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MARS/CAP Coverage
The Z-100Plus provides continuous tuning coverage over its specified range; not just in the
ham bands. This makes it useful for MARS or CAP operation, or any other legal HF operation.
Optional Internal Battery Installation
The Z-100Plus is designed to allow the user to install his own internal battery pack. The
internal battery must be between 7 and 18V DC. A single 9V battery or a 6 or 8-cell AA or AAA
battery holder with batteries installed.
In order to install an internal battery supply, the lid of the Z-100Plus must be removed by first
removing the four screws on the side of the case. Connection of the battery pack to the Z-100Plus
is made via the two battery solder pads at J8 and J9. J8 is the negative terminal, and J9 is the
positive terminal.
Solder a pair of 20AWG or smaller wires to the solder pads at J8 and J9, being careful to
observe the polarity of the connections. The battery pack should be secured to prevent it from
moving around inside the case. For many installations, simply fastening the battery pack to the top
of the relays with double sided tape is sufficient. Care should be taken not to splash solder onto the
circuit board, nor to leave any loose objects inside the case when re-assembling the tuner.
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