565 manual
September 2003
Part #74279
Printed in USA
10
Figure 2-4 Microphone wiring for ORION
It is also important that the microphone body
have a common ground with the ORION.
We recommend wiring microphone cables
as shown in Figure 2-5. Please note that
mic cables for the Ten-Tec 705 and 706
microphones and the R9625 cable provided
for the Heil/Ten-Tec Studio One are already
wired in this configuration. Many connection
cables, like those used for other Heil
microphones, are not and have the potential
to introduce stray RF or distortion into SSB
audio.
Figure 2-5 Proper mic cable wiring.
(15) PHONES
DO
NOT
PLUG A MONO PHONE PLUG,
(two-circuit) INTO
ORION’s FRONT
PANEL PHONES JACK UNLESS
PROPERLY WIRED AS DESCRIBED !
The jack is optimally for stereo headphones.
ORION uses left and right stereo outputs
from two audio amps. A mono plug will
short-circuit one of the two audio channels,
causing damage to the radio. Use a stereo
(3-circuit) plug such as one that comes
packed with your radio. Using stereo
headphones lets you take full advantage of
ORION’s advanced features.
Audio from the front panel phones jack to a
stereo connector is left = tip, right = ring,
ground = sleeve.
Mono headphones can be used with
ORION, provided they are wired correctly
with a stereo plug and the headphone audio
settings in the AUDIO menu are set to the
appropriate values. You can use left side
audio output to mono headphones by wiring
the headphones as shown in Figure 2-6.
