ECM/FSS 209

is a device that simulates radio interference and jamming. It is used for training purposes.
The device is connected between handset and microfone input of the transceiver. Interference signals are mixed with the microfone signal; you can mix the undisturbed and the jammed signal in any combination.
Other signals, e.g. from tape or an external microfone, may be mixed additionally.

Assigned for:

SEM-25

SEM-35

"Schreibfunkgerätesatz 100 W or 400 W" (Teleprinter)

Built-in interference signals:

1) Keying of TX by A1-signals (accidental)

2) Interference of input signal with A2- signals (accidental)

3) Interference of input signal with hiss

4) Interference of input signal with multitone

5) Interference of input signal with bagpipe

6) Combination of 3) and 2)

7) Combination of 3) and 4)

8) Combination von 3) und 5)

Tuning of signals:

Stroke frequency and

level can be tuned.

Mixing possible with:

External mikrofone

Tape signal

Combination of both

Output signal goes to:

Connected radio and

Built-in loudspeaker or handset.

Powered by:

6 D-cells

Accessories:

4 cables

Padded canvas pouch