| Electronic Test Instruments
- Signal / Sweep Generator |
| S-495T Wobbulator (Sweep Generator) |
Wobbulator / Sweep Generator meets
or exceeds requirements as per BIS:9782 Industrial Model, tested as
per BIS:11051 Methods of measurement
|
| Key Specifications |
| - 1 to 240MHz |
| - 65 Synthesized Markers |
| + 2 IF Derived Markers |
| + TV Chroma and Sound Markers |
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|
Characteristics |
| WOBBULATOR |
| RF Sweep - |
25MHz to 240MHz (IF+12 VHF+S1-S12)
Digital readout/indication of selected CH. 1-30MHz available
in one band. 1-240MHz available in one band. |
| Harmonics - |
>35dB down. |
| Radiation - |
Less than 2uV induced in a 25mm loop 25mm
away from any surface of the eqpt, with the RF ouput terminal
duly terminated. |
| Output Level - |
110db uV max into 75 ohms (316mV rms) |
| Sweep Width - |
+5MHz to +15MHz approx |
| Amplitude Accuracy - |
Within +1db at max output at CH4 |
| Attenuation - |
90 db total attenuation. 3 x 20db, 2 x 10db
accurate to within +1 db per step. 10 x 1db accurate to within
+0.25db/step |
| Overall Flatness - |
+1db |
| Flatness Between Markers - |
+0.25db between Vision and Sound Markers. |
| Sweep Linearity - |
10% |
| Hor Sweep Output - |
Triangular wave, 50Hz synchronised to mains
frequency, 8V p-p approx. |
| CH Selection - |
Front panel selection or via foot switch. |
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| MARKER GENERATOR
|
| RF Marker - |
65 Synthesized Pulse Markers. 5 Markers per
Ch (IF + Ch1 to Ch12) at Vision, Sound, Centre, Centre + 4.5MHz.
Markers accurate to +75KHz as per Table at left. |
| IF Derived Markers - |
2 brightup markers at the Vision and Sound
are generated from the IF sample derived from the tuner, accurate
to within + 75KHz. These markers are to be connected to the
z mod input of the display. |
| Chroma and Sound Markers - |
Xtal Markers (birdy) at 4.43 and 5.5MHz available
at the Chroma and Sound frequencies accurate to within +25KHz.
These markers are operable in the 1-30MHz sweep band. |
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| GENERAL |
|
| Power - |
240V +10%, 50Hz |
| Included Accessories - |
Operating Manual, cables |
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|
| Remarks: All accuracies specified
at 25deg C ambient, 230V mains, 50Hz with instrument grounded
- after warmup of 30 min. Specifications, illustrations and
price change priviliges reserved.
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