@@tonymadison8948 YES. PIM - passive intermod is prevalent, as measured by MANY professionals. Noise amid the dissimilar metal corrosion is undesireable. Aluminum oxidizes always, to become non-conductive in it's contact with the useless tinned shiedl. Also mechanically very poor, even if you use the TIMES PRESCRIBED crimp connections. 100x worse if you try to solder PL-259s to it. Silicon Valley RF dev firms wholly rejected Times' introduction of the product in commercial use. But "oh my" how the specs and price sounds so 'great' to hams.
Thank you Sir!
Great presentation….
Good presentation. 'Thanks', Marcel!
+Joe M You're very welcome!
It was hard to hear, but was it stated that LMR400 was bad for repeater systems? about 30min into the presentation.
This is true. The Al foil with copper braid is an intermod generator and tends to cause issues in full-duplex applications.
Even with a low power repeater 25 -50 watts?
@@tonymadison8948 YES. PIM - passive intermod is prevalent, as measured by MANY professionals. Noise amid the dissimilar metal corrosion is undesireable. Aluminum oxidizes always, to become non-conductive in it's contact with the useless tinned shiedl. Also mechanically very poor, even if you use the TIMES PRESCRIBED crimp connections. 100x worse if you try to solder PL-259s to it. Silicon Valley RF dev firms wholly rejected Times' introduction of the product in commercial use. But "oh my" how the specs and price sounds so 'great' to hams.