Reviews General Radio Oscillator

SparkFun Pro RF - LoRa, 915MHz (SAMD21) - Wireless Board Easy-to-use IoT Qwiic Enabled microcontroller 915MHz ISM Band Reinforced Micro-B USB Connector Included u.FL Antenna Connector

  • A LoRa-enabled wireless board that marries a SAMD21 and a long-range RFM95W to make a compact and easy-to-use IoT board. Compatible with Arduino..
  • A short (3 inch) wire antenna is sufficient for "short" distances (up to 1 mile line-of-sight), but we've also included a u.FL antenna connector for potentially longer distances..
  • SAMD21G18A, Cortex M0+, 256KB Flash Memory, 32MHz External Oscillator, 4 Digital and 5 Analog IO Pins with exclusive GND pins.
  • Hope RFM95W LoRa modem, Point to Point Radio capabilities, LoRa Enabled, Frequency range: 915 MHz, Spread factor: 6-12, Range up to 1 mile line of sight, U.FL Antenna.
  • LiPo Battery Charger, 500mA Charge Rate. Qwiic Enabled. Power LED disconnect jumper for low power applications. PTH pins for software debug (SWD).
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Ultralast - 3-1/2AAD-B 3.6 Volts Nickel Cadmium (NICD) Battery

  • Bell South N.E. - TL6144, Empire - CPB-400, Energizer - P7305, General Electric - 5-2244, General Electric - BT-17, Radio Shack - 23-170, Saft - STB110, Uniden - BA-300, Uniden - BA-300A.
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Tennis Tutor Prolite - Tennis Tutor is The #1 Selling Tennis Machine Brand Worldwide.

  • FEATURES - Speeds from 10-60 MPH. Ball Feed Rate adjustable from every 1-1/2 to 10 seconds. Shoots groundstrokes to lobs. Only 12 inches high and....
  • RANDOM OSCILLATOR - delivers shots randomly across the court for hitting on the run.
  • RECHARGEABLE BATTERY – Built-in battery provides up to three hours of playing time per charge. Includes Smart Battery Charger that fully charges the....
  • OPTION (not included): Wireless Remote Control - Starts and stops ball delivery, and controls oscillator. SEE CHART BELOW FOR MORE MODELS..
  • THREE YEAR WARRANTY - longest for any tennis machine. MADE IN U.S.A. Manufactured and sold by Sports Tutor, #1 tennis machine manufacturer in the U.S.....
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Tecsun H501 Digital Worldband AM/FM Shortwave Longwave Radio with SSB Reception, Dual Speakers, & MP3 Player, Matte Black

  • 【HF VFO /RF Generator 】It has 10kHz to 220MHz working ranges. 0.5PPM high precise Tcxo clock, the frequency is more accurate. Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz..
  • 【VFO for Ham SDR HAM QRP Transceiver】 Used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers) ， a simple RF/clock generator for calibration reference or clock generation，a common 128x64 I2C OLED SSD1306 display and Si5351 module..
  • 【Adjustable】Intermediate frequency (IF) offset (+ or -) is adjustable.The bar graph of the signal meter through the analogs input (ADC).I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation.
  • 【20 Band Presets】Equipped with generator function mode.Initial frequency, end frequency, sweep-frequency-step can be set. 20 band presets (shortcuts) for BCB and HAM frequencies.RX/TX mode selector for Homebrew QRP transceivers..
  • 【 Guarantee】 We providing 100% satisfactory service to every customer to make sure our customer can purchase with confidence. If you have any questions, please contact us, we will reply and improve in time..
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Teenage Mutant Ninja Turtles Rippin' Rider

  • Side-mounted anti-Kraang Cannons fire missiles with just a flick of the finger!.
  • Vehicle also features mutant-strength mudguard, mean green high beam, ooze oscillator and all-terrain Turtletech treads!.
  • Look for the Sewer Spinnin’ Skateboard and other awesome vehicles!.
  • 2013 Viacom International Inc. All Rights Reserved. TEENAGE MUTANT NINJA TURTLES and all related titles, logos and characters are trademarks of Viacom International Inc..
  • Side-mounted anti-Kraang Cannons fire missiles with just a flick of the finger.
  • Vehicle also features mutant-strength mudguard, mean green high beam, ooze oscillator and all-terrain Turtletech treads.
  • Look for the Sewer Spinnin’ Skateboard and other awesome vehicles.
  • Compatible with most Turtle Figures (figures sold separately).
  • Teenage Mutant Ninja Turtles and all related titles, logos and characters are trademarks of Viacom International Inc.
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RTL‑SDR R820T2 V3 RTL2832U Software Defined Radio Smart HF Bundle Antenna for Computer Based Radio Scanner 480 kHz to 1.87 GHz

  • Wide Use: The tuner set is suitable for general radio scanning, air traffic control, public safety, ADS‑B aircraft radar, maritime AIS, ACARS, relay radio, P25 MotoTRBO digital voice, POCSAG, weather balloon, APRS, NOAA APT Meteor M2 Weather satellites, radio astronomy, etc..
  • Application: The tuner is suitable for use as a computer based radio scanner, such as SDR#, HDSDR, SDR Radio, GQRX or SDR Touch on for Android.
  • Computer Application: This tuner set is suitable for computers for Windows, for OSX, for Linux, for Android, etc..
  • Antenna is Easy to Install: This antenna is easy to install and is an excellent antenna replacement part for broken TVs and FM radios..
  • Antenna Base: The antenna base has a stable signal and better receiving effect, which only needs to be tightened or inserted into for installation..
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Electro Faustus Blackfly Modular Spring Activated Instrument Eurorack Module

  • DS3231 16-pin memory chips - AT24C32 ,extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal..
  • Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line..
  • Provides two configurable alarm clock and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bidirectional bus..
  • Highly accurate RTC completely manages all timekeeping functions.The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping..
  • A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output. In addition, RST pin is monitored as generating a μP reset..
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Natruss Software Defined Radio with Telescopic Antenna Base RTL-SDR R820T2 V3 RTL2832U

  • With RTL2832U ADC chip, R820T2 tuner, 1PPM TCXO, SMA F connector and aluminum case with passive cooling.
  • Tuning from 500 kHz to 1.7 GHz up to 3.2MHz (stable to 2.4 MHz) (HF works in direct sampling mode).
  • Ideal for using as a computer-based radio scanner with free software such as SDR#, HDSDR, SDR-Radio, GQRX or SDR Touch on for Android.
  • Suitable for Windows, for OSX, for Linux, for Android and for Raspberry Pi.
  • Ideal for many applications including general radio scanning, air traffic control, public safety, etc..
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JUNSHUNTONG HF VFO for Ham SDR QRP Transceiver,20K-220MHz RF Generator Superheterodyne Receiver Debugger,Tcxo Clock,S-Meter, 20 Band presets

  • 【HF VFO /RF Generator 】It has 10kHz to 220MHz working ranges. 0.5PPM high precise Tcxo clock, the frequency is more accurate. Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz..
  • 【VFO for Ham SDR HAM QRP Transceiver】 Used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers) ， a simple RF/clock generator for calibration reference or clock generation，a common 128x64 I2C OLED SSD1306 display and Si5351 module..
  • 【Adjustable】Intermediate frequency (IF) offset (+ or -) is adjustable.The bar graph of the signal meter through the analogs input (ADC).I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation.
  • 【20 Band Presets】Equipped with generator function mode.Initial frequency, end frequency, sweep-frequency-step can be set. 20 band presets (shortcuts) for BCB and HAM frequencies.RX/TX mode selector for Homebrew QRP transceivers..
  • 【 Guarantee】 We providing 100% satisfactory service to every customer to make sure our customer can purchase with confidence. If you have any questions, please contact us, we will reply and improve in time..
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