MIL-PRF-1/849G
TABLE I. Testing and inspection.
Limits
Inspection
Method
Notes
Test
Conditions
Symbol
Min
Max
Unit
Qualification inspection
Variable-frequency
1031
6/ 7/ 8/ 30/
----
----
----
----
----
vibration
32/
Shock, specified pulse
1042
6/
----
No voltage applied; 15G;
----
----
----
----
t = 11 ms
Tuner stop endurance
4223
9/
----
No voltages applied
Torque
50
----
in.-oz
Mechanical tuning fatigue
4223
7/ 10/ 11/
----
No voltages applied
----
10,000
----
Cycles
12/ 31/
Operating torque or force
4223
10/ 33/
----
TA = 25qC
Torque
----
15
in. oz
Resettability
4223
13/
2
F = 9,550 r 50 MHz
'F
----
15
MHz
Direct-interelectrode
4266
----
----
C
10
14
pF
capacitance
Tuning rate
4223
14/ 33/
1
T (anode) = 70q r 10qC
'F
----
r60
MHz
RF bandwidth
4308
15/ 16/
1
F = F1 to F5
BW
----
2.0/tpc
MHz
Ib = 4.0 and 5.0 mA dc
21/
2
F = F1, F3, F5
BW
----
3.0/tpc
MHz
Ib = 13.5 and 16.5 mA dc
Minor lobe ratio
4308
15/ 16/
1
F = F1 to F5;
Ratio
8
----
dB
Ib = 4.0 and 5.0 mA dc
Mechanical tuning rate
4223
17/
----
----
----
----
----
Barometric pressure,
4028
18/
2
VSWR = 1.5:1; pressure
----
----
----
----
reduced
= 500 mmHg (absolute)
Temperature coefficient
4027
33/
2
T(anode) = 70q to 100qC;
'F/'T
----
0.25
MHz/qC
F = F3
Low-temperature
1047
19/
2
tk = 120 sec (max);
MP
----
2.0
%
operation
F = F3
Forced cooling
1143
33/
1
T
----
50
qC(rise)
Conformance inspection,
1/
part 1
Pressurizing
4003
----
----
40 to 45 psia, input and
----
----
----
----
output assemblies
Heater current
4289
----
----
Ef = 12.6 V; tk = 120 sec
If
2.0
2.4
A
(max)
Operating torque or force
4223
10/
----
TA = 25q r 5qC
Torque
----
15
in.-oz
Mechanical tuning range
4223
----
1
T(anode) = 70q r 10qC
F
9,600
----
MHz
Upper limit
F
----
8,500
MHz
Lower limit
See footnotes at end of table.
3
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