美国PTS公司（Programmed Test Source,Inc.）是国际知名的高性能频率合成器（频率综合器）的生产商，具有品质可靠、切换迅速、相位噪声低、产品线齐全等特点，是众多知名企业如A.D.，G.E.，Motoroal，Philips，Siemens，Toshiba等的合作伙伴。频率合成器是以一个精确度、稳定度极好的石英晶体震荡器作为基准频率，利用加、减、乘、除等基本运算技术，以获得与石英晶体震荡器同等精确度和稳定度的大量离散频率信号的设备。它广泛应用于通讯设备、雷达、导航、频率时间标准等各个技术领域。例如，在各种精密仪表中，频率合成器能提供高分辨率、低噪声（相位噪声）的信号，以适应各种精密测量的需要。

SPECIFICATIONS
Frequency
Range: specified 10 MHz decade, 0.1-100 MHz
(0.1-10, 10-20,...90-100 MHz)
Resolution: 1 Hz (optional, 0.1 Hz under remote-control only)
Accuracy same as frequency standard
Control: manual by 10-position dial;
remote by TTL-level parallel entry BCD or GPIB (optional)
Switching Time (to within 0.1 radian at new frequency)
1 MHz digit
non-phase-continuous:5 μseconds
phase-continuous: <1 μsecond transient, 1 μsecond delay
100 KHz - 1 Hz digits: <1μsecond transient, 1μsecond delay,
phase-continuous
Output Level: +3 to +13 dBm (1V max, 50 Ω)
Flatness: ±0.25 dB
Impedance: 50 Ω
Control: manual by front panel control; remote by analog
voltage
Spurious (at full power output, +13 dBm)
Outputs Discrete: -60 dBc
Harmonics: -35 dBc
Phase Noise: -70 dBc (0.5 Hz to 15 KHz) including effects of
internal standard
L (1Hz): 10 Hz/-110 dBc, 100 Hz/-122 dBc, 1 KHz/ -132 dBc,
10 KHz/ -133 dBc, 100 KHz/ -134 dBc
Noise Floor: -135 dBc/Hz
Frequency Internal: OCXO or TCXO
Standard 3 x 10-9/day 1 x 10-8/day
±1 x 10-8/0 - 50ºC ±1 x 10-6/0 - 50ºC
1 x 10-6/year 2 x 10-6/year
External: 10 MHz, 0.4-2.0 Vrms into 50 Ω;
5 MHz, 0.5-2.0 Vrms into 50 Ω
Aux. Output: 10.000 MHz, 0.4 Vrms into 50 Ω
(Note: internal or external standard required for operation)
General Operating Ambient: 10 - 55ºC, 95% R.H.
Power: 105 - 125V, 50 - 400 Hz, 30W (100, 220, 240V optional)
Dimensions: 19 x 3.5 x 17.5 inches (relay rack or bench cabinet)
Weight: 18 lbs
Optional Phase
Rotation: 0 - 360° in .225° steps

PTS x10 FREQUENCY SYNTHESIZER
• 10 MHz bandwidth, configured to cover any
specified decade 0.1 - 100 MHz (0.1-10,
10-20,...80-90, 90-100)
• 1 Hz resolution with DDS phase-continuous
switching
• fully programmable, BCD or GPIB, with
remote-only versions available.
NOTE:
PTS x10 shown for illustration in “M” and “R” cabinets.
Consult pages 28, 29 for full cabinet style listing.
Consult page 27 for cabinet mechanical specifications
The PTS x10 transfers the accuracy and stability of a
frequency standard (built-in or external) to any output
frequency within the configured 10 MHz decade
specified by the user at the time of order (e.g., 20-30
MHz, 30-40 MHz, etc.). Additional optional fieldinstallable
replacement modules allow easy