Re: The iPhone 4 - Our First Impressions, Good and Bad

[Kevin Hawkins <yahoogroupskh@xxxxxxxxxxxxxx>]

Radio frequencies conduct through direct 'shorts' and almost any
object
at short distances due to capacitive loading , resonance and
de-sensing.  This alters the optimum frequency notch and directivity of
the antenna too.   You'll notice this when you move your hand close to
an FM radio aerial, my bedside one is really picky as it loses signal as
your hand approaches which makes tuning really difficult..  So you need
a reasonable gap to avoid such issues - a lacquer or sticky tape isn't
going to work and the more mm of plastic the better - hence the bumpers
or even better an in case antenna ;-)

K

On 28/06/2010 13:08, Paul Gordon wrote:
> Regarding the antenna issue... - it occurs to me that a simple
application
> of a 99p bottle of clear nail-varnish lacquer around the metal edge
should
> provide electrical isolation from the holders' skin, and thus prevent
> electrical bridging of the two antennae, without unduly affecting the
> appearance of it?.... anyone care to try?... :-)
>
> Paul G.
>
>
>
>> -----Original Message-----
>> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
>> Behalf Of Mark McCall
>> Sent: 28 June 2010 09:03
>> To: Ukha_D@xxxxxxx
>> Subject: [ukha_d] The iPhone 4 - Our First Impressions, Good and
Bad
>>
>> The iPhone 4 landed at the Automated Home a day late but here's
our low
>> down on the handset after a few days of testing, including sample
photos
>> and video...
>>
>> http://bit.ly/chz5d8
>>
>> M.
>>
>>
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>
>
> ------------------------------------
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