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.
