| Electronic Test Instruments
- Signal / Sweep Generator |
| S-945 AM/FM (Stereo) Synthesized Signal
Generator |
|
- Frequency Range
100KHz to 260MHz |
| - Synthesized with Keypad Entry |
- AM Modulation
0-99% in 1% steps |
- FM Modulation
0-99KHz in 1KHz steps |
- FM Stereo Modulation
Left/Right channel On/Off |
|
S-945 FM/AM
Signal Generator is a microprocessor based equipment using
synthesized techniques and covering the frequency range 100KHz to
260MHz in a single band.
The frequency selection is via keypad entry and the frequency
is displayed on 6 digit LED displays. The frequency can be increased/decreased
in 1KHz steps using the up/down keys.
The RF Signal is clean and the output is electronically levelled.
S-945 is suitable for measurements on receivers, amplifiers, antenna,
filter networks, etc. The equipment is rugged and simple to use.
|
|
Characteristics |
FUNCTION GENERATOR |
| Range- |
100KHz to 260MHz in one band` |
| Display - |
6 digit LED display in MHz with a resolution
of 1KHz |
| Stability - |
Frequency synthesized, Xtal derived. |
| Frequency Selection - |
Keypad Entry |
| |
|
| SPECTRAL PURITY |
|
| Harmonics - |
Less than - 30dBc |
| AM on CW - |
Less than -46dBc |
| AM on FM - |
less than 5% upto 30KHz int FM |
| FM on AM - |
Less than 300Hz at 30% int AM |
| |
|
| OUTPUT |
| Range - |
110dBm to -10dBm into 50 ohms and -130dBm
with 20dB pad |
| Impedance - |
50 ohms |
| Accuracy - |
+1dB from 10MHz to 100MHz and +2dB above
100MHz and below 10MHz at -10dBm output |
| Leakage - |
Less than 1uV induced in a 25mm loop at 2
5mm away from surface of the instrument. |
| |
|
| AMPLITUDE MODULATION |
| Internal Source - |
1KHz +10% sinewave |
| Output - |
1KHz 1V rms. |
| Depth - |
0 - 99% |
| Accuracy - |
+5% of the reading +5% FSD or better upto
80%. |
| Distortion - |
Less than 5% at 30% depth or better |
| External Frequency Response - |
Flat within -3dB from 20Hz to 20KHz with
respect to 1KHz or better
|
| |
|
| FREQUENCY MODULATION |
| Internal Source - |
1KHz +10% |
| Peak Deviation - |
0-99KHz peak |
| Accuracy - |
+15% FSD or better, not exceeding +20% |
| Distortion - |
+3% or better at max deviation |
| Ext Frequency Response - |
Flat within -3dB from 50Hz to 20KHz or better
with respect to 1KHz |
| |
|
| FM (Stereo) |
|
| Internal Mod - |
1KHz +10%, Left, Right Ch On/Off provided |
| Peak Deviation - |
75KHz peak |
| |
|
| Pilot Signal |
|
| Freq Deviation - |
7.5KHz +1KHz |
| Frequency - |
19KHz +0.1% |
| Seperation - |
30dB or more |
| |
|
| GENERAL |
|
| Power - |
230V +10%, 50Hz |
| Accessories - |
Operating Manual, BNC-BNC 50 ohms |
Remarks: All accuracies specified at 25deg C ambient, 230V mains,
50Hz with eqpt grounded - after warmup of 30 min. Specs, illustrations
and price change privileges reserved. |
|