Watkins-Johnson WJ-8721
The WJ-8721 is a fully synthesized general purpose HF receiver for surveillance, monitoring and direction finding for RF communications from 5 kHz to 30 MHz with 1 Hz tuning rwsolution. The unit is packaged in a single slot C-size VXI (VMEbus extensions for instrumentation) module. The WJ-8712 is ideal for applications requiring high density and the highest degree of integration. Placing the receiver directly on a standard instrument and cumputing bus significantly reduces difficulties in system integration.Functions such as noise blanking, tunable notch filter, IF filtering, automatic gain control (AGC), Demodulation and beat frequency oscillator ( BFO) tuning are accomplished through the use of digital signal processing (DSP) techniques. Filters with superior amplitude and group delay characteristics are achieved with digital stability and repeatability.66 seletable bandwidths range from 56Hz to 16kHz. Available detection modes are AM,FM,CW,USB,LSB and ISB. A tunable BFO is adjustable in 10 Hz steps over a +/- 8000 Hz range. Passband tuning further enhances the reception of available AGC modes. The squelch thershold is adjustable from 0 to -135 dBm or can be disabled. Three scan modes are available: channel scan, F1-F2 scan and F1-F2 scan with lockouts.
| Category | Receivers |
| Manufacturer | Watkins-Johnson |
| Model | WJ-8721 |
| Description | VXI HF Receiver |
| Frequency | 5 kHz-30 MHz |
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| Price | - |
