Pacific Measurements 1038

The Pacific Measurements 1038 is a single- or dual-channel scalar network analyzer, some models of which incorporate a Tektronix 5000-series display unit − a D10 long-persistance display (P-7 phosphor) or a D11 split-screen storage display.

18.5 GHz network analyzer

Produced from 1974 to (?)

Manuals

(All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The PM1038-D14 has a display unit with digital storage. From manual photos and diagrams, the D14 would appear not to be a Tek OEM unit (see also Introduction to the 5000-Series Oscilloscopes regarding 5114/D14).

The PM1038 had an optional GPIB interface and was available in benchtop or rackmount configurations.

Options:

Horizontal plug-ins: H10 (sweep drive), H11 (sweep Drive and memory address circuits), H12 (sweep drive and ratio channel), H13 (sweep drive, memory address circuits and ratio channel) and K10/K11 (replaces H11 and provides amplitude sweep).
Vertical plug-ins: V10 (log amp and signal conditioning), V11 (log amp, signal conditioning and 256 point memory), V12 (log amp, signal conditioning and 1024 point memory), V13 (log amp, signal conditioning, recording of two calibration curves and 1024 point memory) and V20 (linear amp, 1024 point memory and for use in conjunction with Model 1018B power meter).
N10 plug-in (dual channel network analyzer)
NS20 plug-in (dual channel network analyzer) with optional NS201 (2 to 18.5 GHz RF source)
C10 plug-in calibration fixture and extender kit for direct calibration and check-out of the D14/D14A Mainframe. It has extension cables to permit calibration and maintenance of the H/V system plug-ins
Power input calibrator unit (detector simulator - P/N 15484) will act as a "standard" detector to furnish accurate voltages to the H/V system when it is desired to calibrate the amplitude correction circuitry

Pacific Measurements later became part of Wavetek as Wavetek Pacific Measurements and later as Wavetek Microwave.

Key Specifications

	— H/V System —
Frequency range	100 kHz to 18.5 GHz ; with single diode (P/N 12685, 12882, 12883, 13161) detector, 100 kHz to 1 GHz or (P/N 13160) 2 GHz ; with single diode (P/N 15272) or balanced (P/N 15285) detector, 1 MHz to 26.5 GHz ; Wavetek Pacific Measurements waveguide detector (P/N 15882), 26.5 GHz to 40.0 GHz ; other waveguide manufacturers, up to 110 GHz
Input power	−50 dBm to +10 dBm
Dynamic range	60 dB (Reference Channel: 40 dB)
Offset range	±99.9 dB, 3 digits resolution, accuracy ±0.02 dB/10 dB ±0.05 dB
Drift	@ 0 dBm, <0.01 dB/°C (+15° to +45°C ); @ −40 dBm, <0.5 dB/24 Hrs at constant temperature )
Reading	Insertion Loss/Gain and Return Loss, 0.02 dB resolution
Noise floor	−70 dB
	— Power detectors (P/Ns 15272, 13782 and 13783 unless noted) —
Input impedance	50 Ω nominal; 75 Ω (P/N 12685, 12882, 13161)
Input power	max. +23 dBm (200 mV) peak or average
Return loss	>20.8 dB, SWR <1.20 from 100 kHz to 1 GHz (P/N 12685, 12882, 12883, 13160, 13161); >25.0 dB, SWR <1.12 from 1 MHz to 1 GHz; >18.0 dB, SWR <1.29 from 2 GHz to 12.4 GHz; >14.0 dB, SWR <1.50 up to 26.5 GHz
Accuracy	3% to 18.5 GHz and 5% to 26.5 GHz
Flatness	±0.5 dB to 18.5 GHz (P/N 15272); ±1.0 dB 18.5 GHz to 26.5 GHz (P/N 15272) ; ±1.0 dB to 18.5 GHz (P/N 13782) ; ±1.0 dB to 18.5 GHz (P/N 13783; ±2.0 dB with type N or APC7 connectors to 18 GHz, ±2.0 dB to 26.5 GHz with 3.5 mm connectors
	— Power detector P/N 15882 —
Input power	max. +20 dBm (100 mV) peak or average
Return loss	>10 dB, SWR <1.92 from 26.5 to 40 GHz
Accuracy	0.2 dB to 2 dB from 30 MHz to 26.5 GHz, 0.5 dB to 2 dB from 26.5 GHz to 40 GHz
Flatness	±2.0 dB from 26.5 to 40 GHz