Overview
ERI 100A-4, Four Bay, 2kW Low Power Circularly Polarized FM Antenna, 7/16 DIN Female
The 100A Series antenna is the latest development in ERI’s famous ROTOTILLER® style FM antenna. The 100A Series antenna is designed for non-pressurized, translator and low power FM applications. This antenna is also available in half wave length bay to bay configurations which will limit RFI problems by reducing downward and upward radiation. Mounting brackets and attachment hardware suitable for round members up to 4” diameter are included. Stand-off pole mounting brackets and antenna input jumper cables are also available.
Specifications/Models
| Model | Power Gain | db Gain | 50 Ohm Input | Input Power Rating (watts) | Bays |
| 100A-1M | 0.42 | -3.768 | 7-16 DIN Male | 1000 | One |
| 100A-2F | 0.90 | -0.458 | 7-16 DIN female | 2000 | Two |
| 100A-4F | 1.92 | 2.833 | 7-16 DIN female | 2000 | Four |
| Half Wave Spaced Elements | |||||
| Model | Power Gain | db Gain | 50 Ohm Input | Input Power Rating (watts) | Bays |
| 100A-2F-HW | 0.63 | -2.007 | 7-16 DIN female | 2000 | Two |
| 100A-4F-HW | 1.18 | 0.704 | 7-16 DIN female | 2000 | Four |
(1) Rated at 2000 feet elevation
A Universal Mounting Clamp Kit is included with the antenna for ease of mounting to the tower leg. The Brackets supplied mount to legs ranging from 1.25 thru 5.00 inches in diameter. The kit generally eliminates the need for any additional brackets, however chain and “J” bolts can be ordered for larger pole installations.
