User's Manual
Table Of Contents
- Product Safety and RF Exposure Compliance
- ATTENTION!
- Computer Software Copyrights
- Documentation Copyrights
- Disclaimer
- Patent Disclosure
- Notations Used in This Manual
- Getting to Know Your Radio
- Basic Radio Operation
- Common Radio Features
- Conventional Features
- Trunking Features
- Secure Features
- Troubleshooting
- Accessories
- Appendix: Maritime Radio Use in the VHF Frequency Range
- Glossary
- Commercial Warranty and Service
- Index
- Control Head Foldout Page
20
Basic Radio Operation
Transmitting on Trunked Systems
Follow these steps to transmit on a trunked system:
1 Select a desired zone and mode (see page 17).
Note:If no secure voice modes
are available for a transmission,
the display shows NO SEC.
You must switch to a clear mode or wait
until a secure voice channel is available before you can
transmit.
When you hear a transmission, use the Volume Knob to adjust
the volume to a comfortable listening level if necessary.
2 Press and hold the PTT button to transmit.
Speak clearly into the microphone.
The red LED lights steadily when the radio is transmitting.
3 Release the PTT button to receive.
Notes: If you hear a busy (“bah-bah-bah-bah”) signal, release the
PTT button. You hear a “di-di-dit” (“call-back”) tone. You
have three seconds to transmit before you hear another
busy signal.
If transmission is not possible for some reason, you hear a
continuous, low-pitched (“talk prohibit”) tone. Your radio may
be out of range.
96C67_Text.book Page 20 Thursday, March 1, 2007 8:54 AM