You are correct Brett except if anyone ever complained. If your signal
is clean and under 6-7 KC they probably wouldn't care because of the
fact that the signal at the receiver only moves just a bit with each
doubling of power.
I believe W6HLH is an example of what you say, as is a number of o
Bob wrote:
> All that is need for communications grade AM is 300Hz to 3KHz audio.
Just
> use a 6db/octave rolloff at 3KHz.
True, but DSB AM rig modulated with 300 to 3k audio certainly won't
fit into a 2700 Hz segment of the band -that's the problem.
Steve WD8DAS
sbjohns...@aol.com
http://
Well, there are "those" that I could swear are running a pair of 4-1000As!
I could plead ignorance due to not having an adequate device to properly
"measure" the PEP output.
But then my heart wouldn't be in it.
Guess I'm stuck between my conscience and the Beasts!
Bob - N0DGN
On 3/8/2010 8:46
No, I bet you could run twice the legal power for years and no one would
know...
After all, how can you tell the difference between a good antenna or twice
the power?
Brett
- Original Message -
From: "D. Chester"
To:
Sent: Monday, March 08, 2010 7:05 PM
Subject: Re: [AMRadio] AM IA
> The problem is that once the bandplan is adopted, essentially a treaty,
> the FCC would eventually need to modify the rules to align with it.
>
Not true.
You are confusing IARU with ITU. The International Telecommunications Union
formulates the international treaties that determine what freq
> I have enough of a time keeping the BEASTs reined in at 1500W PEP. If I
> set the microphone resting current at the specified in the TM at 40ma,
> the darn thing WILL hit 2500W PEP.
>
There is nothing in Part 97 that says we even have to have instruments
capable of measuring PEP. They specifi
> All that is need for communications grade AM is 300Hz to 3KHz audio. Just
> use a 6db/octave rolloff at 3KHz.
>
> There is not much 3KHz or higher energy in the human voice.And we are not
> supposed to be playing music.
>
> Bob Macklin
> K5MYJ
There is nothing in the rules that says we have to u
Yeah but Bob - if you want to make some kind of binding RULE out
of that vague requirement then your AM signal should only be
4 kHz wide, because under ideal circumstances the guy on the
other end could still understand you.
Oh, you might sound rather MUFFLED, but who cares so long as
you ke
My fau paux!
It is setting the Modulator bias. The manual says 40ma. I usually have
to dial it down a bit, or REALLY run the audio gain down a good bit.
Both my BC-610 and my T-213 put 400W out on pure carrier.
So I have to keep from "letting the horse run!". I didn't know what the
"actual"
mine goes out to about 4.5 kc, the S and F will stretch out to 7 kc, I have
no intention of changing it, I look for an area 10 or more wide and then sit
in the middle, if I can not find one I do not operate. in spite of that ssb
will still move 2-3 kc away and then bitch!! should we all just ru
No argument with what you said Ted. it is just a sad situation that will
probably bring us down. the one thing you left out is that those who have
are bound to share with those that do not!!" it's only fair" Bernie-
Original Message -
From: "Ted Gustafson"
To: "Discussion of AM Radio
Bob:
What do you set the resting plate current on your BC-610?
I run 40 ma on mine, but Eimac recommends 50 ma.
73, Barrie, W7ALW
- Original Message -
From: "rbethman"
To: "Discussion of AM Radio in the Amateur Service"
Sent: Monday, March 08, 2010 2:37 PM
Subject: Re: [AMRadio] AM I
I agree with Larry here. But I want to know where exactly does it give
dimension to bandwidth in Part 97? If what Bob says is true, then it really
doesn't matter. No where does it say 2700Hz, 3200HZ, 3500Hz or 6000Hz. My
beef with the ARRgghhL is, to paraphrase Nancy Sinatra, "messin' where they
I've read it time and time again!
AM DSB is A3E without question.
As the discussion I've been having off-list, I'll simply say that *IF*
someone can REALLY pick up the fact that BC-610s and T-213s are running
an extra 100cps on each sideband, then so be it.
It has been running that way for aro
Larry/NE1S wrote:
But many of us enjoy listening to, and transmitting, full-fidelity
> audio. The human voice DOES sound better (to our ears, at least) when we
> do this. And if there is room on the band when we choose to operate, why
> the heck shouldn't we?
>
> 73,
> -Larry/NE1S
>
Try reading
Bob Macklin wrote:
> All that is need for communications grade AM is 300Hz to 3KHz audio. Just
> use a 6db/octave rolloff at 3KHz.
>
> There is not much 3KHz or higher energy in the human voice.And we are not
> supposed to be playing music.
>
> B
All true, Bob.
But many of us enjoy listening to,
Bob,DGN, You can throttle the above 3 K off with an EQ and not let the
transmitter pass the above 3K audio... I run a GATES BC1G which goes out a
lot more then 3K but have it throttled off and can run 100% or more positive
peaks keeping the negative side down below 100% with a limiter...Robert WW9W
This is wonderful in theory.
So what are we supposed to do with WWII era equipment such as BC-610s?
The entire audio chain goes from 400 to 3500cps. Guess I'll just
continue along as I have been doing since I got both of them.
I do run a monitor scope, and I know it is clean. I do have to thr
Thank you Bob and Thank you Steve...There is NO BIG deal here folks..We do
not live by the so called Band Plan...Just operate AM with good operating
practices and enjoy HAM RADIO and don't think about band plans... When the
FCC starts getting involved then we worry but the US GOV has no time to
thi
Why cant you people understand that you can operate AM anywhere you can
operate SSB. A calling frequency is just that . A "CALLING FREQUENCY".
The East Coast AM group thinks they own 3880. The West Coast group feels the
same way about 3870.
What's nice to know is where to look for AM operation.
All that is need for communications grade AM is 300Hz to 3KHz audio. Just
use a 6db/octave rolloff at 3KHz.
There is not much 3KHz or higher energy in the human voice.And we are not
supposed to be playing music.
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
- Original Messag
This NOT a matter of ANYONE claiming to be better than anyone else!
The comment that: "I see and hear too much that sounds like CB", is the
bald truth.
This year makes 30 yrs of being licensed under the old system that
required code. NO I am NOT saying that it made folks act any better,
NOR t
Todd, you are correct.
The ARRL has been obsessed with spectrum conservation for decades. It
might have made some sense at one time. But the compulsion to make
every emission as close to knife blade narrow as possible is out of
touch with reality now.Not to mention that when I finish using 6
I certainly did not mean to imply that I am better than anyone else, however
the rude and disruptive actions on the bands are far far worse that I ever
saw back when 1950s, 1960s. if we are doing quotes, here is one I like "
if you throw a rock into a pack of dogs, the one that yelps the loud
Bernie,
I think that it is more of a reflection of our society as a whole now days.
I want it now, I want it my way, I don't want to have to put forth any
effort to get it and if I have to step on some one else to get it that's ok
as I'm just looking out for myself.
Then you put that together wit
"Quote: I see and hear too much that sounds like cb.It will be hard to
convence me that this is not the result of the downgraded license requirements."
I hate that "I am better than someone else" attitude no matter where I find it.
I am "convenced" that mean and people suck.
n0jef
This is nothing but BS. it is all power and money. look at the epa from
thier start many years ago to now. once you meet the modest goals, the only
way to exist and expand is to expand the goal constantly.any
organization that publishes any document, however distorted and crazy , will
be po
Don't forget your Division Directors and Vice Directors. Send them
copies of anything you send to anyone directly connected to Newington.
Jim/W5JO
- Original Message -
>
> Let's stand up for our mode, my fellow AMers. Don't just send your
> comments to the published email addy, but
" Band plan sand plan - thank God they are plans not rules. Talk where you
want according to the actual rules."
The problem is that once the bandplan is adopted, essentially a treaty, the FCC
would eventually need to modify the rules to align with it.
I'm not sure if the League is so much
" Band plan sand plan - thank God they are plans not rules. Talk where you
want according to the actual rules."
The problem is that once the bandplan is adopted, essentially a treaty, the FCC
would eventually need to modify the rules to align with it.
I'm not sure if the League is so much
30 matches
Mail list logo