RadioBanter

RadioBanter (https://www.radiobanter.com/)
-   Dx (https://www.radiobanter.com/dx/)
-   -   Not enough height/clearance for a Log Periodic - any suggestions? (https://www.radiobanter.com/dx/9157-not-enough-height-clearance-log-periodic-any-suggestions.html)

Je Forget November 17th 03 02:24 AM

Not enough height/clearance for a Log Periodic - any suggestions?
 
Okay here's the deal,

I would absolutely love to put up a Log P, but lamentably my tower is only
42' to the thrust bearing, and if I put up even the smallest Tennadyne T-6,
the 38' (2x19') rear element would severely overhang not only the neighbors
yard, but their house as well. (they are 24" from the lot line.)

My other concern is ice. That is to say, when it ices up (as it will
inevitably do several times each winter) the longer elements could droop to
the point where they could strike his roof, mine, and a nearby tree. (heck,
the balance between peace among neighbors and a decent antenna system sure
is frustrating...)

So, I have to keep it small, but I would like it to cover more than the
usual 20-15-10 devices, and still have some level of performance. (gee,
while I'm at it, let's have it defy gravity, be completely invisible, and
guarantee a 5/9 copy to even the remotest corners of the globe... but
seriously folks, I need some real life testimonials here!)

I have a brand new TH3JR (purchased 5 years ago) still in the unopened box,
but I'm thinking 'more bands' would be nice.

I found a local place that has some interesting antennas, but I find few
references to them and their performance on the web. (that's not to suggest
they are not good devices, heck, they could be a well kept secret little
gem.) Here's a link to the one I'm looking at:

http://www3.sympatico.ca/tgmc/mq-2.html (the actual antenna)
http://www3.sympatico.ca/tgmc (general home page - links to antennas)

It's quite compact, and a very different configuration from anything I've
seen elsewhere, but I have never heard of anyone using one.

So, what's out there that's small and yet delivers decent performance with
20-17-15-12-10 in mind?

Any helpful firsthand experience passed along would be very much
appreciated!

Pat, VE3PMK

(I'm slowly getting spam under control, so please post replies here.
Thanks!)


Ragnar Otterstad November 22nd 03 12:55 PM


"Je Forget" skrev i melding
.. .
Okay here's the deal,

I would absolutely love to put up a Log P, but lamentably my tower is only
42' to the thrust bearing, and if I put up even the smallest Tennadyne

T-6,
the 38' (2x19') rear element would severely overhang not only the

neighbors
yard, but their house as well. (they are 24" from the lot line.)

My other concern is ice. That is to say, when it ices up (as it will
inevitably do several times each winter) the longer elements could droop

to
the point where they could strike his roof, mine, and a nearby tree.

(heck,
the balance between peace among neighbors and a decent antenna system sure
is frustrating...)

Why not try a dipole with open wire feeder and ATU in the shack. It will
work on any frequency althou the efficiency will drop on the lower bands.
The length can be random - depending on availabel space.

73 Rag LA5HE



Ragnar Otterstad November 22nd 03 12:55 PM


"Je Forget" skrev i melding
.. .
Okay here's the deal,

I would absolutely love to put up a Log P, but lamentably my tower is only
42' to the thrust bearing, and if I put up even the smallest Tennadyne

T-6,
the 38' (2x19') rear element would severely overhang not only the

neighbors
yard, but their house as well. (they are 24" from the lot line.)

My other concern is ice. That is to say, when it ices up (as it will
inevitably do several times each winter) the longer elements could droop

to
the point where they could strike his roof, mine, and a nearby tree.

(heck,
the balance between peace among neighbors and a decent antenna system sure
is frustrating...)

Why not try a dipole with open wire feeder and ATU in the shack. It will
work on any frequency althou the efficiency will drop on the lower bands.
The length can be random - depending on availabel space.

73 Rag LA5HE




All times are GMT +1. The time now is 11:45 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
RadioBanter.com