Atec Aeroflex-3250 Series User Manual
Page 4
DISPLAYED AVERAGE NOISE LEVEL (DANL) [dBm/Hz]
0 dB RF attenuation, 50
Ω
termination
RBW 1 Hz, VBW 1 Hz, preamp OFF
20-30
o
C 0-55
o
C
100 kHz to 10 MHz
-135
-132
10 MHz to 2 GHz
-143, -145 typical
-140, -142 typical
2 GHz to 2.9 GHz
-141, -145 typical
-138, -142 typical
2.9 GHz to 3 GHz
-139, -141 typical
-136, -140 typical
3 GHz to 13.2 GHz
-141, -145 typical
-138, -142 typical
13.2 GHz to 18 GHz
-138, -142 typical
-135, -139 typical
18 GHz to 26.5 GHz
-133, -138 typical
-130, -135 typical
IMMUNITY TO INTERFERENCE
Residual Responses
-90 dBm (0 dB RF attenuation, 50
Ω
termination)
-85 dBm above 23 GHz (3254 only)
Other Input Related
-55 @ -30 dBm input
Spurious [dBc]
DISPLAY RANGE
Log Scale
0.1 to 1 dB / div in 0.1 dB steps
1 to 20 dB / div in 1 dB steps
Linear Scale
10 Divisions
Units of Level Axis
dBm, dBmV, dBμV, V, W (log level
display) mV, μV, dBmV (linear level
display)
REFERENCE LEVEL
Logarithmic Range
-170 dBm to +30 dBm, 0.1 dB steps
Linear Range
7.07 nV to 7.07 V in 1% steps
Accuracy
0 dB
TRACES
Number
3 traces
Trace Detectors
Normal, peak, sample, negative peak,
log power average, RMS average, and
voltage average
Trace Functions
Clear/write, max hold, min hold, view,
blank, average
FREQUENCY RESPONSE
10 dB input attenuation, preselector centering applied
20-30
o
C
0-55
o
C
1 MHz to 3.0 GHz
±0.5 dB
±1.0 dB
3.0 GHz to 8 GHz
±1.0 dB
±3.0 dB
8 GHz to 13.2 GHz
±1.5 dB
±4.0 dB
13.2 GHz to 22 GHz
±2.0 dB
±5.0 dB
22 GHz to 26.5 GHz
±2.5 dB
±5.0 dB
1 MHz to 3.0 GHz
Preamp ON
±1.0 dB
DISPLAY LINEARITY [dB]
Linear and Log Switching
0
Error
Log Scale Switching
0
Error
Linearity
±0.1 total @ input mixer level
≤-20 dBm
±0.13 total @ -20 dBm
VECTOR ANALYSIS
Maximum digitizer analysis bandwidth
30 MHz
Digitizer ADC Resolution
14 bits
Dynamic Range
85 dB
Residual FM
<1% (nominal)
Capture Memory
128 Mbytes (32 Msamples)
Modulation Formats
PSK
8, 16, 32, 64
BPSK, QPSK, OQPSK
Differential, shifted
QAM
4, 8, 16, 32, 64, 128, 256
Maximum Symbol Rate
13 MHz
Filters
Raised cos
Root raised cos
AM/FM DEMODULATION
Input Power Range
-60 dBm to +30 dBm, preamp OFF
-80 dBm to +30 dBm, preamp ON
Modulation Rate Range
1 Hz to 10 kHz @ RBW 10 kHz to
100 kHz
1 Hz to 30 kHz @ RBW 200 kHz to
500 kHz
Peak FM Deviation
200 Hz - 500 kHz
FM Deviation Accuracy
±5%
AM Depth Range
5% - 99%
AM Depth Accuracy
±5%
Audio Output Port
Loudspeaker, phone jack
INPUTS AND OUTPUTS
RF INPUT
Type Front
APC 2.92 mm, 50
Ω
(26.5 GHz)
VSWR>10 dB input attenuation
<1.5 nominal @10 MHz to 3 GHz
<1.8 nominal @ 3 GHz to 13.2 GHz
<2.0 nominal @ 13.2 GHz to 26.5 GHz
3RD IF OUTPUT
Type
Rear
BNC female, 50 W
Frequency
21.4 MHz
Bandwidth
16 MHz Max, different as prefilter
Level
+2 dBm nominal, at top of screen
Audio Output
Type
Front
Phone jack
Ext Trigger Input
Type
Rear
BNC female, 10 k
Ω
nominal
Trigger level
TTL nominal
Sweep Gate Output
Type
Rear
BNC female
Trigger level
TTL nominal
Reference Frequency Output
Type
Rear
BNC female, the same as reference
input port