Best Dual Channel Frequency Counter

The Daughters of Temperance Hobbs: A Novel

  • Multiple step dimmer button on front panel..
  • Digital echo w/ dual front-mounted controls..
  • Advanced NB/ANL for reduced interference.
  • Automatic AWI (Antenna Warning Indicator) alerts if SWRs are too high..
  • Front microphone connector for easy mounting in tight spaces.
  • Frequency Counter Jack pre-wired for FC-390 style counters..
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DDARKHORSE TX12 Karaoke Pre-Effects KTV Professional Digital Audio Echo Effect Processor DSP Audio Processor with Bluetooth USB (TX12-110V)

  • Professional pre-amplifier adopts dual-mode reverb processing, which makes the vocal effect more abundant, natural and transparent. It is a high-fidelity smooth natural sweet style stereo dual reverb and multi-purpose karaoke effect. The output has front (rear) left and right channels, center channel, and subwoof frequency channel. And it is very simple and convenient to use like karaoke amplifier..
  • High-grade aluminum alloy panel is transported, 1U ultra-thin design, using karaoke adjustment to make debugging more convenient and easy.
  • This machine has Bluetooth audio input, optical fiber input, USB input.
  • LED display screen, four sets of output with spectrum jump..
  • The microphone is equipped with 6-band parameter equalization adjustment, the adjustment range is wider, the sound is more delicate and soft, and the original tone is not damaged, the single-band sound quality effect is improved, and the howling frequency is effectively processed..
  • Subwoof channel output design with crossover point and adjustable output gain.
  • Subwoof channel has a perfect anti-low-frequency self-excitation circuit, when entering the MIC, the low-frequency signal output port is automatically attenuated by half to prevent low-frequency howling and damage to the device.
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Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer+3 Way Mono Crossover

  • ...z effective equalization range. Constant Q filters. Selectable 6dB or 12dB cut or boost range.
  • Output level LEDs (-10 to +17 dB). Bypass switch with status LED. Ground lift switch. Balanced XLR input/output. Subwoofer out. Channels: 2 (stereo). Connectors: XLR balanced inputs and outputs. Bands: 31 per channel. Frequency Centers: 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.5 kHz, 2 kHz, 2.5 kHz, 3.15 kHz, 4 kHz, 5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz, 20 kHz.
  • Control Range: Selectable +/-12dB 0r +/-6dB. Input Impedance: 50k ohms. Output Impedance: 600 ohms. Maximum Output Level: +21dB. Level Control: +/- 10 dB. Signal to Noise: >93 dB. Distortion: 0.005%. Roll-off filters: 18dB/octave, Butterworth. Power Consumption: 15 watts. Weight Unpacked: 7.00 lbs. Weight Packed: 9 lbs. Width Packed: 5.87". Height Packed: 20. 5". Depth Packed: 9.62". Features of RX230: RockvilIe RX230 2-way Stereo / 3-way Mono rack mountable crossover.
  • Ability to mix 2 channels output. 24dB/Octave filters. Mute switches. Channel Gain Control: 0 to +12 dB. Low Frequency Level Control: -to +6 dB. High Frequency Level Control: -to +6 dB. Low Frequency to High Frequen....
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General Lee 10 Meter Professional Amatuer Radio Tranceiver, NEW!!

  • Multiple step dimmer button on front panel..
  • Digital echo w/ dual front-mounted controls..
  • Advanced NB/ANL for reduced interference.
  • Automatic AWI (Antenna Warning Indicator) alerts if SWRs are too high..
  • Front microphone connector for easy mounting in tight spaces.
  • Frequency Counter Jack pre-wired for FC-390 style counters..
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RockvilIe RWM3300UA Dual HandHeld Microphones For Church Sound Systems

  • ... and interference, Individual microphone volume control, Comfortable ergonomic composite microphone construction, Low power consumption for longer battery life, Ultra signal stability minimizes audio artifacts.
  • OSA technology: Locates, prioritizes, and selects the clearest frequency for the best sound quality, The display on the mic and the receiver show the battery life, Operating Range: 200´-260´(indoor), 160´-220´(outdoor), Channel: 200 Channel selection, Frequency Range: 500MHz-599MHz, Frequency Stability: ±0.005%.
  • , Frequency Response: 40Hz-15KHz(±3 dB), Dynamic Range: 110dB, S/N: 90dB, T.H.D: < 0.1%(1KHz), Audio Output Jack: (Ch1/Ch2) XLR balanced + 1/4" mixed, Power Voltage: AC110V-240V 50/60Hz, Operating Temperature: 14°F-122°F, Mic Battery Operating Time: up to 8 hours.
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Rockville RWM-4US Quad Wireless UHF 4 Microphone System w/Adjustable Frequency

  • Rockville RWM-4US Quad Wireless UHF 4 Microphone System w/Adjustable Frequency. 20 Adjustable Unique Frequencies on each microphone ensures interference free operation. Easy frequency switching by simply hitting the button on the microphone. (4) Metal handheld microphones with digital display. Professional 19 metal rack mount receiver with LCD display. Illuminated rotary knobs..
  • One button frequency switching allows you to hit the button on any of the 4 microphones and the channel will change on that microphone and auto-sync with the receiver. The display on the microphone shows channel, frequency, battery life. The display on the receiver shows RF signal strength, AF signal strength, frequency channel, battery life of each handheld mic. Operating Range: 300 400(indoor), 250 350(outdoor)..
  • Each mic uses different channel groups so that you will not get interference from one microphone to the other (There are 80 total different channels on this system 20 unique frequencies per mic). Ergonomic metal microphones are extremely high quality and have a nice weight and feel to it. Individual XLR outputs for each microphone to send each microphone to their own mixer channel. XLR and mix output to send all 4 mics to one mixer channel..
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Rockville RWM1202VH VHF Wireless Dual HandHeld Microphone System/Metal Receiver

  • ...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..
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Retevis RA25 Dual Band Mobile Radio, Long Range Mini Mobile Car Transceiver, 500 Channels DTMF LCD Display, 2m 70cm Mobile Two Way Radio Mobile Car Radio for Vehicle Truck Traveling(1 Pack)

  • different contacts can use a certain frequency band independently.
  • Use with antenna to get long range calls.
  • select the same frequency band to be contacted and set the same CTCSS/DCS code.
  • Switch between main channel and sub channel.
  • can quickly switch the channel through microphone key or front panel.
  • there is function prompt on the microphone button.
  • quickly enter the function list through a combination of button operations.
  • pick up and press the PTT button to speak and send a message.
  • the button can adjust the settings at any time.
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Pyle-Pro PDWM2550 19'' Rack Mount Dual VHF Wireless Rechargeable Handheld Microphone System

  • Professional VHF 2 Channel Wireless System - 2 Handheld Microphones Included - Dual Telescoping Receiver Antennas - Dual Volume Controls with Digital Readout - Dual Charging System - 1/4'' Individual line outputs & Mixed 1/4'' Outputs.
  • On/Off Broadcasting Switch - Dynamic Range: 100dB.
  • Signal to Noise Ratio: 105dB - Receiver Power Supply: AC 110/240V - Microphone Power Source: 8. 4 Volt Rechargeable.
  • Receiver Dimensions: 1. 8'' X 18. 9'' X 1. 3'' - Microphone Dimensions: 9. 6'' X . 7" X 0. 5''.
  • Professional VHF 2 Channel Wireless System - 2 Handheld Microphones Included - Dual Telescoping Receiver Antennas.
  • Dual Volume Controls with Digital Readout - Dual Charging System - 1/4" Individual line outputs & Mixed 1/4" Outputs.
  • Frequency Response: 40Hz~18 kHz - Operation Range: 50-180 Meters.
  • Signal to Noise Ratio: 105dB - Receiver Power Supply: AC 110/240V - Microphone Power Source: 8.4 Volt Rechargeable.
  • On/Off Broadcasting Switch - Carrier Frequency: 210-270Mhz - Dynamic Range: 100dB.
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