8 Channel HF Narrowband Receiver
|Operating Frequency:||2MHz - 30MHz|
The CA7708 narrowband HF receiver is the original '8-Pack' high performance receiver platform offering up to 8 independent receiver modules covering 2MHz to 30MHz.
In CommsAudit SPECTRA and HFGEO systems, the CA7708 receiver is used to perform 3 tasks:
- Super Resolution Direction Finding
In particular, the CA7708 tuner is ideally suited to search and collection of Low Probability of Detection (LPD) signals - low amplitude signals in congested signal environments.
The architecture of the CA7708 receiver provides superior amplitude discrimination over 'wideband' receiver systems - particularly in high signal level RF environments - allowing low amplitude signals to be successfully prosecuted.
- 8 Independent receiver modules
- 2 - 30MHz, 1Hz tuning resolution
- Excellent SFDR & blocking performance
- Low phase noise
- Gigabit Ethernet 1000BASE-SX
- Remote Control over IP
- 25kHz Bandwidth, switchable 7.5kHz
- Very fast tuning speeds
- Time stamped I / Q data (VITA-49.0)
- Switchable phase coherent mode
- BITE (Built In Self Test)
- ITAR Free - UK Designed & Manufactured
- HF Radio monitoring
- HF Commuications
- Signal Collection
- Direction finding
- Blind Signal Separation
- Adaptive Beamforming
The CA7708 platform can hold up to 8 HF narrowband receiver modules (tuner digitiser modules). Individual RF inputs of 2 - 30MHz are routed to each module. Within each module the analogue RF front end allows user definable gain, attenuation and filtering, after which the signal is digitised at a nominal bandwidth of 25kHz, and down-converted to baseband in the digital domain.
The CA7708 uses high dynamic range 16-bit A/D converters. The data stream is made available as time-stamped complex I / Q data in VITA-49.0 format. Control and data output is via the fibre Gigabit Ethernet interface (1000BASE-SX).
The CA7708 Narrowband Receiver provides the capability to operate 8 receiver modules in a phase coherent mode, selectable by software control. The CA7708 is able to accept a 1 Pulse per Second (1PPS) trigger, and 10MHz reference signal input.
The CA7708 receiver platform is housed in a 2U 19" rackmount chassis, designed to operate in EMC sensitive environments. Power input is 24VDC, or by 90/240VAC universal supply. The receiver has extensive Built In Self Test (BITE). BITE allows local or remote monitoring of system status & health. The system supports multiple simultaneous users.
Extended range version available offering world leading performance from 1.6MHz - 30MHz
The CA7708 HF Receiver is used in HFGEO Super Resolution HF direction finding system.
The CA7708 HF receiver is used in SPECTRA Radio Monitoring System to perform search, and collection of detected signals of interest.
The CA7708 HF receiver is used to provide high density HF communications (multiple simultaneous receiving channels) within a compact form factor.