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DX Engineering NCC-1 Receive Filter Sets
DX Engineering announces a series of NCC-1 Receive Filter Sets, a breakthrough option for owners of the NCC-1 Receive Antenna Phasing Unit. These advanced plug-in filter module sets offer frequency-specific receive antenna system enhancements for the NCC-1. All filter modules sets are available in matched pairs of 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 1 dB. Highly regarded by many owners and engineers to be the best receive phasing and noise canceling unit available, the DX Engineering NCC-1 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 NCC-1 Receive Filter Sets add a new dimension of functionality to the NCC-1, for advanced directional noise and signal nulling performance, enhanced with specific frequency range operations. By default, NCC-1 filter slots are jumpered to pass all signals. On the NCC-1 front panel, the BAND toggle switch "L" or "H" positions each activate one of two filter pair slots, allowing over 360 degrees of phase rotation in two frequency ranges. The BAND switch "L" position covers from 850 kHz to 8 MHz. The BAND switch "H" position covers from 2 MHz to 15 MHz. Frequencies outside these ranges will have less than 360 degrees of phase rotation. NCC-1 Receive Filter Sets must be placed into the proper BAND filter slots corresponding to desired usage. NCC-1 Receive Filter Sets are pairs of filters (2 of the same type), so both NCC-1 receive antenna inputs "A" and "B" exhibit the same pass-band characteristics. Band-pass, high-pass or low-pass filters are available for users to choose and install into their NCC-1 for their desired application. By reducing or excluding frequency-specific interfering noise and signals, the noise floor of the desired pass-band can be lowered for dramatically improved reception. You can install one set or two sets, depending on your desired filtering. NCC-1 "L" and "H" slots may be populated with pairs of band-pass, high-pass, or low-pass filters 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 NCC-1 Receive Filters, part number DXE-NCCFL-BPF80M, into their NCC-1 "L" BAND slots. This would dedicate their NCC-1 to 80 meter-only operations. Setting the BAND switch to "L" would dramatically reduce 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 on 80 meters could be achieved for dramatically enhanced reception of weak 80 meter DX signals. An additional pair of filters could be installed into the "H" BAND slots, to enhance reception on the higher HF bands. For example, installing 20 meter high pass filters, part number DXE-NCCFL-HP20M, and switching to BAND H would drastically reduce all received noise and signals from frequencies below 13.70 MHz. With advanced planning of additional filter availability, an NCC-1 owner could even swap different filter sets for optimal operations in different contests or band pursuits. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. All NCC-1 Receive Filter Sets displayed here are also conveniently listed on a single page in the link tab called "Documentation." Order one or two DX Engineering NCC-1 Receive Filter Sets for your unit and enjoy the best possible performance from your NCC-1.
Not Yet Reviewed
$79.97
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$82.97
DX Engineering Receive Filters
DX Engineering Receive Filters are available individually for use in the NCC-2, RPA-2, RTR-2 or DMC-2 with adapter boards. These filters are also available in sets with mounting fixtures for use in the NCC-1. DX Engineering Receive Filters are numbered for the key Amateur Band on which they function. The Band Pass filter models pass RF only on the numbered band, the High Pass models function on that band and all device frequencies above, and the Low Pass models work on that band and all device frequencies below. Response plots for Receive Filters are conveniently listed on a single page in this product's detail web page tab labeled "Charts and Guides". Some users will want to use a pair of these filters with two of the required DXE-RXFL-1 Filter Adapter Boards in their NCC-2. Each individual filter used requires a DXE-RXFL-1 Single Filter Adapter Board to convert them for installation in DX Engineering device models DXE-NCC-2, DXE-RPA-2, DXE-RTR-2 or DXE-DMC-2. All of the RXFL filters are still available in paired sets including two filters and one filter mounting fixture for owners of the legacy NCC-1 unit. See the Receive Filter Sets in combo packages by entering NCC-1 into the search box above.
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$53.99
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$97.99
DX Engineering Transceiver Amplifier Keying Cables
DX Engineering Transceiver Amplifier Keying Cables connect the "ground on transmit" or contact closure provided by the radio that is required to make an HF amplifier switch from "receive mode" to "transmit and amplify mode" when using PTT (push-to-talk), VOX or break-in CW keying. DX Engineering Transceiver Amplifier Keying Cables are made for specific transceiver models that have special DIN or mini-DIN connector accessory ports which provide the transceiver's only connections for linear amplifier keying. One type of amplifier keying cable has one RCA phono plug for the amplifier relay jack, which is all that is needed. When the transceiver PTT (push-to-talk) is keyed, the RCA plug center pin is connected to the shield (and chassis ground in most cases) to key the amp relay or its solid state keying circuit. Instead of a direct connection to the amp relay, the RCA plug may be connected to the keying input of an accessory device (DXE-KEYLINE-3, DXE-RTR-2 or DXE-NCC-2), amplifier keying interface (DXE-SV-KR or legacy Ameritron ARB-704 or KD9SV Products SV-KR) or other amp keying line interrupt device, such as a meter or an array controller. Each has a keying input and a keying output for the amplifier relay or another accessory. Another type of amplifier keying cable has two RCA phono plugs, one RED plug for the amplifier relay jack and one WHITE plug for ALC (Automatic Level Control) voltage from the amplifier. The legacy ALC connection does not need to be used with present era solid state transceivers and most modern amplifiers. ALC was required for use on transmitters with tube finals. Some modern amplifiers do not have an ALC output connector. If the amplifier does not have ALC it is okay to leave the WHITE plug disconnected. Order your DX Engineering Transceiver Amplifier Keying Cables to connect to your transceiver accessory port for keying amplifiers, sequencers, receive-transmit interfaces, buffer relays, and other accessories. NOTE: To enable the function of this keying cable, some late model Kenwood transceivers require menu activation of the amplifier keying circuit.
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$59.99