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Telescope-Guiding Computer Comparison Chart

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JMI Computer
Comparison Chart

Computer Model

NGC-

SGT-

Description of Feature

microMAX

miniMAX* MAX superMAX MAX
Easy to Use (E) vs Advanced (A) E   E A A
Dimensions Computer   Computer Computer Interface
  Length 3.87"   5.75" 7.7" 3.93"
  Width 2.40"   3.60" 4.0" 2.43"
  Depth (including switches) 1.16"   1.44" 2.0" 1.00"
Total Object Database (Unique) 245   12,046 29,000+ Software
Dependent
  NGC (New General Catalog) 0   7,840 8,158 "
  IC (Index Catalog) 0   2,852 4,333 "
  M (Messier) 110   110 110 "
  ST (Star) 90   928   "
  NS (Non-Stellar) or
  DS (Deep Space)
17   386   "
  New (User-Defined) 28   28 1,100+/- "
  Planets (Including Sun) 0   9 8 "
  Alignment Stars 28   30   "
  Other       17,204  
  Upgrade Method Chip   Chip Free
Download
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Display Type LED Dot Matrix   LED Dot Matrix LCD Dot
Matrix
Computer
Display
  Character Size 5 x 5, 3/16"   5 x 5, 3/16" 7 x 5, 3/16" n/a
  Lines x Characters per Line 1 x 8   1 x 16 2 x 16 n/a
  Brightness Levels 4   4 100 n/a
  Contrast, Red Backlit, Heated  No   No Yes  n/a
Version Number
(Current as of March 1, 2003)
1.16   3.52 1.1.5 BBOX
4.00
Modes 7   10 15 Software
Dependent
  Align Yes   Yes Yes "
  Align Star Yes   Yes Yes "
  Az. Alt. R.A./Dec.
Mode
  R.A./Dec.
Mode
Yes "
  Catalog Yes   Yes Yes "
  Encoder (Test) Yes   Yes Yes "
  Eqatorial Table       Yes "
  Fix Alt Ref       Yes "
  Guide or Tour Yes   Yes Yes "
  Identify     Yes Yes "
  Polar Align     Yes   "
  R.A. Dec. Yes   Yes Yes "
  Setup Yes   Yes Yes "
  Sidereal       Yes "
  Status       Yes "
  Time       Yes "
  Timer     Yes Yes "
RS232 Computer Interface     Yes 2 Yes
Power Requirements (All Units Can Be Wired for External Power) One (1)
9v Battery 
  One (1)
9v Battery 
Four (4) AA Batteries One (1)
9v Battery 
Description of Feature

microMAX

miniMAX*

MAX

superMAX

MAX

JMI Computer
Comparison Chart

NGC-

SGT-

Computer Model

* Note:  The NGC-miniMAX has been discontinued.