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1MHz至620MHz的完全獨(dú)立雙通道輸出
＋3至＋13dBm的輸出水平
標(biāo)準(zhǔn)的DDS相位連續(xù)切換功能
卓越的相位噪聲和亂真輸出指標(biāo)
3－20μs的切換時(shí)間
完全的BCD或GPIB可編程遙控
低功耗，高穩(wěn)定性，三年質(zhì)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(chǎn)商，具有品質(zhì)可靠、切換迅速、相位噪聲低、產(chǎn)品線齊全等特點(diǎn)，是眾多知名企業(yè)如A.D.，G.E.，Motoroal，Philips，Siemens，Toshiba等的合作伙伴。頻率合成器是以***個(gè)精確度、穩(wěn)定度極好的石英晶體震蕩器作為基準(zhǔn)頻率，利用加、減、乘、除等基本運(yùn)算技術(shù)，以獲得與石英晶體震蕩器同等精確度和穩(wěn)定度的大量離散頻率信號的設(shè)備。它廣泛應(yīng)用于通訊設(shè)備、雷達(dá)、導(dǎo)航、頻率時(shí)間標(biāo)準(zhǔn)等各個(gè)技術(shù)領(lǐng)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(yīng)各種精密測量的需要。