Availability
SOTAbeams HAM Radio Products
SOTAbeams makes telecommunications products tailored specifically to the Ham Radio community, including the popular WSPRlite Propagation and Antenna Tester. The WSPRlite...
SOTAbeams makes telecommunications products tailored specifically to the Ham Radio community, including the popular WSPRlite Propagation and Antenna Tester. The WSPRlite is a specialized test beacon that uses WSPR technology to transmit to a worldwide network of receiving stations. WSPRlite displays a transmit signal’s geographical range as well as received power on an easy-to-read propagation map. You can get the WSPRlite, filter kits, and many other SOTAbeams accessories at DX Engineering.
SOTAbeams makes telecommunications products tailored specifically to the Ham Radio community, including the popular WSPRlite Propagation and Antenna Tester. The WSPRlite is a specialized test beacon that uses WSPR technology to transmit to a worldwide network of receiving stations. WSPRlite displays a transmit signal’s geographical range as well as received power on an easy-to-read propagation map. You can get the WSPRlite, filter kits, and many other SOTAbeams accessories at DX Engineering.
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.
( 3 )
$39.99
$7.79
—
$23.99
SOTAbeams LASERBEAM-VARI Digital Variable Bandwidth Audio Filter Module
SOTAbeams LASERBEAM-VARI Digital Variable Bandwidth Audio Filter Module - the perfect addition to your project or your existing radio. Unlike analogue filters, digital filters provide near-perfect characteristics. Because of the way that they are implemented, they are better than analogue filters in almost every way! LASERBEAM-VARI Modules been designed for ease of use. One simple control allows you to continuously vary the bandwidth or the center frequency of the filter. All settings produce the same great filters with flat pass bands and steep skirts. Whether you need passband tuning, filters for digital modes and APRS, low pass filters or CW filters, the LASERBEAM-VARI does it all in one compact module. Dial up EXACTLY the filter you need. •Bandwidth 200Hz - 3500Hz •Max Passband 200Hz - 3500Hz •Indicator outputs for tuning mode (bandwidth or center-frequency) •On board overload indicator •User-defined power-up filter settings •Two gain settings Great for all modes: SSB-CW-Digi-AM-NBFM. A single clickable rotary encoder provides the main functionality. Click to switch between variable bandwidth or center frequency. Store your favorite setting as a power-up default. Simple but very effective, this filter is continuously variable and always has near perfect characteristics unattainable with conventional analogue techniques. Kit includes: •filter module PCB (ready-built), •Bourns rotary encoder (6mm diameter shaft) , •3 x LEDs, •2 x 10 way headers, •7 resistors, 2 capacitors NOTICE: NO enclosure or instructions are provided. All construction data is online at SOTAbeams.co.uk Simple to use: the instructions are downloadable here. The instructions contain information to allow users to control the filter using a microcontroller. Example filters These plots have been made by testing a LASERBEAM-VARI using a professional audio spectrum analyzer (QuantAsylum QA400). Remember that the LASERBEAM-VARI can synthesize any bandpass filter that you want (200-3500Hz). Click on the links below to see the filters. •Typical SSB filter •Typical 200Hz CW Filter •Typical 200Hz CW filter but at 3kHz •Wide filter
( 1 )
$65.99
SOTAbeams Fuser 6 DC Distribution Boxes
SOTAbeams Fuser 6 DC Distribution Boxes are the lightest PowerPole® distribution boxes… by far! SOTABEAMS PowerPole® Fuser-6 boxes make light work of connecting five accessories to your power source (they have one input and 5 outputs). All of the connectors are individually fused. In a typical shack you might have a 100 Watt HF radio, a 50 watt 2m FM radio, an antenna tuner and a QRP rig all connected to your Fuser-6 - and still have a spare connector! Fuser-6 boxes are supplied with three 25 Amp and three 5 Amp fuses. Standard automotive blade fuses make replacement easy - these are widely available with values from 1 to 30 Amps. Fuser-6 units incorporate a polarity warning system; lights GREEN for CORRECT and RED for REVERSE. It's handy when you have a battery connected to the system to help avoid damage to your equipment if you accidentally get the battery connections reversed. Fuser-6 internal circuitry is rated at 25 Amps (30 Amp surge); no mean feat for a PCB design. To achieve SOTAbeams had to use a special PCB with double weight copper. They also use a clever design to further improve the current handling: ultra-wide copper tracks are used on both sides of the board. The boards are then roller tinned (on both sides) to reduce the resistance and handle heat even better. They use plated through holes, carefully located to ensure an even current distribution between each face of the board. Of course, Fuser-6 boards use genuine Anderson PCB contacts for lower contact resistance and improved reliability. NOTE: For best kit results use a soldering iron of at least 50 Watts. Additional flux is also helpful to ensure a good result. Additional details: * 25 Amps continuous, 30 Amps surge (adjacent connectors) * 1 input, 5 outputs * Power Bus resistance typically less than 1.80 milliohms end to end * Weight 135 g (less than 5 oz.) * W 68 x L 130 x H 40 mm (excluding connectors) 2.75 x 5 x 1.6 in. Whether you use one for your go kit, QRP setup or for use in the shack, these SOTAbeams Fuser 6 DC Distribution Boxes from DX Engineering are a handy DC power solution.
( 5 )
$69.99
—
$85.99
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!
( 1 )
$33.59
—
$55.99
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)
( 4 )
$24.99
—
$31.99
SOTAbeams Pico Trap Kits
SOTAbeams Pico Trap Kits are a pair of miniature antenna traps that you can build to create a super lightweight portable multiband HF wire antenna. Designed for QRP portable operations at 10 watts or less, Pico Traps allow the hobbyist to make their own two or three band dipole or end-fed halfwave. Pico Traps are: - The smallest, lightest traps on the market - Easy to adjust in series or parallel modes - Super for multi-band stealth antennas - Streamlined shape to reduce snagging on vegetation - Attachment points for antenna wire. Work great with Stealth Wire - Easily waterproofed with Liquid Electrical Tape for extended use - Can be mounted inside of 1 inch PVC conduit - Weigh less than 0.2 oz. Perfect for use with IC-705, FT-817, FT-818, KX3, KX1, HB1B and other similar radios. Instructions are linked in the Documents tab on the "More Detail" page. What do you get with a Pico Trap kit? 2 x High quality Pico Trap PCBs 2 x T50-6 toroids 2 x nylon mounting kits for toroids 2 x SMD 100pF AVX RF Capacitors, 0805 High Q, Ultra-Low ESR 22 AWG (0.6mm) wire for toroids Pico Trap Kit Specifications: Size: 1.4 x 0.6 in. (36 x 15 mm) Weight: less than 0.18 oz. (5 g) Low loss: typically less than 0.35 dB. Less than 0.75 dB worst-case. Inductor Q: > 240 @ 14 MHz [Source - MicroMetals] Capacitor Q: >> 1000 @ 14 MHz Rp: > 24,000 Ohms @ 12 MHz Suggested resonant frequency range: 10 - 25 MHz Power rating: 10 Watts Higher power SOTAbeams Trap Kits are available from DX Engineering: 100W: SBM-HFAT-101 20W: SBM-HFAT-102
( 2 )
$19.99
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!
( 1 )
$35.99
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!
( 24 )
$20.99
SOTAbeams WSPRlite Power Conditioner Kits
SOTAbeams WSPRlite Power Conditioner Kits are ideal for running your WSPRlite Antenna Performance Analysis System from a battery or "wall-wart" power supply. WSPRlite Power Conditioners convert any 7 - 20 Volt DC supply into a super-clean and quiet 5 Volt USB supply - perfect for your WSPRlite! SOTAbeams use a linear regulator to avoid the noise problems so often associated with cheap switching regulators. Rated at 200 mA and with a re-settable breaker, these power conditioners will keep your WSPRlite happy - and safe too. Their DC input is protected against voltage spikes by a special TVS diode and is provided with additional smoothing with a low-ESR input capacitor. These features have been added in case you wish to use your WSPRlite in a mobile setting. Unlike simple chargers, SOTAbeams also condition the data lines to avoid unwanted noise affecting your WSPRlite. WSPRlite Power Conditioner Kits are supplied with a PowerPole for the DC input and a standard USB output. It's ideal for running your WSPRlite at home or in the field! The PCB has M3 mounting holes (mounting hardware is not supplied with board kit). These kits require assembly, including soldering to a PC board. However, they are suitable for beginners. Supply clean, stable power to your WSPRlite! Order SOTAbeams WSPRlite Power Conditioner Kits from DX Engineering!
( 3 )
$16.99