TGR1040 - 10MHz to 1GHz RF Signal Generator with FM Modulation

TGR1040 - 1GHz Synthesized RF Generator

• 10MHz to 1000MHz frequency range

• 1kHz set ability +/- 2ppm frequency stability

• -127 dBm to +7 dBm amplitude, 0.1 dB steps

• FM modulation, internal or external

• 80 character back-lit LCD display

• Keyboard and rotary encoder control

• Full remote control through RS232 or optional GPIB

  Overview

  The TGR1040 is a low cost, synthesized RF signal generator which incorporates the essential features required for most development, test and service work - frequency accuracy and stability, wide dynamic range, low phase noise and low leakage. The generator incorporates both internal and external FM. It is suitable for FM radio receiver sensitivity measurements, system gain measurements, receiver tuning & alignment, oscillator substitutions, EMC/antenna/field strength measurements and as a signal source for many other RF circuit and system development tasks.

  The instrument can be operated manually via the front panel or can be remotely controlled via the RS-232 interface (standard) or GPIB interface (optional). Nine memories are provided for user set-ups. In addition the generator's low cost, it’s ease of use and remote control capabilities make it eminently suitable for most production and development applications where a basic, stable signal source is required.

  SPECIFICATIONS Specifications apply after 30 minute warm-up, ambient 5°C to 40°C FREQUENCY Frequency Range: 10MHz to 1000MHz Setting Resolution: 1kHz by direct keyboard entry, or in user-set increments of 1kHz to 999·999MHz by rotary control or increment–decrement keys. Display Resolution: 1kHz Accuracy: ± 2 ppm over temperature range 5°C to 40°C. Stability: <1ppm/year ageing. Phase Noise: -110dBc/Hz at 25kHz offset, 500MHz carrier. Residual FM (FM Off): : Equivalent peak deviation for 300Hz to 3·4kHz B/W: 10Hz at 100MHz carrier, 35Hz at 500MHz carrier, 180Hz at 1000MHz carrier OUTPUT LEVEL Output Level Range: –127dBm to +7dBm (0·1µV to 500mV into 50W). Setting Resolution: 0·1dB (or 0·01µV to 1mV) by direct keyboard entry, or in user-set increments of 0·1dB to 100dB (or 0·01µV to 100mV) by rotary control or increment–decrement keys. Accuracy: Better than ± 2dBm, except for output levels <-70dBm at 500 -1000 MHz, ± 3dBm. Harmonics: Typically <-25dBc, maximum –20dBc, any carrier frequency, output level <0dBm. Non-Harmonic Spurii: <–60dBc at >8kHz offset. 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 Output Switch: RF OUT on-off switch with LED for ON status. FM MODULATION Peak Deviation: 0·5kHz to 100kHz. Setting Resolution: 0·5kHz by direct keyboard entry, rotary control or increment–decrement keys. Modulation Frequency: Internal 1kHz; External 300Hz to 50kHz Deviation Accuracy: <±10% of setting ±0.5kHz, excl. residual FM, for 1kHz modulation, internal or 1Vrms external. External Modulation Frequency Response: ± 1dB from 30Hz to 50kHz relative to 1kHz. Distortion: <2% total harmonic distortion at 1kHz mod. frequency, 100kHz deviation and 500MHz carrier. Input Impedance: 100kOhm Input Connector: BNC INTERFACES Full remote control facilities are available through the RS232 (standard) or optional GPIB interfaces. RS232: Variable Baud rate, 19200 Baud maximum, 9-pin D-connector. Compatible with Thurlby Thandar ARC (Addressable RS232 Chain). 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: IEEE-488 interface; 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

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