SWR and power meters — Nissei
Nissei RX-503 cross-needle
Cross-needle SWR/power meter 1.8–525 MHz, 2/20/200 W full scale, AVG and PeP reading
The Nissei RX-503 is an SWR/power meter with a large cross-needle meter for simultaneous reading of forward power, reflected power and SWR from 1.8 to 525 MHz, in AVG or PeP.
Product description
A true directional coupler improves reading accuracy. The meter has a three-colour scale and uniform LED backlighting.
On the back there are two pairs of connectors, one for HF/50 MHz and one for 144 and 430 MHz, selectable from the front panel. Also from the front you select the full scale (2, 20 or 200 W) and AVG or PeP reading for SSB and AM.
Key features
Cross-needle
Forward, reflected and SWR at a glance.
Two pairs of connectors
HF/50 MHz and VHF/UHF.
AVG and PeP
Front-panel selection.
Technical specifications
| Frequency | 1.8–525 MHz |
| Full scale | 2 / 20 / 200 W |
| Accuracy | ± 5% (AVG) · ± 10% (PeP) |
| Insertion loss | less than 0.1 dB |
| Impedance | 50 Ω |
| Connectors | SO-239 |
| Dimensions | 140 × 84 × 122 mm |
| Weight | 950 g |
Package contents
- Manual in Italian
- Power cable for the backlight
HamRadioShop | SWR and power meters
