Search found 85 matches

by ai4i
Fri Aug 21, 2009 4:58 am
Forum: FM Radio
Topic: FM Polarity
Replies: 18
Views: 3181

Re: FM Polarity

R. Fry, I have found this discussion most interesting. Thanks for your explanation. As a ham operator, I have pondered this as well. Nice to know the facts. I have pondered over why their are no circularly polarized repeaters, as handhelds are always held at whatever angle is most comfortable for t...
by ai4i
Thu Aug 20, 2009 2:37 pm
Forum: FM Radio
Topic: FM Polarity
Replies: 18
Views: 3181

Re: FM Polarity

This stuff is beyond me. Perhaps polarity vs polarization refers to capacitive fields vs magnetic fields?
I will consult with my longtime authority on the matter, an ice delivery guy called Eli.
His circuits keep leading and following each other around in circles!
by ai4i
Thu Aug 20, 2009 3:43 am
Forum: FM Radio
Topic: FM Polarity
Replies: 18
Views: 3181

Re: FM Polarity

The best car radio antenna system I have ever seen, OEM or aftermarket, was on some Japanese car several years back. It used a whip and either another whip or a window antenna for spacial diversity reception. Of course, one could only realize the full advantage by using the original stereo system wi...
by ai4i
Wed Aug 19, 2009 3:05 pm
Forum: FM Radio
Topic: FM Polarity
Replies: 18
Views: 3181

Re: FM Polarity

I had never heard of them before a web search on FM and polarity sent me there (I know, ignorance is no excuse).
I really need to put an antenna on my Crown Vic and stop crying about how my window dummy load works so poorly when I drive broadside to my favorite stations.
by ai4i
Wed Aug 19, 2009 1:00 pm
Forum: FM Radio
Topic: FM Polarity
Replies: 18
Views: 3181

Re: FM Polarity

You've been reading the sales blabber published by the companies who make pirate antennas, haven't you? :lol: Not guilty, but I should have listed my sources: NYIT fmbroadcastantenna.com Is there a standard as to left hand / right hand polarity for either FM or TV stations in this country, and does...
by ai4i
Wed Aug 19, 2009 12:43 pm
Forum: SW Radio
Topic: Couple of cool SW broadcast antennas
Replies: 5
Views: 3500

Re: Couple of cool SW broadcast antennas

SRI's operation is commensurate with the size of their country.
by ai4i
Wed Aug 19, 2009 12:38 pm
Forum: AM Radio
Topic: C-Quam / Motorola 1310
Replies: 9
Views: 1882

Re: C-Quam / Motorola 1310

cameron wrote:Also - a little-known fact - some of the new IBOC chipsets also have C-Quam.
Sony, manufacturer of some of the chips said that they have no plans to resolve the issue of their chips' reversing the left and right channels in the C-Quam mode.
by ai4i
Tue Aug 18, 2009 10:01 pm
Forum: FM Radio
Topic: FM Polarity
Replies: 18
Views: 3181

FM Polarity

Recently read a review of vertical networks in Holland, Israel, and the UK which suggest that CP offers minimal advantage to listeners, but maximum advantage to equipment manufacturers and their sales staff. Do the rules still specify that normally a full power station can transmit a vertical compon...
by ai4i
Tue Aug 18, 2009 9:42 am
Forum: FM Radio
Topic: Appleton, WI "The Avenue" 91.1
Replies: 11
Views: 2624

Re: Appleton, WI "The Avenue" 91.1

Unable to get them to stream either, I sent this to Denver Plett at "The Avenue": I discovered "The Avenue" on this forum: http://broadcastengineering.info/viewtopic.php?f=3&t=2086&p=13200#p13200 As you can read, we have some potential fans who can not listen, for one reason or another. You are welc...
by ai4i
Sun Aug 16, 2009 4:19 pm
Forum: AM Radio
Topic: WARM
Replies: 25
Views: 3725

Re: WARM

A child in the nineteen sixties, we visited with relatives in Carbondale, sixteen miles east northeast of Scranton. Must have been in their null at night, remembering that WABeatleC sounded at least as good. From the looks of their map, purhaps they should be transmitting from a few miles north nort...
by ai4i
Sat Aug 15, 2009 6:23 pm
Forum: FM Radio
Topic: Appleton, WI "The Avenue" 91.1
Replies: 11
Views: 2624

Re: Appleton, WI "The Avenue" 91.1

All the Univision stations branded, "La Kalle", I have often thought someone should use, "La Avenida"!
by ai4i
Thu Aug 13, 2009 11:09 pm
Forum: AM Radio
Topic: Synchronous Amplifiers
Replies: 27
Views: 4572

Re: Synchronous Amplifiers

Doing what you suggest is actually drowning out the offending audio by creating noise which is louder than their audio. The rapid fading in and out, up and down, back and forth, day in and day out, for months, for years, forever, ad infinitum, ad nauseum, as an ancient Chinese torture method, when w...
by ai4i
Thu Aug 13, 2009 4:55 am
Forum: AM Radio
Topic: Synchronous Amplifiers
Replies: 27
Views: 4572

Re: Synchronous Amplifiers

boiseengineer wrote:What???
In other words, you mask the offending audio by drowning it out with louder "noise" audio.
by ai4i
Tue Aug 11, 2009 6:40 pm
Forum: AM Radio
Topic: Synchronous Amplifiers
Replies: 27
Views: 4572

Re: Synchronous Amplifiers

boiseengineer wrote:It masks the offending stations audio to a point.
By introducing even more noise!
I liken its effect to trying to prevent a pirate radio station from interfering with a licensed station by jamming the pirate station.
by ai4i
Tue Aug 11, 2009 5:40 am
Forum: AM Radio
Topic: WARM
Replies: 25
Views: 3725

Re: WARM

Deep Thought wrote:...just another day at the office. :)
You seem to understand this for the science that it is, rather than the art many of us wish it were!