WiFi Tx power question

[Rick Stevens]

On 09/19/2014 02:53 PM, jd1008 issued this missive:
>
> On 09/19/2014 01:14 PM, Heinz Diehl wrote:
>> On 19.09.2014, jd1008 wrote:
>>
>>>            Bit Rate=72.2 Mb/s   Tx-Power=15 dBm
>>> So, reason I am asking is that I would like to increase Tx power to
>>> 30dBm
>>> due to poor connectivity with the hotspot router.
>> There are two barriers:
>>
>> 1. the capability of your adapter
>> 2. CRDA
>>
>> For most countries, 2.4 GHz is limited to 15 dBm, so iwconfig won't
>> help. The only thing you can do is to check if your router has WMM
>> enabled for the 2.4 GHz band. If so, you have a chance that your
>> adapter can use HT/VHT (aka 802.11n/ac), which in turn allows a
>> slightly higher tx power (but quite sure not 30 dBm).
>>
>> Btw: increased tx power also leads to increased noise. You should
>> consider other ways to improve the connectivity to your AP (miving it
>> closer, using a repeater...)
>>
>>
> Thank you Heinz.
> I am also looking for a card that has much higher Rx sensitivity
> (i.e. can receive lower strength signals without problems).

Try to find a USB adapter with an external antenna. This is one and I
believe it works with Linux:
>


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