[Hackrf-dev] How to set Tx power

[Mitja kocjančič]

No I just can't remember maximum valous so I set RF IF and BB Gain to 1000
to transmitt hackrf maximum output power

2015-12-04 2:05 GMT+01:00 김상혁 <tkdgur7896 at gmail.com>:

> As I know, range of gain at osmocom block is
> RF Gain - 0 or 14 (LNP switch off or on)
> IF Gain - 0 to 40 (4x)
> BB Gain - 0 to 62 (2x)
>
> is it different range from your gain level ?
>
> 2015. 12. 3., 오후 9:33, Mitja kocjančič <veso266 at gmail.com> 작성:
>
> Hi when I want to set TX Power to 15dbm on 76 Mhz I just set RF Gain to
> 1000 (Probably no efect after 50 for RF Gain but it works) and IF Gain and
> BB Gain to 10000
>
> Thats how I do it but I would be great if I could calculate (from IF And
> RF Gain) the power HackRF is putting out
>
> 2015-12-03 7:45 GMT+01:00 김상혁 <tkdgur7896 at gmail.com>:
>
>> Hi, I’m using HackRF One and I want to use frequency 2150MHz
>> However, when I set high frequency(my case : 2150MHz), the Rx can’t
>> receive any data from the Tx
>> I used sample rate 16MHz and my flow graph (GNURadio) like below:
>> Tx)
>> File source -> packet encoder -> GMSK mod -> osmocom sink
>> Rx)
>> Osmocom source -> GMSK demod -> packet decoder -> file sink
>>
>> I researched about Tx power and I found maximum Tx power as frequency
>>
>>    - 10 MHz to 2150 MHz: 5 dBm to 15 dBm, generally increasing as
>>    frequency decreases
>>    - 2150 MHz to 2750 MHz: 13 dBm to 15 dBm
>>    - 2750 MHz to 4000 MHz: 0 dBm to 5 dBm, increasing as frequency
>>    decreases
>>    - 4000 MHz to 6000 MHz: -10 dBm to 0 dBm, generally increasing as
>>    frequency decreases
>>
>> Also I tried to set Gain level at osmocom sink, but I don’t know how to
>> set the Tx power to maximum
>> Which parameter is effect on Tx power ?
>> Thanks,
>>
>>
>>
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>> HackRF-dev at greatscottgadgets.com
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>>
>>
>
>
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