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Author Topic: 1090 Mhz attenuation  (Read 2620 times)

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CYFC

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1090 Mhz attenuation
« on: November 19, 2011, 12:40:27 PM »
I was wondering, what is the RF attenuation for 1090 Mhz through common window glass....?

neroon79

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Re: 1090 Mhz attenuation
« Reply #1 on: November 19, 2011, 02:08:12 PM »
What's your definition of common window glass?
Greetings from northern Germany, Ingo
11.75nm ESE of EDDV

SW: ANRB v5.00.072/6.01.001 on WIN10 64Bit Pro&Home
HW:
Ant.: DPD Productions ADS-B Vertical Outdoor Base Antenna
AMP: Kuhne electr. KU LNA 1090 A TM
Cable: 25m of ECOFLEX 15+
NB: Asus P53E 24/7 op.
PC: 28"4K + 24" Monitor
AirSpy mini @RPi3

CYFC

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Re: 1090 Mhz attenuation
« Reply #2 on: November 19, 2011, 03:21:51 PM »
Common: as in familiar, as in local, as in expected to find... window glass can be treated with solar reflection materials, tinted with various accent colours....hence, my question is...what would the attenuation be in
'common window glass, as found locally, that a person would be expected to find, and be familiar with....

tarbat

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Re: 1090 Mhz attenuation
« Reply #3 on: November 19, 2011, 03:42:47 PM »
I was wondering, what is the RF attenuation for 1090 Mhz through common window glass....?

20db for K-glass double glazing, according to http://www.airnavsystems.com/forum/index.php?topic=4789.msg48158#msg48158