Avcom PSA-37D Portable Spectrum Analyzer

The Avcom PSA-37D is a portable spectrum analyzer engineered for comprehensive signal analysis across a broad frequency spectrum, primarily serving the CATV, Broadcast, Satellite, and Wireless Network industries. Its design prioritizes field operability with a battery-powered option and a built-in recharger, alongside AC operation. The instrument is intended for applications such as initial satellite signal acquisition, optimizing dish antenna tracking, and diagnosing Low Noise Amplifier (LNA) and Block Downconverter (BDC) performance.

Technical Specifications * Frequency Range: * 1 MHz to 4.2 GHz * Covered in multiple bands: * Low Bands: Less than 10 MHz to 500 MHz, 500 MHz to 1000 MHz, 950 MHz to 1450 MHz, 1250 MHz to 1750 MHz * High Bands: 3.7 GHz to 4.2 GHz * Alternative band breakdown: 1 - 1100 MHz, 950 - 2150 MHz, 2100 - 3200 MHz, 3200 - 4200 MHz * Extendable with MFCs to 18 GHz

• Amplitude Accuracy: ±2 dB typical per band
• On-Screen Dynamic Range: Better than 60 dB
• Resolution Bandwidth: 250 KHz (also mentioned as 300 kHz for >1 GHz in one source)
• Span: Greater than 500 MHz (50 MHz/DIV) to less than 1 MHz/DIV. Independent span adjustment is supported.
• Display: * CRT display with 10 horizontal graticule divisions (frequency) and 7 vertical graticule divisions (amplitude). * Each vertical division can be set to 2 dB or 10 dB. * 4-digit LCD for center frequency readout (accuracy ±6 MHz nominal at zero span). * LCD also displays span start/stop frequencies.
• Reference Levels: 0, -20, and -40 dBm (equivalent to +49, +29, and +9 dBmv)
• RF Sensitivity: Greater than -90 dBm Typical

Electrical Specifications * LNA/LNB Power: * Built-in DC block with +12 VDC or +18 VDC output. * Optionally +13/18 VDC & 22 kHz. * Maximum current: 0.5 A. * Users are responsible for ensuring compatibility of powered components with the supplied voltage.

• Power Requirements: * 115 VAC, 60 Hz, 15 watts * Internal rechargeable gel cell lead-acid batteries for portable operation. * Battery operation typically provides 2 to 3 hours (depending on duty cycle). * Battery life can be impacted by "deep cycling"; recharging is recommended even after short durations. * Battery monitoring function available on LCD.

Interfaces * RF Input Connectors: * Low Band: BNC * High Band: Type N

• DC Block Capability: Both input connectors are DC blocked. Provision for inserting +12 or +18 VDC via front panel switch.

Physical Characteristics * Dimensions: 14.5"W x 5.5"H x 13.5"D (37 cmW x 14 cmH x 34 cmD)

• Weight: 17 lbs / 7.72 Kg
• Construction: Heavy gauge aluminum chassis and cover with epoxy paint. Includes a carrying handle and line cord storage brackets that double as feet for vertical operation.
• Circuitry: Primarily on pluggable PC boards for ease of service.

Compatibility * Suitable for CATV, Broadcast, Satellite, and Wireless Network applications.

• Can be used to power and test LNAs and BDCs.
• Capable of displaying DBS signals (e.g., DISH NETWORK, DIRECT-TV). Why Choose Aumictech for Avcom PSA-37D? At Aumictech, we specialize in supplying high-end spectrum analyzer equipment. Whether you need precise field signal analysis, reliable LNA/BDC testing, or efficient satellite dish alignment tools, our team ensures the Avcom PSA-37D delivers maximum performance for your application.