[Hackrf-dev] LNA / Power Amplifier question.

[Stefan Wagener]

Thanks,

SDR receiver noise figures seem to be in the 3 to 4db figure for VHF/UHF.
So you don't want to add too much more to that.

Stefan

On Sun, Nov 9, 2014 at 9:03 PM, Ariel Diaz <
adiaz133 at mail.valenciacollege.edu> wrote:

>  Thank you for your prompt reply. I couldn't find anything about the NF
> on the hackrf but isn't it close to that figure? Or perhaps too far from it?
>
>
>  Thanks,
>
> AD
>  ------------------------------
> *From:* Stefan Wagener <wageners at gmail.com>
> *Sent:* Sunday, November 9, 2014 5:17 AM
> *To:* Ariel Diaz
> *Cc:* hackrf-dev at greatscottgadgets.com
> *Subject:* Re: [Hackrf-dev] LNA / Power Amplifier question.
>
>  Well,
>
>  According to the specs it will give you more than 25db in gain. What is
> not so good (actually pretty bad) is the noise figure with 6db. Good
> preamps in VHF/UHF should have less than 1db noise added to the signal.
>
>  my 2 cents,
>
>  Stefan
>
> On Sun, Nov 9, 2014 at 6:53 AM, Ariel Diaz <
> adiaz133 at mail.valenciacollege.edu> wrote:
>
>>  Hello all,
>>
>>  While looking for a low noise amplifier for receiving, I got mixed up
>> with the model numbers from mini-circuits and ended up getting what I
>> thought it was a good deal on some amplifiers ZHL-1042J+
>> <http://www.minicircuits.com/pdfs/ZHL-1042J.pdf>. Anyways, question
>> would be, will this amplifier provide any gain on the Rx signal(since I
>> already have it in hand) not interested in Tx. Or should I sell this and
>> buy something else. Any input will be greatly appreciated.
>>
>> _______________________________________________
>> HackRF-dev mailing list
>> HackRF-dev at greatscottgadgets.com
>> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist9.pair.net/pipermail/hackrf-dev/attachments/20141110/d70e9692/attachment.html>