Reviews Frequency Crystal

Timer and Photogates

Self-Contained – Standalone data collection unit that does not need a computer.
5 Timing Modes – stopwatch, interval, frequency, period, and count mode.
Accurate Measurements - Precision quartz crystal timer is accurate to within 0.0001 seconds and frequency measurements to 0.1 Hertz.
Easily Repositioned – Equipped with handy thumbscrews that are easy to connect.
Customer oriented service - all products are provided with teachers in mind, we will provide swift customer service if anything is needed.

Body Size: 11 x 4.65 x 3.6mm / 0.43" x 0.18" x 0.14" (L*W*H).
DIP Quartz Crystal Oscillators for RISC & CISC Microcontrollers.
Widely used in TV, electronics, PC cards, electronical meter, DVD, MP3, MP4, etc.

CURV cone technology for greater sound definition and higher output with increased protection from marine conditions.
Silk dome tweeter provides a smooth upper frequency response and increased efficiency for crystal-clear music reproduction.
Fully sealed crossover components provide full protection from the harsh marine environment and improved frequency response, for a detailed audio spectrum.
Perforated metal grilles for a timeless, elegantly styled finish to blend with the aesthetics of your boat.

Body Size: 2 x 6mm / 0.08" x 0.24" (D*L).
DIP Quartz Crystal Oscillators for RISC & CISC Microcontrollers.
Widely used in TV, electronics, PC cards, electronical meter, DVD, MP3, MP4, etc.

Body Size: 11 x 4.65 x 3.6mm / 0.43" x 0.18" x 0.14" (L*W*H).
DIP Quartz Crystal Oscillators for RISC & CISC Microcontrollers.
Widely used in TV, electronics, PC cards, electronical meter, DVD, MP3, MP4, etc.

WIRELESS FREQUENCY BAND SELECtION: Before purchasing, please ensure that the wireless frequency band you select works in your area (refer to Shure website for details > search Shure Wireless Frequency Finder)..
WHAT'S IN THE BOX: (2) SLXD2 handheld transmitter with legendary SM58 cardioid dynamic microphone capsules and (1) SLXD4D dual-channel receiver, with antenna and rackmount accessories, (2) zippered bag and (4) AA batteries.
DIGITAL WIRELESS TECHNOLOGY: Digital predictive switching diversity. 44 MHz tuning bandwidth (region dependent). 32 available channels per frequency band (region dependent). Up to 10 compatible systems per 6MHz TV band.
12 systems per 8 MHz band. RF Scan and IR Sync to quickly find an open frequency and link the transmitter to a SLX-D receiver. Easy pairing of transmitters and receivers over IR scan and sync..
BATTERY LIFE: Up to 8 hours from 2 AA batteries. Upgrade to the optional Shure SB903 Lithium-ion rechargeable battery to monitor battery charge status in hours and minutes, as well as battery life and health statistics..

...held mics at once. Individual microphone volume controls. Rugged metal housing. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life..
System: Operating Range: 100´-200´(indoor), 65´-165´(outdoor). Channel: Two Channel. Frequency Range: 170MHz - 260MHz. Frequency Response: 80MHz-12000MHz. Frequency Width: 32Mhz. Dynamic Range: 110dB. Operating Temp: 14°F – 122°F. Oscillation Mode: Quartz Crystal. Frequency Stability: ±0.005%. Modulation Mode: VHF.Frequency Response: 80Hz – 8 KHz (±3 dB). Harmonic Radiation :< 63dBm. S/N: 60dB. RF Output Power: 10mW. Power Voltage: AC110V/ 220V - 50/60Hz..
Mic Battery: AA x 2. Receiver:. Sensitivity: (S/N=30dB) >2mV. De-Emphasis: 50µS. Audio Output Impedance: 600Ω. Audio Output Level.: 0-0.5V. Power Supply: AC110V /220V 50/60Hz. Current Consumption: ≤50mA. Audio Out Connector: 1/4˝ unbalanced. Transmitter:. Frequency Stability: ±0.005%. RF Output Power: ≤30mW. Modulation Mode: VHF. Maximum Deviation Range: ±50KHz. Microphone Mode: Fixed. Pre-Emphasis: 50µS. Power Supply: AA/1.5V×2. Current Consumption: ≤35mA..

WIRELESS FREQUENCY BAND SELECtION: Before purchasing, please ensure that the wireless frequency band you select works in your area (refer to Shure website for details > search Shure Wireless Frequency Finder)..
WHAT'S IN THE BOX: (2) SLXD2 handheld transmitter with Beta 58A cardioid dynamic microphone capsules and (1) SLXD4D dual-channel receiver, with antenna and rackmount accessories, (2) zippered bag and (4) AA batteries.
DIGITAL WIRELESS TECHNOLOGY: Digital predictive switching diversity. 44 MHz tuning bandwidth (region dependent). 32 available channels per frequency band (region dependent). Up to 10 compatible systems per 6MHz TV band.
12 systems per 8 MHz band. RF Scan and IR Sync to quickly find an open frequency and link the transmitter to a SLX-D receiver. Easy pairing of transmitters and receivers over IR scan and sync..
BATTERY LIFE: Up to 8 hours from 2 AA batteries. Upgrade to the optional Shure SB903 Lithium-ion rechargeable battery to monitor battery charge status in hours and minutes, as well as battery life and health statistics..