On 4/17/11 10:06 AM, doc@kd4e.com wrote:
>> Go spend about about $100 on a small UPS.
>
> $39.95 on sale at OfficeMax today. :-)
>
>> Passive is possible, but you would need.
>>
>> Exterior and interior antennas matched to the bands used by the cell
>> carrier. Note, _bands_, not band. Most carriers will be running one
>> high, one low (example, 800/1900), but the specifics vary with
>> technology type (GSM v.s. CDMA) and specific carrier.
>
> Verizon.
>
>> A very short run or very low loss coax (low loss at up to 2Ghz).
>
> OK.
>
>> Ideal external antenna placement.
>
> Not a problem putting a beam outside and pointing it SE at the
> tower.
Generally you would need to not only be able to eyeball the tower, but
have a clear fresnel zone.
If not you might need to fall back to using the external antenna port on
the phone.
>
>> A _very_ strong signal.
>
> More elements, at these frequencies there's not much weight or
> wind-resistance ...
>
> I can homebrew a beam and I have a variety of coax from flexible
> hardline w/N-type connectors, low-loss coax w/SMA's, and the usual
> Ham coax. The length will be fairly short.
>
>> 2) Farther away with perfect line of sight to the tower with a well
>> aimed high-gain directional on roof.
>
> # 2 would be the situation.
>
> Sounds like a fun challenge ... as time permits.
>
> Thanks!
>
> doc
>
>
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