Item Code: 00005
Model: 72-4
Advantages
- A four element, computer optimized Yagi with wide bandwidth, high gain to boomlength ratio and exceptionally clean radiation pattern make this antena ideally suited for weak signal operation
- Easy to assemble, the antenna can be used for both fixed or portable applications, and no tuning is required to achieve peak performance.
Features
- Balanced “AntennaFeed” system assures a clean radiation pattern
- Flexible feedline interface simplifies installation and connector waterproofing
- All stainless steel hardware and custom mounting blocks for a trouble free service life.
Electrical Specifications
| Frequency Range | 70-73 |
| Gain, dBd | 6 minimum |
| Front to Back Ratio, dB | 20 minimum; 25 typical |
| VSWR (50 Ohms) | 1.2:1 typical |
| 1.5:1 bandwidth | 3 minimum; 4 typical |
| 3 dB Beamwidth E/H Planes | 67/97 degrees |
| Power | 200 watts |
| Termination, feet (m), coax | N Female, 4 (1.22), RG58 |
| Polarization | Horizontal or Vertical |
| Stacking Distance, E/H Planes | 12 ft / 8 ft |
Mechanical Specifications
| Number of Elements | 4 |
| Boom Length, feet (m) | 7.5 (2.3) |
| Boom Material | 1″ square 6061-T6 aluminum tubing |
| Element Material | 5/8″ 6063-T832 aluminum tubing |
| Mast Diameter, inches (cm) | 1.25-2.00 (3.2-5.1) |
| Mounting | Rear |
| Wind Surface Area, feet² (m²) | 1.8 (.17) |
| Wind Survival | 100 mph (160 kph |
| Weight | 10.5 pounds (4.8 kg) |
| Wind Rating | 100/160 |