I wonder if it covers the 30-meter band?
73 de Bob - KØRC in MN
- Original Message -
From: John Becker, WØJAB
To: digitalradio@yahoogroups.com
Sent: Friday, April 11, 2008 12:57 PM
Subject: [digitalradio] Amp for sale on Ebay
Item # 170209454193
97b7cdc.JPG
and describes a
great improvement for AMTOR...but also becomes almost useless for 300
baud packet.
AM7910 modems have 200 Hz shift.
Jose, CO2JA
---
Brad wrote:
--- In digitalradio@yahoogroups.com, Robert Chudek - K0RC [EMAIL
PROTECTED]
wrote:
For amateur radio stations
For amateur radio stations, 45.45 bauds and 170 Hz shift.
73 de Bob - KØRC in MN
- Original Message -
From: Walt DuBose
To: digitalradio
Sent: Monday, February 11, 2008 3:56 PM
Subject: [digitalradio] RTTY Standard
What are the current RTTY standards for baud and shift?
.
-- In digitalradio@yahoogroups.com, Robert Chudek - K0RC [EMAIL PROTECTED]
wrote:
Andy,
When using FSK and the MMTTY/N1MM software, the NET button has no
effect. That button is used only when your setup is configured for
AFSK mode.
Regarding the AFC button, you may or may not want
I started my RTTY career using 2125 and 2975 tones... until those young brats
started pushing the envelope (or should I say, squeezing the envelope) with
those 170 Hz tones... things were much simpler in those good ole days... your
betcha... the smell of a well oiled machine, a whiff of ozone
Andy,
When using FSK and the MMTTY/N1MM software, the NET button has no effect. That
button is used only when your setup is configured for AFSK mode.
Regarding the AFC button, you may or may not want to have that turned on. It
depends on how you are operating. When you are searching for
That's an interesting frequency to select for the source of voice qrm. I
wouldn't be so fast to blame VE's or other non-US stations for this increased
interference. That is the BFO (14070 dial) frequency for virtually every
transceiver running PSK on 20 meters.
With the proliferation of PSK31
- Original Message -
From: Robert Chudek - K0RC [EMAIL PROTECTED]
To: Minnesota Wireless Association [EMAIL PROTECTED]; TCDXA
[EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Friday, January 18, 2008 11:32 PM
Subject: Re: [MWA] ARLX002 Lunar Echo Experiment looking for Amateur
- Original Message -
From: Robert Chudek - K0RC
To: [EMAIL PROTECTED]
Sent: Friday, January 18, 2008 11:51 PM
Subject: HAARP echo report
Hello researchers,
I am located in East Central Minnesota (45.4123 N 92.8823 W) and am receiving
the 6792.5 TX signal up to S-9 level. I have
I am not a sailor nor do I have any experience at sea. So as a layman, it is
unfathomable to me that anyone would risk their life venturing out of port and
rely on amateur radio for their communication needs.
Amateur radio for recreational use, certainly... a backup communication system,
--- In digitalradio@yahoogroups.com, [EMAIL PROTECTED] wrote:
-Original Message-
From: digitalradio@yahoogroups.com
[mailto:[EMAIL PROTECTED] On
Behalf Of John Becker, WØJAB
Sent: Sunday, November 18, 2007 9:11 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] PSK63
@yahoogroups.com, Robert Chudek [EMAIL PROTECTED]
wrote:
Brian,
A minor correction to the statement WF1B supported quite a few TU
types but no sound cards.
RTTY by WF1B supported the RITTY program by Brian, K6STI.
http://www.eham.net/reviews/detail/235
73 de Bob - KØRC
That would be an error. AMTOR is a digital mode and is equivalent to RTTY.
http://www.arrl.org/tis/info/digital.html
73 de Bob - KØRC in MN
- Original Message -
From: Dave
To: digitalradio@yahoogroups.com
Sent: Thursday, October 25, 2007 6:21 PM
Subject: [digitalradio]
I meant to type: This technique will lead to a dis-qualification because...
73 de Bob - KØRC in MN
- Original Message -
From: Robert Chudek
To: digitalradio@yahoogroups.com
Sent: Thursday, October 18, 2007 8:58 PM
Subject: Re: [digitalradio] Newbie question
Technically this will work. It would be poor operating practice because you
will transmit two simultaneous PSK signals and occupy twice the bandwidth
necessary for a QSO. In a digital contest this technique will lead to a
qualification because you are only allowed one TX signal on the band at a
I just heard a QSO on 28.300 on LSB between two PA stations. It must be new
operators not having developed their skills yet.
73 de Bob - KØRC in MN
- Original Message -
From: Dave 'Doc' Corio
To: digitalradio@yahoogroups.com
Sent: Saturday, June 30, 2007 7:33 PM
Subject:
-
From: Simon Brown
To: digitalradio@yahoogroups.com
Sent: Saturday, June 30, 2007 11:53 PM
Subject: Re: [digitalradio] Very confused
10m LSB is legal in many if not all European countries.
Simon Brown, HB9DRV
- Original Message -
From: Robert Chudek
I
Hello John,
Technology is changing this concept. I was recently re-educated on this topic
after returning from a ham radio hiatus. Like you, I grew up on the principle
you mentioned in your message, the transmit dial frequency is the Mark
frequency.
This statement is no longer true or false!
So Leigh,
I now realize it was you that furthered your research at Rockwell Automation.
Although this video is 10-years old, it fits the timeline you suggested below.
http://emuse.ebaumsworld.com/video/watch/95
73 de Bob - KØRC in MN
- Original Message -
From: Leigh L Klotz,
On 7147 KHz at about 14:00 UTC today there was a 10~12 KHz wide digital signal
that was booming in. It's still there 2 hours later but only S-5 now. Can
anyone tell me what this noise is about? It sounds almost at bad as the old
Russian jamming signals from years gone by.
73 de Bob - KØRC in
Andy,
There should be no detectable difference between an AFSK and FSK signal on the
receiving end. Are you sure your tones were correct on FSK? The symptom you
describe sounds like you may have been transmitting reversed tones. There is
a menu setting to flip the polarity of the FSK keying in
Andy,
In my opinion, that feature is in a gray area, between useful and practical.
I do believe this feature in the Icom has helped motivate many hams to give
RTTY a try. Once they see the messages being exchanged, it becomes an incentive
to investigate what is needed to participate. I suppose
Dave,
Those connections are correct if your FSK signal transmits right side up. If
you discover it transmits up side down, then use pin-4 on the PK-232 DIN plug
instead of pin-1. I think the Icom radios work properly on pin-1 and the
Kenwoods require pin-4.
73 de Bob - KØRC in MN
MN
Jose,
Here's a full technical description about this executable and its tasks:
http://support.microsoft.com/kb/314056
73 de Bob - KØRC in MN
- Original Message -
From: Jose A. Amador
To: digitalradio@yahoogroups.com
Sent: Thursday, January 11, 2007 1:30 PM
Subject: Re:
Huh? I don't hear anyone on 18.105 MHz. But 20 and 15 meters are loaded with
signals!
73 de Bob - KØRC in MN
- Original Message -
From: Roger J. Buffington
To: digitalradio@yahoogroups.com
Sent: Sunday, January 07, 2007 9:51 AM
Subject: [digitalradio] RTTY Contest on 17M
Well in christ's name (your terminology), your solution doesn't solve Andy's
problem of putting personal software on a company computer. You missed the part
that the registry is going to get updated (if it is even accessible). Read on.
Credible IT departments tie down the operating system very
drive.
Give it a try, if it doesn't work, the worst that can happen is
getting stuck with a usb pen drive that can carrie a lot of files.
Think of it.
Regards
On 12/30/06, Robert Chudek - KØRC [EMAIL PROTECTED] wrote:
Well in christ's name (your terminology), your solution doesn't
Chuck,
Well even with the new email header, the voice is still saying Trial...
Trial... ;-)
73 de Bob - KØRC in MN
- Original Message -
From: Chuck Mayfield - AA5J
To: digitalradio@yahoogroups.com
Sent: Tuesday, December 26, 2006 3:09 PM
Subject: Re: [digitalradio] SSB
Jerry, thanks for the link... lots of educational material on that site,
especially if your interest lies in propagation forecasting and Potentially
Hazardous Asteroids!
73 de Bob - KØRC in MN
- Original Message -
From: Jerry W
To: digitalradio@yahoogroups.com
Sent:
Bonnie, KQ6XA in part wrote,
The fact is, there's a proposed solution on the table. If you have a truly
constructive suggestion, let's hear it. Sexist or condescending remarks do
nothing to advance the discussion.
KØRC response,
Pulitzer Prize-winning author Laurel Thatcher Ulrich doesn't view
Bonnie,
That statement is quite arrogant... Skip IS educated on the topic and provided
several insights regarding current spectrum usage. Your next message suggests
to re-crystal hundreds of rigs just so your bandplan can fall into place and
be implemented?
I realize well-behaved women
Although I admire and support the concept, deployment, and technical
achievement of the NCDXA International Beacon System, I view this system as a
secondary user of the amateur radio spectrum with all the rights and
privileges of a secondary user.
Certainly the goal of avoiding interference to
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