DATAMATH CALCULATOR MUSEUM
|Date of introduction:||1979||Display technology:||LED-stick|
|New price:||$229.50 (1980)||Display size:||12|
|Size:|| 5.9" x 3.2" x
150 x 81 x 39 mm3
|Weight:||8.3 ounces, 235 grams||Serial No:||SC5923|
|Batteries:||3*AA NiCd||Date of manufacture:||year 1979|
|AC-Adapter:||Origin of manufacture:||USA|
|Precision:||8||Integrated circuits:||MM5782, MM57129, MM5368, ITC1200, ITC1210, ITC4800, 2*ITC5028|
|Program steps:||Courtesy of:||Alicia Pendry|
|Download manual:||(US: 4.3 MByte)|
The navtronic 1701tr is based on the earlier navtronic 16 but added a physical protection to the 14 LED-indicators on the keyboard panel.
The 1701tr is the high-end model of four very similar flight computers:
1701: Basic navigation calculator
• navtronic 1701t: Added TIMER function (START, STOP keys)
• navtronic 1701r: RNAV functions (R1, R2, D1, D2 LED-indicators)
• navtronic 1701tr: TIMER and RNAV functions
electronics of the navtronic 16 and 1701 series is based on a National
Semiconductor Chip-Set MM5782 and MM57129 surrounded by some unknown chips with
ITCxxx designation. Main differences are the additional clock circuit MM5368 of
the 1701t and 1701tr.
In 1983 with the Navigator and Explorer enhanced flight computers were introduced.
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© Joerg Woerner, February 3, 2002. No reprints without written permission.