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4 Results Found For "in-line"
I0JXX LNA Receive Preamplifiers
I0JXX LNA Receive Preamplifiers offer high gain amplification with very low internal noise for VHF and UHF amateur band optimized devices used world-wide by experimenters and contest enthusiasts. Excellent receive-only performance at low current is achieved by these compact 12VDC units, available in two connector configurations: SMA female input and output, or Type N male input and female output. LNA (low noise amplifiers) offer preamplification using ultra-low noise components as good or better than most receiver front ends, to preserve the capabilities of a low-noise antenna system. Typically, they do not have relays in the signal path that might introduce noise or loss. These devices can be used directly in most receive applications and may be used to build a sequencer-controlled Receive-Transmit relay system for two-way VHF or UHF communications. I0JXX LNA Receive Preamplifiers are built with high quality components including low-loss FR4 copper clad PCBs and environmentally safe tri-chrome high-conductivity passivated aluminum chassis. View the specific device specifications on each part detail page.
Not Yet Reviewed
$191.99
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$223.99
DX Engineering Clifton Laboratories Z10046 High-Gain Preamplifiers
DX Engineering Clifton Laboratories High-Gain Preamplifiers are adapted, assembled versions of the circuit project kits developed by Jack Smith, K8ZOA (SK). This is our version, the DXE-Z10046B-PM High-Output Preamplifier with 23dB gain, which is virtually identical to its predecessor in specs and performance. This versatile module preamp can plug directly into the DXE-NCC-2 and DXE-RTR-2 units. Also, you can easily create a separate high-performance in-line receive-only preamplifier with the DXE-Z10046B-PM module installed in our DXE-DMC-2 Dual Module Chassis. The legacy built by Jack Smith, K8ZOA (SK) with Clifton Laboratories lives on with select products by DX Engineering.
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$109.99
DX Engineering RPA-2 Modular Receive Preamplifiers
DX Engineering RPA-2 Modular Receive Preamplifiers are newly designed versions of the RPA-1 with internal slots for accessory modules. They accommodate the addition of the one optional plug-in module, such as the 75 to 50 ohm Impedance Transformer Module, or the Receiver Guard 5000HD Plug-In Module, or the DX Engineering Clifton Laboratories Z10020 AM Band Filter Module. DXE-RPA-2 preamps have very low internal noise and are optimized for the 300 kHz to 35 MHz range. They help you hear the weakest signals without artificially raising the noise. Meticulous craftsmanship and durable, robust components allow these preamplifiers to withstand high signal levels while providing superior dynamic range and third-order intercept performance that equals or exceeds most receiver and transceiver front-ends. RPA-2 Receive Preamplifiers have key features added, as requested by our tech-oriented customers and enthusiasts: - Internal slot accommodates the optional 75 to 50 ohm Impedance Transformer Module to accomplish typical receive antenna feedline to equipment transitions without losses -Also allows direct connection to 50 ohm receive antenna feedline BNC connectors with no transformer required - Internal slot for DXE-RG5000HD-PM Receiver Guard 5000HD Plug-In Module – Front-end protection for the RPA-2 - Secure BNC female connectors and receive-system friendly F female connectors remain; both prevent accidental connection to transmitting devices with UHF connectors - A green LED indicates when DC power is present and the preamplifier circuit is engaged. - An ingenious positive-capture threaded-sleeve 2.1 mm power connector that ensures the DC power cannot be accidentally disconnected from the RPA-2. - Alternatively, a simple internal jumper change allows the RPA-2 to be powered by DC on the feedline While many other common preamplifiers suffer from harmonic distortion, RPA-2 Modular Receive Preamplifiers include our exclusive, advanced push-pull design that eliminates harmonic distortion. Their high quiescent current increases their ability to handle strong signals without distortion or overload. These high performance devices must be powered with a well filtered and regulated DC power supply and will offer maximum performance at 12 to 18 Vdc input. Please do not use a cheap wall transformer or noisy switching wall-wart to power these top-of-the-line preamplifiers. Indoor installation at the back of the radio is recommended for RPA-2. For those who want to place them in an enclosure at a receive antenna system, a handy internal jumper allows these new units to be powered on the coaxial cable. RPA-2 Receive Preamplifier Specifications: -Input and Output Connectors, female: BNC and F -Frequency Range: 300 kHz to 35 MHz -Gain: 16 dB, +/- 1.5 dB (over entire frequency range) -Output Third Order Intercept: 43 dBm -Noise Figure: 3.5 dB -One dB Compression Point: +26 dBm (400 mW output) -Dynamic Range, IM3: 110 dB or greater (500 Hz bandwidth) -Power Requirement: 12-18 Vdc, 140 mA max. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering RPA-2 Modular Receive Preamplifiers offer superior receiving results on crowded medium wave and shortwave bands as well as on the ham bands. SWLs and Radio Amateurs around the world have come to rely on the advanced operational performance of DX Engineering Receive Preamplifiers. You will be able to pull in the weakest signals and snag that rare one, under the most difficult conditions, when you need it the most. Order your DX Engineering RPA-2 today!
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$269.99
SSB Electronic Mast-Mount Preamplifiers
SSB Electronic Mast-Mount Preamplifiers are low-noise, band-specific, weatherproof preamplifiers designed for installation near VHF and UHF antennas. Available for the 6 meter, 4 meter (Europe), 2 meter and 70 cm Amateur bands, these preamplifiers are installed in-line, at the antenna. They improve receive performance by amplifying weak signals before feedline loss can reduce them. Powering and Sequencing Most models can be powered remotely through the coaxial cable, and many modern transceivers include a built-in bias-tee for mast-mounted preamplifiers. If the transceiver or transverter system does not provide power, an external bias-tee or remote-feed unit is required. • The DCW-15 and DCW 2004B provide sequencing support. • The DCC-12 does not provide sequencing. • SP series preamplifiers include a built-in RF VOX circuit for safe operations up to 100 watts; for transmit power above 100 watts, PTT control with a sequencer is required. Some models require a direct DC connection (UHF female). • -S series preamplifiers feature lower current signal relays with slightly higher insertion loss. • MHP and MHP-S series preamplifiers versions require sequencer control (see below). Signal Filtering and Switching Built-in helix filters effectively reject out-of-band signals, helping maintain clean receive performance. Real coaxial relays handle transmit/receive switching, resulting in very low insertion loss (except for SP-S series). And each amplifier is carefully calibrated at multiple test stations before packaging. Dual-Band Models Dual-band models include built-in diplexers, so they require only one connection for the multiband antenna and one connection for the station coaxial cable. MHP Series for Demanding Stations The MHP series is designed for demanding operating environments and provides higher gain for weak-signal modes such as Tropo-DX and EME. With maximum transmit power handling of 1500 watts on 6m and 2000 watts on 2m and 70cm, these preamplifiers are well suited for contesting, DX, and EME operation. Important Note for MHP Models Bias-tee power (on the RF coax) is not supported in most MHP Preamplifiers. They must be powered directly using the appropriate cable size for the required distance, and they may only be operated with a correctly wired sequencer, such as the DCW 2004 B Sequence Controller. Transmitting high power without a directly wired sequencer is likely to damage the MHP preamplifier. Housing and Hardware All SSB Electronic Mast-Mount Preamplifiers are supplied in UV-resistant, weatherproof housings with Type N female connectors. Hot-dip galvanized clamps and stainless steel mounting hardware are included. See individual models for band coverage and detailed specifications.
Not Yet Reviewed
$480.99
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$2,888.99