1. Convert Melbourne Time to UTC

The vertical (Y) axis uses UTC, so you'll need to convert to it from Melbourne time:

• Australian Eastern Standard Time (AEST - No Daylight Saving): Subtract 10 hours from Melbourne time to get UTC.

  Example: Currently it's 5:40 PM AEST in Melbourne. So, the UTC time is 5:40 PM - 10 hours = 7:40 AM UTC.

Once converted, find this UTC time on the vertical (Y) axis of the LAMP chart.

2. Determine the Distance

The horizontal (X) axis shows the distance in kilometers from your base station to where you want to communicate. Locate the approximate distance on this axis.

• 3001: Is located in Notting Hill, Victoria. (Connects to 3SJ Melbourne)
• 3002: Is located in Bambill, Victoria. (Connects to 3SJ Melbourne)

3. Find the Intersection

Imagine drawing a vertical line from the distance on the X-axis and a horizontal line from the UTC time on the Y-axis. The area where these lines meet is important.

4. Interpret the Color

The color within the intersection area represents a recommended channel. Refer to the legend of the LAMP chart to understand what each color means.

For example, a light grey TS area might suggest that channel 1 is likely to work well for that time and distance.

5. Understand the Recommendation

The frequencies shown are recommended for reliable communication within the local area. They are generally chosen to be a bit lower than the predicted Maximum Usable Frequency (MUF) to increase the chances of a successful connection.

It is made to assist with finding a reliable channel for your signal to bounce off the ionosphere effectively. It is not a guarantee that the channel will work.