Topband: Waller Flag Question

K1FZ-Bruce k1fz at myfairpoint.net
Sun Sep 6 16:20:52 EDT 2015


It can be done. JC, N4IS has been doing it and has the DX contacts that 
most can not hear.. The proof as they say "is in the pudding"  He uses 
balanced twisted pair feed lines with  pre-amps, and other noise 
reduction techniques.. 
 
Check it out
http://www.qsl.net/k4fk/presentations/WF-receiver-antennas-SFDXAs.pdf
 
73
Bruce-K1FZ

On Sun, 6 Sep 2015 19:53:14 +0100, Andrew Ikin  wrote:

       Art Delibert wrote on Set. 6

snip

Art, The Wellbrook FLG100LN Flag Head amplifier may offer a partial
solution to the gain and IMD issue with multiple 50kW AM Tx. The amp. has a
23dB gain and a near to zero NF. The current production has an OIP3 of
+49dBm and OIP2 of +90dBm. Additional 17dB gain in the shack could be
afforded with a Dxeng RPA-1. 

Unfortunately, the Website details for the FLG100LN have not been updated to
reflect the new design. Basically the new FLG100LN is the ALA100LN Loop
amplifier with an 800 Ohm input matching/ Isolation transformer. 

73

Andrew Ikin
G8LUG

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