[TenTec] Openwire Feed and Transformer

[Lee A Crocker <lee_crocker@yahoo.com>]

He is using it for 160.  His feedline is set up for
450 ohms (#4 aluminum wire on 5" centers) with 9:1
transformers.  It would work as well on higher freqs. 
I did the calcs for 28mhz and the loss for 1000ft is
about 0.6dB for a flat load.  Pretty impressive to say
the least.  

You could buy the transformers from DX engineering if
you didn't want to build them, the real key is to
design the line impdedance to match the transformer
ratio.   

His measured loss is 0.3 dB at 1.8mhz for the 1000ft
run including transformers.   


73  W9OY

 
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec