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11 Results Found For "PCB"
DX Engineering Winder and Tie Wrap Combos
DX Engineering Winder and Tie Wrap Combos are designed with the amateur radio portable operator in mind, but they are equally useful for keeping your shack organized. These durable yet lightweight winders are made from FR4 PCB Material, and measure 8 inches by 4 inches. They come in a striking red color and feature a built-in handle, making them easy to spot and handle during portable operations like SOTA and POTA. Their bright color ensures they won't easily get lost in your toolbox, go-bag or in the grass. Each combo includes four winders, ideal for organizing and managing your portable antennas, wire, rope, or even small diameter coax. With the DX Engineering logo proudly displayed on each winder, you can be confident that you are getting a high-quality product. Additionally, each combo comes with a 10-pack of professional quality BongoTies multi-purpose tie wraps, made from highly renewable organic materials: bamboo and natural Hevea rubber. These tie wraps are perfect for securing your wire, rope, or cable to the DX Engineering winder, ensuring everything stays neatly in place.
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$24.99
DX Engineering Transmit Receive Interrupter Plug-In Module
DX Engineering Transmit Receive Interrupter Plug-In Module, DXE-TRI-PM, provides essential protection from the station's transmitted energy picked up by a receive antenna that is connected to the DXE-NCC-2 Channel B Receive Antenna Input active front end. This optional custom PCB relay switch device is typically installed in the top Option Slot of the Channel B rear panel board in the NCC-2. When the transceiver keys the RADIO PTT port of the NCC-2, the DXE-TRI-PM can open or ground the receive antenna input and the board output, as selected by jumpers. It functions independently and does not affect or depend on the settings of the NCC-2 Bias-Tee Enable circuit that places DC on the receive antenna feedline for Active antennas. The DXE-TRI-PM is only in the path of the receive antenna input. It also features a Gas Discharge Tube to protect the front end of the NCC-2 while in the receive mode. Adding a second DXE-TRI-PM Transmit Receive Interrupter Plug-In Module to the the top slot of the NCC-2 Channel A rear panel board is recommended. The gas tube provides pulse energy protection during receive and disconnect or grounding protection when the CH A RX ANT IN port is used for a receive antenna that is physically too close to the transmit antenna. Adding a DXE-TRI-PM can provide input protection for the RTR-2 RX ANT IN during receive and by grounding the receive antenna input during transmissions. Alternatively, the DXE-TRI-PM installed in the DXE-DMC-2 Dual Module Chassis can interrupt or ground any receive antenna feedline or a receiver input. Jumper settings select opening or grounding of the receive antenna input and receiver output. This receive feedline RF switch is operated by toggling 13.8 VDC, on for Receive and off when Transmitting. The DMC-2 PCB jumper HD5 selects operating DC from either the 2.1mm power connector or the "Receiver Output" coaxial cable with a user supplied DC Bias-Tee device, such as the DXE-FVI-1 Feedline Voltage Injector. Remote outdoor installation requires a weather resistant cover.
Not Yet Reviewed
$44.99
Chelegance RF Demo Kit for VNA
Chelegance RF Demo Kit for VNA is a PCB test board and learning tool for use with a Vector Network Analyzer, such as the Chelegance NanoVNA-F. This helpful demo kit includes two 6.8 in. RG178 coaxial cables with IPX to SMA male connectors to connect to one of the sample circuits on the 3.9 x 3.9 in. test board to your VNA. It features the following 18 RF circuits to demonstrate how each appears on the display when using a vector network analyzer: 1. RLC circuit 2. RLC circuit 3. 33 ohm resistance, SWR=1.5 4. 75 ohm resistance, SWR=1.5 5. Band-Stop Notch Filter, Ceramic, Center Freq. = 6.5MHz 6. Band-Pass Filter, Ceramic, Center Freq. = 10.7MHz 7. RC series circuit 8. LC series circuit 9. Single capacitance 10. Single inductance 11. Homemade low-pass filter, 3dB bandwidth 400MHz 12. Homemade high-pass filter, 3dB bandwidth 500MHz 13. Short Circuit 14. Open Circuit 15. 50 ohm Circuit 16. Through Circuit 17. 10dB attenuation circuit 18. 3dB attenuation circuit
Not Yet Reviewed
$28.99
SOTAbeams HF Antenna Trap Kits
SOTABEAM HF Antenna Trap Kits are a clever design with flexible mounting arrangements to make them easy to build and use. They are available in two power levels, 100 watt traps are listed here as SBM-HFAT-101 and 20 watt traps are SBM-HFAT-102. Each kit includes parts to build two (2) traps. Make your portable single band antenna into a multi-bander with our lightweight antenna traps. You decide on the frequency when you build them; recommended range 7 - 25 MHz. Alignment of each trap is accomplished easily with an antenna analyzer. For QRP super lightweight traps, see SOTAbeams PICO TRAPS for 10 Watts (DX Engineering part SBM-PITK-100). Included in each SOTABEAMS HF Antenna Trap kit: -2 x high quality trap PCBs with plated through holes -4 x 100pF 1kv capacitors (used in series or parallel to give 50pF, 100pF and 200pF options) -2 x mounting hardware for toroids -2 x toroids (T94-6 for 100W and a lighter T68-6 toroid for 20W) -Enameled copper wire to suit the power level Traps can be used in one of two ways. These SOTAbeams traps can be used either way, it's your choice: 1) By using a trap resonant on the higher frequency that you want your antenna to work on, traps work as an effective isolator. In this application, the trap needs to be resonated in the band. This configuration makes the antenna easy to adjust as the sections do not interact much. In this configuration, our traps show a loss of typically < 0.7 dB. 2) By using a trap resonant between the two bands that you want to use (typically 1 to 2 % percent below the band edge of the higher band), losses are reduced but adjusting the antenna is much more difficult as the two sections interact. In this configuration our traps show a loss of typically < 0.3dB. We recommend that you resonate your traps at the lowest edge of the band that the trap is to work at. So for a 20m-40m dipole, resonant your trap at 14.0 MHz. This tends to be a reasonable compromise between trap loss and ease of antenna adjustment. Instructions are linked in the Documents tab on the "More Detail" page. SOTAbeams HF Antenna Trap Kits Specifications: PCB Dimensions: 2.599 x 1.181 in. (66 x 30 mm) Insertion Loss: 0.3 – 0.75 dB depending upon resonant frequency Impedance at resonance: 20,000 Ohms, typical Weights: 20 W traps 0.4 oz. (10.6 g), 100 W traps 0.6 oz. (16 g)
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$24.99
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$31.99
Clearance
SOTAbeams Filter Boards and Band Component Kits
SOTAbeams Filter Boards and Band Kits are used for the WSPRlite Classic, WSPRlite Flexi, or for your own QRP transmitter, SDR front-end filter projects or on any receiver. Choose the Low Pass Filter Board and Band Kit components for the specific bands on which you want to use your WSPRlite. Build these high performance seven-element Chebyshev low pass filters to eliminate harmonics and spurs. They function bi-directionally and may be used for QRP transceivers or for receive. Each board features a manual band change jumper header and comes with a SMA male cable to connect to the WSPR lite and a board mount SMA female connector for your antenna feedline adapter or adapter cable. SOTAbeams Filter Boards and Band Kits are available in four versions. These three have a revised board layout: - SBM-LOWPASSKIT Low Pass Filter Kit for 160, 80 and 40 meters, version 1.2 Board - SBM-LOWPASSKITHB Low Pass Kit for 20, 15 and 10 meters, version 1.2 Board These two include the filter components, connector and one cable. - SBM-PCB3BLPF Low Pass Printed Circuit Board only, version 1.2 Board. This kit includes only the board, SMA connector and one cable. Add to your cart the specific component Band Kits for the bands you want to use. All 11 bands are available from 160-6 meters. After you finish building one of these three boards, it fits into the updated accessory enclosure model DXE-LPFV1-2-CASE. NOTE: These three version 1.2 Boards DO NOT fit into the DXE-SB-LPF-CASE -------------------------------------------------------------------------------------------------------------- - SBM-LPFKITDXEPCB Low Pass Filter Kit for 160, 80 and 40 meters, version 1.1 Board. This kit includes band filter components, connector and one cable with the old PCB. When this v1.1 kit completed, it is the only board that fits into the original DXE-SB-LPF-CASE. (NOTE: This v1.1 board does not fit into the updated DXE-LPFV1-2-CASE which fits only v1.2 boards). --------------------------------------------------------------------------------------------------------------- Buy and build more than one SOTAbeams Filter Boards and Band Component Kits to use your WSPRlite Classic or WSPRlite Flexi on more than three bands. Don't forget to add the adapters shown in suggested parts. These low pass filters also work on QRP transmitters and all receivers. DX Engineering is your source for SOTAbeams and WSPRlite products and accessories.
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$39.99
$23.99
Clearance
SOTAbeams LASERBEAM DSP Filter Modules
SOTAbeams LASERBEAM DSP Filter Modules work much better at reducing QRM than mechanical or analog filters. SOTAbeams applies special algorithm-based software to create well-defined passbands with steep contours. SOTAbeams offers their General Purpose, CW and SSB filter modules with switchable passbands. For example, the CW module (SBM-LB-MODULE-CW) may be used with either a 550 to 850 Hz passband, or a wider 300 to 1300 Hz passband. You choose the passband based on your own band conditions. Their SSB module (SBM-LB-MODULESSB) features passbands of either 300 to 2700 Hz or 300 to 2400 Hz. SOTAbeams designers have determined that these passbands work very well for SSB voice filtering. They offer their General Purpose filter module (SBM-LB-MODULE-GP) to accommodate both CW and SSB. These modules have selectable passbands of 550 to 850 Hz and also 300 to 2700 Hz. In this way you may limit CW or SSB QRM that is outside the selected audio passband. Be advised that these modules are NOT of the plug-in style. To use them takes some knowledge and soldering skill. You will also have to add an enclosure, if desired, as well as external parts not supplied with the PCBs. As designed, these modules will drive typical "low power" earbuds all by themselves. They will also drive audio amplifiers or amplified speakers. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Are you tired of battling the QRM? Order SOTAbeams LASERBEAM DSP Filter Modules from DX Engineering to hold those signals at bay!
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$55.99
$33.59
DX Engineering Electronic Protection Components
DX Engineering Electronic Protection Components may be used in a variety of electronics and radio applications. These are wire lead components that can be used on circuit boards or in multi-purpose connection devices. Choose from the components listed for detailed specifications: DXE-MOV-82VDC-10 Metal Oxide Varistor, Surge Protector, max. 82VDC/50VAC Pack of 10 DXE-GDT-4KV-5 Gas Discharge Tube, Surge Arrestor, 4kV, Pack of 5 DXE-TVS-1500-10 ESD Suppressor, TVS Diode, Bidirectional, 17VDC max., Pack of 10 DXE-CAP-PT1UF-10 Capacitor, Ceramic, 0.1uf, 1kV DC, RF Bypass, Pack of 10 ---------------------------------------------------------------------------------------------------------------------------------- This series of protection components are well suited for the DXE-CLTB Control Line Terminal Board that provides a flexible and simplified approach to control line surge protection. The DXE-CLTB is a small, 3 inch square printed circuit board (PCB) with four ten-wire compression screw terminal blocks that handle from 14 to 26 AWG conductors and up to 10A. The two outer terminal blocks are for input and output of the control wires and the two 45 degree angled ten-wire compression screw terminal blocks are for connecting electronic surge protection components. This provides for the choice of components to install between the control line and ground to provide shunt protection. Metal Oxide Varistor (MOV), Gas Discharge Tube (GDT), EMP Suppressor TVS Diodes, RF Bypass Capacitors and other wire lead components are easily connected between the control lines and ground. For effective protection wherever shunt devices are used, a low impedance ground is critical. The DXE-CLTB Control Line Terminal Board has four corner grounding screw holes for mounting on metal standoffs to a metal grounding panel inside an enclosure. DXE-CLTB-M Control Line Terminal Board includes a 10-pack of MOVs.
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$20.99
SOTAbeams BOXA-DUAL Amplifier Kits
SOTAbeams BOXA-DUAL Amplifier Kits are ideal for incorporating into your own designs. However, for additional flexibility these amplifier and enclosure kits have been designed to allow your LASERBEAM-DUAL filter module (not included) to be used with all your favorite radios. They have a professional look that will compliment your shack. BOXA-DUAL enclosures have laser-cut gold panels which screw into a rugged extruded aluminum case. BOXA-DUAL kits consist of a PCB that the filter module (not included) plugs into; together with an audio amplifier. The front panel features the CW Tuning LED (Sig) and Overload LED (Lvl) as well as a bandwidth switch (W/N) and volume control (Vol). The rear panel has 3.5 mm stereo jacks for audio in and out as well as a power jack for a DC supply (5-15 Volts). Power input is via a standard 2.1 mm power plug (supplied). The board will drive headphones or a small speaker. By changing two resistors, audio output can be increased up to 1.5 Watts which will drive a larger speaker. Because the filter module is a plug-in unit you can swap between different LASERBEAM-DUAL modules depending on your application. These kits use all through-hole components and are an easy build for a beginner. Build time is about 30 minutes. IMPORTANT NOTES: These kits: * Include amplifier and enclosure * Do not include a LASERBEAM-DUAL filter module * Are not suitable for LASERBEAM-VARI or LASERBEAM-817 filter modules Are you thinking about a LASERBEAM-DUAL filter module? If so, have a look at these SOTAbeams BOXA-DUAL Amplifier Kits from DX Engineering!
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$35.99
Clearance
DX Engineering SOTAbeams Low Pass Filter Enclosures
DX Engineering SOTAbeams Low Pass Filter Enclosures provide all of the parts to house your SOTAbeams filter boards to work with your WSPRlite Classic or Flexi. Construction of the enclosure and installation of the filter and is easy to accomplish. ------------------------------------------------------------------------------------ Please note, presently we have two enclosures due to the change made by SOTAbeams: DXE-LPFV1-2-CASE is the new enclosure that fits the newer LOWPASSKIT, LOWPASSKITHB and PCB3LPF v1.2 boards. DXE-SB-LPF-CASE is the old enclosure that fits the original SOTAbeams Low Pass Filter v1.1 boards, which we have renumbered as part SBM-LPFKITDXEPCB. Supplies of these originals are limited, and when they sell out they are discontinued. ---------------------------------------------------------------------------------- Made of aluminum for excellent shielding, the enclosure has a soft grommet to protect the SMA cable and two removable covers for the access holes to allow easy manual band switching of the filter. Here are all of the parts contained in the DX Engineering SOTAbeams Low Pass Filter Enclosure Kits: 1 - Aluminum Case - Top 1 - Aluminum Case - Bottom 4 - Phillips Head Cover Screws 4 - PCB Spacers 8 - Phillips Head Screws for PCB mounting 4 - Internal Tooth Lock Washers 1 - Soft Grommet for SMA Cable 2 - Removable Access Plugs 4 - Stick-on Rubber Feet 1 - Label
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$55.99
$41.99
SOTAbeams Click2Tune Transceiver Keying Switches
SOTAbeams Click2Tune Transceiver Keying Switches are the answer for effortless ICOM low-power tuning. If you use one of many ICOM HF radios with an antenna tuner or amplifier you have noticed the lack of any convenient way to send a low-power carrier for tuning purposes. To do so requires that you to change the mode to AM or FM, reduce the power, and press the PTT. It's annoying in the shack and can be very frustrating in the field. This is all the more of a problem if you use a narrow-band antenna such as a magnetic loop that needs frequent re-tuning. It's also a problem if you use your transceiver with an amplifier. Various "solutions" have been suggested, the most common being a dongle with a capacitor and a resistor. While this works, the tune period is fixed and it will not tune reliably twice in short succession. The fixed tune period is particularly problematic if you use your radio with a high power amplifier, because if you do see a mismatch you'll want to act quickly. Click2Tune for ICOM radios provides you with complete and reliable control. It transmits a low power carrier (user selectable level) without any need to change the mode and for as long as you press the button - YOU are in control. SOTAbeams worked hard on getting the ergonomics right so that it sits nicely in your hand and they even tried three types of buttons before they found one that had the right size and "feel". They are great accessory for any ICOM radio that supports their auto-tuner. Tested on: IC-7300, IC-7100, IC-730, IC-746 (ant. 1), IC-9100 (ant. 1). For example, if your transceiver supports the ICOM AH-4, you'll be good to go! Click2Tune for ICOM is available as a kit. This kit's build time is around 30 minutes. Order DX Engineering part number SBM-CLICK2TUNEKT for the build-it-yourself kit version. In the kit you'll get: * Genuine Molex components * Mil spec 4 wire shielded cable for good RFI performance (1 meter long) * Top quality professional switch * Double-sided professional PCB and other quality parts (total 17 parts) Make it easy to tune your ICOM transceiver on LOW POWER. Order your SOTAbeams Click2Tune Transceiver Keying Switches from DX Engineering!
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$20.99
DX Engineering Low Power Balun Center Insulators
DX Engineering LPB-B Low Power Balun Center Insulators feature an amazing Hi-CMI 50-ohm 1:1 Balun built onto a Center Insulator board, and a BNC female right-angle connector pre-installed. Designed for portable operations on HF bands, these baluns let you join the fun of making a high-performance Single Band or Multi-Band Linked Dipole! This coax wound toroid achieves an amazing common mode impedance (CMI) curve, with an RF choking capability that far exceeds 'a-few-beads-on-coax' products that are offered by other suppliers, and they can handle up to 250 watts on SSB voice, or 100 watts or less on CW or Digital modes on frequencies below a 2:1 SWR. They are designed for building a center supported Inverted Vee Dipole (not end supported) and are great for use with DX Engineering Nomad Portable Telescopic Masts (sold separately). Great for POTA, SOTA and JOTA, low-cost DIY Low Power Balun Center Insulators are ready for use on a monoband resonant or link-clip multi-band resonant wire antenna for portable or long-term temporary operations. These Low Power Balun Center Insulators are the heart of the DX Engineering Low Power Portable Dipole and Winder Kits.
Not Yet Reviewed
$49.99