Amplifier Research ATR26M250 Log Periodic Antenna 26 MHz – 250 MHz
Description
Amplifier Research ATR26M250 High Gain Log Periodic Antenna 26 MHz – 250 MHz is uniquely suited for use in both traditional applications as well as in new compact chambers. The proprietary design, utilizing a “bent element” approach, provides a size reduction of approximately 60% without sacrificing key electrical performance such as gain and beamwidth. The considerable size reduction minimizes field loss resulting from “room loading”. This is especially troublesome when conventional log periodics are used in small enclosures. The robust design can accommodate the high-power levels necessary to generate significant E-fields.
The ATR26M250 can also be calibrated for RF emissions testing. This antenna is built tough enough for outdoor use. The antenna comes with a wall bracket but can also be mounted, with its integral polarization change mount, on the AP5010B antenna positioner. Included are two non-metallic masts, 4 feet and 6 feet for vertical mounting.
The Model ATR26M250 allows polarization change (90-degree rotation) without removing the antenna from its positioner.
Features
- Wide band, high gain, log periodic
- Low VSWR for high field-strength immunity testing
- Size reduction of approximately 60 percent
- Robust design accommodates for high power levels
- Tough enough for outdoor use
- Compliant to many military and commercial emissions and immunity standards
01
02
03Specifications
| FREQUENCY | 26–250 MHz |
| POWER INPUT, CW | 15000 Watts |
| POWER GAIN (over isotropic) | 6 dB (80–250 MHz)
-3 to +6 dB (26–80 MHz) |
| GAIN FLATNESS | ±1.5 dB (80–250 MHz) |
| IMPEDANCE | 50 ohms nominal |
| VSWR (maximum) | 3.0:1 (80–250 MHz)
10:1 (26–80 MHz) |
| BEAMWIDTH (average) | See graph (datasheet) |
| CONNECTOR | 1 5/8 EIA |
| SIZE (W x H x D) | 279.4 x 53.6 x 202.4 cm (110 x 21.1 x 79.7 in) |
| WEIGHT (maximum) | 31.8 kg (70 lb) |
