... 862MHz Product descriptionHuatai HT8500T, top type externally modulated optic transmitter with it's high index, high reliability and excellent cost ... , no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 40~862MHz, used in the over-long ... , users can adjust and set the wavelength on the front panel with ±0.05nm stepping in the range of ±200GHz (±1 ...