Hi Andy
What is the frequency of this noise.. I mean what frequency within 80
meters?
Larry ve3fxq
- Original Message -
From: "Andrew J. O'Brien" <[EMAIL PROTECTED]>
To:
Sent: Monday, September 11, 2006 8:45 PM
Subject: [digitalradio] What is this noise?
I have noticed an occasiona
On 9/12/06, Robert McGwier <[EMAIL PROTECTED]> wrote:
>
>
>
>
>
>
>
> I agree with this. The switchers typically have a free running
> "oscillator" in them so they drift and coupled with insufficient RFI
> prevention. This gets coupled into a receiver where you can be running
> as much as 100 dB of
> Patrick Lindecker wrote:
> Yes it is incomplete (but a good start).
> For example, it misses the very interesting
> JT44 and JT65 modes, all the LW modes (QRSS...)
> and a lot of Hellschreiber modes.
You have taken us closer to the goal of 100%. :-)
Perhaps someone can build on the start y
>If that is so it would be incomplete.
Yes it is incomplete (but a good start). For example, it misses the very
interesting JT44 and JT65 modes, all the LW modes (QRSS...) and a lot of
Hellschreiber modes.
73
Patrick
- Original Message -
From: kd4e
To: digitalradio@yahoogr
Murphy says so. Unimportant, or unwanted email will be very reliably
delivered, while important and very much wanted email will not be reliably
delivered
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
Sent: Friday, Augus
> Patrick Lindecker wrote:
> Yes it would be a very good thing to compare all digital
> modes with their respective qualities and weakness.
> It would give ideas for new specifications of mode.
>
> For a much more fine description of the modes, see the F1ULT Pascal WEB site:
> http://f1ult.free
Hello Walt and Jose,
Yes it would be a very good thing to compare all digital modes with their
respective qualities and weakness. It would give ideas for new specifications
of mode.
For a much more fine description of the modes, see the F1ULT Pascal WEB site:
http://f1ult.free.fr/DIGIMODES/MULT
--- DuBose Walt Civ AETC CONS/LGCA
<[EMAIL PROTECTED]> wrote:
> Jose,
>
> I re-though the question and if 20M is near the MUF,
> then there would likely be more multi-path signals
> on 40 and 80. But I suppose that you need to define
> what "near the MUF" is in terms for frequency or
> percent.
Doc, you said..."Not to discourage innovation but perhaps a very centralized
and unbiased Web page that compares and contrasts all of the modes would assist
Hams in making choices for the best of the myriad choices."
I think that Patrick has a good start with his mode page.
A problem I see is w
Sorry I am behind in comments older E-Mail...but I ahve been sick for a number
of days.
While I really like MT63, your comments Rick are valid. "...This is the kind
of real world information we need to hear. Considering the enormous amount of
bandwidth MT-63 takes up, it would have to work sev
Jose,
I re-though the question and if 20M is near the MUF, then there would likely be
more multi-path signals on 40 and 80. But I suppose that you need to define
what "near the MUF" is in terms for frequency or percent.
Also, the type of antenna radiation pattern you are using.
With the same
I agree with this. The switchers typically have a free running
"oscillator" in them so they drift and coupled with insufficient RFI
prevention. This gets coupled into a receiver where you can be running
as much as 100 dB of amplification in the entire receiver chain.
Bob
N4HY
expeditionrad
--- KV9U <[EMAIL PROTECTED]> wrote:
> Just so you know, that many of us don't drive
> Cadillacs or even Buicks.
Yep...I have seen many smaller imported cars on the US
streets on TV for many years.
A friend of mine still keeps his father's 1950
Buick...it is a voracious dragon with 8 cylinders
--- John Becker <[EMAIL PROTECTED]> wrote:
> Your are right Bill but I don't see any software
> that will keep up with that TNC in Amtor or Pactor
> ARQ mode as yet. And both modes are still very alive
> and well.
>
> John, W0JAB
Well, some 8 years ago I built a quite complex
homebrew modem w
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