[TowerTalk] TV antennas on HF towers

[Ryan Jairam]

My pair of 4228s are mounted to the side of tower. I use a regular 1
inch TV mast which is clamped using split hangers and angle brackets.

I did it this way because I don't want them rotating with the ham
antennas. I want the antenna array fixed in one direction (NYC).

BTW, I have the old 4228A not the new 4228HD (which is an inferior antenna).

Ryan, N2RJ.

On Wed, Apr 28, 2010 at 8:32 AM,  <ssouva at twcny.rr.com> wrote:
> I have considered moving my 4228 up on the tower, but didn't think the u-bolts would fit the 2" mast coming out of the top of tower.  Did you modify the 4228 or is it factory specs?
>
> 73
> Scott, KG2S
>
> ---- Ryan Jairam <rjairam at gmail.com> wrote:
>> If your antenna system is good enough so that you get strong signals
>> from your desired stations you will have no problems. If you have
>> marginal signals you will get breakups on digital signals. I don't
>> remember what happens on analog because there's just one analog
>> station I can receive here (W36AZ ch 36) which I can get in digital
>> anyway. I operate at around 800 watts and there's no interference on
>> my TVs.
>>
>> This is my TV antenna setup -
>>
>> 2 x Channel Master 4228 (16 bay bow tie array, with a reflective screen) for UHF
>> Winegard YA1713 Yagi for VHF 7-13
>> Antennacraft 10G212 30dB preamp
>>
>> The antennas are about 65ft on the tower which is good enough to get a
>> digital lock and no dropouts on the NYC stations which are ~49 miles
>> away. Only Fox 5.1 WNYW-DT has a little tiling when I key up because
>> their antenna pattern I think reduces the signal towards here because
>> of co-channel with WMCN 44 in Atlantic City NJ.
>>
>> 73
>> Ryan, N2RJ
>>
>>
>> On Tue, Apr 27, 2010 at 4:26 PM, Charles Coldwell <coldwell at gmail.com> wrote:
>> > I've heard of/read about people who put television antennas (for
>> > receiving  OTA broadcast TV) at the top of towers that are also used
>> > for HF antennas.  Does this risk blowing out the receiver in the TV if
>> > it picks up harmonics from the HF transmitter?  I suppose one could
>> > use a low pass filter on the transmitter/amplifier output, but I would
>> > still expect to get some RFI on the TV.
>> >
>> > Does anyone have any experience with this sort of setup?
>> >
>> > --
>> > Charles M. Coldwell, W1CMC
>> > "Turn on, log in, tune out"
>> > Winchester, Massachusetts, New England (FN42kk)
>> >
>> > GPG ID:  852E052F
>> > GPG FPR: 77E5 2B51 4907 F08A 7E92  DE80 AFA9 9A8F 852E 052F
>> > _______________________________________________
>> >
>> >
>> >
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>> >
>>
>>
>>
>> --
>> Ryan A. Jairam,
>> _______________________________________________
>>
>>
>>
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>
>



-- 
Ryan A. Jairam,