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From: Shadow on 31 Jan 2010 15:25
Access Point Senao/ Engenius 2,4ghz Esr-1221 B/g Firmware 400mw

http://loja.tray.com.br/loja/produto-14629-1530-acess_point__senao_engenius_24ghz_esr1221_bg_com_firmware_400mw

Engenius has it as "discontinued", but 40 dollars sounds OK.

It appears I can unscrew the 2db antenna and put my 24db antenna's
reverse sma tipped cable directly into it. Anyone confirm that ?

TIA
From: Bob on 31 Jan 2010 16:17
On 31/01/2010 20:25, Shadow wrote:
> Access Point Senao/ Engenius 2,4ghz Esr-1221 B/g Firmware 400mw
>
> http://loja.tray.com.br/loja/produto-14629-1530-acess_point__senao_engenius_24ghz_esr1221_bg_com_firmware_400mw
>
> Engenius has it as "discontinued", but 40 dollars sounds OK.
>
> It appears I can unscrew the 2db antenna and put my 24db antenna's
> reverse sma tipped cable directly into it. Anyone confirm that ?
>
> TIA
I can't access that link but I am always dubious of some of these power
o/p claims.
ESR1221EXT
<http://www.engeniustech.com/datacom/products/details.aspx?id=266>
notice that it says 200mW
<http://www.engeniustech.com/resources/ESR-1221%20EXT%20Datasheet.pdf>
Available Transmit Power
2.412~2.472G (IEEE 802.11g) Up to 17 dBm @6 ~ 54Mbps
2.412~2.472G (IEEE 802.11b) Up to 23 dBm @1~11Mbps
200mW only when using 11b
Antenna *1 Detachable (RP-SMA), Peak Gain=2 dbi

Your shipping costs probably make it cheaper for you to use the .bra
site but the ESR1221EXT is $34.49
<http://www.keenansystems.com/store/catalog/product_info.php?cPath=2&products_id=272>
They appear to run a forum for Engenius products.
<http://www.wifithoughts.com/newug/bblog/phpBB2/index.php>

The engenius site doesn't list an ESR1221 on it's EOL products.
<http://www.engeniustech.com/datacom/products/Category.aspx?id=59>
From: Shadow on 31 Jan 2010 18:22
On Sun, 31 Jan 2010 21:17:02 +0000, Bob <bob(a)invalid.invalid> wrote:

>On 31/01/2010 20:25, Shadow wrote:
>> Access Point Senao/ Engenius 2,4ghz Esr-1221 B/g Firmware 400mw
>>
>> http://loja.tray.com.br/loja/produto-14629-1530-acess_point__senao_engenius_24ghz_esr1221_bg_com_firmware_400mw
>>
>> Engenius has it as "discontinued", but 40 dollars sounds OK.
>>
>> It appears I can unscrew the 2db antenna and put my 24db antenna's
>> reverse sma tipped cable directly into it. Anyone confirm that ?
>>
>> TIA
>I can't access that link but I am always dubious of some of these power
>o/p claims.
>ESR1221EXT
><http://www.engeniustech.com/datacom/products/details.aspx?id=266>
>notice that it says 200mW
They claim the power can be raised with a non-standard
firmware, although most sites recommend using 250mW max, and using a
fan if you put it at 400Mw.
The firmware is from http://www.aprouter.com.br
I have no idea if it works, but it appears to be quite
popular.
I was more worried about the quality of the components, some
makes have gone very downhill. I have an ASUS-based router by my knee
that's been working for 11 years, and a encore hub I've had to change
3 times in the last 2 years.
Do you have any idea on how Mw and antenna db relate to range
? It seems obvious to me that a 24db antenna will have more range than
a 2db one, but there must be some kind of limit as to how much power
it would be practical to use. And to how big an antenna can be, if you
don't have much power.
As far as I know, there are no legal limits to power where I
live in Brazil.
[]'s
PS Thanks for the links
><http://www.engeniustech.com/resources/ESR-1221%20EXT%20Datasheet.pdf>
>Available Transmit Power
>2.412~2.472G (IEEE 802.11g) Up to 17 dBm @6 ~ 54Mbps
>2.412~2.472G (IEEE 802.11b) Up to 23 dBm @1~11Mbps
>200mW only when using 11b
>Antenna *1 Detachable (RP-SMA), Peak Gain=2 dbi
>
>Your shipping costs probably make it cheaper for you to use the .bra
>site but the ESR1221EXT is $34.49
><http://www.keenansystems.com/store/catalog/product_info.php?cPath=2&products_id=272>
>They appear to run a forum for Engenius products.
><http://www.wifithoughts.com/newug/bblog/phpBB2/index.php>
>
>The engenius site doesn't list an ESR1221 on it's EOL products.
><http://www.engeniustech.com/datacom/products/Category.aspx?id=59>
From: Bob on 1 Feb 2010 04:14
On 31/01/2010 23:22, Shadow wrote:
> On Sun, 31 Jan 2010 21:17:02 +0000, Bob<bob(a)invalid.invalid> wrote:
>
>> On 31/01/2010 20:25, Shadow wrote:
>>> Access Point Senao/ Engenius 2,4ghz Esr-1221 B/g Firmware 400mw
>>>
>>> http://loja.tray.com.br/loja/produto-14629-1530-acess_point__senao_engenius_24ghz_esr1221_bg_com_firmware_400mw
>>>
>>> Engenius has it as "discontinued", but 40 dollars sounds OK.
>>>
>>> It appears I can unscrew the 2db antenna and put my 24db antenna's
>>> reverse sma tipped cable directly into it. Anyone confirm that ?
>>>
>>> TIA
>> I can't access that link but I am always dubious of some of these power
>> o/p claims.
>> ESR1221EXT
>> <http://www.engeniustech.com/datacom/products/details.aspx?id=266>
>> notice that it says 200mW
> They claim the power can be raised with a non-standard
> firmware, although most sites recommend using 250mW max, and using a
> fan if you put it at 400Mw.
> The firmware is from http://www.aprouter.com.br
> I have no idea if it works, but it appears to be quite
> popular.
> I was more worried about the quality of the components, some
> makes have gone very downhill. I have an ASUS-based router by my knee
> that's been working for 11 years, and a encore hub I've had to change
> 3 times in the last 2 years.
> Do you have any idea on how Mw and antenna db relate to range
> ? It seems obvious to me that a 24db antenna will have more range than
> a 2db one,

You are forgetting that communication is a two way operation and no
matter how much power you can transmit you are dependent on the the
other site having sufficient power for you to receive a workable signal.
There are numerous link calculators available on the web for you to get
some idea of what different combinations can achieve.
but there must be some kind of limit as to how much power
> it would be practical to use. And to how big an antenna can be, if you
> don't have much power.
> As far as I know, there are no legal limits to power where I
> live in Brazil.
> []'s
> PS Thanks for the links

ITU compliant countries do tend to have restrictions in place.
I don't read Portuguese but you may find the limits here:-
<http://www.anatel.gov.br/Portal/verificaDocumentos/documento.asp?null&filtro=1&documentoPath=biblioteca/Resolucao/2004/Anexo_res_365_2004.pdf>
From: Bob on 1 Feb 2010 08:11
On 31/01/2010 23:22, Shadow wrote:

> I was more worried about the quality of the components, some
> makes have gone very downhill. I have an ASUS-based router by my knee
> that's been working for 11 years, and a encore hub I've had to change
> 3 times in the last 2 years.

People don't tend to report when their eqpt works, however a search on
dslreports comes up these for Engenius problems:-
<http://www.dslreports.com/nsearch?q=engenius&action=Go>

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