PST-33 Triband Yagi
Construction detail of the traps. Copper coil on fiberglass insulator
Small 3-element trapped triband Yagi, covering the 10-15 and 20m bands. The independent traps give the antenna better performance in terms of band-by-band tuning possibilities, useful bandwidth, gain, and front-to-back ratio. A 40m kit is available upon request, which, although allowing operation on 40m as a rotary dipole, degrades directivity on other bands when installed, as happens with all other similar antennas that use additional kits. Very robust construction, with stainless steel hardware, the high-insulation copper wire traps with fiberglass supports allow use with powers up to 2KW PEP SSB.
For optimal operation, it is recommended to mount it at a height of at least 4-5m from the ground.
GENERAL SPECIFICATIONS PST33:
- Gain: 6-8 dBd
- Impedance: 50 ohm
- F/b: 20m 6-8dB, 15m 8-10dB, 10m 18-20dB approx
- Front to side: >20dB
- SWR: band edges within 1:1.8 (see graph)
- Boom length: 4m
- Turning radius: approx. 5m
- Wind area: 0.6m2
- Weight: approx. 18kg
- Accepts mast from: 48mm (standard) or 60mm (optional)
- Material: AL6060T6, stainless steel hardware.
