Best Dielectric Duplexer

Mixer Module, 0.1‑500MHz Low Distortion High Frequency Transducer -10dBm Conversion for Base Station for Quadrature Modulation for HF VHF Receiver

  • -10dBm LO Power Consumption: Provides +24dBm third order intercept point, can achieve -10dBm LO power consumption, without high power LO drivers, there are no corresponding shielding and isolation problems, can improve system performance and reduce costs.
  • Single Power Supply: The mixer module is designed to be powered by a single power supply, and the RF, IF and LO ports have DC isolation capacitors for easy use.
  • 10.3dB SSB Noise Figure at 70MHz: With the output amplifier and optimal source impedance of this mixer module, the SSB noise figure is 10.3dB at 70MHz. There is no insertion loss, no external duplexer, and no passive termination.
  • Wide Application: Suitable for applications such as RF‑IF down conversion in HF and VHF receivers, second mixer in base stations, DC baseband conversion, quadrature modulation and demodulation, and Doppler detection in imaging.
  • Low Distortion and Wide Dynamic Range: AD831 is a low distortion, wide dynamic range, single chip mixer, very practical.
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EDSRDUS SG01 Silicone High-Dielectric Grease for Electrical Connectors Valve Waterproof Insulation O-Ring Lubricant 0.35OZ(10g) x6 Pack

  • Silicone high-dielectric and vacuum grease SG01, translucent white, non-toxic, odorless and non-irritating. Safe and environmentally friendly. Compatible with most plastics and rubbers. Waterproof and protects against moisture and oxidation. Excellent lubrication and long-lasting even in wet environments..
  • Protect electrical connections wiring from salt, dirt and corrosion. It will prevent voltage leaks around any electrical connection. For example extend the life of bulb sockets, prevent spark plugs from fusing to boots and improve electrical performance..
  • Dielectric silicone grease can be applied in marine and automotive electrical connection, trailer hitches and battery terminal. Ideal for vacuum systems, garden hoses and seals. Reduce the overall leak rate in vacuum applications by filling the spaces of the gland’s surfaces and lowering permeation rates of the elastomer..
  • Excellent chemical stability and broad temperature resistance -58~392°F / -50~200°C..
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NanoVna SAA-2N VNA Antenna Analyzer,SEESII 50KHz -3GHz Vector Network Analyzer with Bag & Testboard Kit,4 inch LCD,HF VHF UHF Measuring S Parameters Voltage Standing Wave Ratio Smith Chart

  • 【Upgraded NanoVNA SAA-2N V2.2 Version】Not only testing standing wave impedance of the antenna, can also debug the duplexer, the insertion loss of....
  • 【Calibration 】The SAA-2N/NanoVNA_V2.2 does not load the initial calibration data at startup, and does not automatically interpolate the....
  • 【Improved Frequency Range】:transmission Mearsure S21: 70dB(50KHz-1.5GHz), 60dB(1.5GHz-3GHz). Reflection Measure S11: -50dB(50KHz-1.5GHz),....
  • 【 Improved Performance】High stability, high sensitivity, high precision, improved performance.Made of high-quality aluminum protective case,....
  • 【What You Can Get】1x NanoVNA SAA-2N VNA, 1x Micro USB Data Cable,2x 500mm N-type Male to Male RG142-PUR RF Cable,1x N-type Male Calibration....
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Retevis RT97 Professional Radio Relay Station,Full Duplex Customizable Base Station,16CH Solid Analog Radio Relay for Family Use(1 Pack)

  • Small and compact design of retevis mobile radio relay is easy to carry to increase the transmission distance of walkie talkie.
  • solid and dust proof radios repeater for longer use life without wasting your money.
  • High power mobile radio relay with the matching power adapter can work under DC 12V 24V power or car power.
  • mobile base station can be operated flexibly as fixed or mobile.
  • The built-in duplexer can receive and transmit signals at the same time.
  • you just need to match one antenna to transfer the signal of the walkie talkies.
  • this package does not include an antenna.
  • The frequency and offset can be customized according to your needs.
  • it can be used both for camping outdoor use and for establishing signal base stations in remote areas.
  • Mobile radios transceiver with LCD screen support selecting functions icons display including channel information.
  • Frequency for greater penetration and wide transmission range.
  • ensure long distance and smooth communication between the two way radio.
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Retevis RT97 GMRS Mobile Base Station,Full Duplex Portable Radio Relay Station with LCD Screen,High Power Mini Compact Base Station for Camping(1 Pack)

  • The radio relay is GMRS frequency, please tell us before if you need customized frequency version.
  • The RT97 GMRS portable radio is easy to carry and support multiple power options.
  • wide signal coverage and strong penetration.
  • mobile base station can be operated flexibly as fixed or mobile.
  • The built-in duplexer can receive and transmit signals at the same time.
  • you just need to match one antenna to transfer the signal of the walkie talkies.
  • this package does not include an antenna.
  • 8 of them are default GMRS channels that have been set.
  • Radio repeater power divider with LCD screen supports icon display of selected functions.
  • The compact and rugged radio repeater is drop-resistant and not easily damaged.
  • has a longer service life and has high reliability and low power consumption.
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High Frequency Transducer, Mixer Module 0.1‑500MHz Bandwidth Mixing for HF VHF Receiver for Quadrature Modulation for Base Station

  • -10dBm LO Power Consumption: Provides +24dBm third order intercept point, can achieve -10dBm LO power consumption, without high power LO drivers, there are no corresponding shielding and isolation problems, can improve system performance and reduce costs.
  • 10.3dB SSB Noise Figure at 70MHz: With the output amplifier and optimal source impedance of this mixer module, the SSB noise figure is 10.3dB at 70MHz. There is no insertion loss, no external duplexer, and no passive termination.
  • Single Power Supply: The mixer module is designed to be powered by a single power supply, and the RF, IF and LO ports have DC isolation capacitors for easy use.
  • Wide Application: Suitable for applications such as RF‑IF down conversion in HF and VHF receivers, second mixer in base stations, DC baseband conversion, quadrature modulation and demodulation, and Doppler shift detection in imaging.
  • Low Distortion and Wide Dynamic Range: AD831 is a low distortion, wide dynamic range, single chip mixer, very practical.
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Mixer Module, Bandwidth Mixing 0.1‑500MHz High Frequency Transducer -10dBm for Quadrature Modulation for Base Station for HF VHF Receiver

  • Single Power Supply: The mixer module is designed to be powered by a single power supply, and the RF, IF and LO ports have DC isolation capacitors for easy use.
  • 10.3dB SSB Noise Figure at 70MHz: With the output amplifier and optimal source impedance of this mixer module, the SSB noise figure is 10.3dB at 70MHz. There is no insertion loss, no external duplexer, and no passive termination.
  • Low Distortion and Wide Dynamic Range: AD831 is a low distortion, wide dynamic range, single chip mixer, very practical.
  • -10dBm LO Power Consumption: Provides +24dBm third order intercept point, can achieve -10dBm LO power consumption, without high power LO drivers, there are no corresponding shielding and isolation problems, can improve system performance and reduce costs.
  • Wide Application: Suitable for applications such as RF‑IF down conversion in HF and VHF receivers, second mixer in base stations, DC baseband conversion, quadrature modulation and demodulation, and Doppler shift detection in imaging.
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MPD Digital Made in The USA RG-213 - Non Contaminating UL Listed Coaxial Cable with USA Made UHF PL-259 Male Connectors for HF VHF UHF Ham and CB Radio Antenna Cable 12 ft

  • Super Flexible .405 inch diameter RG8U Coaxial Cable exceeding all US, NATO and IDF MIL-C-17 Standards - Made in the U.S.A..
  • 60 DAY RETURNS - plus a 1 YEAR EXCHANGE for defects on All MPD Digital Cable Assemblies - 5 Year Warranty on Connectors - 10 Year Warranty on Cable Jacket.
  • This cable has a Non Contaminating PVC Jacket, 95% Shield using Pure Copper Braid, Low Density PE Dielectric and Braided Pure Copper Center - making it the most Flexible and versatile of all the larger HF-VHF Low Loss cables..
  • MADE IN THE U.S.A. by FCC Licensed Ham Radio Operators - Swept with Bird SiteHawk SK-4000 to assure VSWR less than 1:1.35.
  • Velocity of Propagation: 66 % nom. / Dielectric Strength:10000 V minute / Corona extinction: 5 kV / Voltage Rating:3700 V Max. / Max Operating Temperature: +70 °C - Min. Operating Temperature: -20 °C.
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Astromania 2' SCT 90-Degree Mirror Diagonal with 93% reflectivity Across Visible Spectrum - fits Rear Cells of Schmidt-Cassegrain telescopes and Includes an Adapter to use with Refractor telescopes

  • It fits all rear cells of Schmidt-Cassegrain telescopes and includes an adapter to use with refractor telescopes..
  • The 2" SCT diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images..
  • Allows you to take advantage of the wider field of view provided by two inch eyepieces. Dielectric coatings are more durable than regular or enhanced aluminum coatings, so you will enjoy years of excellent performance from this product..
  • The SCT Adapter has a standard SCT female thread (2", 24 TPI),you can use your refractor diagonal with all telescopes having a standard SCT thread for which you can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes..
  • Associated with 90°mirror diagonals, which let you view objects that are at a 90°angle from the direction the telescope is pointing.Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection..
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Celestron – TrailSeeker 8x32 Binoculars – Fully Multi-Coated Optics – Binoculars for Adults – Phase and Dielectric Coated BaK-4 Prisms – Waterproof & Fogproof – Rubber Armored – 6.5 Feet Close Focus

  • BaK-4 PRISMS WITH PHASE AND DIELECTRIC COATINGS: This premium-quality binocular features BaK-4 Prisms with Phase and Dielectric Coatings, which allow for increased light transmission through the prism system for brighter and sharper images with enhanced contrast and resolution. All other optical surfaces are fully multi-coated with anti-reflective coatings to enhance image detail even more.
  • DURABLE, LIGHTWEIGHT BODY: The TrailSeeker Binocular has a durable magnesium alloy frame that is light in weight and fully waterproof for use in any weather conditions. It is ergonomically designed to ensure easy handling during use in the field, making it a great bird watching binoculars for adults.
  • WIDE FIELD OF VIEW: The Celestron TrailSeeker binocular features 8x magnification and a wide field, so you can follow your subject more easily with less need to move the binoculars. Angular Field of View 7.87 Degrees.
  • METAL MULTI-STOP TWIST UP EYECUPS: Metal eyecups are sturdy, durable, and offer a longer lifespan than plastic eyecups. They also feature a multi-stop function for correct positioning of the eyes with or without eyeglasses.
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