Some of my bench test
Rhodes & Schwarz CMU200 – working
Comprehensive spectrum analyser 10Mhz to 2.7GHz. The RF gen covers 100kHz – 2.7GHz (0.1Hz steps, -130dBm to -27dBm up to 2.2GHz, -130dBm to -33dBm between 2.2Ghz and 2.7GHz), the power meter covers the same range in wideband mode and 10Mhz to 2.7GHz in selective mode, and measures depending on the input and type of signal from -80dBm to +53dBm (calibrated, not unlevelled). The SA goes from 10Mhz to 2.7GHz, the span from zero to full
IFR 500A coms test set – working
2 uV receiver for AM, FM and SSB. 10 Hz to 9999.9 Hz variable audio generator and audio frequency error meter. 1 kHz audio generator. Frequency error meter with 1 Hz resolution. Peak/Average watt meter. Deviation to 60 kHz. SINAD/ Dist. Meter. 0.2 ppm TCXO. Mic input. Audio demodulator output. RF Signal Generator Frequency Range: 250 kHz to 999.9999 MHz Resolution: 100 Hz. Variable Generate: Continuous tuning ± 10 kHz from selected frequency. Residual FM: < 100 Hz peak RMS. RF Output Power: -127 dBm to -20 dBm (10 dB steps with 11 dB range continuous Vernier). RF Output Accuracy: ± 3 dB. Audio Generator Tone Output Level: 0 to 2.5 VRMS into 150 ohm load.
Schlumberger stabilock 4031 – poorly and under repair
Owned from new (1993) and used in my PMR business. under repair at the moment after 30 year required all the leaking electrolytic caps – have now replaced over 100 caps. Further on-going repairs. Partially working.
update 27/4/2024: second unit acquired for parts, now have almost working set.
Schlumberger stabilock 4015 – poorly and under repair
0,4 to 1 GHz, Spectrum Analyser, 100Hz resolution test, RX modulation mode : FM/AM/PHASE, TX modulation measurement, AF generators, AF voltmeter, Counter, Distortion & SINAD meter, Oscilloscope. Recently acquired – like the 4031 has leaking electrolytic caps. replaced most caps. Further on-going repairs. Partially working.
Marconi 2955A Radio Communications Test Set – poorly and under repair
The ubiquitous Marconi 2955A Radio Communications Test Set provides comprehensive testing facilities for AM/FM/0M transceivers to 1000MHz. Single key mode selection for transmitter, receiver and duplex testing. Full duplex facility tests radio telephones and cross-band repeaters. Menu-driven CRT display with store and recall for standard settings. Built in self test and operator guide. Recently acquired – Caveat emptor, I took the seller at his word, self test passed but when returned home unit turned out to have numerous faults – currently under repair !!
update 27/4/2024 : replaced 10MHz oxco, and 1 Om345 amp. now passes all self tests.
Hewlett Packard HP54645A Storage scope – working
Dual-channel 100-MHz scope with 200 MSa/s
1 MB of memory per channel
Deep memory capture and a responsive display
Simple, easy-to-use controls
Glitch triggering
2ns/div sweep speed
200 MSa/s acquisition.
Rigol DS2102A multi-functional digital oscilloscope. – purchased new.
The Rigol DS2102A is a 100MHz, 2CH, 2GSa/s multi-functional high performance digital oscilloscope. Standard features include – Sensitivity down to 500μV/div, record, replay & analysis functions, selectable 50Ω input impedance and 8″ WVGA display with 256 grading levels. Furthermore, it possesses a variety of trigger functions, decoding functions, connectivity options, mathematical operations including FFT, fitted with RS232, I2C & SPI bus decoding functions, CAN bus trigger & decoding functions and memory depth to 56Mpts.