ABS is better than Fiberglass from my experience in creating radomes out of both.
The spacing between the radiating elements of the antenna and the panel is critical. You might find a particular spacing that could even give gain in some circumstances. It needs to be adjusted for lowest loss. From: Peter Kranz Sent: Wednesday, April 08, 2015 4:32 PM To: [email protected] Subject: [AFMUG] Concealment Panels Anyone have much experience with molded concealment panels? On a particular structure, the tower owner added panels in front of our equipment to great detriment.. Looking for an alternative product that won’t crap on our parade. We performed testing today at 5.8 Ghz.. Here is a table of before and after signals for 5 customers we took measurements from Before / After / Delta HC -56.0 / -57.4 = 1.4 RO -63.7 / -65.2 = 1.5 WB -58.7 / -60.5 = 1.8 SF -59.9 / -61.8 = 1.9 GG -60.7 / -62.5 = 1.8 As you can see the average attenuation of the panel was measured to be -1.68dB (a 20% reduction in signal level).. This is similar to the vendor provided attenuation number of 1.31dB for straight on and -2.66dB for 45 degree 45 degree angle: -Peter
