|Includes Rechargable Battery||No|
|Item model number||PCT-BPF-980-1150|
|Product Dimensions||7.87 x 2.03 x 2.03 cm; 9.07 Grams|
ADS-B Dual 978 MHz + 1090 MHz Band-Pass SMA Filter
|Price:||+ S$7.23 Delivery|
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- 1090MHZ ADS-B / Mode S Filter
- SMA Female to SMA Male
- Passes range 980MHz - 1150MHz
- Reduces RF noise, increasing number of ADS-B/Mode S messages
- Ideal for RTL-SDR USB Dongle receivers like PiAware
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1090MHz Mode S filter with SMA (female to male) connectors. Designed to reduce interference and significantly improve valid aircraft transponder message rate of ADS-B/Mode S receivers. Passes range 980MHz - 1150MHz. Impedance is 50ohms and insertion loss is <2.5dB.
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Most helpful customer reviews on Amazon.com
If you don't understand the numbers, what that means is this thing knocks out the interference from nearby cell towers so your SDR can hear the ADS-B signals from local (and not so local) aircraft.
A good friend with a very close cell tower is seeing very good increases in the number of aircraft and aircraft range with a popular ADS-B software package and this filter.
This is a very good filter for ADS-B at a very reasonable price!
As I live in a congested urban area, and I happen to know there's a cell tower about 2500 feet from my house, I figured I'd try out the SMA filter *despite* my already owning the FlighAware ProStick Plus with the built-in filtering. Putting the SMA filter own increased the traffic I could pick up by a factor of two, and it extended my visible range by about 1.4 nm.
The range and numbers are much greater when I do a comparison while my hand holds the antenna outside the window. Once mounted externally I'll have a much fuller view of the regional sky.
Adding this filter, I'm now getting another 20-30% more data in cleanly, though this is not for adding range. But, you get much more location information and datapoints!