25
Subject to change without notice
S p e c i f i c a t i o n s
3 GHz RF-Synthesizer HM8135
Valid at 23 °C after a 30 minute warm-up period
Frequency
Range:
1 Hz bis 3 GHz
Resolution:
1 Hz
Settling time:
‹ 10 ms
Frequency Reference 10 MHz
Standard: TCXO
Temperature stability
(0 to 50°C):
≤
± 0,5 ppm
Aging:
≤
± 1 ppm/year
Option:
OCXO (Type HM8135X)
Temperature stability
(0 to 50 °C):
≤
± 1x10
-8
Aging:
≤
± 1x10
-9
/day
Internal reference output:
(rear panel)
Level:
TTL
External reference input:
(rear panel)
Level:
› 0 dBm
Frequency:
10 MHz ± 20 ppm
Spectral purity (without modulation)
Harmonics:
≤
-35 dBc (typ.)
Non-harmonics:
≤
-50 dBc (› 15 kHz from carrier)
Sub-harmonics:
≤
-50 dBc (typ.)
Phase noise:
(at 20 kHz from carrier)
f ‹ 16 MHz:
≤
-120 dBc/Hz
16 MHz
≤
f ‹ 250 MHz:
≤
-95 dBc/Hz
250 MHz
≤
f ‹ 500 MHz:
≤
-105 dBc/Hz
500 MHz
≤
f ‹ 1000 MHz:
≤
-100 dBc/Hz
1 GHz
≤
f ‹ 2 GHz:
≤
-95 dBc/Hz
2 GHz
≤
f ‹ 3 GHz:
≤
-90 dBc/Hz
Residual FM:
typ. ‹ 4 Hz;
≤
6.5 Hz (in 0.3 – 3 kHz bandwidth)
Residual AM:
typ. ‹ 0.06 % (in 0.03 – 20 kHz bandwidth)
Output level
Range:
-135 to +13 dBm
Resolution:
0.1 dB
Precision f ‹ 1.5 GHz; level › -120 dBm
for level › -57 dBm:
≤
± 0.5 dB
for level ‹ -57 dBm:
≤
± (0.5 dB + (0.2 x (-57 dBm – level))/10)
Precision f › 1.5 GHz; level › -120 dBm
for level › -57 dBm:
≤
± 0.7 dB
for level ‹ -57 dBm:
≤
± (0.7 dB + (0.5 x (-57 dBm – level)) / 10)
Impedance:
50 Ω
V.S.W.R.:
f
≤
1 GHz:
≤
1.5
f › 1 GHz:
≤
2.5
Modulation sources
Internal:
10 Hz – 200 kHz sine wave
10 Hz – 20 kHz square wave, triangle, sawtooth
Resolution:
10 Hz
External:
(input on front panel)
Impedance:
10 kΩ II 50 pf
Input level:
2 V
pp
for full scale
Coupling:
AC or DC
Output:
front panel
Level
2 V
pp
Impedance:
1 kΩ
Amplitude modulation (Level
≤
+7 dBm)
Source:
nternal or external
AM-depth:
0 to 100 %
Resolution:
0.1 %
Accessories supplied:
Operator’s manual, power cable
Optional accessories:
HZ33/HZ34 Test Cable 50 Ω (BNC-BNC), HZ21 Adapter plug,
HZ42 19” Rackmount kit 2RU, HO870 USB Interface, HO880 IEEE-488 (GPIB)
Interface, HO890 RS-232 Interface, OCXO (Type HM8135X)
(Typical phase noise at 1 GHz)
Accuracy:
± 4 % displayed rate ± 0.5 %
(AM-depth
≤
80 %, fmod
≤
50 kHz)
Ext. frequency resp. (to - 1dB):
10 Hz to 100 kHz for AC
Distortion:
‹ 2 % (AM-depth
≤
60 %, fmod
≤
1 kHz)
‹ 6 % (AM-depth
≤
80 %, fmod ‹ 20 kHz)
Frequency modulation
Source:
internal or external
Deviation:
± 200 Hz to 400 kHz
(depending on frequency band)
Resolution:
100 Hz
Accuracy:
± 3% + residual FM (fmod
≤
5 kHz)
± 7% + residual FM (5 kHz ‹ fmod ‹ 100 kHz)
Ext. frequency response: (to -1dB):
DC coupling:
0 to 100 kHz
AC coupling:
100 Hz to 100 kHz
Distortion:
‹ 1 % for deviation
≥
50 kHz at 1 kHz
‹ 3 % for deviation
≥
10 kHz
Phase modulation
Source:
internal or external
Deviation:
‹ 16 MHz:
0 to 3.14 rad
› 16 MHz:
0 to 10 rad
Resolution:
0.01 rad
Accuracy:
± 5 % to 1 kHz + residual PM
Ext. frequency response (to -1dB):
DC coupling:
0 to 100 kHz
AC coupling:
100 Hz to 100 kHz
Distortion:
‹ 3 % for fmod = 1 kHz and deviation = 10 rad
FSK modulation
Range (F0 – F1):
16 MHz to 3 GHz
Mode:
2 FSK levels
Data source:
external
Max. rate:
10 kbit/s
Shift (F1 – F0):
0 to 10 MHz
Resolution:
100 Hz
Accuracy:
see under FM
PSK modulation
Mode:
2 PSK levels
Data source:
external
Max. rate:
10 kbit/s
Shift (Ph1 – Ph0):
‹ 16 MHz:
0 to ± 3.14 rad
› 16 MHz:
0 to ± 10 rad
Resolution:
0.01 rad
Accuracy:
see under PM
Pulse modulation
Source:
external (rear panel)
Dynamic range:
f ‹ 2 GHz:
› 80 dB
f › 2 GHz:
› 55 dB
Rise/fall times:
‹ 50 ns (typ. ‹ 10 ns)
Delay:
‹ 100 ns
Max. frequency:
2.5 MHz (typ. 5 MHz)
Input level:
TTL
Sweep mode
Range:
1 MHz to 3000 MHz
Depth:
500 Hz to 2999 MHz
Sweep time:
20 ms to 5 s
Trigger:
internal
Protective functions
The synthesizer is protected against reverse power applied on RF output
up to 1 W for a 50 Ω source and against any DC source up to ± 7 V. The
protection disconnects the output until manually rearmed by operator.
Miscellaneous
Interfaces:
RS-232 (standard), IEEE-488 (optional),
USB (optional)
Configuration memories:
10
Safety class:
Safety Class I (EN61010-1)
Power supply:
115/230V ± 10%, 50/60Hz
Power consumption:
approx. 40 VA
Operating temperature:
0 to + 50 °C
Max. relative humidity:
10 to 90 % (without condensation)
Dimensions (W x H x D):
285 x 75 x 365 mm
Weight:
approx. 5 kg