英國TTi TGR2050 函數信號發生器
TGR2050 - 2GHz Synthesised RF Generator

   150kHz to 2000MHz frequency range
   10Hz setability, +/-1ppm frequency stability
   Locking to external frequency standard
   -127dBm to +7dBm amplitude, 0.1dB steps
   AM, FM and Phase modulation, internal or external
   80 character back-lit LCD display
   Keyboard and rotary encoder control
   Full remote control through RS232 and GPIB
More Information:




Overview
The TGR series are low cost, synthesised RF signal generators that incorporate the essential features required for most development, test and service work; namely high frequency accuracy and stability, wide dynamic range, low phase noise and leakage, and flexible modulation capabilities.
The TGR2050 covers from 150kHz up to 2GHz and incorporates AM, FM and Phase modulation (internal and external). The wide frequency range and comprehensive modulation capabilities make it suitable for most tasks within the 2GHz spectrum.

The generator can be operated using either numeric or rotary controls, and can be remotely controlled via either an RS-232 interface or GPIB interface, both of which are included as standard. 
Nine memories are provided for user set-ups.
Wide modulation range and low distortion make the TGR2050 suitable for most modulated-signal test procedures.
SPECIFICATIONS
Specifications apply after 30 minute warm-up, ambient 5?C to 40?C
FREQUENCY
Frequency Range: 150kHz to 2000MHz
Setting Resolution: 10Hz by direct keyboard entry, or in user-set increments of 10Hz to 999?999MHz by rotary control or increment?decrement keys.
Display Resolution: 10Hz
Phase Noise: -116dBc/Hz at 25kHz offset, 500MHz carrier.
Residual FM (FM Off): Equivalent peak deviation for 300Hz to 3?4kHz B/W: 10Hz at 500MHz carrier
REFERENCE FREQUENCY
Options: Internal or External (via rear panel BNC)
Internal Accuracy: +/- 1 ppm over temperature range 1 5?C to 30?C;  +/- 2 ppm over 5?C to 40?C.
Internal Stability: < +/-1ppm/year ageing.
Internal Ref. Out: 10MHz from 50 Ohms, amplitude 2V pk-pk into 50 Ohms.
External Ref In: 10MHz into 50 Ohms, amplitude 2V pk-pk to 5V pk-pk.
OUTPUT LEVEL
Output Level Range: ?127dBm to +7dBm (0?1?V to 500mV into 50W).
?127dBm to +1dBm in AM mode.
Setting Resolution: 0?1dB (or 0?01?V to 1mV) by direct keyboard entry, or in user-set increments of 0?1dB to 100dB (or 0?01?V to 100mV) by rotary control or increment?decrement keys.
Accuracy: Better than ? 2dBm.
Harmonics: <-25dBc at +7dBm.
Sub-Harmonics: <-25dBc at +7dBm.
Non-Harmonic Spurii: <?60dBc at >62.5MHz, <?50dBc at <62.5MHz.
Carrier Leakage: <0.5uV generated into a 50W load by a 2 turn 25mm loop, at 25mm from the generator with output set to <-10dBm into a 50W sealed load.
Output Impedance: 50W
Output Connector: TYPE N
Reverse Protection: 50V DC, up to 25W from 50 Ohm source, LED indication
Output Switch: RF OUT on-off switch with LED for ON status.
MODULATION SOURCE
Type: Internal from built-in sine wave generator, or external from front panel BNC.
Internal: 400Hz or 1kHz sine, signal also available as an output.
External: Calibrated for 1V rms sine, input impedance 600 Ohms.
FREQUENCY MODULATION
Max. Peak Deviation: See Table below.
Setting Resolution: 0?5kHz by direct keyboard entry, rotary control or increment?decrement keys.
Deviation Accuracy: <?10% ?0.5kHz for 1kHz Internal or 1kHz / 1Vrms External Modulation.
External Modulation 100Hz - 300kHz (? 2dB relative to 1kHz).
Distortion: < 2% at 1kHz modulation, max. deviation (300-3.4kHz bandwidth).
PHASE MODULATION
Max. Peak Deviation: See Table below.
Setting Resolution: 0.05 rads for <10.0rads deviation, 0.1 rads for >10.0rads deviation.
Deviation Accuracy: <?10% ?0.05rads for 1kHz Internal or 1kHz / 1Vrms External Modulation.
External Modulation 100Hz - 10kHz (?2dB relative to 1kHz).
Distortion: < 2% at 1kHz modulation, max. deviation (300-3.4kHz bandwidth).
AMPLITUDE MODULATION
Max Mod. Depth: 100%.
Setting Resolution: 0.5%.
Deviation Accuracy: <? (5% setting +1%) for 1kHz Internal or 1kHz / 1Vrms External Modulation.
External Modulation 50Hz - 200kHz (?1dB relative to 1kHz).
Distortion: 150kHz to 1GHz - <3% at 30%, <5% at 70%1GHz to 2GHz - <5% at 30%, 
<10% at 70% at 1kHz modulation, max. deviation (300-3.4kHz bandwidth).
INTERFACES
Full remote control facilities are available through both RS232 and GPIB interfaces
RS232: Variable Baud rate, 19200 Baud maximum, 9-pin D-connector. Compatible with Thurlby Thandar ARC (Addressable RS232 Chain).
GPIB (IEEE-488): Conforming with IEEE488?1 and IEEE488?2.
GENERAL
Display: 20 character x 4 row backlit alphanumeric LCD
Data Entry: Keyboard selection of frequency, amplitude, etc.; value entry by numeric keys or by rotary control.
Stored Settings: Up to 9 complete instrument set-ups may be stored in battery-backed memory.
Size: 3U (130mm) height; half-rack (212mm) width; 330mm long.
Weight: 4?6 kg. (10 lb)
Power: 230V, 115V or 100V nominal 50/60Hz, adjustable internally; operating range ?14% of nominal; 30VA max. Installation Category II.
Options: 19 inch rack mounting kit.
ENVIRONMENTAL & SAFETY
Operating Range: +5?C to 40?C, 20-80% RH.
Storage Range: ?20?C to + 60?C.
Environmental: Indoor use < 2000m, Pollution Degree 1.
Safety: Complies with EN61010-1.
EMC: Complies with EN61326
 Max. Peak Deviation versus Carrier Frequency
Frequency Modulation Phase Modulation
1000MHz - 2000MHz 800kHz 80.0 rads
500MHz - 1000MHz 400kHz 40.0 rads
250MHz - 500MHz 200kHz 20.0 rads
125MHz - 250MHz 100kHz 10.0 rads
62.5MHz - 125MHz 50kHz 5.0 rads
150kHz - 62.5MHz 100kHz 10.0 rads