Appendix K. RF400/RF410 Pass/Fail Tests
K-6
FIGURE K-3. 3 dBd 900 MHz Collinear Omni Antenna
(d)
Set up remote RF400/RF410 with NO antenna and with antenna
connector 20 inches above floor.
(e)
Arrange antenna distance apart according to following table.
TABLE K-1. 900 MHz Gain Antenna Test Distances
Antenna
Gain
Over ¼ Wave
Power Ratio
vs. ¼ Wave
Distance Apart
*
(
Ratio
Power
ft.
5
×
)
9 dBd
11.2 dB
13.18
18 ft.
6 dBd
8.2 dB
6.61
13 ft.
3 dBd
5.2 dB
3.31
9 ft.
-2.2 dBd
0 dB
1.0
5 ft.
* This assumes a signal strength vs. distance relationship of 1/d
2
(f)
Type 8 groups of 5 characters on the terminal (aaaaabbbbbccccc etc.)
(g)
100% of characters should appear on screen with good yagi/collinear
antenna.
(h)
Removing yagi/collinear antenna, you should get no echoed
characters.
Summary of Contents for RF400
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Page 8: ...RF400 Table of Contents iv This is a blank page...
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Page 44: ...Appendix B Setup Menu B 4 This is a blank page...
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Page 64: ...Appendix H Distance vs Antenna Gain Terrain and Other Factors H 8 This is a blank page...
Page 72: ...Appendix J Monitor CSAT3 via RF400 Series J 2 This is a blank page...
Page 88: ...Appendix L RF400 RF410 Average Current Drain Calculations L 10 This is a blank page...
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