I haven't kept up on this antenna thing, but I'd guess in a window would
be better, even with less of a ground plane. Larsen use to make
antennas that didn't require a ground plain, I think po 150 was the one,
had a connector on the bottom of the coil that fit a standard so 239
mount. It was a half wave and did not require a ground. I use to use
them on tractor cabs with fiber glass tops and so forth.
73
Butch
WA0VJR
Node 3148
Wallace, ks.
On Sat, 17 Aug
2013, Tom Behler wrote:
> Rob:
>
> I will check out the ceiling panel option, but suspect that could get me
> into some problems.
>
> Will keep an open mind, though.
>
> Tom Behler: KB8TYJ
>
>
> ----- Original Message -----
> From: "Rob Hill" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, August 17, 2013 2:13 PM
> Subject: Re: 2-meter Antenna Challenge
>
>
>> Tom I wonder if you can remove a ceiling panel sto accommodate the height
>> of
>> the antenna... I suspect you've considered that and it would be a bit
>> unsightly, I guess.
>>
>> I plan to get a similar rig soon to reward my, hoped-for, success on the
>> extra test at the end of the month.
>>
>>
>>
>> Rob
>> K5HMS
>> -----Original Message-----
>> From: Tom Behler
>> Sent: Saturday, August 17, 2013 10:05 AM
>> To: [log in to unmask]
>> Subject: 2-meter Antenna Challenge
>>
>> Hi, all.
>>
>> I hope I am not wearing out my welcome back to the list, but I have a
>> challenging antenna situation I'm currently facing in the new faculty
>> office
>> I will be occupying starting this Spring semester.
>>
>> I currently have an old Kenwood TMV7A in the office, with which I have
>> always had at least some luck, in terms of getting into our local 2-meter
>> repeater. The repeater is about 15 miles from the University.
>>
>> However, in my new office, I am finding that the small mag-mount antenna I
>> have always used simply does not allow me to reach the repeater
>> consistently. Currently, I have the magmount sitting on a small metal
>> bracket on the window sill in the office. It is right next to the window,
>> so I would think that should help. However, I do not have much of a
>> ground
>> plain for the magmount. I also think there is some de-sensing going on
>> with
>> the steel of the office building, and with other surrounding computer
>> equipment in the office complex.
>>
>> I do have a filing cabinet on the other side of the office that I could
>> use
>> as a ground plane, but the top of the filing cabinet is too high, and
>> there
>> is not enough space between it and the office ceiling to accommodate the
>> magmount antenna.
>>
>> This obviously is a very challenging situation, and I also have to be at
>> least somewhat concerned with appearance, in terms of not having an
>> ugly-looking antenna that might draw more attention to what I am trying to
>> do than I might want.
>>
>> Do any of you have any suggestions as to how to help the mag-mount perform
>> better in this situation?
>>
>> Or, might I be better off considering another type of antenna, such as a
>> J-pole of some sort.
>>
>> I would appreciate any thoughts.
>>
>> Tom Behler: KB8TYJ
>>
>
>
|
