TVI isn't so muchof an issue anymore...not like it used to be.
The issues now are getting into computer speakers and those crappy bed side
clock radios and sometimes answering machines and so on.
You can get into a buildings telephone system as well.  These are usually
due to bad wiring, poor insulation and shorts in different places, but they
still happen and most people assume it is the radio operators fault.
If you have a well designed antenna and some sort of ground system, you will
probably not have any kind of RFI problems, except for perhaps right in the
near field of the antenna within your own residence.
I think using a counter poise can help to bleed off any stray RF...also use
of a balun and a good Low pass filter will help allot.
Most modern rigs do use low pass filtering as part of the design, but it
sometimes isn't quite enough to totally brickwall frequencies above 30MHZ.
A long wire type of design has inherent RFI issues....as do antennas such as
J  polls and antennas that have a very very high feedpoint impedance.
Your best bet for an apartment is some sort of portible vertical or screw
driver type of antenna out on the balcony or set up in the living room.
Something that doesn't require miles of ground radials and that is
relatively efficient...there are quite a few brands like that.
Especially if you are interested in freqs only up to maybe 40 metres.
73
Colin, V A6BKX
----- Original Message ----- 
From: "Bill Deatherage" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, May 27, 2008 2:34 AM
Subject: operating in apartments


> I was reading the information on the Par end fedz antanna and found it =
> interesting.  I used to love to work 10 through 40 meeters.  so 20 =
> meeters would be interesting to me.  one question I thought of was how =
> much of a problem would a person have wit television interference on =
> this  band?  I was wondering now that most people use cable and =
> satellite for television reseption has this minumized the problems =
> people has had with TVI in the past?  although I have never used it I =
> heard one problem people who used CB had was CB transmited on 27 mHZ and =
> the second harmonic of 27 is 54 the old VHF television band.  I was also =
> curious to know does any one know what frequency satellites use to =
> transmit signals back to televisions?
> Before I lived in a moble home when I was on 10 through 40 meters.  =
> since apartments are so much closer together will this increase the =
> problems I would incounter with TVI?
> Thank you for the information in advance.
> Bill WB4YKL
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG.
> Version: 7.5.524 / Virus Database: 269.24.1/1466 - Release Date: 5/25/2008
6:49 PM
>
>