setup
Measurement table
plots of rfi
Summary
On 160414,160427,160506,160509 we measured
the rfi coming from the new visitor center displays. The
measurements were made at the visitor center using a
bfield probe as well as an lband helix. Data was acquired
using the anritsu spectrum analyzer.
The display tested were:
The table below lists the measurements that were stored on
the anritsu.
file |
ant |
measurement |
date |
notes |
Omni globe |
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|
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49 |
lb |
cpu on, globe off |
160414 |
at cpu |
50 |
lb |
all off |
at cpu |
|
58 |
lb |
all off |
at globe |
|
59 |
lb |
globe on, cpu off |
at globe |
|
60 |
lb |
globe on, cpu on |
at globe |
|
61 |
lb |
globe on, cpu on |
obsDeck south rail door closed |
|
62 |
lb |
globe on , cpu on |
obsDeck south rail door open |
|
63 |
lb |
globe off, cpu off |
obsDeck south rail door closed |
|
64 |
lb |
trace A:monOff, cpuOn trace C: monOn,cpuOn |
at cpu |
|
75 |
lb |
cpu on |
160506 |
helix 1 meter from cpu, pointed at cpu |
76 |
lb |
cpu off |
off for rec 75 |
|
crater machine |
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|
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65 |
eprb |
motor on, cpu on |
160414 | Eprb next to motor |
66 |
eprb | motor off, cpu on |
Eprb next to motor |
|
67 |
eprb | motor on, cpu on zero span |
Eprb next to motor |
|
atmospheric
radar |
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|
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68 |
lb | all on |
160414 | helix 3 feet from display pointed at
display |
69 |
lb | all off |
same as above |
|
70 |
lb | all on (repeat 68) |
same as above |
|
Track an
asteroid |
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|
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49 |
Bprb |
kinect on |
160427 |
large Hprobe perp to kinect window
(vertical) |
50 |
Bprb |
kinect unplugged,projector still on. |
same as above |
|
58 |
Bprb |
all off |
same as above |
|
77 |
lb |
all on |
160509 |
lband helix pointed at kinect output
window, 1 meter away |
78 |
lb | kinect off |
off for rec 77 |
|
radio freq in
the sky (upstairs) |
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|
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59 |
lb |
all on |
160506 |
posA: helix 1 meter from screen, pointing
at screen |
60 |
lb |
all on |
polD: 1 meter from side door pointed at
cpus. |
|
61 |
lb |
all off |
posA: off for rec 59 |
|
62 |
lb |
all off |
posD: off for rec 60 |
|
63 |
Bprb |
all off |
posA: large loop, vertical, loop perp to
screen |
|
64 |
Bprb |
all off |
posD: probe vertical between 2 cpus |
|
65 |
Bprb |
all on |
posA: on for rec 63 |
|
66 |
Bprb |
all on |
posD: on fro rec 64 |
|
Deep sky
detective (upstairs) |
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|
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67 |
Bprb |
all on |
160506 |
PosA. large loop, vertical, perp to
screen, next to screen |
68 |
Bprb |
all on |
PosB: next to cpu |
|
69 |
Bprb |
all off |
PosA: off for rec 67 |
|
70 |
Bprb |
all off |
PosB: off for rec 68 |
|
71 |
lbnd |
all off |
posA: lband helix pointed at screen, 1
meter away |
|
72 |
lbnd |
all on |
PosA: on for rec 71. |
|
arecibo
telescope model(downstairs) |
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|
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73 |
lbnd |
moving azimuth |
150506 |
PosA:lband helix |
74 |
lbnd |
no motion |
PosA: off for rec 73 |
|
Exhibit |
plots |
description |
Globe |
.ps .pdf |
|
crater |
.ps |
Make a crater display:
Processing:x101/160414/rfiVc_crater.pro |
atmradar |
.ps |
atmospheric radar display
|
radarTrack anAsteroid |
.ps |
Track and asteroid display.. kinect unit
and projector
|
AO model |
.ps |
AO telescope model
|
Upstairs
displays: |
||
RadioSky |
.ps |
Radio sky display: 3 interactive
monitors, cpus inside display
|
deepSky detective |
.ps |
Deep sky detective display.
|