Reference Guide
Table Of Contents
- About This Guide
- Chapter 1 Getting Started
- Chapter 2 Accessories Setup
- Chapter 3 Batch and Spectrum One Terminal Setup
- Chapter 4 Spectrum24 RF Terminal Setup
- Chapter 5 Operating the PDT 6800 Series
- Chapter 6 Maintaining the Terminal
- Chapter 7 Error Recovery and Troubleshooting
- Appendix A Null Modem Pin-outs
- Appendix B Keyboard Layouts
- Appendix C Communications Status Codes
- Appendix D Specifications
- Appendix E Boot-Up Quick Reference
- Appendix F 2D Scanner Drivers and Applications
- Numerics
- A
- B
- C
- D
- E
- F
- I
- K
- L
- M
- N
- P
- R
- S
- T
- U
- W
5-15
Operating the PDT 6800 Series
You can tilt the terminal up to 55° forward or back and achieve a successful decode. Practice
quickly shows what tolerances to work within.
Figure 5-6. Scanning Angle and Specular Reflection
Range
Any scanning device decodes well over a particular working range — minimum and
maximum distances from the bar code. This range varies according to bar code density and
scanning device optics.
Scanning within range brings quick and constant decodes; scanning too close or too far away
prevents decodes. You need to find the right working range for the bar codes you are
scanning. The best general advice is:
!
Hold the scanner farther away for larger symbols.
!
Move the scanner closer for symbols with bars that are close together.
!
Start scanning at a distance from the bar code, not from direct contact. If the bar
code does not readily decode, move the scanner in closer.
Practice quickly shows what distances to work within.