Re: Nooelec bare bottom LNAs faulty connection
The connector marked "Input" goes to the antenna, the connector marked "Output" goes to your dongle/receiver - the DC power feed is also on the "Output" side. When the DC feed is connected a small green led (next to the output connector) should light indicating power is reaching the LNA.
If you connected them incorrectly you have applied DC power to the input of the LNA, this may have damaged them.
I don't know how the Airspy bias tee works but on a V3 dongle the bias tee has to be switched on (or off) when any software is not using the dongle (ie close the software before switching the bias tee)
Sorry, can't help in repairing them, I suspect if they are damaged them throw them away - but test them first with the correct connections :)
On 03/03/2019 at 17:18, Roland Fechter <fly-fechter@...> wrote: