Designed per the FCC specitications, this Tuned Dipole antenna is ideal for site attenuation measurements.
Our FCC-3 dipole antenna provides an accurate standard for precise EMI and site attenuation measurements (per OET-55 and ANSI C63.5). The FCC-3 is manufactured per the FCC balun design and individually calibrated. This dipole antenna consists of a matching balun, two telescoping elements, balun clamp for mounting, and a tape measure to adjust the element lengths.
The antenna balun is constructed per the W. K. Roberts design as specified in the ANSI C63.5 standard and consists of a folded balun that converts the 70-ohm (at resonance) to 50-ohm impedance. This balun design exhibits a low VSWR, low balun loss and can handle power up to 90 watts.
The FCC-3 tuned dipole antenna has two quarter wavelength elements for a total of λ/2 and must be adjusted to the desired frequency. The theoretical element length is (300/FMHz /2), however we provide slightly different lengths that are tuned to the maximum Return loss. The calibration tables provide a list of the frequency points and the optimized element length.
| Frequency Range: | 170 MHz - 340 MHz |
| Antenna Factor: | 13 to 19 dB/m |
| Gain: | 1 to 2 dBi |
| Balun Loss: | <0.5 dB |
| Maximum Continuous Power: | 90 Watts |
| Impedance: | 50 ohm |
| VSWR: | 1.3:1 |
| Connector: | N-Type, Female |
| Physical Dimensions | |
| Length: | 12.5 in. |
| Weight: | 0.5 lb.'s |
| Supplied Accessories | |
| One balun mounting clamp with 1/4-20 threads | |
| Two Telescoping Elements | |
| One Tape Measure | |
Frequency to Wavelength Calculator
Shielding Effectivness Test Guide
The AEH-510 Azimuth and Elevation head is used to assist the test engineer in pointing the mounted test antenna towards the device under test. This adjustable antenna mount has a rugged 4" mounting surface with a Captive 1/4-20 male thread for mounting all of A.H. Systems and most other compliance measurement antennas.