SW503

Manuals – Specifications – Links – Pictures

The Tektronix SW503 is a sweep generator plug-in for the TM500 system.

Key Specifications

Frequency range	1 to 400 MHz
Sweep width	200 kHz to 400 MHz
Sweep time	10 ms to 100 s, decade steps plus vernier
Output	−40 to +10 dBm into 50 Ω
Horizontal output	0.5 Vp-p
Fixed markers	frequency comb with 1, 10, or 50 MHz base frequency
Variable marker	1 to 400 MHz, digital readout on a DC502 Opt.07 counter
Features	Amplitude control input (0 – 10 V) Frequency control input (0 – 10 V) Sweep trigger input (10 V pulse ≥1 μs)
Options	Opt. 01 – 75 Ω output impedance

Rear Interface

Connector Pin	Signal
28B	Y axis output (common on 28A)
27B	X axis output (common on 27A)
24B	Trigger input (common on 25B)
21B	Amplitude control input (0 – 10 V), common on 22B
20B	Frequency control input (0 – 10 V), common on 22B
18B	Start Count (0/+5 V; positive pulse to trigger the counter)
18A	Gate (0/+5 V; negative gate from counter)
17B	Counter Identify (grounded when counter is installed)
16B	Phase Lock Logic (+5 V: 100 kHz resolution; 0 V: 10 Hz resolution)
15B	CW Mode Logic (+5 V: dot marker function; 0 V: normal counter function)
14B	Sweep Generator Identify (grounded when SW503 is installed)

Pictures

External

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  SW503 in TM515 with other TM500 gear

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  SW503B catalog picture

Internal

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Better pictures needed - please contribute

Components

Some Parts Used in the SW503

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