In my favorite dumpster, I got yesterday a ENI 325LA RF power amplifier.
Characteristics :
- 50 Db
- 250khz - 150 Mhz
- 25 w
I powered it and it seems to work, but if I input a square wave, it get pretty much distorted :
In the attached pics,
the ch1 ( yellow) is the input signal, and the ch2 (blue) is the output signal from the ENI 325LA.
Note that I had only a usual 50 ohm terminal plug, so I did not push the power very far, and stayed below 1 w.
For Sine wave, there is no problem, and the amplification seems quite OK.
I checked the power supply, but it seems to be well in par with the manual
(25.62 V 26.52V) with not much noise (see the pics).
I have thus several questions :
- Is the behavior of this RF amplifier normal ? They claim a flat response in the
250khz - 150 Mhz range. I would expecte that the (nearly) square wave should be conserved.
- How to fix it ?
Besides the power supply, I do not know much on these RF amplifiers.
Thanks for any hint.