[amsat-bb] Re: quick LVB cal question

i6kzr i6kzr at i6kzr.it
Sat Nov 26 15:49:03 PST 2011


Hi Myles,
this is what LVB notes teel us about your question:


  Calibration from the serial, or virtual serial USB or Ethernet connection

(1)Connect to the unit using a terminal emulator at 9600 bps, 1 stop 
bit, no parity and no handshake.

(2)Check for communication by typing the ‘C’ key followed by the enter 
key. Note that there is no echo of your keystrokes. Commands are also 
not case sensitive. The azimuth should be returned, although it will be 
the uncalibrated value.

(3)Using either the rotator control box switches or the optional front 
panel switches, move the rotator to its counter-clockwise end stop (zero 
degrees), which should be due North or due South depending on your rotator.

(4)Move the elevation to zero degrees.

(5)To set the left-most azimuth, type these four keys in sequence: ‘F’, 
‘A’, ‘S’, Enter. You will receive a reponse like: *Az Offset=0099*

(6)To set zero degrees elevation, type the four keys in sequence: ‘F’, 
‘E’, ‘S’, Enter. You will receive a response like: *El Offset=0326*

(7)Using either the rotator control box switches or the optional front 
panel switches, move the rotator clockwise 360 degrees for both (a) 360 
degree maximum azimuth rotators and (b) 450 degree South CCW stop 
rotators. For 450 degree North CCW stop rotators, move the rotator 
clockwise to 450 degrees.

(8)Move the elevation to either 90 degrees, or 180 degrees, depending on 
the end stop of your rotator.

(9)To set the right-most azimuth for both (a) 360 degree maximum azimuth 
rotators and (b) 450 degree South CCW stop rotators, type these four 
keys in sequence: ‘F’, ‘A’, ‘E’, Enter. For 450 degree North CCW stop 
rotators, type the four keys in sequence: ‘F’, ‘A’, ‘F’, Enter. In 
either case, you will receive a reponse like: *Az mul=0.897*

(10)For 90 degree elevation rotators only: to set 90 degrees elevation, 
type the four keys in sequence: ‘F’, ‘E’, ‘N’, Enter. For 180 degree 
elevation rotators only: to set 180 degrees elevation, type the four 
keys in sequence: ‘F’, ‘E’, ‘E’, Enter. In either case, you will receive 
a response like: *El mul=1.234*

(11)If you have a South CCW stopping rotator, you should key in the 
three key sequence ‘F’, ‘S’, Enter. For a North CCW stopping rotator 
(default), key in the three key sequence ‘F’, ‘N’, Enter.

(12)To commit this to EEPROM, type the three keys in sequence: ‘F’, ‘W’, 
Enter.

(13)When you reset or switch the unit on and off, the calibration 
parameters should be remembered.


If you wish a front panel buttons calibration, you must use the follow 
sequence:


  Calibration from the front panel buttons

You must have an LCD connected for this to work. To enter calibration 
mode, hold down one of the four front panel buttons as the unit is 
switched on. After the welcome screen (and potentially the Bad EEPROM 
message), you then enter the calibration mode.

The four buttons (from LSB to MSB) are Left, Right, Down, Up. On the 
LCD, these are referred to as L, R, D, U.

(1)*Set Az=min & press D (U=esc)*Using the L button, move the rotator to 
its counter-clockwise stop. The R button also operates to move the 
rotator right, although normally would not be required at this point. 
Press D to accept, or U to abort the calibration completely.

(2)*Set El=min & press L (R=esc)*Using the D button, move the rotator to 
the zero elevation stop. The U button also operates to move the rotator 
up, although normally would not be required at this point. Press L to 
accept, or R to abort the calibration completely.

(3)*Set Az=max & press D (U=esc)*Using the R button, move the rotator to 
its clockwise stop. If you are using a 450 degree azimuth rotator with a 
South CCW stop, you should move the rotator to be at the South position 
360 degrees clockwise of the CCW stop. The L button also operates to 
move the rotator left, although normally would not be required at this 
point. Press D to accept, or U to abort the calibration completely.

(4)*Set El=max & press L (R=esc)*Using the U button, move the rotator to 
the maximum elevation stop (90 or 180 degrees). The D button also 
operates to move the rotator down, although normally would not be 
required at this point. Press L to accept, or R to abort the calibration 
completely.

(5)*Az range: 450 U 360 D (R=esc)*For North CCW stop 450 degree 
rotators, press U. For 360 degree or South CCW stop rotators, press D. 
Press R to abort the calibration completely.

(6)*El range: 0-90 U 0-180 D (R=esc)*For elevation rotators with a 
maximum elevation of 90 degrees, press U. For ‘flipping’ elevation 
rotators, press D. Press R to abort the calibration completely.

(7)*CCW stop North=U South=D (R=esc)*For North CCW stop rotators, press 
U, for South CCW stop rotators press D. Press R to abort the calibration 
completely.

(8)*EE Write: U (R=esc)*To commit the settings to EEPROM, press U. Press 
R to abort the calibration completely.

(9)*EEPROM write OK Push btn to exit*Push any front panel button to 
return to normal mode.


Have fun, 73

                         Renzo I6KZR


Il 26/11/2011 21.11, myles landstein ha scritto:
> Hi
>
> For some reason  I couldn't find this online  sure I overlooked the obvious....
>
> I have a LVB Tracker with a Yaesu G5500
>
> Wanted to cal the  unit and was sure  if this was considered
>
>    a  360degree max az rotor  or 450   South CCW = FEN
>
> or
>
> 450North CCW = FEE
>
> also
>
> is this  considered
>
> a If you have a South CCW stopping rotator, you should key in the three key sequence ‘F’, ‘S’, Enter. For a North CCW stopping rotator (default), key in the three key sequence ‘F’, ‘N’, Enter.
>
> thanks
>
> Myles


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