Hi Brent: yes I agree. since getting the SDR, now about two mo ago, I see things I never knew were there. probably repeating, but the better sounding AM needs about 4 to 4.5 each side if the receiver can handle that, a lot do not. that is just one reason why I stay out of the 3880 area unless a period of low activity. I was on 3715 last night for about 2.5 hours and ssb started to move in on both sides. I think AMers are much more aware of bandwidth and common courtesy than a lot of ssb. I watch the display and look for a spot that is open for 10 kc, or hopefully more. there is a group that will fire up frequently on 3710 that clearly does not give a damn. they send photos and it is full modulation of the entire bandwidth they are using, about 3 kc, the rx does not like that as much as just ssb. I listened a few days ago to see just who they were, never heard a call sign, however, when talking to each other they used the names BUGGER and LIZARD. Again, yes, I do have my prejudices, but it made me wonder just what sort of photos they were sending, they were talking about a girl with tattoos at one point. At the risk of being told I have an attitude problem, I would likely find a way to QRT if I got a call from BUGGER or mad dog or similar. Bernie ----- Original Message ----- From: "Brett Gazdzinski" <[email protected]> To: "Discussion of AM Radio in the Amateur Service" <[email protected]> Sent: Tuesday, March 09, 2010 8:23 PM Subject: Re: [AMRadio] AM IARU Region 2 Bandplan
>I usually limit my audio to between 4 and 6 Kc. > I cant hear anything over 3000 Hz anyway, so it all sounds like ssb, even > if > I am not on the radio! > > What I don't like, and what does all AM'ers a disservice is guys who get > on > in prime time, run over 10Kc on both sides of the carrier, using a > multiband > compressor that keeps the entire bandwidth at a high level, and takes out > 4 > other qso's. > > If you take out 25 or 30 KHz and center at 3880, you take out 3765 to > 3895. > > People see that (and with sdr radios, you CAN see it), and think why don't > they ban that crap! > > Brett > N2DTS > > > > > > ----- Original Message ----- > From: "Bernie Doran" <[email protected]> > To: "Discussion of AM Radio in the Amateur Service" > <[email protected]> > Sent: Tuesday, March 09, 2010 6:50 AM > Subject: Re: [AMRadio] AM IARU Region 2 Bandplan > > >> reading these comments about bandwidth suggests to me that there are more >> than a few the believe under 3 kc bandwidth is fine for AM as it >> conserves >> space. if so why does one even operate AM? why not use only ssb, psk or >> cw? >> better yet do not operate at all, look at the space saved then!!! I >> thought >> most operated AM because they like the quality of the audio produced. one >> thing the SDR-Iq that I acquired a few months ago does rather well is >> show >> the spectrum, on the local BC stations they seem to limit sharply at a >> total 15 kc. I have watched the male voice spectrum and with the >> exception >> of the S,F and C sounds nearly all is below 5 kc each side. narrowing to >> 3 >> kc with below 300 cutoff turns those same voices into something that is >> not >> really pleasant to listen too. I have noticed the same effect on a few >> that >> are trying AM with a rice box that uses only 300 to about 3kc. the same >> thing can be observed with the ESSB guys on the bottom of 80, they sound >> much better, but still a little strange. >> >> again, this is good reason to operate down low on 80 where there is >> usually >> plenty of room. if there are contests it might be best to simply avoid >> operating, not only to give the contesters a band, but to simply avoid >> the >> QRM created by others. However, there is so much racket no one would >> notice if an AM station was 30 kc wide during the contests. >> >> RE the comments about power, the antenna is far above every thing else, >> listen to what the strong stations are using, rarely does an out of the >> box >> multiband antenna come in at the top of the heap. Dipole, open wire >> feeders >> from a good antenna matching device (balanced link coupled) is the >> simplest >> way to go with a multiband operation. The always perform well. the >> comments about " use only the " necessary power and/or bandwidth" I >> believe >> that to mean full quieting and the audio quality of a person sitting the >> same room with me. It does not mean if I am on a particular freq for an >> hour >> or so and someone decided to operate 1.5 kc away that it is my fault for >> causing QRM to them. some of these comments sound similar to those I >> have >> seen where it is believed that we are supposed to be on certain freq ( >> channels) . At least there has been a lot of chatter on this topic. >> that >> is good. 73 Bernie >> >> >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Searchable Archives: http://www.mail-archive.com/[email protected]/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: [email protected] >> To unsubscribe, send an email to [email protected] with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/[email protected]/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: [email protected] > To unsubscribe, send an email to [email protected] with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: [email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
