5 Elements, 70 – 70.5 MHz – 4m Yagi antenna PA70-5-3B
5 Elements on 4 meter band antenna can be assembled/disassembled pretty fast in portable use. Antenna boom is tapered with tick 30 x 30 mm aluminum. 5 Element 50 MHz antenna uses extremely strong bracket with M8 stainless steel clumps, hence its well suited for permanent use too. Our 70 MHz antennas have tapered elements to reduce vibrations at the high winds, as well as reduced wind-load. Survival wind speed is 160 km/h.
All antennas are assembled and tested before shipping. There is no exception. All our Ham Radio antennas are pre-tuned. Once the antenna is up in the air, you should expect extremely good SWR across whole designed range, true gain and F/B as given in the table. You have nothing to tune, nothing to measure. Just put number to number and enjoy the Ham Radio hobby.
Everything is included in the 5 element 70 MHz antenna box: Antenna, balun with connector and bracket. Yours is just to assemble and have fun! As all our antennas are, this Ham Radio antenna has been designed with professional full-3D EM modelling software. The antenna is calculated with the influence of boom, balun, connectors…
World-wide shipping.
PA70-5-3B Antenna is the best performance antenna in class length of 3m.
Power options:
Antenna does not have power limit, only limitations are in used balun and antenna connector. Default maximum power input is 850 W.
| Antenna label | Maximum Input Power |
|---|---|
| PA70-5-3B | 850 W |
| PA70-5-3BP | 1500 W |
| PA70-5-3BE | 2500 W |
| PA70-5-3BEX | 7500 W |
Antenna Power Rating does not affect electrical or mechanical characteristics of the antenna. PA70-5-3B, PA70-5-3BP, PA70-5-3BE, PA70-5-3BEX have the same characteristics, only difference is in antenna maximum input power.
PA70-5-3B antenna appearance. 5 Elements on 3 meter boom:
Electrical and Mechanical specifications of PA70-5-3B antenna.
Electrical specifications of 4 meter 5 element Yagi:
| Electrical Specifcations | PA70-5-3B Antenna |
|---|---|
| Frequency Range: | 70 – 70.5 MHz |
| Free Space Forward Gain: | 10.3 dBi |
| Front to Back Ratio: | 28 dB |
| 3 dB Horizontal Beam-width: | 52° |
| Polarization: | Horizontal |
| Nominal Input Impedance: | 50 Ohm |
| SWR Across Entire Band: | < 1.2 |
| Maximum Power Input: | 850 W (or more by request) |
| Matching Method: | Direct feed through common mode choke (current balun) |
| Connector: | “N” default (SO 239 or 7/16 DIN by request) |
Mechanical specifications of 70 MHz 5 element antenna:
| Mechanical Specifications | PA70-5-3B |
|---|---|
| Number of Elements: | 5 |
| Elements Diameter: | 12 mm, extensions 10 mm |
| Dipole Diameter: | 12 mm, extensions 10 mm |
| Longest Element: | 2.2 meter |
| Element Mounting Position: | Below the boom |
| Balun and Connector: | Included |
| Boom Length: | 2.93 meter |
| Boom Size: | 30 x 30 mm |
| Turning Radius: | 1.8 meter |
| Number of Boom Pieces: | 2 |
| Guy rope support: | Not necessary. Strong boom. |
| Mounting Mast Diameter: | 43 – 70 mm 1-11/16″ – 2-3/4″ OD |
| Clamp: | M8 Stainless Steel |
| Survival Wind Speed: | 160 km/h |
| Wind Load: | – |
| Net Weight: | 3.8 kg |
| Gross Weight: | 5 kg |
| Transportation Length: | 1.49 meter |
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