JK Audio ComPack User Manual page 3

Features
2. Wireless / Cellular Telephones
ComPack comes equipped with a built in cellular telephone interface.
This 1/4" wireless interface jack accepts a special 1/4" to 2.5 mm cable
provided with the unit. This interface will work with any wireless phone
that can accept third party headsets and earpiece headsets.
Some wireless telephones have the standard 2.5 mm jack while others
have proprietary jacks. Adapters to convert the proprietary jack to the
standard 2.5 mm jack are available for most wireless telephones
through local electronic stores or their respective telephone dealers.
When using the wireless interface, it is important to keep your wireless
telephone 12" - 24" away from the ComPack and any microphone or
headphone cables. This will help prevent unwanted RF noise from en-
tering the unit.
The wireless interface on the ComPack works very well with most cellu-
lar telephones. However, some wireless telephones generate exces-
sive RF noise which can be can be heard as a "chattering" or "motor
boat" sound. The noise from these particular telephones will be unac-
ceptable for most broadcast applications.
3. 3.5 mm Line Input
The 3.5 mm input is a mono, line level input. This input can be used at
the same time as the XLR input.
4. Male XLR - Output / Com Link
The Male XLR output can be used in two ways. As a balanced, fixed
level output or as a telecom link for your beltpack intercom system.
5. 1/4" Headphone Jack
The headphone output is a 1/4" 3 conductor jack. Both the tip and ring
of this jack contain the same audio signal. Either mono or stereo head-
phones may be used.
6. Female XLR Input
The female XLR input can be used for either the connection of a micro-
phone or a line level audio signal. This input can be used at the same
time as the 3.5 mm line input.
7. Mic / Line Selector Switch
The Mic / Line Selector Switch determines whether the female XLR is
to be used as a mic level or line level input.
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