Dual-band antenna?


#1

Since it looks like FlightAware discontinued their 978/1090 dual-band antenna, does anyone know of any other outdoor 978/1090 antennas? Or know what the bandwidth of the FlightAware 5.5dBi antenna is?


#2

DPD has 978 and 1090 Mhz Antennas
http://www.dpdproductions.com/page_vhf_air.html#adsbout

A wideband “Discone” antenna would work but has a huge bandwidth and little gain.


#3

Yes, they have 1090 and 978 monoband antennas, but doubling up on antennas at $150 each (and then double the coax or double the diplexers) isn’t what I’m looking for. I’d like a single dual-band antenna that I can split to two receivers via a power divider or diplexer.


#4

The loss and extra noise from each device may not be worth it.
If you were closer, I would give you mine(FA Dual band).


#5

According to my antenna analyzer the FA may work reasonably well at 978, not ideal, but not deaf.


#6

It’ll work, but the test performed by the RTL-SDR Blog showed a 10:1 SWR at 978, as opposed to 1.15:1 on 1090.


#7

Better than that on my analyzer, it fell into one of a number of dips in VSWR the antenna has.