1/4 wave tuning frustrations

[D-MAX 2112]

Hello All

So i have a set of 1/4 waves spaced 74 1/2 inches apart ..and i cant get any better then a 1.4 swr.. i tried all combo's ..1.4 is the magic number.
Strange thing is i tune the driven stick to 1.4 then install my reflect stick... it doesnt change anything. no matter how high or low it is.
Observation... i have a shorty antenna from Noisemaker.. with the reflect stick .. its 1.1 R55 x-0.. and works very well..
So with a tall 1/4 wave driven stick i cant get it to tune. What are the characteristics of too short spacing?. Do i need to go wider spacing with the taller driven stick?

Thanks In Advance

D-MAX- 2112 -NJ -

aka RDX Horn "Killa"

[noisemaker]

Im going to add to this. The same 2 sticks on my suburban tune perfect spaced at 86". Im going to put my $$ on spacing and/ or the mount. I think u need more roof dude

[D-MAX 2112]

I have a welder.. i can make a bigger roof...!...maybe not..lmao

Im going to add to this. The same 2 sticks on my suburban tune perfect spaced at 86". Im going to put my $$ on spacing and/ or the mount. I think u need more roof dude

[coolbreeze]

call me. i need more info. 540-220-3724

[D-MAX 2112]

Noizy... im not giving up yet..!.. i can add an extension to the rear reflect mount if i have too.

[D-MAX 2112]

Breeze .. tomorrow evening..i will give ya a buzz..thanks.

[noisemaker]

Do it!! Lol. Heres a dumb thought. What if u isolate the hitch and tap the ground right at the base. I can make u an insulator 5" x 1.25" thick. Would have to lower the arm a few inches but is worth a try

[D-MAX 2112]

Meaning tap the ground right to the 3/8 24 stud?.. if so thats how i have it. i see what you mean the insolator to get the antenna seperated from the mount...correct?

[noisemaker]

just thought of this too - the mag mount may also be the culprit - you have a capacitive ground and a physical ground going on - even though the rear is grounded to the mag mount - the mags are making a different ground and that may be bugging it out.

[noisemaker]

here you go- i already have a couple made. bottom screws into mount/plate, stick goes on top, ground get bonded at top screw (bottom leave alone- no connection)