As long as it is 500 Hz and 300 baud, it's fine.
-Joe, N8FQ
On Thu, 18 Feb 2010 19:04:29 -0500
Andy obrien k3uka...@gmail.com wrote:
Anyone know if this mode is legal in the USA. ?
Andy K3Uk
Hello to all!
I'm working on a slow-scan TV modem, which will eventually become the heart of
an SSTV repeater system. I'm up to the point where it will transmit and
(almost) receive images in the Martin 1 mode, but I need a good source of
information on the timings of various modes.
Have you ever tried FDMDV? Very narrow (~1200 Hz), all-software digital voice
protocol that sounds pretty good and, due to the low bandwidth, works well with
low power. Look for activity around 14.236 USB.
As far as VHF goes, D-STAR is getting pretty popular worldwide. Of course,
there
I use Fldigi for every mode it supports, and MultiPSK for everything else
(except the experimental modes that are only available in a separate program).
Most of the stations I work report that they are using either DM780, Fldigi or
MultiPSK. Haven't seen very many MixW users lately, perhaps I'm
I continue to be puzzled as to why anyone would spend more than $50 on a
soundcard and/or CAT interface, when both can be built for about $10 in parts.
For the sound interface:
* two 8:500 audio transformers
* one 2n3904 transistor (for hard keying, if you don't want to just use the
rig's VOX)
In Fldigi, right-click in the text window and select send image.
-Joe, N8FQ
On Fri, 08 May 2009 23:30:42 -0400
Tony d...@optonline.net wrote:
Andy,
I haven't found the way to send MFSK16 images with Fldigi or DM780. I'm sure
both programs are capable, it's just a matter of finding the
1. Make sure you are putting out a pure signal. Don't overdrive the rig (make
sure ALC is showing 0) and check the output of your soundcard on an
oscilloscope. Have your software generate a sine wave and make sure it looks
like one on the scope. Stairsteps, excessive FM or
Thor will be in Fldigi 3.0, which should be released soon. I don't know of any
other software that will be implementing it in the near future...
-Joe, N8FQ
On Thu, 19 Jun 2008 18:27:40 +0200
Steinar Aanesland [EMAIL PROTECTED] wrote:
Hi Andy ,
Any news about the Thor mode ?
73 de
The North Ottawa Amateur Radio Club (W8CSO) has been doing Field Day the last 2
years using solar power exclusively. Each station gets a 15 watt panel, and a
big kilowatt array is laid out in the middle of the park to charge depleted
batteries. We have been able to run 100 watts SSB/CW and 20
The database was overwhelmed with traffic and my account was suspended as a
result. I am trying to get them to reopen it but no answer so far...
-Joe, N8FQ
On Thu, 03 Apr 2008 22:24:32 +0200
Peter Frenning [OZ1PIF] [EMAIL PROTECTED] wrote:
What happened to the N8FQ pages, they have suddenly
That would probably QRM the HF APRS channel, which is around 10.1495 (10.1515
LSB, 2100-2300 Hz AF).
Unfortunately, it's almost impossible to do any kind of frequency coordination
on 30m. It's been my experience that there isn't one single Hz of bandwidth
that is not occupied by CW, gigawatt
http://www.electroblog.com/radio/yahooaprs/index.php
Something I've been working on on-and-off for awhile. There are at least a
dozen web apps out there that plot APRS data on Google maps, but in many areas
(including all of Ottawa and Allegan counties in Michigan) there is no
high-resolution
Just threw this together in about 10 minutes while getting ready for bed:
http://tinyurl.com/2mfqjv
Receiver is tuned to 10.132 USB.
I may make some improvements to this tomorrow.
-Joe, N8FQ
I was trying to call you but the band was dead between us. You should try it
around 5 PM EST.
-Joe, N8FQ
On Mon, 21 Jan 2008 07:29:12 -0500
Andrew O'Brien [EMAIL PROTECTED] wrote:
No one came back to me, I will try again Monday evening (North America)
Andy
The rule change that enabled MFSK16 SSTV did so by stating that image modes
with a bandwidth less than 500 Hz could be used anywhere data modes were
permitted. Search the archived posts around Nov/Dec 2006 for the actual text.
So yes, it is completely legal.
-Joe, N8FQ
On Sun, 20 Jan 2008
http://www.electroblog.com/sked/index.html
This is a complete rewrite from scratch, intended to address some of the
shortcomings and limitations of the old sked page, namely its intolerably long
run times and the fact that any text you're entering is lost if the page
refreshes. Test it and
I just filed a comment supporting it, confirmation #20071226739154. If we want
it to pass, we need to make a little more noise where it counts...
http://fjallfoss.fcc.gov/prod/ecfs/upload_v2.cgi
Specify RM-11392 in the first box.
Won't take but a minute, and WILL make a difference!
-Joe, N8FQ
There's been some discussion about this on the linuxham list. If you buy a
small USB hub, a USB-serial adapter and a small USB audio codec, you could pack
them into a box with a single USB-B jack on one side for the computer, and a
DIN, DB9 or whatever else you have laying around on the other
GMFSK supports MT63 and Olivia. Fldigi supports Olivia, and MT63 is on the todo
list.
-Joe, N8FQ
On Wed, 05 Dec 2007 12:27:14 -0600
[EMAIL PROTECTED] wrote:
BUT, unfortunately, we are screwed with not having our MT63, Olivia, etc
outside of the Windows OS . So, this little unit which would
I've been working on this for the last month and a half or so. The local emcomm
group has been using Aresdata for our database and messaging needs, and we've
come to the conclusion that it sucks and needs to be replaced.
This addresses some of aresdata's greatest shortcomings by keeping a local
Yep, I use it with HF, VHF and satellites, and run a 24/7 IGate with it.
-Joe, N8FQ
On Sun, 01 Jul 2007 02:14:34 -
Andrew O'Brien [EMAIL PROTECTED] wrote:
Anyone hear running Xastir ?
Andy K3UK
Well, Field Day is fast approaching, and I'm sure many of us are going to be
running, at the very least, some keyboard digital modes during the event.
Perhaps now would be a good time to plan the use of some demonstration modes,
each worth 302 points for a single logged QSO (one-shot 300 point
10 meters has been open almost every day for the last month, with MUFs often
reaching 6 meters (and sometimes as high as FMBC) somewhere in north america.
Given that the F2 MUF has been getting up to 15 meters pretty consistently, and
Es MUFs are hitting 100+ MHz, it stands to reason that, by
AO-7 and VO-52 can be used for digital modes, and they are quite easy to work.
AO-7: 432.125-432.175 uplink, 145.975-145.925 downlink
VO-52: 435.220-435.280 uplink, 145.930-145.870 downlink
I am able to work both of them with great ease with my horizontal yagis on an
azimuth-only rotor, and an
50.290. I've been calling on and off all week and have yet to make a QSO.
-Joe, N8FQ
On Fri, 11 May 2007 14:04:34 -0500
Chris [EMAIL PROTECTED] wrote:
Guys Gals,
What would be the 6m psk31 frequency in the US?
Thanks---
Bob C. (WU9Q)
I have added a bit of code that calculates the distance and bearing between you
and another user, based on your grid squares. As before, hovering over a
callsign yields this info.
Worth noting is that the distance will be displayed in miles if you have a US
or British call, and kilometers for
I know enough PHP to be dangerous, so if no one else wants the job, I could
hack together a similar page some evening if needed.
-Joe, N8FQ
On Wed, 25 Apr 2007 07:39:05 -0400
Andrew O'Brien [EMAIL PROTECTED] wrote:
If anyone has the requisite programming skills to create something
akin to
on the line), but it should be usable as it is.
-Joe, N8FQ
On Wed, 25 Apr 2007 09:47:55 -0400
Andrew O'Brien [EMAIL PROTECTED] wrote:
Thanks Joe , feel free to go ahead.
On 4/25/07, Joe Veldhuis [EMAIL PROTECTED] wrote:
I know enough PHP to be dangerous, so if no one else wants the job, I
Probably better to put it on your site (once it's finished of course). The ad
says it supports PHP, so that's most of what it requires right there.
Make a text file with a .php extension, containing the following line:
?php phpinfo(); ?
Upload it to you host and then open it in your browser.
This is caused by a problem with your cookie from the site. It would be helpful
to see the contents of the cookie from anyone who is having this problem.
-Joe, N8FQ
On Thu, 26 Apr 2007 01:30:34 -
cesco12342000 [EMAIL PROTECTED] wrote:
What do you mean?
Warning: stristr()
Harmonic from a jammer on 6160.
-Joe, N8FQ
On Mon, 23 Apr 2007 01:11:52 -
n4bwr [EMAIL PROTECTED] wrote:
I heard this on 18460. I got a recording of it, which you can hear
at http://blakenet.myftp.org/18460.wav. It sounds like water running,
and it looks really odd on a waterfall.
Sounds like JT65 to me...
-Joe, N8FQ
On Wed, 28 Mar 2007 00:20:25 -
Andrew O'Brien [EMAIL PROTECTED] wrote:
Anyone care to identify this signal
http://www.obriensweb.com/signal.mp3
Sounds throb-like but not exactly. Heard tonight on 14076 USB.
Andy K3Uk
Pactor 1 ARQ.
-Joe, N8FQ
On Sat, 24 Mar 2007 22:12:33 -
David Kruh [EMAIL PROTECTED] wrote:
http://www.bambinomusical.com/screenshot1.jpg
This signal was on 7068 Saturday afternoon ET. It is a pulsing signal
that I cannot identify. Thanks for your help, group.
David
WB2HTO
An Icom 735 is being used at the Holland ARC club station, and it is definitely
good enough for PSK31 and the other modes. It has CI-V as well, so apps with
rig control features will work with it.
One note: if you use the ACC-1 jack for your soundcard interface, disconnect
the mic when working
320x256 takes about 4 minutes on MFSK16. 160x128 is more reasonable.
-Joe, N8FQ
Bill McLaughlin wrote:
I believe 320x256 is the standard ... anything over 400x300 will
not make use of the slant and shift corrections. Again I am not sure
but think it can go as large as 1600x1200 but not
I've been thinking about this for quite awhile now, so I'm wondering
what everyone else would think about a mini-contest this weekend using
narrow image modes, like MFSK16 pix or MultiPSK's Run mode. Seems like
a good way to take our minds off the privileges we've lost, and
celebrate one that
In my opinion, this is absolutely WRONG. I have said this here before,
it all comes down to what is considered data.
The new restrictions only cover content type D, which is Data,
telemetry or telecommand. It does *NOT* include type B, which is
telegraphy for automatic reception. It is already
Wide SSTV isn't affected by this, it can still be run in the phone bands
as it is now. The 500 Hz limitation keeps it out of the digital bands.
Anyway, despite the majority interpretation, I still don't think that
the new rules will in fact eliminate the ability to run 500 Hz digital
text modes.
Well, I gave up trying to implement Contestia/RTTYM in Fldigi. Dave
W1HKJ says he plans to rewrite the Olivia modem from scratch at some
point, during which it should be easier to implement them than to try
and hack Pawel Jalocha's mind-bogglingly complex reference code.
Anyway, Dave recently
KV9U wrote:
Nevertheless, our Part 97 rules do not now authorize amateur stations
to transmit both image and data emission types on any HF frequency
segments,
I am probably misunderstanding something, but I had thought that we
could transmit both image and data and voice throughout the
At this moment I am on 7296 LSB if you want to try it.
-Joe, KD8ATU
Tony wrote:
Andy,
Are you still on 7238 (LSB)? I'm QRV as of 02:40z. Anyone for DV???
Tony KT2Q
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector :
Patrick only gave an outline of the differences between Olivia and the
derivative modes. What I am looking for is some pointers on the actual
task of modifying the templates to implement those differences.
I tried implementing RTTYM by changing the BitsPerCharacter and
scrambling code/shift
Hello list. I have been trying to implement support for the Contestia
and RTTYM modes in a fairly new digimode app, fldigi (www.w1hkj.com). It
currently has an Olivia modem which is pretty much taken verbatim from
Pawel Jalocha's reference code. So far, I have had very little luck
getting it to
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