User's Manual

Noteworthy Operational Considerations

Before ANY use of the

Joey1W

1. Verify the TRANSMITTER is functioning correctly by

checking its transmission with a good quality receiver

programmed to the correct frequency.

2. Verify the RECORDER portion by operating the

J1W

in PC

Mode and making a test recording.

3. ALWAYS use a fully charged battery at the start of any operation.

4. PRACTICE with this piece of equipment prior to official use.

1.6 Timer Mode

When configured to timer mode, the

J1W

’s recorder will sleep until

the next preset start time has been reached. After all timers have

expired, the

J1W

’s recorder remains in sleep mode until a power reset

returns it to normal operation. If all start times have expired prior to

power being applied, the

J1W

’s recorder operates as if no timers had

been set.

1.7 Recording Quality

The

Joey1W

’s

audio front end and data storage algorithms are

designed to provide the user with a range of quality options ranging

from direct storage of the 8 bit samples (Linear Pulse Code

Modulation, LPCM) to Adaptive Differential Pulse Code Modulation

(ADPCM) for the 4 bit modes.

Sampling Speed (kHz)

Typical Bandwidth (Hz)

8 3200

11 4700

Table 2, Typical Joey1W Recorder Audio Bandwidths

1.8 Recording Times