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[TowerTalk] Stacked TH-11 and 40-2CD Spacing and Interactions?

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Subject: [TowerTalk] Stacked TH-11 and 40-2CD Spacing and Interactions?
From: JC_Smith@designlink.com (JC_Smith@designlink.com)
Date: Wed, 30 Apr 1997 14:50:16 GMT
W8RU writes:
===== snip =====
I am currently pondering an antenna stack starting with 
a HyGain TH-11 with a Cushcraft 40-2CD about 8ft above it.  
Is this nominally enough space between the antennas?

I remember hearing somewhere (the infamous "somewhere") that the 
40-2CD has a secondary resonance around 18 MHz.  Can anyone verify this?  
If this is true, am I setting myself up for an interaction problem when 
I use the TH-11 on the 17m band?  
===== snip =====

I was thinking of stacking one with a Mosley TW-33-XL (30, 17 & 12) so I'd sure
like to hear of any interaction problems on any WARC band.  However, back to
Ron's question, doesn't he have to worry a lot more about operating the TH-11
on the 15m band?

73 - JC,k0hps@amsat.org




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