We had about 45 minutes of audio on the recorder but it was mostly the car radio. The device was set up to be voice activated so the radio turned it on whenever it (the radio) was turned on. We did not have the IR transceiver so I of course
could not do the download myself. I backtracked to the manufacturer who claimed it could be downloaded in a minute or so. I did not do an IR scan because it was a vehicle and I did not suspect an IR device in that environment, live and learn I guess. We did find it on the physical search however. These things are available from various manufacturers.
John
From: TSCM-..._at_googlegroups.com [mailto:TSCM-..._at_googlegroups.com] On Behalf Of James Greenwold
Sent: Thursday, May 24, 2007 10:32 AM
To: TSCM-...@googlegroups.com
Subject: [TSCM-L] {1648} Re: Infrared transmitters
Part of my procedure is to
take a walk aroud the facility and look for IR with Gen 3 night vision. IR comes across like a flashlight and is easy to see.
If there was a recording (audio) from a vehicle for a day or even a few hours, how long would it take to download the data using light? It would seem that you might have to wait for stalled traffic.
--
James Greenwold
Bureau Of Technical Services
715-726-1400
b..._at_tacticalsurveillance.com
From: "JPapaleo" <JPap..._at_nyc.rr.com>
Reply-To: TSCM-...@googlegroups.com
Date: Wed, 23 May 2007
15:10:47 -0500
To: <TSC..._at_googlegroups.com>
Subject: [TSCM-L] {1645} Re: Infrared transmitters
I found a digital audio recorder that was placed in the rear taillight assembly of a vehicle in which the output of the recorder was sent to an IR transmitter, also in the assembly, allowing the recorder to be downloaded via the IR link. The device help four hours of talk and could download in under a minute. Sp all you had to do was pull up behind the vehicle with the device at a stop light and you would have your remote audio with no RF involved at all. We can talk more off-line unless
someone else is interested.
john
----- Original Message -----
From: don gibson <mailto:linkinves..._at_googlemail.com>
To: TSCM-..._at_googlegroups.com
Sent: Saturday, May 19, 2007 6:51 AM
Subject: [TSCM-L] {1615} Infrared transmitters
Have any members found Infrared transmitters used for spying whilst performing a sweep ?