B1240
Synthesized AM/FM
Signal Generator
10 KHz to 1040KHz frequency range
AM, PM and FM modulation
-127dBm to +6dBm output level
Self Test and Calibration capabilities
25W reverse power protection
100 location memory for storing Frequency, modulation and output level data
Optional GPIB interface
B1240
SPECIFICATIONS
Frequency:
Range:
10KHz to 1040MHz
Display Resolution:
10Hz (10KHz to 520MHz), 20Hz (520MHz to 1040MHz)
Accuracy:
±1.5 x 10
-6
after 20 minutes of warm up
Output Characteristics:
Output level Range:
-127dBm to + 6dBm
Display Resolution:
0.1dB
Accuracy:
±1dB (> -10dBm), ±2dB (< -10dBm)
Amplitude Flatness:
< 0.5dB (10KHz to 1040KHz, -10dBm to +6dBm)
Output impedance:
50Ω
Amplitude Units:
dBm and dBµ
Output Protection:
25W of reverse power
Spectral Purity:
Spurious:
Better than -35dB at carrier frequency < 62.5MHz and 0dBm
Better than -25dB at carrier frequency > 62.5MHz and 0dBm
Residual Modulation:
FM: 7Hz, AM: 0.05%
Modulation
FM:
Deviation:
0 to 100KHz (1Mz to 1040MHz)
Carrier Freq. x 10% (below 1MHz)
Resolution:
10Hz (0 to 10KHz deviation)
100Hz (10KHz to 100KHz deviation)
Accuracy:
±5% for 1KHz or 400Hz modulation
Frequency Response:
±0.5dB (50Hz to 50KHz)
Distortion:
< 2% THD (1KHz Mod., Max deviation and
Carrier Freq. > 250KHz)
PM:
Range:
0 to 10 Radians
Resolution:
0.01 Radians
Frequency Response:
±1dB (10KHz to 10KHz)
Deviation Accuracy:
±5% at 1KHz Modulation
AM:
Range:
0 to 99%
Resolution:
0.5%
Accuracy:
better than ±4% of depth setting + 1% at 1KHz
Frequency Response:
±0.5% (50Hz to 50KHz)
Envelope Distortion:
< 3% THD (at 70% mod and 1KHz)
Modulation Oscillator:
Frequency: 1KHz and 400Hz
External modulation Input:
Range: 10Hz to 50KHz
Input Level: 0.9V to 1.1V RMS (With Modulation ALC)
Input Impedance:
100KΩ (Approx.)
Memory:
Locations 0 to 19 store Frequency, Modulation and Output level
data; Locations 20 to 99 store Frequency data only;
3 independent memories for storing output level data.
Display:
Carrier Frequency:
9-digit LED
Modulation:
3-digit LED
Output Level:
4 -digit LED
Memory Location:
2-digit LED
General Specifications
Input Power:
110/220V
Frequency:
50/60
Size:
4.7" (H) x 17" (W) x 17.7" (D)
Weight:
26.5 lbs
Standard Accessories:
Operation manual, Line cord and Type N cable
Optional Accessories:
GBIB interface
40
Protek Test & Measurement
45 Smith Street, Englewood, NJ 07631 Tel: 201-818-7711 Fax: 201-760-9888
Website: www.protektest.com Email: sales@protektest.com
Synthesized AM/FM
Signal Generator
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B1240
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1.
Power On/off.
% mod or Mod Frequency by a
preset value. In the second
function selects 3.5KHz or 22.5
KHz FM deviation.
2.
Increases5or decreases6the
7.
Displays the RF Output
Frequency.
8.
Function cursor keys
The outer 2 keys selected the
display to be changed; the inner 2
keys select the digit in the selected
display to be changed.
9.
The Delta Frequency is used to
generate a new output frequency
by adding or subtracting the delta
value to the current frequency.
10.
+/- keys determine if the Delta
frequency is added or subtracted to
the current frequency.
the second function selects the dB
units.
13.
These keys are used to store
preset RF output levels in memory
and recall them when needed.
Reference frequency will be used.
19.
Selects if data is being stored
in or recalled from the displayed
memory.
14.
When pressed, an External
15.
Modulation On or Off key.
16.
The Input connector for the
20.
Keypad
and Frequency Deviation in FM.
3.
Displays % Modulation in AM
4.
Selects 400Hz or 1KHz
Enter values for the RF Frequency,
output level, Modulation or memory
display when selected.
modulation frequencies. In the 2nd
function selects 75KHz deviation or
30% AM modulation.
memory address.
external modulation signal when
External Modulation is selected.
The Modulation output signal is
present at this connector when
internal modulation is selected.
input-modulating signal is kept at a
constant level. (0.9V to 1.1V)
on the front are dual function,
pressing this key enables the
second function.
21.
Rotary knob
Used also for entering Frequency,
output level, Modulation or memory
values in the selected display.
22.
Frequency step keys
5.
Increments or decrements the
6.
Displays the Memory Address.
17.
When this key is press, the
Increases5or decreases6the
frequency by a Preset value.
decrease6the output level by a
Preset value.
connector.
11.
Turns the output on or off. In
23.
These keys increase5or
18.
2nd Function Key, Some keys
12.
Displays the RF Output Level.
24.
'N' type RF 50Ω output
PANELS
STD FREQ
INPUT
REMOCON
DC 5V
STD FREQ
ADJ
Fuse
Power Cable
Connector
Line Selector
Protek Test & Measurement
45 Smith Street, Englewood, NJ 07631 Tel: 201-818-7711 Fax: 201-760-9888
Website: www.protektest.com Email: sales@protektest.com
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