While I see a possibility in copying FSK with some coding, or ASK, I
don't see how the ear could discern PSK. ASK may be identified as
presence or absence of a tone, FSK as the presence of one of two tones,
but PSK is the SAME tone, with just key clicks during phase jumps, but
with no way for
jhaynesatalumni wrote:
> So it seems that just by suggesting a particular frequency for
> calling someone has stirred up a bunch of digital modes
> activity.
>
> One thing I'll suggest is that maybe we don't need to QSY after
> establishing a contact. Seems like you can listen on 14078.4
> and if
If there is a "central" calling freq, and it is busy, we can simply "look
around". In fact, I have my waterfall set to see almost 5 KC of band, and
the bandpass in the rig isnt even that wide, but I can definitely see at
least 3kc quite well. If another station is within that area, I will see
him
Hi everybody!
I don't think they (us) call it "calling frequency" for nothing, but perhaps
you can try this:
next time you need to call the police, fire department, or the likes instead
of 911 dial 912, after all it's just a number away.
Regards and Seasons Greetings to all
On 12/23/06, Rog
--- In digitalradio@yahoogroups.com, KV9U <[EMAIL PROTECTED]> wrote:
>
> I strongly agree with this. I have never understood the concept of
> moving off a calling frequency once contact is made unless the
reason is
> due to annoying those listening to a given dedicated frequency as
we do
> on
You cannot depend 100 percent on what they may say anyway. I came from Hong
Kong, back to Washington state for home leave, then traveled by myself on to
Washington DC for further training, etc. Went in to the state department
travel office to make arrangements to travel on down to Caracas. I ask
jhaynesatalumni wrote:
>
> So it seems that just by suggesting a particular frequency for
> calling someone has stirred up a bunch of digital modes activity.
>
> One thing I'll suggest is that maybe we don't need to QSY after
> establishing a contact. Seems like you can listen on 14078.4 and if
I strongly agree with this. I have never understood the concept of
moving off a calling frequency once contact is made unless the reason is
due to annoying those listening to a given dedicated frequency as we do
on 2 meter simplex. Even there, I question the wisdom of doing that in
less populat
John Champa wrote:
>
> Steinar,
>
> I think US hams are simply reading far too much into their
> regulations. They tend to do that because we are over exposed: We
> have too many under-employed lawyers in the US, and way too many
> wanna bes. In the Army we called these amateur lawyers, barrac
John,
Most of the bureaucrats do care a LOT about the rules from my many years
experience with other CFR rules. That is their job. Sometimes things are
not clear and the only way to know for sure is to ask and get their
interpretation.
But interpretations by other individuals, even highly educ
So it seems that just by suggesting a particular frequency for
calling someone has stirred up a bunch of digital modes
activity.
One thing I'll suggest is that maybe we don't need to QSY after
establishing a contact. Seems like you can listen on 14078.4
and if it isn't busy you can call on it, an
On Sat, 2006-12-23 at 14:02 -0500, kd4e wrote:
> > I have to disagree Gabriel, PSK is a form of
> > modulated coding, just as is FSK. CW in its simple
> > form is a carrier that is on or off and is a form
> > of digital signal that the brain can decode, such
> > as is voice. But PSK, FSK, usall
- Original Message -
From: "kd4e" <[EMAIL PROTECTED]>
>
> Are there discernible patterns in the tone sequences
> used
Yes, it's 1 and 0 type stuff but these could be converted to audio signals
by a programmer and decoded by someone with:
[1] nothing better to do with his / her life, and
> A brain does not make radio waves, a radio
> does! Gabriel, WP3BM
Oddly enough I believe that the brain actually
does generate modulated radio waves.
Serious weak signal stuff, though!
--
Thanks! & 73, doc, KD4E
... enjoying a sunny CHRISTmas in Florida :-)
~
Steinar,
I think US hams are simply reading far too much into their regulations.
They tend to do that because we are over exposed: We have too
many under-employed lawyers in the US, and way too many wanna bes.
In the Army we called these amateur lawyers, barracks lawyers (HI).
As a result they of
I would like to start using my Kenwood SM-220 for RTTY. What kind of
demodulator would I need to use in order to use the H.Input and
V.Input treminals on the front of the scope.
Thanks
> So, come on folks...lets see how many modes we can stir up on calling
> freq this weekend!
>
> Hey there is a call on the freq now... Roger W6VZV calling via
MFSK16.
> That makes a whole two modes today :>)
>
> Andy K3UK.
>
CU2JT there now calling CQ Feld Hell, oops...now a Throb startin
You can indeed learn to "copy" a bit of rtty. I used to be able to set and
hear someone call my government call sign in it. It is simply 5 level code,
and I have heard of one or two guys who could copy messages, but never saw
anyone do so. The REVS is quite easy to recognize. Just set rtty to i
Because of continuing popularity of the pskmail live CD (20 concurrent
downloads) after the QST article came out, I have decided to offer a
mirror machine in the US to facilitate download of the pskmail live CD.
Point your browser to:
http://www.wwns.com/tlf/pskmail_iso/
This address is in the US
> I have to disagree Gabriel, PSK is a form of
> modulated coding, just as is FSK. CW in its simple
> form is a carrier that is on or off and is a form
> of digital signal that the brain can decode, such
> as is voice. But PSK, FSK, usally infers a code
> the brain can't decode. PSK and FSK me
A very Happy Holiday season to all and to you Joe, nice seeing your call
Ron W4LDE
Joe Ivey wrote:
> To All:
> Happy Holiday Season to all
>
> Joe Ivey
> W4JSI
>
> Light travels faster than sound.
> This is why some people appear bright
> Until you hear them speak.
>
>
>
Hello to all,
We have done a short experimentation in APRS Packet 110 bauds, Fred (OH/DK4ZC)
repeating the frames ("digipeater").
It works well. The signal must be good but not so powerful as in Packet 300
bauds. So I could exchange APRS frames with Fred and I could receive my own
frames, rep
Well, I called on 14078.4 actually had success. After a couple of CQs
in Olivia 16/500, a 4-land station came back to me, Dave KI4LAA.
Being polite, and arranging to QSY, took 3-4 minutes rather than my
suggested 2 minutes but we did shift to 14075.5 .
So, come on folks...lets see how man
Hi my American HAM friends,
If I have understood this right , this FCC rules of yours make it
impossibility for you to use rfsm2400 as a "keyboard to Keyboard mode".
But you can use it for transmitting digital pictures on 14.240 MHz. It
seems a little bit strange to me , but anyway ; let's try
To All:
Happy Holiday Season to all
Joe Ivey
W4JSI
Light travels faster than sound.
This is why some people appear bright
Until you hear them speak.
Good Morning Andy,
I might have a certain amount of difficulty with this!
I operate QRP using a "Small Wonder Labs" PSK 20 and the pass band drops off so
steeply I don't think I can operate much above 14075.
John G8HWI
Andrew O'Brien <[EMAIL PROTECTED]> wrote:
Andy,
I am calling CQ on 14078.4 there now using Olivia, MFSK16 or FeldHell -
primarily with Olivia. Time now is 821z. I have enabled my waterfall ID in
fldigi.
73 de Brett VK2TMG
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