltage on the transmission line for your own custom application, keeping the input and output RF devices isolated from the voltage. The included 120V AC 60 Hz wall transformer power supply may be connected to the 2.1mm power connector may to place approximately +12 volts DC on the coaxial cable center conductor, with the coaxial cable shield used as the negative ground return. A different station power supply, 1-16 VDC, may be used with an in-line, 1 Ampere, fast-blow fuse for various devices. DX Engineering feedline voltage injectors are ready for your "DC power on the coax" needs! Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. When you need to inject a DC voltage onto a 75 ohm coaxial cable used for receiving, remember the DX Engineering Feedline Voltage Injector!
Not Yet Reviewed
$99.99
QRO.cz Bias Tee Receive Feedline Voltage Injectors
QRO.cz Bias Tee Receive Feedline Voltage Injectors are engineered to inject DC voltage into a receive antenna system's coaxial cable while isolating the radio port from DC current. This allows you to power remote devices—such as preamplifiers, relays, or switching systems—without the need for separate power lines, simplifying your installation by combining RF and DC over a single coaxial feed. Typically installed at the receiving end of the coaxial cable, the bias tee passes DC power from an external source to the coax line running to the powered device. It uses a feed inductor to deliver DC to the device side and a blocking capacitor to prevent DC from reaching the radio. For added flexibility, bias tees can be used on both ends of the coaxial line to serve as DC input and output points.
Not Yet Reviewed
$93.99
DX Engineering Receive Filter Plug-In Modules
DX Engineering Receive Filter Plug-In Modules provide frequency-specific receiving system enhancements, which fit into special DX Engineering devices listed below. These advanced plug-in filter modules are available separately to allow any user to create a specific or customized filter with low-pass, band-pass and high-pass frequency ranges. Filter cut-off and center frequencies correspond to the major Amateur bands, 160, 80, 40, 20, 15 and 10 meters, with filter module insertion loss of only about 1dB. By reducing or excluding frequency-specific interfering noise and signals, the noise floor can be lowered for the desired passband for dramatically improved reception DX Engineering Receive Filter Plug-In Modules may be installed in these devices: DXE-DMC-2 Dual Module Chassis accepts one or two filter modules to create a stand-alone passive inline filter unit of any configuration. One high pass and one low pas can be combined to create a multi-band bandpass filter of any HF range. DXE-RPA-2-PM Modular Receive Preamplifier accepts one Receive Filter Plug-In Module to customize the preamplifier passband. DXE-NCC-2 Receive Phasing Controller can accept one or two Receive Filter Plug-In Modules, one into each, Channel A and Channel B. The DX Engineering NCC-2 is highly regarded by many owners and engineers to be the best receive phasing and noise canceling unit available and is used extensively by enthusiasts in Amateur Radio DXing, Contesting, AM DXing, and Short-Wave Listening (SWL), and is also used in commercial AM and HF broadcast applications. DX Engineering Receive Filter Plug-In Modules add an extra dimension of functionality to the NCC-2, for advanced directional noise and signal nulling performance, enhanced with a specific frequency range operations. By default, NCC-2 internal option slots have bypass boards to pass all signals. Receive Filters placed into these slots dedicate the unit to filtered operation. Typically, one pair of band-pass or high-pass or low-pass filters, depending on desired filtering, is installed in the NCC-2 to suit the specific signal rejection needs of the discerning operator. As an example, an 80 meter DX enthusiast may elect to install two 80 meter band pass Receive Filter Plug-In Modules, part number DXE-R-BP80-PM, into their NCC-2 Channel A and Channel B middle slots. This dedicates their NCC-2 to 80 meter-only operations. This dramatically reduces noise and signals from outside the 80 meter band, very effectively excluding interference from nearby AM Broadcast, 160 and 40 meter stations. A much lower noise floor across 80 meters can help achieve reception of weak 80 meter DX signals. An additional pair of filters can be swapped out for a different band when desired. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. All Receive Filter Plug-In Modules displayed here are also conveniently listed on a single page linked in Documentation.
Not Yet Reviewed
$54.99