From 30+ year old warehouse stock, new in box:
The SW 503 is a TM 500-Series plug-in that provides a
swept frequency of
1MHz to 400 MHz with variable sweep
rate, width, and output level.
Crystal-controlled harmonic
oscillators provide comb markers with 1 MHz, 10
MHz, or
50 MHz separation, When used with a DC 502 Option 7
Digital
Counter, a frequency markerdot can be positioned
anywhere within the
frequency range of the SW 503
generator, and the frequency of the marker can
be read
directly on the counter. In the MANual sweep and CW
modes, the
continuous wave output of the generator can
be read to the counter
accuracy.
Center Frequency
Range: 1 MHz to 400 MHz or more.
Dial Accuracy:
Within 8 MHz (readout accuracy can be
increased by using the crystal markers
or comb, or the
dot marker when the SW S03 is used with a DC 502
Option 7
Digital Counter),
Drift: ~1OO kHz/5 minutes and ~2 MHz/8 hours after
a
30-minute warmup at a constant ambient temperature;
a 5-minute
stabilization period is required alter the
center frequency is changed,
Frequency Sweep
Maximum Width: Selectable; 400 MHz (+10% -
0%)
'00 MHz (±15%), or 10 MHz (±15%),
Variable: Permits reducing sweep
width from maximum
down to approximately 200 kHz (while in 10 MHz
maximum
width position)
Display linearity (VAR fully clOCkwise):
400 MHz position:
2%
100 MHz position: 3%
'0 MHz position: 3%
Signal Purity
Residual
FM: '0 kHz p-p or less In cw position.
Harmonic Related Spurii: Down 30 dB or
more from
'0 MHz to 400 MHz: 20 dB or more lrom 3 MHz to
'0 MHz; and,5 dB
or more from 1 MHz to 3 MHz.
Non-Harmonic Related Spurii: Down 40 dB or
more
from' MHz to 400 MHz fundamental frequency range.
Output Level
RF OUT: Maximum output is approximately
0.7 V rms.
This corresponds to
+10 dBm ±0.5 dB into 50 n. or
+57 dBmV ±0.5 dB into 75
n (Option
1).
Output level can be allenuated
50 dB in '0 dB steps, and
20 dB by
a variable allenuator. This
provides a range from +10 dBm
to
-60 dBm for the SW 503, or
+57 dBmV to -13 dBmV for
SW 503 Option
1.
Step Attenuator Absolute Accuracy
(with respect to
zero
attenuation): ±0.2 dB/10 dB to a
maximum of ±1.0 dB.