Reviews Dual Channel Frequency Counter

Siglent Technologies SDG2042X Arbitrary Waveform Function-Generators, 40 MHz, Grey

【Supported Protocols】Serial Peripheral Interface, IIC, UART, SMBus, I2S, CAN, Parallel, Custom, Search, Async, 1-Wite, PS / 2.
【Multi Purpose】8-channel logic analyzer, Data Logger. PWM controller, Frequency generator. Frequency meter, Remote controller.
【Dual Channel】Dual channel voltmeter, Mixed signal oscilloscopes and logic analyzer, Dual input oscilloscope (single, 16Msps, 3MHz bandwidth).
【Frequency Meter】PWM controller, Frequency generator. Frequency meter, Remote controller.
【100% Guarantee】High quality product, we promise to do everything possible to satisfy all customers. However, if you are not 100% satisfied with our service or our products, simply contact us. We are always at the side of our customers to support and continuously seek new ways to improve.

Portable Design: The walkie talkie is small and light, gray body, simple and atmospheric, suitable for adults, can be used in various restaurants, shopping malls, security and other ..
Dual PTT: PTT 1 transmits the A segment frequency, and PTT 2 transmits the B segment frequency. Narrowband broadband selectable..
Multi Information Display: With a 1.4 inch screen, it can clearly display the channel number, frequency, channel frequency, channel name, etc..
Multifunctional: Battery voltage display, keypad lock and unlock, dual frequency, voice delay, FM radio, scan, PTT ID function..
Frequency Range: UHF 400‑520MHz, VHF 136‑174MHZ, aviation frequency band 108‑136MHz. 10W 5W high and low power settings..

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.

...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....