| Features |
 |
Tone
Generator The tone is routed to the output by the
three-position toggle switch
marked TN TB. Selecting the TN position directs the oscillator
section to the output via the switched attenuator. A choice
of two frequencies is possible: 1KHz and I0KHz.
A two-way toggle switch selects the frequency. |
|
Attenuator
Two, three position toggle switches form the attenuator
section, enabling combinations of signal reduction up
to 50dB to be set in 10dB steps. This is achieved by a
single switch operation or use of both to create the required
sum. |
|
Talkback
An internal electret microphone and pre-amplifier create
potential for communication. It is selected to the output
using the TB position on the TN TB switch. |
|
Headphone
Output The headphone output can be used to either
monitor the signal being sent from the unit or a return
signal arriving back in. The selection is made using the
push switch marked RET, engaging the switch routes the
return signal to the headphones. |
|
Return
input This is an electronic balanced input stage
that allows an incoming signal to be monitored on the
headphones, an unbalanced signal presents no problem.
The connector is a 1/4" three pole jack socket wired
in the conventional balanced mode. (Refer to connection
details) |
|
Main
Output The main output is electronically balanced
on a three pin male XLR connector. The output stage is
the cross-coupled type and therefore can be unbalanced
without degradation to the signal level. Two LED indicators
allow the presence of phantom or tonader power to be detected
at the input of the microphone pre-amp. Both LED's light
on phantom, and one on tonader depending on the polarity. |
