The "Americans" TV Series

[Joe Leikhim]

On 3/13/2015 10:40 PM, Joe Leikhim wrote:
>
On 3/12/2015 4:40 PM, Richard O'Neill wrote:
> On 3/12/2015 2:35 PM, Joe Leikhim wrote:
>> Martha's skill at avoiding a Non Linear Junction Detector
>
>  Wow, how did she do that? Diodes are everywhere and in everything 
> these days. ;-)
>
The NLJD looks like a metal detector but consists of two 915 MHz 
transmitters Frequency A and Frequency B, and a receiver that responds 
to an Inter-Modulation product frequency C. Example A= 915 MHz, B = 914 
MHz, 2A-B=C, C = 916 MHz .

In the scene, she is crying, sitting in the FBI Office toilet ripping 
the receiver apart and you are led to think she intends to flush it (too 
big) she then soaks the circuit board in the sink and wraps it with a 
wet towel, puts it in her purse. Later when the office is swept by a 
TCSM tech, the detector hears barely a crackle going over her purse and 
he dismisses it.

During that era, the electronics on the desk were at most a computer 
terminal, an analog 500 WE telephone and a calculator.  No 
cellphones.iPods, Key Fobs RFID tags, LED lamps etc, to sort through.

Great series with a lot of tech stuff. One episode had the spies getting 
access to the trunk of an FBI car to get a copy of the encryption key 
from a trunk mounted green KY series like encryption device. The key was 
a punch card from which a wax impression was made. This device may or 
may not have been accurate in the Reagen era.


Joe K4SAT