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Signal Generators

S-990A AM/FM synthesized signal generator with built-in sweep marker generator
  • AM/FM 100KHz to 300MHz
  • Sweep/marker 400KHz to 300MHz
S-4050A Test Station (Multifunction Signal Generator)
  • AM/FM - 0.1 to 110 MHz
  • Freq counter-1Hz to 110MHz
  • Function generator-Hz to 1MHz
  • Power supply-0-30V 1A
S-1125 AM/FM Synthesized Signal Generator
  • 400KHz to 150MHz
  • Synthesized with keypad kntry.
  • 20 spot freq memory user programmable.
S-945 AM/FM (Stereo) synthesized signal generator.
  • 100KHz to 260MHz.
  • Synthesized with keypad entry.
S-900A AM/FM Signal Generator with Frequency Counter
  • 100KHz-55MHz.
  • Frequency counter, 55MHz.
  • TTL output.
S-909 AM/FM signal generator counter triple power supply function gen. "Low Cost"
  • 100KHz-72MHz
  • 100mV p-p into 75 ohms

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  • Frequency Range: 100KHz to 300MHz
  • Sweep / Marker Generator: 400KHz to 300MHz
  • 0.1dB resolution: 1KHz Marker resolution
  • 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-990 is a combination of FM(Stereo)/AM synthesized signal generator and a sweep marker generator. It is a microprocessor based equipment using synthesized techniques and covering the frequency range 100KHz to 300MHz 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. Sweep is available over the 400KHz to 300MHz range. Marker is intensified pulse type, with a fine resolution of 1KHz. S-990A is suitable for measurements on receivers, amplifiers, antenna, filter networks, etc. The equipment is rugged and simple to use. S-990A offers the unique advantage of aligning a receiver and measuring its sensitivity, all in one equipment. FREQUENCY:
  • Freq Range: 100KHz to 300MHz in one band.
  • Sweep Range: 400KHz to 300MHz in one band.
  • Display: 6 digit LED display in MHz with a resolution of 1KHz.
  • Stability: 1ppm/deg C from 0-40 deg C.
  • Frequency synthesized frequency selection: Keypad entry with resolution of 1KHz to 250KHz per step. FM/AM/Sweep selection: keypad entry
OUTPUT:
  • Range- 200mV p-p Impedance - 50 ohms
  • Accuracy - +1dB from 10MHz to 100MHz and +2dB above 100MHz and below 10MHz at 200mV output
  • Attenuation - 100dB total attenuation. 4x20dB, 1x10dB accurate to within +1dB/step. 10x1dB accurate to within 0.25dB/step, upto 260MHz
  • Leakage - Less than 5uV induced in a 25mm loop at 25mm away from surface of the instrument.

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  • 400KHz to 150MHz
  • Synthesized with keypad entry
  • 20 memory locations
  • AM modulation 30%
  • FM modulation - 22.5KHz
S-1125 FM(Stereo)/AM signal generator is a microprocessor based equipment using synthesized techniques and covering the frequency ranges 400KHz to 30MHz (AM/FM/CW) and 87MHz to 150MHz (FM/CW). The frequency selection is via keypad entry and the frequency is displayed on 6 digit LED displays. 20 frequencies can be programmed by the user. At these frequencies, at the press of a button; you can select AM spot, FM spot or CW. Battery backup is provided so that the programmed spot frequencies will be ready for use every time the equipment is switched on. Function Generator
  • Freq Range- 400KHz to 150MHz in one band.
  • Programmable Freq- 20 memory locations.
  • Display-6 digit LED display in MHz with a resolution of 1KHz.
  • Accuracy-1x10-5 (10ppm) over the full frequency range.
  • Freq/Prog Selection-keypad entry.
  • FM/AM/CW-keypad entry.
Spectral Purity Harmonics-Less than - 30dBc Modulationam
  • Internal Source-1KHz +10% sine wave.
  • Depth-30%
  • Accuracy-+5%
  • Distortion-Less than 5%
  • Freq Range-400KHz to 30MHz.
FM (Mono)
  • Internal Mod-1KHz +10%
  • Peak Deviation-22.5KHz peak
  • Accuracy-+ 3KHz
  • Distortion-+3% or better
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-40dB or more
General
  • Power - 230V +10%, 50Hz.
  • Accessories - operating manual, cable.
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.
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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%

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  • 100KHz-55MHz use able upto 110MHz(2nd Harmonic)
  • Frequency Counter, 55MHz
  • TTL Output-Low radiation
S-900 AM/FM signal generator is a low cost equipment ideally suited for education and service applications, it comprises of the following. AM/FM signal generator, which generates frequencies from 100KHz to 55MHz in 6 bands. The second harmonic of the last band generates frequencies upto 110MHz. Frequency counter which measures frequency of the AM/FM and external input. TTL output is available at the frequency readout on the counter. TTL output can be used to drive various circuits during experimentation. AM Oscillator
  • 100KHz-300KHz
  • 300KHz-1MHz
  • 1MHz-3MHz
  • 3MHz-10MHz
  • 10MHz-25MHz
  • 25MHz-55MHz
continuously variable over the whole range with a coarse and fine variable. Modulation frequency 400Hz approx and modulation depth a) Internal Modulation 30% (electronically adjusted b) External Modulation-adjustable. Output amplitude 100mV p-p +2dB into 75 ohms, corresponding to a carrier voltage of 27mV rms approx FM Oscillator
  • 3MHz-10MHz
  • 10MHz-25MHz
  • 25MHz-55MHz
  • 80MHz-110MHz (2nd harmonic of band 6)
continuously variable over the whole range with a coarse and fine variable. Modulation Frequency 400 Hz approx Frequency Deviation a) Internal-adjustable 0-22.5KHz from 5MHz to 55MHz b) External-adjustable 0-40KHz from 3MHz to 55MHz for Audio input frequency range 300Hz to 5KHz and a max input of 8V p-p c) Output Amplitude 75mV p-p +2dB into 75 ohms Attenuation - a) step attenuator 5 steps (20dB) each d) Variable attenuator Frequency Counter
  • Readout 5 digit LED display.
  • Range selection MHz/KHz/Hz.
  • Time base 10MHz Xtal derived.
  • Source Selection a) Internal AM b) Internal FM c) External frequency
  • External input 10Hz to 55MHz.
  • Sensitivity 20mV rms at 1KHz.

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The S-909 is a low cost signal gen. covering the 0.1 to 72MHz freq in 6 bands, upto 110MHz (2nd harmonic). The freq counter measures int/ext freq upto 72MHz. The triple power supply has +12 V floating. Also +5 V 1AMP is provided. The function gen takes care of all your low freq needs. AM/FM Signal Generator
  • Frequency 100KHz-72MHz in 6 bands.
  • Frequency selection coarse and fine.
  • Output 100mV p-p into 75 ohms.
  • Attenuator 5 x 20dB steps + fine. AM Modulation 30% int. ext variable.
  • FM Modulation Int / Ext 0-22.5KHz var.
  • Function generator 1Hz to 100 KHz.
  • Power supply +12V, -12V(.2A) + 5V (1A). Counter 1Hz - 72 MHz. 20 mV at 1 MHz. 5 digit display.

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Moazzam Loynmoon (Proprietor)
No. 201/202, Champaklal Industrial Estate, No. 105, Sion East
Mumbai - 400022
Maharashtra, India
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