Product Overview
SURECOM SA-250 Antenna Analyzer
The SA-250 is designed for testing, tuning, checking, and repairing antennas and feed lines. It is a SWR and impedance (vector) analyzer, highly suitable for professionals and hobbyists.
Main application: Antenna SWR and impedance measurement with an easy-to-use graphical display across a wide frequency range. Reduces tuning time. Three quick-scan bands supported.
Main Features
- 2.2" precision LCD, high-brightness—readable in sunlight
- Heavy-duty aluminum enclosure — strong anti-interference
- Very compact and convenient for field use
- Built-in rechargeable Li-ion battery
- Full-band control (no band selection needed)
- One-button quick scan mode for V1 (132-173MHz), V2 (200-260MHz), U (400-519MHz)
- Auto marker for best SWR point
- Graphical parameter display, quick and easy setup (only 4 buttons with on-screen menus)
- Constant battery status indicator, auto shut-off, built-in elapsed time timer
Operation Overview
- Basic Use: Connect the antenna to the SMA connector. Turn on power, use the rotary encoder and buttons for function selection (Scan, Single frequency, etc.).
- Scan Modes: Quick scan key for instant band sweeps; results shown as SWR graph. Other parameters (Zx, Rs, jx) can be enabled from the menu.
- Single Frequency Measurement: Tune to center frequency with rotary encoder. View impedance and SWR directly.
- Save/Recall: Settings are retained across power cycles if saved in the menu.
Key Specifications
| Frequency Range | 132-173MHz, 200-260MHz, 400-519MHz (3-band full coverage) |
| Display | 2.2" color graphic TFT LCD (high-brightness, field-readable) |
| Impedance Measurement | SWR, Zx, Rs, jx (vector impedance, graphical curve) |
| Power Source | Built-in 3.7V, 900mAh Li-ion battery (14500 size) |
| Enclosure | Heavy-duty aluminum (compact, strong interference resistance) |
| Interfaces | SMA-female (adapters: SMA-SO239, SMA-BNC, SMA-SMA included) |
| USB Charge | Micro-USB (accepts standard USB port chargers) |
| Controls | Rotary encoder and 4-button soft-menu layout |
| Weight | 6.1oz (0.172kg) |
| Dimensions | 2.8" x 4.0" x 1.0" (7cm x 12cm x 2.5cm) |
| Scan Modes | Quick (V1/V2/U), Full band, Single frequency, Auto marker SWR reference |
Package Contents
- 1 — SURECOM SA250 Antenna Analyzer (ENGLISH VERSION)
- 1 — English User Manual
- 1 — Micro USB charge cable
- 1 — AC Adapter 100-240V (adapts to country)
- 1 — SMA-SO239 adaptor
- 1 — SMA-BNC adaptor
- 1 — SMA-SMA adaptor
How To Use (Quick Steps)
- Power On/Off: Hold white button; for off, either hold [F1] 5 seconds or use menu "Power Off".
- Function Select: Turn knob to choose mode: Scan for graphical sweep, Single for single frequency. Press [F2] to enter.
- Scanning: Press [Scan] to auto sweep the band and view SWR curve. Use [View] and [F3] to move marker and analyze points.
- Saving Settings: Use rotary encoder to select "Save", then press [F2] to store preferences across power cycles.
Additional Notes
- Measurement modes: Scan (showing SWR, impedance, etc. curves), Single (specific frequency display), marker support
- Quick scan band selection: [Scan V1] for 132–174MHz, [Scan V2] for 200–260MHz, [Scan U] for 400–519MHz
- Auto marker gives best SWR reference—helps in fast antenna tuning
- Settings or markers can be reset after power off unless manually saved
