HP 415E User Manual

Section I
Figure 1-1 and Table 1-1
Model 415E
Figure 1-1.
Model 415E SWR Meter
Table 1-1. Specifications
Sensitivity: 0.15 шу rms at maximum bandwidth
(1 шу rms on high impedance crystal input).
Noise: At least 7.5 db below full scale at rated sen-
Sitivity and maximum bandwidth with input termi-
nated in optimum source impedance (see Input).
Noise figure less than 4 db.
Range: 70 db in 10 and 2 db steps.
Accuracy: +0.05 40/10 db step; maximum cumula-
tive error between any two 10-db steps, +0.10 db;
maximum cumulative error between any two 2-db
Steps, 20.05 db. Linearity: 20.02 db on expand
Scales, determined by inherent meter resolution on
normal scales.
Input: Unbiased low and high impedance crystal (100
and 5000 ohm optimum source impedance respec-
tively); biased crystal (1 v into 1K); low and high
current bolometer (4.5 and 8.7 ma +3% into 200 ohms),
positive bolometer protection. Input connector, BNC
female.
Input Frequency: 1000 eps, adjustable 7%. Other
frequencies between 400 and 2500 cps available on
Special order.
Bandwidth: Variable, 15 to 130 cps. Typically less
than 0.5 db change in gain from minimum to maxi-
mum bandwidth.
Recorder Output: 0 to 1V, 1000 ohms source imped-
ance, BNC female.
Amplifier Output: Oto 0.3V rms (NORM), 0to0.8rms
(EXPAND) intoat least 10K ohms, dual banana jacks,
Meter Scales: Calibrated for square-law detectors.
SWR: 1 to 4, 3.2 1010 (NORM); 1to1.24 (EXPAND).
DB: 0 to 10 (NORM); 0 to 2.0 (EXPAND). Battery:
charge state.
Meter Movement: 0.25% movement, taut-band sus-
pension, mirror-backed scale with expanded db and
swr scales greater than 4-1/4 in. (108 mm) long.
Power: 115 or 230 volts +10%, 50to 400cps, 2 watts.
Power line frequency or multiples thereof must not
be at the tuned amplifier frequency. Optional re-
chargeable battery provides up to 36 hours contin-
uous operation.
Dimensions: 7-25/32in. wide, 6-3/32 in. high, 11in.
deep from front side rail (190 x 155 x 279 mm).
Weight: Net 7-7/8 1b (3, 5 kg), 9-7/8 lb (4, 4 kg) with
battery.
Options:
01. Rechargeable battery installed.
02. Rear-panel input connector in parallelwith the
front-panel connector.
1-0
02152-2

HP 415E Specifications

General

Brand	HP
Model	415E
Category	Measuring Instruments
Language	English