Device Characteristics
All specifications valid into 50Ω load |
| Models | |
| R&S®HMF2525 | 1 channel,
frequency range to 25MHz |
| R&S®HMF2550 | 1 channel,
frequency range to 50MHz |
| Waveforms | |
| standard | sine, square, pulse, ramp, triangle |
| arbitrary waveforms | up to 256kSa |
| predefined waveforms | sine, square (50%), ramp (positive/negative), triangle (50%),
oise (white/pink), cardinal sine, exponential (rise/fall) |
| Operation modes | continuous, modulate, sweep, burst |
| Modulation types | AM, FM, PM, FSK, PWM |
| Temperature stability | 1x 10-6 (+18°C to +28°C) |
| Aging (after one year) | ±1x 10-6 (+25°C) |
| Waveform Characteristics |
| Sine |
| Frequency range | |
| R&S®HMF2525 | 10µHz to 25MHz |
| R&S®HMF2550 | 10µHz to 50MHz |
| Amplitude flatness | |
| up to 10MHz | ±0.15dB |
| 10MHz to 25MHz | ±0.2dB |
| above 25MHz | ±0.4dB |
| Harmonic distortion | |
| up to 100kHz | < -70dBc |
| 100kHz to 10MHz | < -55dBc |
| 10MHz to 25MHz | < -40dBc |
| above 25MHz | < -37dBc |
| Total harmonic distortion (THD) up to 100kHz | 0.04% (typ.) |
| Non-harmonic spurious | |
| up to 1MHz | < -70dBc |
| above 1MHz | < -70dBc, increasing +6dB / decade |
| Phase noise (SSB) | |
| 10kHz Offset | -115dBc / Hz (typ.) |
| Square |
| Frequency range | |
| R&S®HMF2525 | 10µHz to 25MHz |
| R&S®HMF2550 | 10µHz to 50MHz |
| Rise and fall times | 8ns, fixed |
| Overshoot | < 3% (typ.) |
| Symmetry | duty cycle: 50%
accuracy: ±1% + 5ns |
| Jitter | <1nsrms (typ.) |
| Pulse |
| Frequency range | |
| R&S®HMF2525 | 100µHz to 12.5MHz |
| R&S®HMF2550 | 100µHz to 25MHz |
| Rise and fall times | 8ns to 500ns, variable |
| Overshoot | < 3% (typ.) |
| Duty cycle | 0.01% to 99.99% |
| Pulse width | min. 15ns, resolution 5ns |
| Jitter | < 500psrms (typ.) |
| Ramp and Triangle |
| Frequency range | |
| R&S®HMF2525 | 10µHz to 5MHz |
| R&S®HMF2550 | 10µHz to 10MHz |
| Ramp symmetry | 0% to 100%, resolution 0.1%
(0% ≙ negative ramp,
100% ≙ positive ramp, 50% ≙ triangle) |
| Linearity | |
| up to 250kHz | < 0.1% (typ.) |
| above 250kHz | < 2% (typ.) |
| Arbitrary |
| Frequency range | |
| R&S®HMF2525 | 100µHz to 12.5MHz |
| R&S®HMF2550 | 100µHz to 25MHz |
| Waveform length | up to 256kSa |
| Sample rate | 250MSa/s |
| Amplitude resolution | 14bits |
| Internal non-volatile memory | up to 4MB |
| Output Characteristics |
| Waveform output | BNC socket (front panel) |
| Output impedance | 50Ω |
| Signal output | on, off, inverted |
| Overlad protection | short-circuit-proof, max. ±15V of external voltage |
| Amplitude |
| Range | 5mVPP to 10VPP (into 50Ω)
10mVPP to 20VPP (open circuit) |
| Resolution | 1mV |
| Units | Vpp or dBm, selectable |
| Accuracy | ±1% of setting ±1mVPP at 1kHz |
| DC Offset | |
| Range | ±5mV to 5V (into 50Ω)
±10mV to 10V (open circuit) |
| Resolution | 1mV (into 50Ω) |
| Units | V |
| Accuracy | ±2% of offset setting ±0.5% of
amplitude setting ±2mV ±1mV / MHz |
| Burst |
| Waveform signals | all (except pulse) |
| Type | continuous, counted, gated |
| Count | 1 to 50,000 cycles, infinite |
| Start/Stop phase | 0° to 360° (sine only) |
| Trigger sources | manual, internal or external trigger, via interface |
| Internal trigger period | 1µs to 500s |
| Sweep |
| Waveform signals | all (except pulse) |
| Type | linear, logarithmic |
| Direction | up (fstart < fstop) down (fstart > fstop) |
| Sweep time | 1ms to 500s, resolution 1ms |
| Trigger sources | immediate (continous), internal, external (positive or negative slope) |
| Marker | adjustable to any frequency between fstart and fstop |
| Modulation |
| Modulation types | AM, FM, PM, FSK, PWM |
| Waveform carrier | all (except pulse) |
| Internal modulation (waveform) | sine, square (50%), ramp (pos., neg.),
triangle (50%), noise (white, pink),
cardinal sine, exponential (rise, fall),
arbitrary up to 4,096points |
| Internal modulation frequency | 10µHz to 50kHz |
| External modulation bandwidth (-3dB) | DC to 50kHz (250kSa/s sampling rate) |
| Amplitude modulation (AM) |
| Depth | 0% to 100% |
| Source | internal (basic waveforms, arbitrary), external |
| Frequency modulation (FM) | |
| Deviation | 10µHz to 10MHz |
| Source | internal (basic waveforms, arbitrary), external |
| Phase modulation (PM) | |
| Deviation | -180° to +180° |
| Source | internal (basic waveforms, arbitrary), external |
| Frequency shift key modulation (FSK) |
| Duty cycle | 0% to 100% |
| Rate | 0Hz to 250kHz |
| Hop | any frequency within the carrier signal’s range |
| Source | internal (basic waveforms, arbitrary), external |
| Pulse width modulation (PWM) | |
| Deviation | 0% to 49.99% of pulse width |
| Source | internal (basic waveforms, arbitrary), external |
| Connectors |
| External trigger / gate | |
| Connector | BNC socket (front panel) |
| Impedance | 5kΩ || 100pF |
| Polarity | positive, negative slope |
| Level | TTL, protected up to ±30V |
| Pulse width | min. 100ns |
| Trigger output | |
| Connector | BNC socket (front panel) |
| Impedance | 50Ω |
| Level | TTL, positive slope |
| Frequency | max. 10MHz |
| Modulation input |
| Connector | BNC socket (rear panel) |
| Impedance | 10kΩ |
| Voltage level | max. ±5V full-scale |
| Bandwidth (-3dB) | DC to 50kHz (250kSa/s sampling rate) |
| Frequency reference input |
| Connector | BNC socket (rear panel) |
| Impedance | 1kΩ |
| Frequency range | 10MHz ±100kHz |
| Level | TTL |
| Frequency reference output |
| Connector | BNC socket (rear panel) |
| Impedance | 50Ω |
| Frequency | 10MHz (norm.) |
| Level | 1.65VPP (into 50Ω) |
| Sweep output |
| Connector | BNC socket (rear panel) |
| Impedance | 200Ω |
| Level | 0V to 5V ramp synchronous with frequency sweeps |
| Interfaces |
| for mass storage | 1x USB-host (type A), FAT16/32 |
| for remote control | R&S®HO720 dual interface:
RS-232 / USB-device (type B) |
| Optional interfaces | R&S®HO732 dual interface:
Ethernet (RJ45) / USB-device (type B)
R&S®HO740 interface: IEEE-488 (GPIB) |
| Save and recall | on internal file system (up to 4MB) or
external USB memory (max. 4GB) |
| General Characteristics |
| Display |
| screen size / type | 8.9cm (3.5”) QVGA color TFT |
| resolution | 320 x 240 |
| backlight | LED |
| Real-time clock (RTC) | date and time |
| Power supply |
| AC supply | 105V to 253V, 50Hz to 60Hz, CAT II |
| power consumption | 30W (typ.) |
| Safety | safety class I (EN61010-1) |
| Temperature |
| operating temperature | range +5°C to +40°C |
| storage temperature | range -20°C to +70°C |
| Rel. humidity | 5% to 80% (without condensation) |
| Mechanical data |
| dimensions (W x H x D) | 285 x 75 x 365mm |
| weight | 3.6kg |
| All specifiactions at 23°C after 30 minutes warm-up |