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The Models FE-7913A and FE-7914A MIL Qualified Distribution
Systems feed low noise reference signals to multiple users in satellite
ground stations and surveillance systems where constant phase and
high isolation must be maintained at the output ports.
Amplifier modules are constructed of cast aluminum
and circuitry is encapsulated to minimize vibration induced phase
noise. Individual module power regulators and high isolation cascode
amplifiers ensure that output phase shifts are less than 0.001¡
when adjacent modules are removed or terminated.
The systems can be supplied with amplifier modules
operating at any frequency from 100 kHz to 100 MHz. In addition,
multiplier modules are available to provide an output signal whose
frequency is any multiple of the input reference frequency.
Narrowband ovenized input crystal filters in the
FE-7914A suppress line related spurious signals and reduce phase
noise at frequencies greater than 30 Hz from the carrier.
Available Options
• External DC Operation only. 20 to 32 VDC
• Frequencies from 100 kHz to 100 MHz
• Synthesizer modules-any output frequency derived from reference
input
• Choice of wide or narrowband crystal filtered inputs- reduce
noise and line-related spurious signals on input
• Multiple frequency amplifier configurations
• Choice of 1 to 12 channels with dual power supplies or 1
to 16 channels with single power supply
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| MODEL
FE-7913A SPECIFICATIONS |
| A Twelve Channel Distribution
Amplifier with fixed output levels and redundant power supplies. |
RF
Input |
Level:
Impedance:
VSWR:
|
+13 dBm
50 ohms
1:5:1 |
RF
Output |
Level:
Impedance:
VSWR:
Harmonics:
Spurious Signals:
Isolation:
Phase
Perturbations:
Amplitude Perturbations: |
+7 dbm
(nom.)
50 ohms
1:5:1 max
-40 dbc max
-110 dBc max
100 db min
0.001¡ max
0.01 db max
|
Phase
Noise |
Offset
Frequency (Hz)
1
10
60
100
1k
10k-10M
|
Phase noise
max (dBc/Hz)
110
125
135
146
155
165
|
Alarm
Output |
Individual
amplifier and power supply alarms, Alarm level; TTL high |
AC
Input |
Voltage:
Frequency:
Power: |
120 /220 VAC
47 to 440 Hz
15 Watts |
| Environment |
Operating
Temp:
Non-Operating Temp:
Humidity:
Altitude:
Shock:
Vibration: |
-28°C to +55°C
-55°C to +85°C
90% relative
50,000 feet
10g peak, 11 msec.
1.5g peak, 5-200 Hz
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| Physical |
Dimensions:
Weight:
|
19 in. wide
3 1/2 in. high
13 1/2 inches deep
31 pounds |
| MODEL
FE-7914A SPECIFICATIONS |
| Six isolated channels
of amplification with three crystal filtered inputs, each feeding
two outputs.Settable output levels and redundant power supplies. |
RF
Input |
Level:
Impedance:
VSWR:
|
0.6 to 1.2V RMS
50 ohms
1.3:1 max |
RF
Output |
Level:
Impedance:
VSWR:
Harmonics:
Spurious Signals:
Isolation:
Phase Perturbations:
Amplitude Perturbations:
|
0.3 to
1.5V RMS, adjustable
50 ohms
1:5:1 max
-50 dbc max
-110 dBc max
100 db min
0.001¡ max
0.01 db max
|
Phase
Noise |
Phase noise
max (dBc/Hz)
110
125
135
146
155
165
|
Input
Filter Attenuation (dBc)
|
Narrow-
band
Filter
|
Wide-
band
Filter
|
|
0
|
0
|
|
0
|
0
|
|
10
|
0
|
|
15
|
0
|
|
20
|
20
|
|
30
|
35
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|
Alarm
Output |
Summary
alarm, TTL high |
AC
Input |
Voltage:
Frequency:
Power: |
120 /220 VAC
47 to 440 Hz
15 Watts |
| Environment |
Operating
Temp:
Non-Operating Temp:
Humidity:
Altitude:
Shock:
Vibration: |
-28°C to +55°C
-55°C to +85°C
90% relative
50,000 feet
10g peak, 11 msec.
1.5g peak, 5-200 Hz
|
| Physical |
Dimensions:
Weight:
|
19 in. wide
3 1/2 in. high
13 1/2 inches deep
31 pounds |
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