[ICOM] AH-4 help

Larry Winslow larry_w at comcast.net
Thu Dec 8 02:02:48 EST 2005


Now why didn't I think of that??? Sometimes we 
miss the obvious. I'll give your suggestion a lot 
of thought. The thing that pops into my mind is 
that the vertical surfaces of the apartment 
building are what's called "rockcrete" which 
means there's chicken-wire type mesh under the 
surface. Still your idea has a lot of merit.

Thanks
73 - Larry WØNFU
larry_w at comcast.net


At 10:55 PM 12/7/2005, you wrote:

>Larry:
>    Rather than shorten the antenna up, why not 
> just fold it back towards the ends and it should still work ok.   Fern
>
>
>
>
>----- Original Message ----- From: "Larry Winslow" <larry_w at comcast.net>
>To: "ICOM Reflector" <icom at mailman.qth.net>
>Sent: Wednesday, December 07, 2005 11:39 PM
>Subject: RE: [ICOM] AH-4 help
>
>
>My thanks to all who made suggestions. I'm only
>considering the AH-4, and now other models, for
>my situation. The biggest negative with the AH-4
>is that the antenna wire would have to be
>directly above the power lines that feed the next door neighbor.
>
>I'm considering mounting a mast on the roof using
>a suggestion I found on eham.com. The guy came up
>with the idea of sliding some Sched-40 pvc piping
>into a breather pipe on the roof. I could then
>use the dipole attached to mast. Of course I'll
>put guy ropes to the roof facia for stability.
>
>My antenna is a 90 foot B&W wide-band folded
>dipole which has been very reliable for me. My
>roof is only 62 feet so I contacted B&W and
>queried them about reducing the length of the
>antenna. Their response was quick & the only
>affect of shortening the antenna is the raising
>of the lowest frequency of operation.
>
>Again - thanks
>
>73 - Larry WØNFU
>larry_w at comcast.net
>
>At 04:14 AM 12/6/2005, you wrote:
>
>>You could make a roof top mount out of lumber and concrete blocks. No
>>holes in the roof required. I use this method to support my weather
>>station on the flat roof over my pool deck. I believe Channel Master
>>makes a version to mount a 4' dish antenna on a flat roof. If you want
>>more info contact me off list.
>>
>>Julio, W4HY
>>
>>-----Original Message-----
>>From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net]
>>On Behalf Of Larry Winslow
>>Sent: Tuesday, December 06, 2005 3:26 AM
>>To: icom at mailman.qth.net
>>Subject: [ICOM] AH-4 help
>>
>>
>>I've lost my tree to construction so my dipole
>>had to come down. I live in an apartment and the
>>owner of the building, my father-in-law, won't
>>let me put a vertical - he's afraid of rain
>>leakage due to the flat roof. One thing I'm
>>considering is an AH-4 with a looooong wire.
>>
>>I have an IC-765 and need to know how to control the AH-4 with the 765.
>>
>>Any suggestions?
>>
>>73 - Larry WØNFU
>>larry_w at comcast.net
>>
>>----
>>Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net Icom
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>>
>>----
>>Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
>>Icom Users Net: Sundays, 1700Z, 14.316 MHz
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>
>----
>Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
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