SPECIFICATIONS

Frequency

Range:

1.000 000 0 MHz to 249.999 999 9 MHz

Resolution:

0.1 Hz to 100 KHz, optional in decades

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）

100 MHz - 10 MHz digit:

20 μseconds

1 MHz - 0.1 Hz digit:

5 μseconds

Output

Level:

+ 3 to + 13 dBm （1V max, 50 W ）, metered in dBm ａnd volts （rms）

Flatness:

± 0.5 dB

Impedance:

50W 

Control:

manual by front panel control; remote by analog voltage

Spurious

（at full power output, +13 dBm）

Outputs

Discrete:

-70 dBc

Harmonics:

-30 dBc at full output（-40 dBc at lower level）

Phase Noise:

-63 dBc （0.5 Hz to 15 KHz） including effects of internal standard

￡ （1Hz）:

100 Hz/ -105 dBc, 1 KHz/ -115 dBc, 10 KHz/ -123 dBc, 100 KHz/ -127 dBc

Noise Floor:

-135 dBc/Hz

Frequency

Internal:

OCXO

or

TCXO

Standard

3x10^-9/day

1x10^-8/day

± 1x10^-8/0-50° C

± 1x10^-6/0-50° C

1x10^-6/year

2x10^-6/year

External Drive:

10 MHz, 0.4 Vrms into 300 W ; 5 MHz, 0.5 Vrms into 300 W 

Aux. Output:

10.000 MHz, 0.4 Vrms into 50 W 

（Note: internal or external standard required for operation）

General

Operating Ambient:

0-55° C, 95% R.H.

Power:

105-125, 50-400 Hz, 45W （100, 220, 240V optional）

Dimensions:

19 x 5.25 x 18 inches （relay rack or bench cabinet）

Weight:

35 lbs.

For units equipped with a DDS-TLU option, specifications are modified as follows:

DDS Option:

H

K

Phase-Continuous

100 KHz thru 0.1 Hz digits

10 KHz thru 0.1 Hz digits

Switching Range

（~1 MHz bandwidth）

（~100 KHz bandwidth）

Frequency Resolution:

0.1 Hz

0.1 Hz

Optional Phase Rotation:

0 - 360° in .36° steps

N/A

Switching Time

（within phase-continuous range） < 1 μs transient, 2 μs delay

Spurious Discrete:

-65 dBc

-70 dBc

Outputs Phase Noise:

-63 dBc

-63 dBc