[Hackrf-dev] Max TX power

Mitja kocjančič veso266 at gmail.com
Thu May 31 14:19:56 EDT 2018


can someone recomend a chep 1 to 100watts amp and filter (preferebly all in
one) for FM Broadcast Band (also covering 64 to 76Mhz)

2018-05-31 17:23 GMT+02:00 Chuck McManis <chuck.mcmanis at gmail.com>:

> Have you considered a separate power amplifier ? While the HackRF can
> transmit a few milliwatts of power if you're actually going to use it to
> transmit something "for real" (rather than just use it for experiments) you
> might consider getting a filter for the band of interest and a separate
> power amplifier. That does two things for you, first it prevents the
> transmissions of spurious signals (harmonics, overtones, etc) that arise
> from the nature of how the signal is created. Second it lets you accurately
> control the effective radiated power of your antenna and power amplifier
> set up and stay within any transmission restrictions for the spectrum on
> which you are transmitting. As a bonus it protects the output stage of your
> HackRF from reflected transmission signals coming from mismatched
> transmission lines.
>
> On Thu, May 31, 2018 at 1:35 AM, Matteo Terzi <matteo.terzi97 at gmail.com>
> wrote:
>
>> Hi all,
>> how can I set the maximum TX power of the HackRF?
>> On gnu radio I'm using a "multiply const=6" and the parameter "IF
>> Gain=47" (of the osmocom sink). Any other method or strategies??
>> Thanks
>>
>> Matteo
>>
>> --
>> Matteo TERZI
>> Google Gmail Member
>>
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>>
>>
>
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