PROXEL SX-400
SWR / Wattmeter VHF - UHF (140-525 MHz)
The Best-Seller for High Bands
The **Proxel SX-400** is the most widely used measuring instrument for monitoring transmission lines in the **VHF and UHF** bands. Designed to operate between **140 and 525 MHz**, it perfectly covers amateur radio (2m and 70cm), civil, marine, and PMR frequencies.
Thanks to its robust construction and the precision of its internal sensor, it allows for extremely easy detection of the standing wave ratio (SWR) and output power up to **400 Watts**, ensuring perfect antenna system matching.
Main Features
● CROSSED-NEEDLE DISPLAY
Simultaneous reading of Forward Power, Reflected Power, and SWR without the need for continuous manual calibration.
● PEP MEASUREMENT
Peak Power function for accurate peak power reading during voice transmissions.
● COMPACT DESIGN
Shielded metal chassis to minimize external interference and ensure reading stability.
TECHNICAL DATA
| Operating Frequency | 140 - 525 MHz |
| Power Range | 5W / 20W / 200W / 400W |
| Impedance | 50 Ohm |
| RF Connectors | SO-239 (MJ) Socket |
| Dimensions / Weight | 155 x 80 x 100 mm / 670g |
HamRadioShop | Authorized Proxel Italy Dealer
Disclaimer: It is recommended to use connecting cables of correct length to avoid phase shifts in SWR measurement. The instrument is supplied with a DC cable for dial backlighting.
