HF
High Frequency operating at 3–30 MHz.
-
product
Autotuners
HF-AUTO
The Palstar HF-AUTO 1800 watt automatic antenna tuner covers 160 to 6 Meters with a power rating of up to 1800 watts PEP. Hams have enjoyed the benefits of low power auto-tuners for years, but now Palstar takes it to the next level and offers auto-tuning with a power rating of 5 Watts to 1800 watts.
-
product
Hybrid Raman/Er-doped Fiber Amplifier
HFA5000
Hangzhou Huatai Optic Tech. Co., Ltd.
1. Erbium-doped Fiber Amplifier, due to multiple cascades and the accumulation of noise caused by spontaneous emission, will reduce the system CNR greatly and thus it will limit the transmission capacity and distance of the system. Raman Fiber Amplifier (RFA) is a newly designed fiber amplifier based on Stimulated Raman Scattering (SRS) effect. It is considered as the core technology of new generation DWDM fiber over-long communication. Compared with Erbium-Doped Fiber Amplifier, Raman amplifier has the advantage of low Noise Figure (NF), wider gain bandwidth, flexible gain spectral region and stable temperature. It is the only device that can operate in 1300~1600nm.
