Pacific Measurements 1038

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100 kHz to 18.5 GHz network analyzer

Produced from (?) to (?)

Manuals

Wavetek PMI 1038 System Brochure with Specs (PDF), courtesy of Sphere Research
PMI 1038 Swept Measurement System Brochure 1977 (PDF), courtesy of Helmut Singer Elektronik

(All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Pacific Measurements 1038 is a 1 or 2 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.

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 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.

Key Specifications

	— H/V System —
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 )
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
Power	−50 dBm to +10 dBm
Dynamic Range	60 dB (Reference Channel: 40 dB)
Reading	Insertion Loss/Gain and Return Loss, 0.02 dB resolution
Noise Floor	−70 dB
Power	Approx. 100 VA @ 50 − 440 Hz; 100, 120, 240 V_AC ±10%
Dimensions	benchtop (H x W x D) 381 x 216 x 483 mm (15 x 8.5 x 19 in.); rackmount (H x W x D) 178 x 483 x 483 mm (7 x 19 x 19 in.)
Weight	18.2 kg (40 lbs) - vertical plug-in 2.3 kg (5 lbs), horizontal plug-in 2 kg (4.4 lbs)
	— 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 APC3.5 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	5% from 26.5 to 40 GHz
Flatness	±2.0 dB from 26.5 to 40 GHz
Temperature	0° to 50°C operating, −50° to +65°C non-operating
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
Cable Length	1.5 m (5 ft)
Weight	Approx. 230 g (8 oz)