S331L Antenna Feeder Tester

S331L Intelligent Antenna and Feeder TesterIntroduction

The S331L Intelligent Antenna and Feeder Tester is a fully integrated single-port cable and antenna analyzer with a frequency range of 2 MHz to 4 GHz, featuring a built-in InstaCal™ module and a built-in power meter.

The S331L is a cost-effective and durable handheld cable and antenna analyzer. It replaces the current value model S331D, which is one of the longest-serving models in the handheld cable and antenna analyzer series. Optimized with the latest technological advancements to adapt to field conditions, the S331L is easy to operate and offers efficient scan management. Its battery lasts all day, making it the most durable battery among handheld cable and antenna analyzers. Equipped with an outdoor-visible 7" TFT large touchscreen display, a new intuitive GUI, and a classic mode that simulates the basic measurement process of the S331D, the S331L is very user-friendly and enhances on-site productivity.

The S331L is suitable for contractors, installers, and wireless service providers who need to reduce maintenance costs per site. The new S331L Site Master will benefit anyone who needs to perform basic cable/antenna and power measurements.

For contractors who don’t have time to search for a power source nearby, the S331L can last an entire workday on a single charge, significantly improving productivity throughout the day. The Site Master S331L not only has a long battery life but also ample memory, so there’s no need to worry about running out of space for storing additional measurement results. Capital expenditure impacts yield and stability. The new S331L is the most valuable product in the era of handheld cable and antenna analyzers, delivering the highest output with minimal impact on operating expenses.

S331L Intelligent Antenna and Feeder Tester Features:
• 2 MHz to 4 GHz handheld cable and antenna analyzer, impact-resistant, dustproof, and waterproof
• Continuous battery operation for over 8 hours
• Standard built-in InstaCal™ module and power meter
• FlexCal™ maintains calibration even when the frequency changes
• Classic mode similar to the S331D
• Built-in "Help" function button
• 800x480 7" TFT touchscreen display and multiple USB ports
• Internal storage for >1000 files, with quick preview of stored scans
• Industry-standard *.dat format compatible with Line Sweep Tool (LST) and HHST

S331L Intelligent Antenna and Feeder Tester Standard Measurements Include:
• Return Loss
• VSWR
• Cable Loss
• Distance-to-Fault Return Loss
• Distance-to-Fault VSWR
• RF Power (50 MHz to 4 GHz)

S331L Intelligent Antenna and Feeder Tester Technical Specifications:
Frequency Range: 2 MHz to 4 GHz
Frequency Accuracy: ≤ ±5 ppm @ 25°C
Frequency Resolution: 1 kHz
Output Power: +3 dBm, typical
Interference Immunity:
Co-channel: +17 dBm outside the calibrated sweep frequency range
Same frequency: +13 dBm within the calibrated sweep frequency range
Test Speed
Return Loss: ≤1.50 ms/data point, low RF interference immunity, typical
Distance-to-Fault: ≤1.75 ms/data point, low RF interference immunity, typical
Return Loss
Test Range: 0 ~ 60 dB
Resolution: 0.01 dB
VSWR
Test Range: 1 ~ 65
Resolution: 0.01
Cable Loss
Test Range: 0 ~ 30 dB
Resolution: 0.01 dB
Distance-to-Fault
Return Loss Test Range: 0 ~ 60 dB
VSWR Test Range: 1 ~ 65
Distance Resolution (meters): (1.5 x 10^8 x Vp)/ΔF (Vp = velocity factor, ΔF = F2 – F1 in Hz)
Measurement Distance Range (meters): 0 ~ (data points – 1) x distance resolution, 1500 m (4921 ft)
Test Accuracy @ 23±3°C
Calibration Directivity: ≥38 dB, InstaCal™ calibration
≥42 dB, OSL calibration (OSLN50-1, OSLNF50-1)

Power Meter
Frequency Range: 50 MHz to 4 GHz
Display Range: –100 dBm to +100 dBm
Test Range: –33 dBm to +20 dBm
Offset Range: ±100 dB, user-configurable
Power: +27 dBm, ±45 VDC (damage level)
Interface: N(m) type, 50 Ω
Accuracy: ±0.7 dB (0 dBm, 1 GHz CW, @23±3°C)
Frequency Response and Linearity: Additional ±0.8 dB (±0.5 dB typical)
Temperature Effect: Additional ±0.02 dB per 1°C change (typical)

S331L Intelligent Antenna and Feeder Tester Display Specifications:
Type: TFT touchscreen
Size: 7.0" sunlight-visible color LCD
Resolution: 800 x 480

S331L Intelligent Antenna and Feeder Tester Battery Specifications:
Type: Lithium-ion battery
Battery Life: >8.0 hours (70% brightness, continuous use), typical 10 hours

Efficient Scan Management

· Internal storage for >1000 files, including scan results, settings, and screenshots

· Quick preview of stored scans

· Line Sweep Tool (LST) software for editing scans, naming, packaging, and generating PDF or HTML reports

· Standard *.dat scan file format

· Compatible with HHST software, widely accepted by operators

· SweeMasters DIRECT, providing online test result transmission services

S331L and S331D Performance Comparison