Level A N D Frequency; Noise - HP 4935A Operating And Service Manual

Model 4935A
TRANSMITTER
Noise with Tone
Frequency . . . . . . . . . . . . . . 1004 Hz fixed tone
(For other specifications, see Level and Frequency)
Signal-to-Noise Ratio
Frequency . . . . . . . . . . . . . . . . 1004 Hz fixed tone
(For other specifications, see Level and Frequency)
Impulse Noise
Frequency . . . . .1004 Hz fixed tone or quiet terminated
(For other specifications, see Level and Frequency)
Noise-to-Ground
Transmitter is quiet terminated
P/AR (Optional)
Frequency . . Signal spectrum is a complex pulse train of
16 frequencies between 140 Hz and 3890 Hz.
Level Range . . . . . . . . . . . . . . . . . . . . .-40 to 0 dBm
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 dB
T a b l e l - l . SpecificatilJns
depending on filter selection
(Continued)
R E C E I V E R
Noise with Tone
Filter. . . . . . >50 dB rejection from 995 to 1025 H
Notch
Range (@ 600R and 900R)
Accuracy . . . . . . . . . . . . . . . . .
(For other specifications, refer to Message Circuit Noise)
Signal-to-Noise Ratio
Signal Level Range . . . . . . . . . . . . . . . . . .
Ratio Range . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Impulse Noise
Level Range . . . . . . . . . . . . . . . . . . . . . . .
Notch Filter. . . . . . . . . . . . . . . . . . . .
Threshold Ranges (@ 6OOfi)
Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mid
High : : : : ....
Loss of Holding Tone Indication . . . . . . . . . . . .
Threshold Accuracy (above 40 dBrnl
Count Timer . . . . . . . . . . . . . . .
Count Range . . . . . . . . . . . . . . .
Count Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noise-to-Ground
Range (@ 600R and 9OOfi) . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resolution
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
P/AR (Optional)
P/AR Range. . . . . . . . . . . . . . . . . . .
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accuracy (from 30 to 110 P/AR units) . . . +2 P/AR units
Level Range . . . . . . . . . . . . . . . . . . . . . . .
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Range:
Operating . . . . . . . . . . . . . . 0°C to 50°C (32'F to 122°F)
with batteries O°C to 40°C (32OF to 104OF)
Storage . . . . . . . . . .
with batteries -2O'C to 45'C (-4'F to 113°F)
Warm up time @ 20°C for stated accuracy . . . . . . . . .5 min.
Dimensions .I 1.2 x 25.9 x 28.6 cm (4.4 x 10.2 x 11.25 in.)
Weight . . . . . .5.0 kg (11 Ibs.), 6.5 kg (14 Ibs.) with battery
OPTIONS
001 . . . . . . . . . . . . . . . . .
002 Adds P/AR measurement in place of Norse-to-Ground
Adds both battery pack and P/AR
003 . . . . . . . . . . . . .
ACCESSORIES:
15513A . . . . . . . . . Test cord w/31 0 male at both ends
. . . . . . . . . . . . . . . . . . . . .
18161 A . . . . . . . . . . . . . . . . . . . . . , . . . . . . .
General Information
. . . . . . . . . . . . . .
I O - 1 0 0 dBrn
.-40 to +I 3 dBm
IO to 45 dB
.-40 to +I3 dBm
.See Noise with Tone
Minus sign
. . . . . . . . . . . .
5, 15,60 min. or non-stop
O-9999 for each threshold
8per sec.
.O to 120 P/AR units
1 P/AR unit
.-40 to +3 dBm
Adds rechargeable battery pack
Deletes Noise-to-Ground
19" rack mount adapter
Soft pack carrying case
Ladder bracket
1
Z
1 dB