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Reviews (2)

21 December 2017
Will Do the Job
2 of 2 found this helpful The preamp is easy to install. Comes with 2 nylon zip ties. But most nylon ties break down when exposed to UV rays. Tape over the ties after installation. It is powered by a 5 volt DC power inserter. Most other preamps use 12-15 volts DC to power up. So if yov have a central power system to power, you have to add on a 5volt now. I measure 13db of gain at 200MHz @6Mhz bandwidth. The unit says 20 db is nominal (which may be true at single frequency). The unit is not watertight. But built weather resistant. There is a 'weep hole' to drain any moisture built up in the case. I don't know if this is a going to be a problem or not. I didn't disassemble to see if the PC board has any 'Conformal Coating" on it to prevent water from affecting operation. I hope. In my area I have 5 stations that are from 76MHz to 510Mhz. It is made in USA. Around 40$ is the lowest price I've come across.

16 May 2020
Not a good design.
All of the waveforms are distorted from about 1000 Hz and above. And the amplitude starts to drop off as the frequency rises. Its not a real DDS generated waveform. It just a D to A approximation from a CPU.So as an audio generator its not practical.There are analog generators that are better and cheaper. But usually they don't have a digital readout.