[Hackrf-dev] LNA4ALL

[Ulf Bertilsson]

blew my rf amp on my board, so I used that to compansate.

As with all lna it increase noice, substainable to overload etc.

I found hackrf very weak even when rf amp was ok.

Also used it on the tx path for gps jam/forge etc.

Sendt fra min iPhone

> Den 1. feb. 2017 kl. 11.50 skrev Marc Pàmies Massip <mpamies247 at gmail.com>:
> 
> Dear all,
> 
> I wanted to ask if it is worth using an external LNA (specifically an LNA4ALL) to improve the reception performance of the HackRF-One. I know it is a basic part of any radio communications systems, but I don't get why it could be necessary if the HackRF already incorporates an internal LNA. Does the use of an extra LNA has any drawback that I might consider? It would improve the reception of weak signals?
> 
> Wouldn't it make more sense to add a preselector filter instead, as those are missing in this device? 
> 
> Thanks in advance,
> 
> Marc.
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