Availability
37 Results Found For "noise"
bhi NCH Active Noise Canceling Headphones
bhi NCH Active Noise Canceling Headphones reduce ambient background noise enabling you to have a more enjoyable listening experience. These ultra-lightweight, over-the -ear style noise canceling headphones also give good passive audio isolation from external noise. They are an excellent choice for those wanting to reduce aircraft cabin noise, air conditioning noise, train noise, ambient background noise and similar types of continuous environmental noise. Enjoy a greatly improved listening experience where a fan or air conditioner is running while listening to a radio, an audio device or watching a video. The adjustable headband and soft over-ear pads make sure that the headphones are a comfortable fit. The NCH headphones require one AAA alkaline battery (supplied) and a handy switch allows the active noise cancellation to be turned on and off. A green LED indicates when the NCH is active. NOTE: Avoid wearing headphones when driving, cycling, or any activity that requires quick reactions, whenever hearing must not be impaired. Do not wear headphones for extended periods of time at high audio level as damage to hearing is possible. Features and Specs of the bhi NCH Active Noise Canceling Headphones: * Comfortable over-ear style headphones * Active noise cancelling: 12 - 15dB * Magnet: Neodymium * Frequency Response: 20 - 20,000 Hz * Maximum Input: 40 mW * Sensitivity: 110 dB * Impedance: 32 ohms * Weight: 0.42 lbs. (190g) including battery * Cable length: 4 ft. (1.25 m) detachable * Supplied with 1 x AAA alkaline battery * Battery life: 45 hours
( 13 )
$87.99
West Mountain Radio CLRmodule ClearSpeech® DSP Noise Reduction Board
West Mountain Radio CLRmodule ClearSpeech® DSP Noise Reduction Board – a DIY project for DSP filtering. Once configured and developed, the CLRmodule can connect directly to a radio audio. It is extremely effective in making improvements to the clarity and readability of radio communications. QSO's will be more enjoyable without the fatigue of background noise. In many cases, there will be a noticeable improvement in understanding weaker signals, making contacts, and general listening. CLRmodule Digital Signal Processor (DSP) noise reduction is excellent for passing voice and CW as the DSP recognizes the intermittent nature of CW and allows it to pass noise free. It attenuates atmospheric noise, hum, hiss, whistles, and static and effectively removes heterodynes, ignition noise, lightning crashes and power line noise. The process is dynamic and changes with the interference and the signal, but the effect is rewarding. Operation is more fun without all of the background noise. Click "More Details" and the link to the manual in the Documentation tab to read and understand very important details about how to utilize this DIY project device- the West Mountain Radio CLRmodule ClearSpeech® DSP Noise Reduction Board.
Not Yet Reviewed
$99.95
PolyPhaser Coaxial Lightning Protectors
PolyPhaser Coaxial Lightning Protectors are designed for general, single-transmitter use in the 1.5 to 700 MHz frequency range. PolyPhaser protectors are available in two mounting styles: "Bulkhead Mount" protectors have a longer connector and hardware to mount it through the grounding panel. "Flange Mount" protectors anchor to a grounding panel with both connectors parallel to a flat surface. PolyPhaser Coaxial Lightning Protectors use a DC blocked specially configured gas tube design that has no DC continuity between the two center pins. PolyPhaser's multi-strike products are designed to pass RF frequencies and block all DC. These protectors appear as a DC open between surge and protected ports and offer industry-standard protection. PolyPhaser protectors are suitable for all types of antennas, even "floating" antennas that are not DC grounded. With PolyPhaser DC Blocked protectors, any slow voltage build up from wind driven rain, snow or dust, will not get to the equipment. As the protector reaches threshold for turn-on in a dc blocked circuit, it will go into a momentary soft turn-on as the gas barely ionizes and bleeds the static charge to ground. This does not create noise since it will not get to the arc mode and lasts only a short time. PolyPhaser protection devices have been chosen and specified by communications systems engineers and technicians for 24/7 service in broadcasting, commercial, military and government installations. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Trusted by Amateur Radio operators for over 40 years, PolyPhaser Coaxial Lightning Protectors are ready for your antenna system installations. They are available here, at DX Engineering.
( 64 )
$93.99
—
$99.99
DX Engineering ISO-PLUS Ethernet RF Filters
DX Engineering ISO-PLUS Ethernet RF Filters are very effective EMI Suppressors that are quickly and easily connected inline on Cat5e or Cat6 network cables. Their patented* design provides common mode RF interference and EMI noise filtering of radio frequencies from well below 1 MHz to 100 MHz and beyond. DX Engineering ISO-PLUS Ethernet RF Filters have no effect on throughput; Ethernet data signal levels and speed remain unchanged. *US Patent No. 11,211,679 B2 Electromagnetic interference (EMI), also known as RF interference (RFI), can be imposed onto your received radio and data signals from many electronic devices normally found around a residence, a radio room or a business network. Areas of major concern are the Gigabit Ethernet Cat5(e) and Cat6 cables used for network (LAN) connections between personal computers, printers, multi-port switches, cable modems, routers and radio transceivers, and between many other devices. DX Engineering ISO-PLUS RF filters, installed on both ends of Ethernet cables, work two ways. First, they can mitigate RF interference caused to the Ethernet connected device. Second, they can reduce interference to radio receivers and other Ethernet devices that is caused by RFI or EMI generated by an Ethernet connected device. ISO-PLUS filters are sold in pairs and are normally installed at each end of an Ethernet cable; one filter at the RJ-45 Ethernet plug of the first device and the other filter at the RJ-45 Ethernet plug of the second device. Each ISO-Plus comes with one six inch shielded RJ-45 patch cable (color may vary). They are designed to be installed in pairs; offered in a 2 filter package DXE-ISO-PLUS-2 or a 10 filter package DXE-ISO-PLUS-10. Click "More Details" below for additional information. DX Engineering ISO-PLUS Ethernet RF Filters are an important tool to improve productivity and radio reception of weak signals. "If you can't hear them, you can't work them." Order ISO-PLUS Ethernet RF Filters exclusively from DXEngineering.com
( 49 )
$81.99
COMTEK CFC-50X Common Mode Feedline Chokes
COMTEK CFC-50X Common Mode Feedline Chokes are designed to suppress unwanted RF currents on the outside of the shield on coaxial feedlines. These 1:1 inline coaxial feedline chokes are built with fifteen Mix-31 ferrite beads on premium DX Engineering RG-8X coaxial cable, offering improved performance for a wide variety of antenna systems. COM-CFC-50X Key Benefits: • Provides Effective Shield RF Current Suppression from 1.8 to 54 MHz, helping eliminate common mode currents that cause RF feedback and noise inside the feedline. • Consistent and balanced pattern across frequency range: Excellent RF choking isolating the feedpoint prevents current imbalance, which preserves radiation pattern and antenna performance.
( 3 )
$59.99
DX Engineering LPFC-BNC Low Power Feedline Chokes
DX Engineering LPFC-BNC Low Power Feedline Chokes are intended to be placed in line with coaxial cable fed antennas and equipment used for portable operations, including POTA and SOTA activations. The DXE-LPFC-BNC coax wound toroid achieves an amazing common mode impedance (CMI) curve, with an RF choking capability that far exceeds the CMI of 'a-few-beads-on-coax' product that is offered by other suppliers. Actually, these "Low Power" Feedline Chokes can be used in any station that runs less than 250 watts SSB, 100 watts CW or Digital. ________________________________________ DX Engineering Low Power Feedline Chokes features and benefits: - A unique, lightweight form, with clear heat shrink over the choke* - Light enough to hang inline at the feedpoint of any portable HF antenna. - BNC female connectors for easy connection to portable antennas and gear. - Much higher CMI that other portable, low power chokes, especially across the 40 through 6 meter bands. - Frequency range of 1.8 through 54MHz. - RF Power Handling up to 250 watts PEP SSB, 100 watts CW and Digital (at SWR <2:1). - Recommended for general use to isolate either end of a coaxial cable. * Not intended for permanent outdoor use unless mounted inside a weatherproof enclosure. ________________________________________ These chokes are ideal for use at any HF transceiver or receiver antenna connection, portable, mobile or base. In most cases, DXE-LPFC-BNC prevents RFI, stops stray RF and noise on the feedline from getting into the receiver that would cover up weak signals, and improves efficiency of the antenna system. For any station, including POTA and SOTA, mobile and base, DX Engineering Low Power Feedline Chokes keep the RF controlled.
Not Yet Reviewed
$59.99
DX Engineering Ferrite
DX Engineering Ferrites are partially magnetic metal and ceramic mixes available in a variety of forms, including toroid core, bead type and plastic-covered split-bead ferrite called snap-beads. They are used in a myriad of RF suppression applications to mitigate RFI (radio frequency interference) as well as to reduce pulse and other types of RF noise interference. Special ferrites are used for experimentation and electronic circuit building and for making transformers, RF chokes and antenna baluns. The variations of magnetic and non-magnetic metals and non-metal ceramics used to make ferrites are called "Mixes" and each has different radio frequency properties or ranges. Therefore, different mix number ferrites are typically used for different applications within those ranges, determined by decades of experiments by engineers and applications by hams. Each Mix has been assigned a color code to help identify the ferrite, so numerical labeling is not used on the metal. Color coded ferrite can be identified long after the numbered package is discarded or has disintegrated with time. How do they work? Simply use snap-on beads on a cable or wire. An even more effective choke takes a few to several turns of a wire or cable through and around a ferrite snap-on bead or toroid core. This mitigates RFI to, or from, the connected RF noise producing or noise affected electronic device. The results can be very surprising. Solving noise and RFI can be frustrating. Due to the nature of RF and noise interference suppression; the techniques of appropriate use of ferrites can take a bit of trial and error, but are often the best solution for a difficult problem. Use DX Engineering Ferrite for an incredible range of electronic circuits, noise abatement and RF suppression projects. The details of DX Engineering Ferrite mixes and types appear in each product description. Sizes and applications are discussed in "More Details" and in the literature available at the "Documentation" tab of each of these products.
( 197 )
$51.99
—
$99.99
DX Engineering High CMI Receive Feedline Chokes
DX Engineering High CMI Receive Feedline Chokes achieve exceptionally high isolation between the input and output connector shields to effectively block common-mode RF noise and unwanted signals that collect on 50 or 75 ohm receive antenna feedlines. Ongoing research and development by the design team at DX Engineering has produced two bidirectional Receive Feedline Chokes; a 50-ohm model with BNC female connectors and a 75-ohm model with Type-F female connectors. Both chokes cover the RF frequency range 100 kHz through 30 MHz. They exhibit very high common mode impedance* (CMI typically over 8,000 ohms across the 160, 80, and 40 meter bands) and feature DC pass capability up to 700 mA at 13.8VDC, with extremely low SWR and negligible insertion loss. Affordable DX Engineering High CMI Receive Feedline Chokes will be considered the best, most versatile receive chokes ever produced for typical low band receive antenna applications.
( 3 )
$59.99
—
$64.95
INRAD DMS-1 PTT Desk Stands
INRAD DMS-1 PTT Desk Stands are attractive desk microphone accessories, with a lockable Push-To-Talk switch. They are ready for your INRAD microphone, or other standard stage microphone, with a 1 in. body. The DMS-1 base is metal, painted dark grey, which weighs a hefty 2.5 lbs. to keep it from sliding around or being knocked over easily. Total weight of desk stand and microphone is over 4 lbs.! The included rubberized microphone clip easily grips the microphone body, and mounts with locking star nut onto the 3.125 in. tall, standard 5/8 in.-27 threaded metal chrome stand pipe. A circular rubber ring in the threaded base for the standpipe and mic clip provides an integral shock mount for noise isolation. A large push-to-talk bar switch is on the front of the desk stand base. Lock the PTT for long transmissions by moving the top-side silver slider switch to the left while the PTT switch is down. To release, slide the switch back to the right. Optional INRAD microphones come with a pro-style 3-pin XLR connector and 7 ft. 9 in. adapter cable with 1/8 in. plug (3.5mm male). Included with the DMS-1 is a handy 9 in. version of that mic cable, for a better looking desk mic setup. The back of the DMS-1 base has a 1/8 in. jack (3.5mm female) for the audio from the microphone and a 4-pin XLR male output to deliver the audio and PTT from the DMS-1 PTT Desk Stand to the transceiver. Selected by transceiver, choose one required INRAD coiled cord adapter cable (DM Series) terminated with 4-pin XLR female and a specific transceiver microphone female connector: * INR-DM-I --Adapter Cable for INRAD DMS-1, 4-pin XLR to Icom 8-pin round Mic Input * INR-DM-K --Adapter Cable for INRAD DMS-1, 4-pin XLR to Kenwood 8-pin round Mic Input * INR-DM-Y – Adapter Cable for INRAD DMS-1, 4-pin XLR to Yaesu 8-pin round Mic Input * INR-DM-YM -- Adapter Cable for INRAD DMS-1, 4-pin XLR to Yaesu 8-pin modular Mic Input Own multiple transceiver models with different mic jack configurations? It's as easy as unplugging the cable from the rear of the DMS-1 base and connecting the next DM Series transceiver mic cable. Want a different on-air sound from a different INRAD microphone? The M-Series microphones are interchangeable. To change from one mic to another, unplug the 3-pin XLR cable from the back of the mic and pull it off the clip. Plug in the new mic, put it on the stand. It's that simple. Order your INRAD DMS-1 PTT Desk Stand and optional DM adapter cables from DX Engineering.
( 16 )
$85.95
Kenwood Mobile Speakers
Kenwood Mobile Speakers provide the excellent received audio that you expect from your transceiver. Choose a compact slim model that sounds great for its size or a large model that handles high power. These speakers reproduce a big sound that can be heard over the road noise, and have metal mounting brackets to place and position your speaker as you desire. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Great for base operations as well, let Kenwood Mobile Speakers do the job that mobile radio speakers cannot. Order one for your mobile transceiver from DX Engineering!
( 11 )
$65.99
DX Engineering Bead Choke Standoff Kits
DX Engineering Bead Choke Standoff Kits bring a practical solution to a serious problem when ferrite chokes are placed directly onto the metal boom at the feedpoint of beam antennas. A number of Amateur Radio operators and antenna engineers have known for years about the superior choking function of many ferrite toroids beads placed directly on the coaxial cable, as compared to standard feedpoint baluns. A more recent revelation is that the proximity of ferrite beads on coax taped to the aluminum boom of the antenna drastically reduces their effectiveness. DX Engineering Bead Choke Standoff Kits are mounting systems, made of fiberglass or acetyl standoff rods (color varies), PVC carriers and stainless steel hardware, available in four versions. Two sizes of PVC cradle tubes handle two different types of RF bead chokes; 3/4 inch outside diameter (OD) ferrite beads on RG-400 size cable, and 1 inch OD ferrite beads on RG-213 size 0.405 in. coax cable. Each are offered with two different boom size clamps, 2 inch OD and 3 inch OD. Bead Choke Standoff Kits simply hold an RF bead choke and feedline 4 inches away from the metal beam antenna boom (or 4 inches away from the metal mast for a dipole). They maintain the optimal choking performance of ferrite beads on coax. Using DX Engineering Bead Choke Standoff Kits, ferrite bead chokes function at peak performance for these key results: • Prevent feedline radiation of RF • Preserve current balance for proper beam antenna pattern • Prevent feedline shield exterior collected noise and signals from entering the antenna and interior of the feedline, resulting in lower noise floor and enhanced reception The absolute superiority of RF chokes made of many beads on the feedline, over the traditional enclosure balun, is becoming better understood in Amateur Radio. They achieve the best possible RF isolation of the feedline from the antenna and provide completely balanced currents at the feedpoint. Plus, they provide quieter reception with reduction of common-mode noise. Keeping Bead RF Chokes away from metal preserves the optimal function of this method of antenna feedpoint current balance and isolation. This mechanical requirement is simple and practical with DX Engineering Bead Choke Standoff Kits.
( 3 )
$52.79
—
$65.99
Clearance
Astron Power Supplies
When you are in need of reliable DC power supply, look no further than Astron Power Supplies. This line of linear DC power supplies are made of heavy-duty, high-quality materials. Astron has your power requirements covered with a wide variety of voltage and amperage outputs and case styles with and without meters. Even their power supplies with only cigarette lighter sockets or with Anderson Powerpoles on the front panel still have DC output terminals on the rear panel. That's convenient! Astron linear-type transformer power supply features include: * Solid state electronically regulated * Fold-back current limiting protects power supply from excessive current and continuous shorted output * Crowbar over voltage protection on all models except RS-3L, RS-4L and RS-5L * Tight regulation and low ripple at low line input voltage * Heavy-duty heat sink (70A models add a low noise fan) * Three conductor power cord * All metered units feature backlit meters At DX Engineering, we bring you only the best - Astron Power Supplies do not disappoint! Performance specifications: * Input Voltage: Most models are built for 105 to 125 VAC input. Some "220" models are built for 210-250 VAC input. * Output Voltage: As Listed * Ripple less than 5 mv peak to peak (full load and low line) At DX Engineering, we bring you only the best - Astron Linear Power Supplies do not disappoint! For reliability and convenience, look to Astron Power Supplies from DX Engineering.
( 128 )
$106.95
$90.91
—
$99.95
DX Engineering Clifton Laboratories Z10000 Buffer Amplifiers
DX Engineering Clifton Laboratories Z10000 Buffer Amplifiers may be the products most often requested by radio experimenters and electronics enthusiasts. These are the very popular circuits, designed by Jack Smith, K8ZOA (SK), that are crucial for adding a SDR receiver and panadapter display capabilities to a receiver or transceiver which lacks that feature. The Z10000 Buffer Amplifier's high-input impedance can safely tap the early-stage broadband Intermediate Frequency (IF) signal from inside your radio and feed the buffered and amplified low impedance IF signal to your external SDR receiver. It can then produce a spectrumscope - waterfall display pattern of the receiver signals on a compatible tablet or monitor and PC that is running the appropriate third party SDR software. DX Engineering offers two Clifton Labs Buffer Amplifier Kits to add an IF output SMA connector to the rear panel of your radio: * The DXE-Z10000U-KIT is the Universal Buffer Amplifier Kit that covers 50 kHz to 100 MHz. This kit is designed for those willing to do an internal modification, and will output the IF signal of virtually any receiver or transceiver that has an IF in that range. However, the DXE-Z10000U-KIT can be used as a buffer and low-gain preamp between any low level RF devices that operate in that range. As a buffer, this circuit provides over 90dB of reverse isolation to protect the IF stages of the radio from possible birdies on an SDR receiver input. So, even if your radio has an IF output connector, the DXE-Z10000U-KIT may be used externally, with a user-supplied shielded metal enclosure, to be certain to maintain proper radio operation. * The DXE-Z10000K2-KIT is the Buffer Amplifier Kit specifically tuned to the 4.915 MHz IF signal of the Elecraft K2 transceiver. It offers the same high reverse isolation, plus the added benefit of a tuned IF input with a narrower bandwidth of operation and a potentially a lower noise floor on the output. Both Buffer Amp kits contain the updated, completely assembled and tested DX Engineering Z10000C PC Board with a nominal 6.5 dB gain, retaining all the benefits of the reliable original Z10000B boards. Both kits include our finished printed circuit board, required coaxial cables assemblies with special connectors, insulating materials, and hardware—all for an easier installation than ever before! A third party SDR receiver, software (typically free) and compatible tablet or PC and monitor are required to make use of the IF signal provided by the Z10000 Buffer Amplifier and see the signals that your old radio can hear. Due to the high number of specialized radio installations, no printed instructions are included with these buffer kits. Instructional web links are found on the part detail webpages. Installation web documents and videos are only available online. The legacy that was built by Jack Smith, K8ZOA (SK), with Clifton Laboratories, lives on with select products, exclusively from DX Engineering. NOTE: DX Engineering cannot provide electronic technical support of devices installed in user radios and is not responsible or liable for damages that occur to a user radio due to improper or erroneous techniques during the installation of this product. Unplug all electronic devices when working on them and observe all electrical safety and electrostatic discharge precautions when opening sensitive electronics. Modification of a radio should only be attempted by individuals with advanced experience on electronic circuit repair and operation.
( 24 )
$51.99
—
$61.99
Yaesu MLS-200-M10 External Speakers
Yaesu MLS-200-M10 External Speakers are specialized to work with Yaesu FTM-10R, FTM-100DR and FTM-400DR transceivers only. These moisture and dust resistant, 4 ohm speakers handle high level audio, at a maximum of 12 watts, for use in high noise locations. Supplied with a mounting bracket and hardware, MLS-200-M10 Speakers have an unusual three-conductor miniature plug also known as TRS, or tip, ring and sleeve. This speaker cable connector combines the main and sub, from tip and ring, so they play both receivers of a dual receiver radio. Connect this capable model to almost any Yaesu or other brand transceiver that is compatible with a 4 ohm speaker. Order yours from DX Engineering!
( 8 )
$59.99
DX Engineering HF QRP Bandpass Filters
DX Engineering HF QRP Bandpass Filters are designed to tightly confine both transmitted and receive signals to one specific Amateur band, these filters significantly reduce out of band noise, resulting in a noticeably lower noise floor and improved weak signal reception. In multi operator contest or portable operations, they deliver the essential isolation needed to eliminate image and harmonic interference, ensuring clean mono band performance even in close quarters environments. Each filter features a sharp roll off just outside the band edges, providing exceptional rejection of adjacent band signals and maintaining maximum operating efficiency for QRP applications. Offered for the 80, 40, 20, 15, and 10-meter amateur bands, they install easily in line with the coax feedline using the BNC connectors provided on each end. With power ratings of 20 watts SSB and 5 watts digital, they are ideal for QRP enthusiasts participating in multi operator events such as Field Day, POTA, and SOTA.
Not Yet Reviewed
$69.99
DX Engineering Tinned Copper Radial Wire
DX Engineering Tinned Copper Radial Wire is the same wire as used by the most successful contest stations and DX enthusiasts for their ground-mounted vertical antennas. This 16 AWG tinned solid copper wire is an extremely cost effective solution for the high-count, full-size ground radial wire systems that are required for top-performing HF vertical antenna installations. This is especially true for 4-element Four Square Array Systems, 3-element ProStack Arrays, and 2-element Dual Vertical Arrays. Why is this wire the absolute best choice for any ground-mounted vertical antenna? Because, DX Engineering Tinned Copper Radial Wire will last much longer in a variety of soil conditions as compared to bare copper, copper coated steel and aluminum wires. Unfortunately, radials deployed with those other wire types actually corrode and degrade rather quickly, but do so slowly enough that the operator may not easily perceive that degradation in terms of antenna system performance. Full radial system integrity is maintained for a much greater number of years with tinned copper wire. Depending upon soil type, installations with DXE-TCRW16 will maintain vertical antenna performance for many, many years… and even decades. DXE-TCRW16 is available in small, easy to handle spools in lengths of 500 feet (DXE-TCRW16-500), 1,000 feet (DXE-TCRW-1000), 2,500 feet (DXE-TCRW16-2500) and 5,000 feet (DXE-TCRW16-5000). NOTE: To prevent accelerated corrosion and the possibility of noise, do not use metal anchor pins (lawn staples) on Tinned Copper Radial Wire. Use only DXE-STPL-100BD Biodegradable Anchor Pins to hold down bare wire radials. DX Engineering Tinned Copper Radial Wire is the right choice for long lasting top-performance radial systems for your ground-mounted vertical antenna system.
( 2 )
$99.99
bhi Extension Speakers
bhi Ltd Extension Speakers are robust, well made speakers that are suitable for use with bhi in-line DSP modules or as a standalone external speaker for your radio. For a standard, non-DSP external speaker, choose from these three rugged, high-quality bhi models: * EXTSPK25 * LSPKR * SPKR8 Details on each appear below: * EXTSPK25 features: -- This model is destined to be considered as one of the best sounding passive Extension Speakers on the market! The EXTSPK25 is a top-of-the-line 8 ohm two-way passive speaker for the shack. It is a well-crafted large speaker which is essentially the same as the bhi DESKTOP model, but without the built-in DSP and power amplifier. Perfect for direct connection to DSP units with audio power amplifiers such as the bhi EQ20, it may also be connected directly to a transceiver. The EXTSPK25 features a 4 in. bass driver and a 1 in. tweeter for excellent audio. It connects with most transceiver and receiver standard mono "external speaker" output or a DSP unit speaker output. * LSPKR features: -- Large, full range 4 in. mobile-style extension speaker -- Adjustable mounting bracket that also serves as a stand -- 20 watts power handling -- 4 Ohm impedance -- 78 in. integral cable with 3.5mm mono plug * SPKR8 features: -- Compact, 3 in. communications speaker -- Pedestal stand--flat surface mount with speaker angle adjustments -- Passive Noise filter -- Frequency 100 to 10KHz -- 8 watts power handling -- 8 ohm impedance -- Integral cable with 3.5mm mono plug -- Dims: 3.54 x 3.58 x 5.28 in (90 x 91 x 134 mm) -- Weight: 1.2 lbs. (0.56Kg)
( 14 )
$74.99
DX Engineering RG-400 High Isolation Coaxial Cable Assemblies
DX Engineering RG-400 High Isolation Coaxial Cable Assemblies bring to your RF systems the same quality and capabilities that are demanded of military and aerospace installations. Here are few reasons why we offer these advanced RG-400 cables for your critical applications: - Extremely high isolation from noise and signals from adjacent cables - Very high power handling - 2.75 kW at 30 MHz - Stranded silver plated copper center conductor for extreme efficiency - PTFE dielectric for exceptional dimensional stability, low loss and very high power handling - Silver plated copper braided double shields for very high isolation - Tough, waterproof fluorinated ethylene propylene (FEP) - MIL-C-17 jacket DX Engineering RG-400 cable assemblies are terminated with the classic silver plated Amphenol 831SP PL-259 and UG-175 reducers or BNC Male connectors. DXE-RG400 is specifically recommended for short length cable assembly use in VHF/UHF duplex repeater applications. RG-400 may be the same size as RG-58A/U, but it is an aerospace-level performance cable with dramatically improved ratings in all categories. NOTE: RG-400 is a 0.195 in. diameter cable. RG-400 is NOT related in any way to DXE-400MAX or LMR-400 cables which are 0.405 in. diameter. Order DX Engineering RG-400 High Isolation Coaxial Cable Assemblies here.
( 18 )
$92.99
—
$93.99
ICOM AD-55 R8600 DC Power Supplies
ICOM AD-55 R8600 DC Power Supplies provide the clean, efficient, and QUIET DC power for your ICOM R8600 receiver. These switching power supplies deliver highly-regulated 15 V DC to the receiver. Internal and external filtering limits the switching noise that can interfere with received signals. By paying special attention to power supply design, ICOM engineers ensure that your R8600 receiver may operate to its full design specifications. If you plan to use your R8600 with a transmitter, AD-55 supplies are also designed to resist RFI. For the ultimate in power supply portability for your R8600 receiver, order ICOM AD-55 DC Power Supplies from DX Engineering!
( 4 )
$95.99
DX Engineering TWIG QRP 4:1 Current Baluns
The DXE-TWIG-4-1C QRP Current Balun is designed to be used as the feedpoint of a very low power (QRP) Off Center Fed dipole (OCF) antenna. Ideal for use during outdoor adventures such as POTA® or SOTATM, or any portable operation. The TWIG-4-1C incorporates a 4:1 transformer to convert the OCF antenna impedance of 200-ohms to the desired 50-ohms to match the coaxial cable feedline. It also has a 1:1 feedline choke, to prevent current imbalance, detuning, and to help prevent the addition of unwanted noise. The connector is a BNC female and mates with the recommended coax and most low power (QRP) transceivers. When properly installed and the element wire is properly tuned, you should not need an external tuner. This reduces the need to bring more equipment than is necessary or a portable operation and provides higher efficiency of your output signal and instant band changes. The antenna shown in this manual was designed and tested using the optional 24 AWG wire such as CEW-VIZ24-YEL100 stranded copper, PVC insulated, high visibility yellow antenna wire. The BNC connectors coax cable is recommended to be at least 25 to 35 feet in length. The antenna can be installed in different configurations of wire lengths for various band selections. For example, a very common TWIG QRP OCF for 40, 20, 15 and 10 meters has one 57 ft. dipole wire and the other wire is 12 ft. See the chart in the Instruction Manual linked below for details. This is a low power (QRP) antenna system balun which handles only 25 Watts on SSB, 10 Watts on CW and 5 Watts on digital mode when antenna SWR less than 2:1, without the use of an antenna tuner.
Not Yet Reviewed
$69.99
Rugged Radios Patrol Lapel Microphones
Rugged Radios Patrol lapel microphone kits are specifically developed to provide the best audio performance and durability. With their low-profile microphone and the ear-hugging earbud coil, the Patrol lapel microphone is a discreet and comfortable solution to being on the air all day. The included case provides easy storage to protect your equipment and maintain sanitary conditions. Features include: * Rugged, fiber braided cable * Quick-disconnect radio plug * Comfort-Fit semi-custom earpiece * Noise reflecting microphone * Loud and clear audio speaker
Not Yet Reviewed
$59.99
SOTAbeams LASERBEAM-817 Digital Audio Filter Modules
Building on the success of their range of LASERBEAM Filter Modules, the LASERBEAM-817 Digital Audio Filter Modules are the perfect addition to your FT-817, FT-817ND or FT-818. Unlike analog filters, digital filters provide near-perfect characteristics. Because of the way that the filters are implemented, they are better than analog filters in almost every way. LASERBEAM-817 modules have been designed to specifically complement the FT-817 or FT-818. It has a new filter line-up, optimized gain for this application; revised switching and a filter select LED. These modules greatly improve the performance of the stock ceramic SSB filter. They also have a far superior shape factor when compared to the aftermarket Collins mechanical filters. These filter modules are applicable whether you have extra filters installed or not. LASERBEAM-817 Modules have two superb digital filters: a 300-2700Hz SSB filter and a 450-950Hz (500Hz) CW filter. These filters have been specifically optimized for the FT-817 or FT-818. The filter switching is fully automatic - no external switches are required. Each LASERBEAM-817 module is supplied with a special integration kit which includes the main parts that you will need to complete your installation. Installing your LASERBEAM-817 module LASERBEAM-817 modules are easy to add - no harder than installing an after-market noise reduction unit. Your FT-817 or FT-817 is a great little radio. Why not make it a bit better with LASERBEAM-818 Digital Audio Filter Modules from DX Engineering!
( 2 )
$81.99
West Mountain Radio PWRspkr 15W Amplified Speakers
West Mountain Radio PWRspkr 15W Amplified Speakers are designed specifically for use in noisy environments where standard speakers cannot get enough sound out of a mobile transceiver. You want to be able to hear the mobile radio in any situation. These speakers make the sound loud enough to cover the road and wind noise in any vehicle. If the radio must be heard at a distance while working out of the vehicle, PWRspkr 15W Amplified Speakers will also get that job done. Featuring a 15 watt RMS linear audio amplifier and an active bandpass filter that operates from 300 to 3,200 Hz, PWRspkr 15W Speakers are specifically tailored for enhanced mobile voice communications. PWRspkr 15W Speakers have plenty of gain with a volume control that allows for setting the speaker audio to the appropriate level for any listening situation. Their loudspeakers' sound pressure level (SPL) can typically achieve 102.5 dB at 1 meter before electronic clipping. They require 13.8V DC that is applied through internal RF and DC line filters, and each speaker is supplied with a tilt mounting bracket, a 6 ft. power cable with Powerpole® connectors, a 6 ft. Audio Cable with 3.5mm plugs and an Owner's Manual. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. West Mountain Radio PWRspkr 15W Amplified Speakers are ideal for mobile Amateur Radios, CB radios, commercial two-way radios, emergency radios in ambulances, fire and police vehicles, and for small public address systems. Order yours now from DX Engineering!
( 8 )
$79.95
bhi Ltd Six Way Switch Box
Don't keep disconnecting cables...get a switch box! If you need to connect more than one piece of equipment to your bhi Noise Eliminating Speaker or In-Line Module, the Six Way Switch Box is the answer. It allows up to 6 pieces of equipment to be connected to a noise eliminating speaker, in-line module or extension speaker. The Six Way Switch Box features: * Three inputs loaded at 8 Ohms * Three un-loaded inputs for low level microphone signals * Dimensions (WHD): 4.13 x 1.57 x 2.95 in. (105 x 40 x 75mm) * Supplied with two 4 ft. audio cables with 3.5mm mono plugs Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. You like your DSP stuff. Switch it up! Order a bhi Ltd Six Way Switch Box from DX Engineering and process all that audio!
( 2 )
$55.99