8657J – Agilent

Description

Item #: 8657J

Manufacturer: Agilent
Series: 86xx

8657J by Agilent is a Pi/4 DQPSK Signal Generator in the 86xx series. 8657J features a Frequency Range of 1,800 MHz to 2,000 MHz and an Output Level of +7 to -143.5 dBm.

The HP Agilent 8657J is a Pi/4 DQPSK Signal Generator designed for assessing radios for Japanese digital cordless phone systems, which are known as Personal Handiphone Systems (PHS). The 8657J is suited for in-channel analysis of analog receivers. Low radiated emissions, low residual noise, and only slight distortion are a few of the great features of this Signal Generator. Furthermore, the 8657J ensures that system integration is simple because of its front-panel and HP-IB compatibility with the 8656B/8657A/8657B family of signal generators.

The output level range for the Agilent 8657J is +7 to -143.5 dBm. The switching speed is within 100 Hz of final frequency. The 8657J Signal Generator has several options available to order upon purchasing the model. These options include the following: a high-stability reference, a front handle kit, a rack-mount flange kit, and an extra service manual.

This model has a frequency range encompassing 1,800 to 2,000 MHz, which is perfect for analyzing PHS mobiles and base stations. The connected Pi/4 DQPSK modulator can receive serial data and symbol clock at 192 kHz plus or minus 10 kHz. Modulator filtering is valued at 0.5 root raised cosine. One fact to note is that FM and AM modulation are not accessible in the Pi/4 DQPSK modulation mode. There is also a high-performance pulse modulator included as a standard feature on the 8657J, which can be operated for digital and analog modulation modes. Pulse modulation used in conjunction with Pi/4 DQPSK modulation ability permits the 8657J to simulate the TDMA properties of these systems.

Specifications