HARVARD H407, Руководство пользователя

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HELPFUL HINTS
High SWR robs you of range and puts a strain on your output transistor.
ALWAYS TUNE A NEW ANTENNA.
Never tune your antenna in a closed area (garage, under a metal car port, etc.)
incorrect tuning may result.
MAKE SURE ALL MECHANICAL CONNECTIONS ARE TIGHT.
DON'T CRUSH OR SHARPLY BEND THE COAXIAL CABLE - it should remain
generally round to do its job properly.
TIGHTEN YOUR PL-259 CONNECTOR OCCASIONALLY - road vibration
has a tendency to loosen it which can cause output transistor problems.
PERIODICALLY (every 6 months)' re-check your SWR. Corrosion and road grime
may rob you of performance.
PERIODICALLY check your coaxial cable for wear. A broken or loose wire could
cause RF output transistor failure.
This information was produced to help you understand the installation and
maintenance of your antenna and cable feed system. Many field problems
have been traced to problems such as the above. They can lead to eventual
failure of the RF output transistor in your transceiver. Careful installation and
maintenance can prevent these problems.