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1MHz至620MHz的完全獨立雙通道輸出
＋3至＋13dBm的輸出水平
標準的DDS相位連續切換功能
卓越的相位噪聲和亂真輸出指標
3－20μs的切換時間
完全的BCD或GPIB可編程遙控
低功耗，高穩定性，三年質保

SPECIFICATIONS (apply to both independently programmable output channels)
Number of channels 2 fully independent output channels
Frequency
Range: 1.000 000 0 to 619.999 999 8 MHz
Resolution: 0.1 Hz, 1-310 MHz; 0.2 Hz, 310-620 MHz
Accuracy same as frequency standard
Control: remote by TTL-level parallel-entry BCD or GPIB (optional)
Switching Time (to within 0.1 radian at new frequency)
100 MHz -10 MHz digit: 20 μseconds
1 MHz digit: 5 μseconds
100 KHz - 0.1 Hz digit: 1 μsecond transient, 2 μsecond delay
Phase-Continuous 100 KHz through 0.1 Hz digits
Switching Range: (~1 MHz bandwidth)
Output Level: +3 to +13 dBm (1V max, 50 Ω)
Flatness: ±0.5 dB
Impedance: 50 Ω
Control: preset and remote by analog voltage
Spurious (at full power output, +13 dBm)
Outputs Discrete: -70 dBc 1-310 MHz
-65 dBc 310-620 MHz (-55 dBc, 1/2 & 3/2 fout)
Harmonics: -30 dBc at full power output,(-40 dBc at lower level)
Phase Noise: -63 dBc (0.5 Hz to 15 KHz) including effects of
internal standard
L (1Hz): 100 Hz/-100 dBc, 1 KHz/ -110 dBc, 10 KHz/ -120 dBc,
100 KHz/ -125 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 300 Ω;
5 MHz, 0.5-2.0 Vrms into 300 Ω
Aux. Output: 10.000 MHz, 0.4 Vrms into 50 Ω
(Note: internal or external standard required for operation)
General Operating Ambient: 0 - 50°C, 95% R.H.
Power: 110 - 125V, 50 - 400 Hz, 80W (100, 220, 240V optional)
Dimensions: 19 x 5.25 x 18 inches (relay rack or bench cabinet)
Weight: 40 lbs
Optional Phase
Rotation: 0 - 360° in .225° steps (in .450° steps, 310 - 620 MHz)

美***PTS公司（Programmed Test Source,Inc.）是***際知名的高性能頻率合成器（頻率綜合器）的生產商，具有品質可靠、切換迅速、相位噪聲低、產品線齊全等特點，是眾多知名企業如A.D.，G.E.，Motoroal，Philips，Siemens，Toshiba等的合作伙伴。頻率合成器是以***個精確度、穩定度極好的石英晶體震蕩器作為基準頻率，利用加、減、乘、除等基本運算技術，以獲得與石英晶體震蕩器同等精確度和穩定度的大量離散頻率信號的設備。它廣泛應用于通訊設備、雷達、導航、頻率時間標準等各個技術領域。例如，在各種精密儀表中，頻率合成器能提供高分辨率、低噪聲（相位噪聲）的信號，以適應各種精密測量的需要。