Meade 2080/LX6 Instruction Manual download pdf (Page 23)

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FREQ RATE DESCRIPTION NOTES

60.1 Hz Q Sidereal rate; Default rate at

Quartz setting power up. Gives

sidereal frequency

accuracy to ±.005%;

Best for astrophotos

60.0 Hz Solar and Average rate for

planetary rate tracking planets;

Actual rates vary due

to retrogrades,

oppositions, etc.

57.9 Hz Lunar rate Best rate for

tracking the Moon

There are three menu file options in FREQ =. To see or set the

options, move the arrow to FREQ = and press ENTER. At

power up, the FREQ = default is the 60.1Hz Q setting. The

quartz rate is precisely fixed and cannot be altered. To choose

a different rate, press the ENTER key to see 60.1 M and then

again to see 60.1 M with the up and down arrow. These two

menu file options can adjust the tracking speeds. The

adjustment techniques are described below:

Display 34 shows the manual rate menu file option that can be

adjusted by pressing and holding the ENTER key to get the

double beep tone and the blinking cursor. Type in the new rate,

then when finished, press the ENTER key again.

Display 34

Display 35 shows the menu file option that allows you to step

the drive tracking frequency setting in tenths of a hertz, by

using the PREV and NEXT (up and down arrow) keys. This is

a convenient feature if you are trying to match the precise

speed of a planet, comet, or any other non-stellar object. To exit

this option, press the MODE key.

Display 35

5. Mode Five:

KEYPAD OFF/BRIGHTNESS ADJUST

In order to see very faint objects, it will sometimes be

necessary to either dim or completely turn off the keypad red

LCD backlighting. To do so press the MODE button until the

display goes blank. This is the OFF option.

To set the keypad brightness, press the ENTER button and

adjust the brightness to your satisfaction with the PREV and

NEXT keys. To exit, press the MODE key.

This brightness setting also dims the power panel power LED

and Ammeter.

NOTE: The backlighting is done by edge lighting a plastic light

bar underneath the keypad. Four LEDs are used and do not

give a perfectly even backlighting of the keys as keys closer to

a LED will be a little brighter than those keys further away.

FREQ = 60.1 M

FREQ = 60.1M ↕

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Meade 2080/LX6 Instruction Manual Page 23

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