A high angle radiating antenna designed for ionospheric propagation over short to medium distances. Specifically designed for ground to air systems utilising high performance and reliability.
FEATURES / BENEFITS
The Tandem Delta is a derivation of the RFS series of delta antennas.
Unlike the standard delta or other travelling wave antennas, where radiation results from a wave travelling upward to a resistive termination at the apex, the Tandem Delta does not incorporate a terminating resistor. All input power is therefore radiated and, in consequence, these new antennas have a higher gain than the standard delta. Furthermore, removal of the terminating resistor means that higher power ratings are more readily achieved.
Because of its high radiation angle characteristics, the Tandem delta antenna is less prone to long-distance interference and local electrical noise. It is strongly recommended for high-grade communication networks.
Tandem Delta antennas operate completely independently of ground conditions. Their polarisation is elliptical.
RFS masts, and stub masts for this antenna, are available as options.
refer to graph
Azimuth Radiation Pattern
Omnidirectional (refer to plots)
Maximum Power Rating
20 average, 80 PEP
7/8" EIA (10kW)
1-5/8" EIA (20kW)
Open wire balanced line (20kW)
50 unbalanced with balun
Antenna Ground Dimension
60 x 60
Wind Survival Rating (no ice)
Wind Load Comment
Material - Guys
Galvanised steel and heavy duty fail-safe insulators