Who Let the Dogs Out Hi Hi.
Who Let the Dogs Out...Out...Out...Out.
Who Let the Dogs Out...Out...Out...Out.
Etc
Hi Hi.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
On Behalf Of Andrew O'Brien
Sent: Tuesday, March 27, 2007 10:06 PM
To:
I use the numbers that the ARRL and W5YI have used.
I have NO idea what the true numbers are.
However, I do know that if 5,000 or 10,000 thoughful responses were sent
to the ARRL Division Directors with a Cc to the ARRL President, then I
believe that you would see a change.
If 10% of a
Wasn't me. Ididn't hear anything on 4147 before I left for work this morning.
Our groups test signal stopped at 07:00 CST and was centered around 7.2 MHz and
covered 100 kHz and running 10 watts or so peak power for the signal. Four
transmitters all at one location and trasnmitting a single
That's for sure. I think that too many in emergency and disaster
communications take the Internet and phone service for granted. But we
have places with 50 miles of my home QTH that have neither cell phone,
POTS or Internet connectivity and even law enforcement has a hard time
getting
http://www.arrl.org/news/features/2007/03/19/1/?nc=1
Just for those who haven't tried Fldigi.
Walt/K5YFW
HumDXing is the hobby of tuning in and identifying distant radio
signals, or making two way radio contact with distant stations in
amateur radio. The term DX gets its name the CW abbreviation DX, for
distance or distant.
Distant
1 a : separated in space : AWAY a mile distant b : situated
http://home.satx.rr.com/wdubose/hsmm/hsmm-webpage.html is not a good
reference. I have not maintained that page since 2005. Much has
happened since then and I need to take it down since it is very out of
date.
Actually I didn't know the account still existed. I wonder who is
paying for it?
What if an individual wants high speed AND good low signal leveel
throughput?
I think the first thing is that individuals need to decide what USER
throughput they want in CPS or WPM or PPM and then at what the lowerest
SNR they expect the mode to provide 95% copy (or some percent of
perfect).
As
How do you or can you save a received PSK file with FLdigi?
I need to demo Fldigi and FLPuppy Live CD tonight.
Thanks 73,
Walt/K5YFW
Define needless? Whys is it needless? Were the messages being relayed across
the country by amateur radio stations in 1920 needless? There was ATT and
several other smaller telegraph systems that did the same thing.
The idea today is to have a high level of confidence in our ability to send
- Original Message -
From: DuBose Walt Civ AETC CONS/LGCA mailto:[EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Thursday, March 08, 2007 2:33 PM
Subject: [digitalradio] Disputed territory:
Disputed territory:
3580 - 3600 kHz in North America
Where the FCC says I can
I don't think that sending messages and relaying messages by amateur radio was
ever ment to restrict the content to amateur radio only subject matter. In
fact, if you look at the ARL numbers, you will find that most of them are NOT
related to amateur radio subject matter.
73,
Walt/K5YFW
Who would coordinate the use?
What if the ARRL coordinated with other countries amateur radio organizations
in Region II and had a region bandplan that said where each mode should operate?
Would the next thing be channelization such as we have on 60M?
Perhaps we should give coordination for
Disputed territory:
3580 - 3600 kHz in North America
Where the FCC says I can operate digital modes in North America:
1.800 - 2.000 kHz
3.500 - 3.600 kHz
7.000 - 7.100 kHz
10.100 - 10.150 kHz
14.000 - 14.150 kHz
ARRL Band Plan and FCC Authorizations:
160 Meters
ARRL1.800 - 1.810
I'm having a bit of a time loading FlPuppy on a computer that has had
all the data wiped. I am following all the instructions of the Puppy
Universal loader but when I finish and try to reboot it won't boot to
Puppy.
Anyone have any ideas?
Walt/K5YFW
Another reason for not falling for Vista...
http://www.desktoplinux.com/articles/AT9727687530.html
So why not give Linux a try? Start with the Puppy Linux Live CD with fldigi
and other W1HKJ programs pre-installed (http://www.w1hkj.com/Fldigi.html
download flpuppy-1.30.iso). They load the
Yes, that's what I am going to do...and use VOX to start with until I build an
optoisolator PTT circuit.
Here is a strange unexpected occurrance...I connected the audio output from the
IC-746PRO's ACC1 plug to the soundcard line input and when not running Fldigi,
I can hear the received audio
http://www.arrl.org/news/stories/2007/02/22/102/?nc=1
Well, here is the first step...
ARRL Seeks Comments on New HF Digital Protocol (Feb 22, 2007) -- The
ARRL is seeking comments from amateurs concerning development of an
open-source (non-proprietary) data communications protocol suitable for
was not too bad considering the time
of year here in the northern hemisphere. It will be most interesting to
see what happens this summer with static crashes. It just seemed like
DEX was able to handle static crashes better than other non-ARQ modes.
73,
Rick, KV9U
DuBose Walt Civ AETC CONS/LGCA
.
Based upon the multitone success of Pactor 3, it seems that having a
moderate number of tones (18 perhaps?) might be better than having large
numbers such as found with MT-63 (64 tones).
What would happen with a DEX44 or DEX88, with or without FEC?
73,
Rick, KV9U
DuBose Walt Civ AETC CONS/LGCA
Coding Coding
ModeBaud Speed Correction Convolution Interleaving SNR
(in dB) Bandwidth
DominoEx11 10.766 77 WPM No No Not Stated
Not Stated 194 Hz
DominoEx22 21.533 154 WPM No
I tried out my IC-T7H in the NOSC of a large ISP which was in the basement
vault of an old bank.
There was a really good repeater within4-6 blocks of the NOSC and I couln't
hear it or anything else on 2 or 79 cm.
When I stepped out to the vault and the vault door was closed, everything came
) or the java GUI done by John Melton or usSDR gui done by Jonathan
Naylor. Frank and I are not interested in doing this GUI work. We are
interested in support anyone who wants to do the GUI work.
Bob
N4HY
(coauthor DttSP with AB2KT)
DuBose Walt Civ AETC CONS/LGCA wrote:
Peter,
IMHO, the SDR-1000
.
Bob
N4HY
(coauthor DttSP with AB2KT)
DuBose Walt Civ AETC CONS/LGCA wrote:
Peter,
IMHO, the SDR-1000 has some of the best specs. out and is the
most configurable transceiver on the market. I have seen the
insides of the transceiver several times and the construction looks good
@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of jhaynesatalumni
Sent: Wednesday, February 14, 2007 10:50 AM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] Re: Domnio, PAX etc
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
Rick,
I hope you
As far as I know all the ICOM D-Star user radios can run analog or D-Star.
The D-Star digital repeaters are digital only.
D-Star is an open source protocol developed by the Japnaese Amareur Radio
League.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL
are the more
prevalent variables on a given situation.
I am very interested on this experiment.
Jose, CO2JA
jhaynesatalumni wrote:
--- In digitalradio@yahoogroups.com
mailto:digitalradio%40yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
Rick,
I hope you
have only seen reports on gaussian noise using Moe's simulator.
And agreed. Working in concert is a MUST. Flaming each other is the
least we need.
Jose, CO2JA
DuBose Walt Civ AETC CONS/LGCA wrote:
STOMP STOMP STOPM...for the 10th time...use Moe Wheatley's PathSim.
It may not be the best
Peter,
IMHO, the SDR-1000 has some of the best specs. out and is the most configurable
transceiver on the market. I have seen the insides of the transceiver several
times and the construction looks good.
But note that it is only controllable using MS NT (maybe), W2K, XP but I
understand that
Thanks for the comments.
The Jupiter now cost $1495 without an antenna tuner.
The SDR-1000 now cost $1499 without an antenna tuner.
The IC-746PRO now cost $1499 with an antenna tuner and they will through in a
power supply.
I think that the 746 will do everything that the Jupiter will and
http://www.fcw.com/article97508-01-30-07-WebprintLayout
I wonder how many amateur radio applications will be broken if someone
moves to Vista?
Walt/K5YFW
Please see the ARRL Technical Task Force Report presented at the
January 19-20, 2007 ARRL Board of Directors 2007 Annual Meeting.
http://www.arrl.org/announce/reports-2007/january/23-TechnologyTaskForce
.pdf
The last paragraph of the report is very interesting.
. Data Communications
Rein and All,
The only description I have of FNpsk is found at
http://www.w1fn.org/fnpsk/index.html
I downloaded the applications and unzipped it and found an FNpsk.CAB file which
I unzipped and it had all the help files in it starting from the
mainscreen.html.
Thus far this is all I know
@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
One thing that I have noticed is that among U.S. and many other
hams around the world there is a misconception that we (the world)
cannot lose the Internet.
Well, I have seen times when the Internet within the U.S. (48
states) and I
Back in 1988, I really hacked a BBS program written in BASIC by DICK ROUX,
N1AED, to make it work with an AEA PK-87(?). The computer was a Radio Shack
Model 100 laptop.
I have lost my electronic version but remember forwarding it to a number of
hams via E-Mail.
If by chance you have a copy
it
at home).
Thanks again, 73
Bill N9DSJ
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
Bill,
As Rick said...this is kind of the way it is here in Texas durring
a hurricane. We loose telephone and DSL then cable and broadband and
then if you
PSKMail is reaching many of the LinLink goals.
The LinLink project is intended to provide a strategy for fielding long range
data communications systems in times of emergency.
It is an effort to provide better services than the use of proprietary, closed
system such as WinLink2000 with
?
And the internet is a series of connected tubes...
73,
Dave, AA6YQ
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of DuBose
Walt Civ AETC CONS/LGCA
Sent: Thursday, January 18, 2007 12:00 PM
To: digitalradio@yahoogroups.com
Subject: RE
I know this is a late reply...but Linux is a OS based on a Kernel.
Linux is an umbrella term that refers to a computer operating system that uses
the Linux kernel. When a Linux operating system also uses GNU software, it may
be referred to as GNU/Linux. It is the additional GUIs, desktops
Bill,
As Rick said...this is kind of the way it is here in Texas durring a hurricane.
We loose telephone and DSL then cable and broadband and then if you happen to
be on fiber, one of the relays gets under water or the relay node blown away
and not fiber. Noise is so high that 2M FM/packet
Well certainly PSK31 has a lot going for it. Of course the small bandpass
which can give a better SNR if you can narrow down you receive bandpass.
Then the VariCode also improves throughput. I think that overall...15-25 watts
of PSK31 is like 100-300 watts of CW.
Your antenna makes a lot of
Real-time Linux powers US Air Force F-16 simulators.
http://www.networkworld.com/newsletters/linux/2007/0115linux1.html
Walt/K5YFW
times since then. Sometimes trying
to find the older libraries is a real challenge. I would love it if
everyone would store the libraries and programs necessary to install a
program right with the program.
Jim
WA0LYK
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL
Again we must be careful in comparing keyboard to keyboard modes with file
transmission modes or E-Mail modes (which is a file transferring mode). We are
back to apples and oranges.
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of KV9U
Sent:
2000 system has never been used for nearly a 2:1
compression for improved throughput. This could be applied to any
system, including keyboarding.
73,
Rick, KV9U
DuBose Walt Civ AETC CONS/LGCA wrote:
Well I can't hear a CW signal at a -5 dB SNR. Can you? But I don't think
minus teens
I think that 10 seconds or longer is a poor use of on-the-air time unless its a
very robust FEC mode. Also, as many who have observed, the ionosphere can
change much in 10-20 seconds.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of
/book.html
73,
Dave, AA6YQ
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
IMHO, hams have not said we want this distro to support ham radio
so we adopt it.
SuSe, Mandrake, Debian and a couple of others cater to amateur
radio
It was an MS vs Apple battle not MS vs Unix. Or perhaps MS DOS vs IBM PCDOS.
MS developed Windows and IBM didn't have an equal. So MS kind of got it bby
default.
IMHO, had the U.S. gobernment went with Apple rather than MS, then IBM might
have entered the windows (GUI) market and things
See my previous comment on drivers. If MS would allow hardware manfacturers to
freely write drivers for their equipment, then Linux programmers wouldn't have
to write driver code from scratch and you wouldn't have to compile their
libraries.
Walt/K5YFW
-Original Message-
From:
No or not much collaboration in the ham software world Simon.
If hams who write software would collaborate more, I think you would see more
and better applications for MS and Linux.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of
For some reason I can't get the latest information on PSKMail...actually
I think the pskmail.org URL and some others are being blocked. The last
I info I have is from Rein is dated Aug 2005.
Am I correct in that PSKMail is now using PSK125 and FLDigi?
I would appreciate direct E-Mail of specs
I went from IBM's PCDOS to Linux in Aug of 1991 and never run and MS at home.
My XYL does have a XP Laptop but I don't use it.
I've only run two Linux distros for my main home computer...RedHat and
Mandrake. I have SuSe loaded on a second computer but may try Puppy Linux or
Debian on it
Say...I have build a new P-4 3 GHz dual core computer with one of the new 1
TeraByte hard drives. But I don't have an OS. Can someone give me a copy of
XP professional? I've spent money on the hardware and have none for the OS.
Txn 73
Walt/K5YFW
-Original Message-
From:
The Commanding General for AFLC at Wright-Patterson AFB had the call whether
the Air Force would go with MS or Apple. He chose MS.
IMHO had he gone with MS, then all of the U.S. military and U.S. government
would have gone with Apple. To keep in step with the federal government, state
and
Ok...super. Thanks and disregard my last E-Mail...but port 80 IS being blocked
from some more IPs.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Rein Couperus
Sent: Friday, January 12, 2007 2:10 PM
To: digitalradio@yahoogroups.com
SVCHOST (svchost.exe) IS a dog and CAN eat up performance on such a short
term/time basis that it will never show up in your task manager and perhaps not
even as a spike on you CPU performance.
The other possibility is that something is running in the background (a ham
radio program that you
@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Demetre SV1UY
Sent: Thursday, January 11, 2007 10:44 AM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] Re: Pactor versus Olivia
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
Again, may I inject
If you looked at the PDF document of KN6KB's measurements, that is what is
showes.
The only difference between Pactor I, II and III is the throughput
(NetByte/minute) at various SNRs.
I can only assume that the BER or percent of errors ( zero errors?) was also
the same.
PIII+10
bandwidth users means more throughput for more
users than one large bandwidth user at a time.
73,
Rick, KV9U
DuBose Walt Civ AETC CONS/LGCA wrote:
If you looked at the PDF document of KN6KB's measurements, that is what is
showes.
The only difference between Pactor I, II and III
IMHO, hams have not said we want this distro to support ham radio so we adopt
it.
SuSe, Mandrake, Debian and a couple of others cater to amateur radio. My
personal leaning is toward Debian and it WAS the first Linux distro. to try and
devote itself to being ham radio friendly.
The real key
A somewhat off the current chain of thought...but what burns up the finals in
your transceiver with a high crest factor mode? Is it the peak power or
average power?
In SSB I can have a peak power of 100 watts output over an epoch but the
average power over an epoch is maybe 10-15 watts and
Please allow my 2 cents worth.
KN6KB in his presentation of SCAMP to the DCC a couple of years had a slide
that showed where he measured P III with a channel simulator from KC7WW. I
showed that around -5 dB SNR there was still something in the area of 200 WPM
throughput.
I believe that you
GREAT Log Andy...tnx.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Andrew O'Brien
Sent: Monday, January 08, 2007 7:05 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] some digital spots
FYI
DX de K3UK:
Here is a little HTML code that will take you to the ARRL Callsign Lookup. I
suppose I could write it to go directly to the FCC callsign lookup. Also,
someone can write this is VBasic.
Walt/K5YFW
html
headtitleCallsign Search/title/head
body bgcolor=white
p
TABLE BORDER=1 CELLSPACING=0
When I was working HF packet (at 110 baud) back in the early 1980's, I found
that I did generally make my PACLEN to 40 and MAXFRAME to 1 and my ID was
k5yfw-3775 or what ever I was using. If conditions were really good, I set the
PACLEN to 76 (72-76 characters is what is recommended for
Danny,
I think you have pinned it down...
I think most of us who run a normal keyboard-to-keyboard QSO need less than 40
(maybe 60) WPM but want a really robust mode...something I can run QRP on and
still get 100% error free copy...Ok, 100 watts. Hi Hi...and a dipole on 80/40.
But then I
for not curing the second
scenario, especially given that the second scenario is far more
common than the first scenario.
73,
Dave, AA6YQ
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC
CONS/LGCA
walt.dubose@ wrote:
A B hear each other but dont' hear C
The hidden transmitter on any band and especially HF is always going to be a
problem. It is not only a problem for us, but also in the commercial and
military communications world.
As hard as we try, as operators and using smart software, we will not overcome
the problem.
We then are left
ET2US WA5UKR ET3USA
SV0WPP VS6DD N7DC/YV5 G5CTB all
DX 2-6 years each
.
QSL LOTW-buro- direct
As courtesty I upload to eQSL but if you
use that - also pls upload to LOTW
or hard card.
moderator [EMAIL PROTECTED]
- Original Message -
From: DuBose Walt Civ AETC CONS/LGCA [EMAIL
Rick,
Just for grins, back when the Ottawa 19.2 Kbps PI-2 card was popular, a couple
of guys here in San Antonio modified a couple of Motorola solid state
commercial LMR sets to send and receive the wider 19.2 KBps signal. They had a
great deal of success. I believe that they loaned one of
I can buy a 2W MURS radio (talkie) today for less than $150 and some for as low
as $99.
Also, you can run a MURS radio on an external antenna up to 60 ft with no
restrictions on antenna gain. If the antenna is on the top of a building, the
antenna can be no more than 20 ft above the
the car to the
house with a 9db gain vertical at 30 foot on the house
and a 5db gain colinear on the car
--- DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:
I can buy a 2W MURS radio (talkie) today for less
than $150 and some for as low as $99.
Also, you can run a MURS radio
I think that GMRS individual licenses are $75 each. But maybe they have goine
up.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Paul L Schmidt, K9PS
Sent: Friday, December 08, 2006 11:02 AM
To: digitalradio@yahoogroups.com
Subject:
Are you referring to ham radio applications or other more normal
applications? I haven't had any problems with normal/regular Linux programs
and even many ham radio programs...but I'll admit that some of the ham radio
progrmas take a lot of work to get them loaded correctly and running
, and bandwidths based upon
what non-ham organizations need to support their business plans
(disaster services) we are on a very slippery slope that can lead to
unintended consequences to the amateur service.
Jim
WA0LYK
--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED
Just substitute the fixed 300-1200 ohm resistor with a 300 ohm fixed resistor
an 0-1K variable resistor.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Dave
Doc Corio
Sent: Wednesday, November 29, 2006 2:10 PM
To:
And in my case, everyting concerning MS operating systems and applications are
not valid for my operation as I am 100% Unix/Linux ham shack and home office.
If I were the publisher of a major (or any amateur radio magazine) I would
insist that any article with software that the writer
[EMAIL PROTECTED]
- Original Message -
From: DuBose Walt Civ AETC CONS/LGCA [EMAIL PROTECTED]
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Yahoo! Groups Links
Most emergency communications is in reality disaster communications and is
NOT in support of governments but rather non-governmental agencies, i.e. the
Red Cross, Salvation Army, etc. These organizations do need very high-speed
throughput modes that are robust to meet their operational needs
Put an 8 ohm resistor in place of the speaker. Then across the 8 ohm speaker
place a 600 ohm resistor in searies with a small 2 speaker. You can vary the
series resistor from about 300-1200 ohms to adjust the volumn. The series
resistor won't bother the 8 ohm speaker output too much.
Way back when, Debian tried to solve this by being the Ham Friendly distro and
most ham programmers used Debian.
Today programmers like one distro or another and don't generally tell you what
distro they used. If they do, then you might want to use that distro. The
problem is, as you have
Actually one of the reasons I use Linux is that there are applications that I
like but want to add or change certain little nuances and having the source
code readily available and being able to change it and re-compile the
applications has bee a great deal of fun.
Editing the source code is
Jose,
This is what I have been saying for a couple of years now.
Research done by independent research labatories and universities confirm
that the best bet to increase throughput and robustness on HF channel modems is
to use parallel tone modems.
I believe that the Russian modem you speak of
As Bob, N4HY, and others have explained...the publicly documented description
of the mode may not be sufficient for engineers/mathematicians or other
individuals to be able to replicate the capability of receiving a Pactor II
signal.
Additionally, the use of or method of their use of their
Perhaps now is the time to ask the question...what is the difference between
analog and digital? Both are data.
In the truest sense of the word, language normally vocalized is data in an
analog form. If we digitize it, it becomes digital data.
If we take a picture of a printed page and
What is there in the digital realm except data, image and digital voice?
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Bill Aycock
Sent: Thursday, November 16, 2006 11:57 AM
To: digitalradio@yahoogroups.com
Subject: Re:
Not good logic.
BPL is not good because many deployed systems do not meet the FCC's
specifications, the FCC knows this and does not enforce its own administrative
law.
Pactor III will violate Part 97 when the new rules go into affect and in fact
may violate Part 97 now due to other problems
I think that Fredericks(sp) made hardware that did this. They also had
hardware to send and receive CW at 60-90 WPM.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Danny Douglas
Sent: Monday, November 06, 2006 8:08 AM
To:
Everything I have ever read leads me to believe than any baud rate below 40-50
baud is Ok for NVIS operation on HF. The lower the baud rate the better to a
point. The more/better (more robust) FEC you have the better change for error
free (near error free) copy. There is also a consideration
If this is so, then Pactor III, MT631K and MT63-2K and I suppose several other
wide PSK modes will not be permitted.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of John B.
Stephensen
Sent: Tuesday, October 31, 2006 5:54 AM
To:
On flat terrain, on 10M FM with 50 watts and a 1/4 wave groundplane at 30ft on
both ends for the link, you should be able to work each other at distances of
20-30 miles with no problem. I've done this quite regularlly on 29.6MHz-35Mhz
(commercial above 10M).
On 6M (52.525MHz), with the same
The 60M channels are between regular government fast boat channels. I doubt
that they would used the chennels we are allowed on; but, if they are, they
would be putting out between 100 and 500 watts PEP USB and perhaps encrypted
and fed into good marine vertical antennas.
Walt/K5YFW
But that's how DX works...
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Danny Douglas
Sent: Tuesday, October 24, 2006 3:20 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Efficient spectrum usage
Yes, and at the
A clear communications channel, with the message/words clearly articulated
and received and understood by an knowledgeable undistracted individual with
flawless cognitive abilities is certainly the best way to communicate.
However, this is the exception rather than the rule.
Thus written and
Very good test Tony.
My impression with limited commercial DV is that when there are several hops,
that DV degrades and doesn't perform as well as SSB...and by that I mean that
DV is there or not there...not actual signal strength.
The polar paths are definately going to be harder than a lower
Ah ha...well Bonnie I see that I am not the only one who is looking at the
overall picture of band usage.
Here is an example of what I saw in the military...
SSB voice took 10 minutes to pass a 100 word message between really seasoned
radio operators on an HF channel typical of most Q4-5
Wonderful...how about a test of the mode on PathSim?
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Andrew
O'Brien
Sent: Sunday, October 22, 2006 3:27 PM
To: digitalradio@yahoogroups.com
Cc: carcomm@yahoogroups.com
Subject:
Rick,
Did you figure this as a text/data file being sent or a keyboard-to-keyboard
mode.
I think that there has to be some operator thought concerning wheather or not
they are going to be operating in a chat QSO or data trasnfer mode. But the
condition certainly has to be considered if there
Walt/K5YFW
[EMAIL PROTECTED]
Subject:[CONTACT]...
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion)
I don't see much use for a very high throughput, very robust data mode that
requires 6-10 KHz of bandwidth as being used by me except when I am working
disaster relief and for perhaps traiining nets. If I have that capability,
good amateur radio practices would cause me to use only the mode
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