Antenna Selection - Codan 2110 Getting Started Manual

Antenna selection

Channels and modes
Channel
Channel 1
4500
Headquarters
2110 SSB Transceiver Getting Started Guide
Solar activity varies over an 11 year cycle. Higher frequencies
need to be used during periods of peak activity.
It is important to remember that you may need to change the
frequency you are using to achieve the best communication.
The general rules of thumb for HF communication are:
• the higher the sun, the higher the frequency
• the further the distance, the higher the frequency
The selection of an appropriate antenna is critical to the
success of your communications (see
appropriate antenna).
A channel is a name that is given to a frequency or a pair of
frequencies, e.g. 'Channel 1', '4500' and 'Headquarters'. The
frequencies may be any frequencies within the HF range.
Each channel has one or more modes associated with it. Each
mode indicates a sideband that can be used with the channel,
such as USB or LSB. When you make a call you need to
specify the channel and the mode you want to use.
Table 7 shows examples of channels and the information
associated with them.
Table 7: Examples of channels and modes
Receive frequency
(kHz)
10600
4500
22758
page 21, Selecting an
Transmit frequency
(kHz)
10600
–
23000
HF radio transmission
Modes
LSB, USB
AM
USB
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