[NJARC] Practical Antenna Systems

[Al Klase]

Hi Jim,

FM broadcast is a considerably different environment than AM.  The 
wavelength is 100 time smaller, and the background noise is very low.  
One of the primary bugaboos is multi-path reception.  If you antenna 
doesn't have a reasonably clear shot to the transmitter, you pick up 
multiple reflections off various objects.  (including passing 
aircraft.)  Because the arrival times vary, the signals cancel out, 
causing deep fades and noise.  Problem is similar to "ghosts" on analog TV.

The four-element Yagi you linked to is probably as good as it gets. It 
may drive you to include a rotator if you listen to stations from 
different directions.

Omnidirectional antennas can work pretty well if you get them up high, 
and in the clear: AMAZON AGAIN 
<https://www.amazon.com/ViewTV-VT-FM20-Outdoor-Omnidirectional-Antenna/dp/B075LK18P5/ref=sr_1_5?ie=UTF8&qid=1534038502&sr=8-5&keywords=best+fm+radio+antenna&dpID=41JnAmqn3oL&preST=_SX300_QL70_&dpSrc=srch>
I have a similar antique  "turnstyle" in my attic, here in Jersey City, 
that works much better than rabbit ears or twin-lead dipoles located at 
the radio.

One of my long-term frustrations is that I've never encountered a 
tube-type FM radio that was any damn good compared to cheap 21st-Century 
sets.  That includes the famous Marantz 10B, built-in oscilloscope and all.

Hope that help,
Al

On 8/11/2018 9:34 PM, Jamespdoranjr--- via NJARC wrote:
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
>
>
> These are very cool; they are all for AM and SW.  any suggestions for 
> FM?  What about these
> https://www.amazon.com/dp/B00NRHAV2K/ref=cm_sw_r_sms_c_api_w44BBbW7N8DY1
>
> Sent from my iPhone
>
> -- 
> Al Klase – N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
>> ______________________________________________________________
>> NJARC mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/njarc
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:NJARC at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>
>
> ______________________________________________________________
> NJARC mailing list
> Home: http://mailman.qth.net/mailman/listinfo/njarc
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:NJARC at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

-- 
Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/mailman/private/njarc/attachments/20180812/e6d281f0/attachment.html>