Re: A car with 6 antennas

On Fri, 08 Jul 2005 14:43:52 GMT, Dan Conti <dconti@xxxxxxxxx> wrote:

>
>>
>>
>> interestingly enough , standing right nearby one of these mobile
>> commo suvs , using a Opto R-10 receiver , NONE of the
>> transmissions ( you can see them talking to each other and
>> surely some of those antennae represent packet style
>> node networks of some sort ) will register on the r-10.
>> probably spread spectrum, wi-fi or UWB based equipment
>> in the suv.
>
>Unless you had their specific frequencies programmed into your R-10,
>you're not gonna hear a thing.
>
>If you were standing there with a 246 or 396 in close call mode, you
>would get hits on their frequencies.
>
>
>
>Dan

I'm speaking of the " OPTOELECTRONICS " R10 nearfield
surveillance receiver. ( the one with " intercept " on the front
panel )
the model before the R11 which was locked out on the cell bands.
the r11 had a kewler looking front panel and equipment feel .
( the more desirable r10 was NOT locked out on cell freqs )

this communications intercept surveillance receiver had NO frequency
programming keys on it ,
only the ability to " lock out " certain undesired freqs. it existed
a " decade " before the " close call " models you mention above.
it has a range ( depending on the antenna and filters on the input )
of 3 to 5 miles and more. ( depending on the power of the
transmitter too )

these extremely desirable " pro quality " nearfield surveillance
" signal intercept " receivers are still seen occasionally on ebay
but sell for many 100s of dollars nowadays.

this has nothing to do with the programmable ICOM IC-R10.


the opto R10 or R11 will blow the doors off the current so called
" close call " receivers and it " does not " find ANY of the
equipment in the mentioned comms vehicle. ( nor would
any of the , less sophisticated , close call rigs )

dunno about the " digital " signal intercept receiver made
by opto called the " digital explorer " ...... haven't tried it
near one of those comms suvs yet. maybe " it " could capture
some comms since it ( unlike MOST other equipment )
can " see " digital signals.


k.................



.

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