[SOC] 2BDQ trap dipole

[JMcAulay]

At 02:27 PM 03/18/2002 -0500, John L Sielke   W2AGN wrote, in part:

>While digging through some stuff, which came from my Dad's old house, I
found 
>a couple Hy-Gain 2BDQ traps, for a 80/40M dipole. I though just for the heck 
>of it when I had a chance I might add them to my 40M dipole. There is room 
>for another 25' or so on each end, and I understand the trap dipole is 101' 
>long.
>
>What I am not sure about is if they will load the 40M dipole so I will need 
>to trim it down. Does anyone have the dimensions for the wire on the old Hy 
>Gain trap dipole? These things were never used (still in wrapping), but they 
>have to be at least 25 years old. 


Without consulting anything, seems to me the inner portion of the dipole
should be cut as an ordinary 40M antenna (at the resonance of the traps).
After all, the traps provide very high Z, so that -- supposedly --  nothing
gets through them to the outer portions of the antenna.  Hence the inner
part ought to be just your plain, garden variety 40M dipole.  Of course,
nothing ever works as it should, so you may have to do a little adjusting. 

73
John  WA6QPL  SOC 263