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Antennas-Amplifiers 6344 Double 2x200W 2m & 70cm Bandpass Filters
Antennas-Amplifiers 6344 Double 2x200W 2m & 70cm Bandpass Filters are a dual band, dual power 2×200W band pass filter engineered for clean, interference free operation on both 144–148MHz (2m) and 430–450MHz (70cm). This "double" filter design incorporates two independent high power bandpass sections, each rated for 200 watts, providing exceptional filtering performance for stations using a single feed dual band antenna. Built to dramatically reduce unwanted signals, the 6344 suppresses not only HF, 6m, 4m, and FM broadcast interference but also problematic intermediate VHF/UHF frequencies such as 170MHz and 210MHz, as well as key harmonic ranges including 288MHz, 720MHz, 880MHz, and more. The result is a cleaner signal path and significantly reduced receiver overload in busy RF environments. With very low insertion loss on both amateur bands, the filter maintains full transmit and receive performance while sharply attenuating out of band energy. Its dual band architecture makes it especially ideal for use with 2m/70cm dual band antennas that use a single connector, providing excellent front end protection without complicating station layout.
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$459.99
$344.99
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SureFire Radio MIC-7 Multi-Interface Controller
The SureFire Radio MIC-7 Multi-Interface Controller is a phenomenal tool with application features for nearly every Amateur Radio station. It is a complete band decoder, antenna switch controller and remote control gateway contained in a single, attractive package. It supports Icom, Kenwood, Yaesu, Elecraft and Flex radios. From another room or another continent, it provides Internet remote control and computer connections to control a transceiver, a bandpass filter, an antenna switch and more! Here are the major functions of the MIC-7 at a glance: - LCD Display of Frequency, Band, Antenna and Status - Internal Band Decoder - RS-232, CI-V and Band Data interfaces - Internal RS-232 and CI-V to USB interface - Bi-directional band data port - Dual port LAN Ethernet interface – Port A is for Internet control of the MIC-7, Port B is for the Radio Data Stream - Direct USB connection to Flex Radios - Two units may be interconnected for SO2R operation - Automatic antenna lockout for antennas in use by other radio - Completely configurable from front panel (Dual LAN port assignment by web browser) - Dimensions, WHD: 6.7 x 1.4 x 7.6 in. (170.2 x 35.6 x 193.4 mm) - Weight: 1.4 lbs. (0.64 kg) While accomplishing all available remote control functions, this remarkable device simultaneously converts either Icom CI-V to USB, or Yaesu RS-232 CAT to USB, or Kenwood and Elecraft RS-232 COM to USB. The radio band data port is bi-directional, providing conversion of information for virtually unlimited applications with accessories. The MIC-7's USB port may be connected to a USB equipped transceiver for remote rig control and it supports direct connection to modern FlexRadio transceivers. You can easily interface any modern, computer controllable transceiver to a PC desktop or laptop computer AND enjoy the additional functionality of this unit. The MIC-7 features a dual port LAN for remote Internet operations which can simultaneously serve a remote station transceiver as well as control the rear panel 8-contact switching control for antenna or other relay switching tasks, such as a third party bandpass filter. The rear panel RJ11 FireLAN port on both the MIC-7 and the SureFire Radio BF-100 Bandpass Filter System provides direct interface control and DC power. They were made for each other! Like the BF-100, the SureFire Radio MIC-7 is built into an attractive and sleek heavy duty anodized aluminum case with laser engraved panels and high quality connectors. With the MIC-7, a connected transceiver, an antenna switch and a bandpass filter may all be remotely operated via local or Internet LAN connection to your router. Use your station with any Internet access control PC operating generic or transceiver specific remote control software. Here is the link to IP configuration software to use the MIC-7 on a LAN: https://www.netburner.com/download/ip-setup/ Here is the link to drivers for those interested in using a virtual COM port assigned to an IP address and port: https://www.netburner.com/download/virtual-comm-port-driver-windows-xp-10/ Bring the ease of remote operations with radio, antenna switch and bandpass filter automation to your shack with the SureFire Radio MIC-7 Multi-Interface Controller, available exclusively from DX Engineering.
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$399.99
$279.99
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Low Band Systems HF Transmit Band Pass Filters
NOTICE: Due to materials supply and logistical issues, resupply of Low Band Systems products will be delayed for an indefinite period. Low Band Systems HF Transmit Band Pass Filters are very high quality multi-stage devices designed to specifically limit the RF band pass to a single Amateur band. They eliminate image and harmonic RF interference issues for dedicated mono-band operations in multi-radio contesting environments. Required for use with transmit multiplexers, these passive filters provide the additional isolation needed to allow multiple transceivers to be operated on different bands simultaneously on the same antenna. Used individually on mono-band radio and antenna combinations, these filters provide the isolation required in multi-radio contest stations. Low Band Systems band pass filters are available for each of the ten HF Amateur Bands in 200, 500 and 1,500 watt models, and 2,000 watt models for the main contesting bands of 160, 80, 40, 20 ,15 and 10 meters. Their unique aluminum enclosures, some with fans, are laser cut with "Perfo-Box" on the side and their power handling and band of operation are stenciled chassis cutouts in European nomenclature, such as "3,5 MHz" for the 80 meter filter, for example. Their permanent demarcation allows immediate identification, preventing any future trouble with faded or missing printed labels. Supplied only with standard UHF Female/SO-239 connectors, these HF Transmit Band Pass Filters achieve over 60 dB of out-of-band suppression that virtually eliminates out of band noise and interfering signals. They are designed to provide a sharp roll off just outside each Amateur band; just below 3.5 MHz and just above 4.0 MHz for the 80 meter filter for example. Low Band Systems filters are the first choice of major multi-multi contest stations around the world! They provide the clear benefit of a dramatically lower noise floor for enhanced single-band weak signal reception desired for elite contest and Field Day operations. Low Band Systems Band Pass Filters are used in conjunction with their multiplexers, also known as multi-band transmit combiners. Low Band Systems Diplexers, Triplexers, Quadplexers and Pentaplexers, also available from DX Engineering, provide good levels of isolation between band ports, but band pass filters are also needed for multi- transmitter operation. This is because the multiplexer's main purpose is to balance the impedances for the multiple-transceiver/single multi-band antenna stations. They provide UHF Female/SO-239 connections for multiple 50-ohm transceivers to be connected to a single 50-ohm feedline. So, band pass filters are REQUIRED for each multiplexer band input to provide the additional isolation required to allow multiple transceiver setups to work. The transceivers for each band are connected to their associated band pass filter, and then to the multiplex device such as a triplexer, which is connected to a tri-band beam, for example. All transceivers can operate simultaneously with up to 80 dB of isolation, unhindered by the signals from the other connected radios operating on the other bands on the same antenna! Achieve the advanced operational advantages that these exceptional filters and multiplexers provide. Order Low Band Systems HF Transmit Band Pass Filters from DX Engineering! NOTE: Filters made for 160 meters are 2.0 MHz low pass models to prevent harmonics on higher bands. They do not reject frequencies below 1.8 MHz. If AM broadcast interference is a problem, an additional BCI filter should be used. After better antennas, these filters are suggested as the most important multi-radio station upgrade by top contest station builders and operators. Low Band Systems HF Transmit Band Pass Filters simply allow more contacts to be made with worldwide DX stations and DXpeditions.
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$359.99
$269.99