Re: [digitalradio] Re: Digital Modes Presentation (Need Help)

2009-01-16 Thread Miroslav Skoric
Ian Wade wrote:

> 
> So you don't always need high tech aids when giving lectures. Good luck 
> with yours.
> 

Thank you for suggestion, Ian! Sounds interesting ("Baaa...")

Misko YT7MPB



Re: [digitalradio] Re: AX.25 modem as an infrastructure?

2009-01-16 Thread Miroslav Skoric
Vojtech Bubnik wrote:

> With your ad-hoc approach you would either broadcast data to all nodes
> in the network (APRS approach), or broadcast routing tables (FlexNet
> approach) or broadcast request to connect (I don't know any such AX.25
> system). Would you be more specific about your approach? Into which
> category it falls?
> 

Vojtech et al,

Well, I suppose it should be the broadcasting routing tables approach.
Actually, when an end-user station becomes active on the air, its
internal "node" should broadcast only an empty routing table (or, maybe,
a saved table from the "last known state" of its internal node). As soon
as the "node" receives the routing table from the other station(s), it
becomes populated with new routes and, accordingly to the new routes,
redirects his end-user's data and (dis)connection requests (SABM's, DM's
etc) to the best possible route etc ...

> Flexnet was probably the best AX.25 system designed with working auto
> router, but still it took some time before the routing tables were
> updated after a station connected / disconnected. And it was using
> dedicated links between nodes, so there was no hidden transmitter problem.
> 

Ok, but doesn't every AX.25 system take some time before the routing
tables were updated?

The hidden transmitter problem might be an issue too, but at this stage
of invention I did not think about, considering that an internal node
incorporated within an AX.25 station would just add some more traffic
(broadcast routing tables) - that might be usable in areas where are not
'official' nodes in use (rural areas or something like that, so every
user can serve as a network node for the others).

Misko YT7MPB




[digitalradio] Real time audio frequency multiplication sofware

2009-01-16 Thread Graham
Has anyone seen such a software as a real time audio frequency
multiplier ..

Ie pc soundcard based , audio in / audio out .. not frequency shifted
but multiplied in frequency by a factor ..ie  x 4 :-

200 hz in = 800  Hz out
400 hz in = 1600 Hz out 
800 hz in = 3200 Hz out

The event time is not changed, so its not like a tape speed changer
where the duration is also modified .. amplitude liniartity would be
'nice' but not 100 % important 

can it be done ? has it ? music production ?

Tnx- G .. 







[digitalradio] QRV MFTTY -- 14073

2009-01-16 Thread Tony
All,

I'll be QRV MFTTY (14073 USB) until 2215z. 

Mode: Half Speed. 

Tony -K2MO



Re: [digitalradio] MFTTY Path Simulaitons

2009-01-16 Thread Tony
Sigi,

> what speed did you use for the path simulation?

I used half-speed. I'll test the mode at different speeds and will post the 
results.

Tony -K2MO



Re: [digitalradio] MultiPSK and ALE141A

2009-01-16 Thread Patrick Lindecker
Hello John, Rick and all:

For ALE and ALE400 with Multipsk, consult the file 
ALE_and_ALE400_easy_with_Multipsk.doc: 
http://f6cte.free.fr/ALE_and_ALE400_easy_with_Multipsk.doc
 
73
Patrick


- Original Message - 
From: "Rick W" 
To: 
Sent: Friday, January 16, 2009 5:16 AM
Subject: Re: [digitalradio] MultiPSK and ALE141A


> Hi John,
> 
> Tried the calls plus HFN and QRZ but the band is closed from SW WI at 
> 0400Z.
> 
> 73,
> 
> Rick, KV9U
> 
> 
> John Bradley wrote:
>>
>> for those of you who may be interested, VE5GPM and VE5MU are currently 
>> on 14111.0 USB running 141A found on MultiPSK
>>
>> Please try and transfer small text files (under 3K) to either of these 
>> stations. They are both programmed to respond to either a HFN or QRZ 
>> call, so will respond to your sounding.
>>
>> The idea is to step beyond sending 1 line messages , and into an area 
>> that might have practical applications, especially if we could 
>> convince Patrick to
>>
>> add some “store and forward” ability.
>>
>> Under reasonable conditions a 1K file can transfer in under 3 minutes. 
>> Both stations are running TS480SAT transceivers at about 75 watts.
>>
>> John
>>
>> VE5MU
>>
>> 
>> 
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - http://www.avg.com 
>> Version: 8.0.176 / Virus Database: 270.10.7/1895 - Release Date: 1/15/2009 
>> 7:46 AM
>>
>>   
> 
> 
> 
> 
> Announce your digital presence via our Interactive Sked Page at
> http://www.obriensweb.com/sked
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
>

Re: [digitalradio] MFTTY error '380'

2009-01-16 Thread Siegfried Jackstien
i don´t know where the error message is coming from
i never deinstalled the soft
just overwritten the previus version with the new one
but you have to "unclick" make shortcuts to programm folder and "uncklick" make 
shortcut to desktop
i worked fine for me but the cleanest way is everytime you install a new soft
you should deinstall the older one first
hope that helps a bit
greetz
dg9bfc
  - Original Message - 
  From: kh6ty 
  To: digitalradio@yahoogroups.com 
  Sent: Friday, January 16, 2009 3:00 PM
  Subject: Re: [digitalradio] MFTTY error '380'


  The reason for a version change IS because something has changed. There are 
  many reasons under Visual Basic for getting a run-time error message, and 
  perhaps your reload then overwrote the older values the program was still 
  using, and that is why it is working now.

  Just my guess, not knowing the details of Norbert's code.

  It is usually best when upgrading to delete all previous code, such as a 
  .ini file, etc, but I do not know what or where MFTTY is writing to the hard 
  disk, so deleting all the previous files before upgrading is not possible, 
  and we are left with having the program just overwrite them.

  73, Skip KH6TY

  - Original Message - 
  From: "Russell Blair" 
  To: "Digital Radio" 
  Sent: Friday, January 16, 2009 8:43 AM
  Subject: [digitalradio] MFTTY error '380'

  I updated to the newer version 3.0.146, and I am getting a (run-time 
  error'380' Invalid property value), this error didn't show up in any of the 
  older version, I have to delete the program and reload it to get to run. 
  After that it work fine. Has something changed in between versions. That 
  would cause this to happen?

  Russell

  =
  IN GOD WE TRUST !
  =
  Russell Blair (NC5O) Skype-Russell.Blair Hell Field #300 DRCC #55 30m 
  Dig-group #693

  Internal Virus Database is out of date.
  Checked by AVG - http://www.avg.com
  Version: 8.0.138 / Virus Database: 270.9.2/1785 - Release Date: 11/13/2008 
  9:12 AM



   

[digitalradio] KN4LF Daily LF/MF/HF/6M Frequency Radiowave Propagation Forecast #2009-03

2009-01-16 Thread Thomas F. Giella KN4LF
The KN4LF Daily LF/MF/HF/6M Frequency Radiowave Propagation Forecast 
#2009-03 has been published on Friday 01/16/2009 at 1500 UTC, valid  UTC 
Saturday 01/17/2009 through 2359 UTC Friday 01/23/2009 at 
http://www.kn4lf.com/kn4lf6.htm .


73 & GUD DX,
Thomas F. Giella, KN4LF
Lakeland, FL, USA
kn...@arrl.net

KN4LF Daily Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm

KN4LF Daily LF/MF/HF/6M Frequency Radiowave Propagation Forecast & Archive:
http://www.kn4lf.com/kn4lf6.htm

KN4LF 160 Meter Radio Propagation Theory Notes:
http://www.kn4lf.com/kn4lf8.htm

LF/MF/HF/VHF Frequency Radiowave Propagation Email Reflector:
http://montreal.kotalampi.com/mailman/listinfo/kn4lf

Harmful Man Induced Climate Change (Global Warming) Refuted:
http://www.kn4lf.com/globalwarminglie.htm




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Re: [digitalradio] MFTTY error '380'

2009-01-16 Thread Russell Blair
Yes I have been deleteing the program before I install the new one. Maybe 
Norbert can put some light on this,
 I need to get the Com-port1 to work, I have to use VOX, in the program it 
access the com port-1, because if I try to start MMTTY it sayes it cant star 
com port 1. MFTTY is just not keying the radio. The radio works with MMTTY, 
HRD, and Commander with MultiPSK on keying the radio all works fine.
 
Russell 


 
= 
IN GOD WE TRUST ! 
= 
Russell Blair (NC5O)
Skype-Russell.Blair
Hell Field #300
DRCC #55
30m Dig-group #693

--- On Fri, 1/16/09, kh6ty  wrote:

From: kh6ty 
Subject: Re: [digitalradio] MFTTY error '380'
To: digitalradio@yahoogroups.com
Date: Friday, January 16, 2009, 8:00 AM






The reason for a version change IS because something has changed. There are 
many reasons under Visual Basic for getting a run-time error message, and 
perhaps your reload then overwrote the older values the program was still 
using, and that is why it is working now.

Just my guess, not knowing the details of Norbert's code.

It is usually best when upgrading to delete all previous code, such as a 
.ini file, etc, but I do not know what or where MFTTY is writing to the hard 
disk, so deleting all the previous files before upgrading is not possible, 
and we are left with having the program just overwrite them.

73, Skip KH6TY

- Original Message - 
From: "Russell Blair" 
To: "Digital Radio" 
Sent: Friday, January 16, 2009 8:43 AM
Subject: [digitalradio] MFTTY error '380'

I updated to the newer version 3.0.146, and I am getting a (run-time 
error'380' Invalid property value), this error didn't show up in any of the 
older version, I have to delete the program and reload it to get to run. 
After that it work fine. Has something changed in between versions. That 
would cause this to happen?

Russell

 =
IN GOD WE TRUST !
 =
Russell Blair (NC5O) Skype-Russell. Blair Hell Field #300 DRCC #55 30m 
Dig-group #693

Internal Virus Database is out of date.
Checked by AVG - http://www.avg. com
Version: 8.0.138 / Virus Database: 270.9.2/1785 - Release Date: 11/13/2008 
9:12 AM

 














  

Re: [digitalradio] MFTTY error '380'

2009-01-16 Thread kh6ty
The reason for a version change IS because something has changed. There are 
many reasons under Visual Basic for getting a run-time error message, and 
perhaps your reload then overwrote the older values the program was still 
using, and that is why it is working now.

Just my guess, not knowing the details of Norbert's code.

It is usually best when upgrading to delete all previous code, such as a 
.ini file, etc, but I do not know what or where MFTTY is writing to the hard 
disk, so deleting all the previous files before upgrading is not possible, 
and we are left with having the program just overwrite them.

73, Skip KH6TY



- Original Message - 
From: "Russell Blair" 
To: "Digital Radio" 
Sent: Friday, January 16, 2009 8:43 AM
Subject: [digitalradio] MFTTY error '380'


I updated to the newer version 3.0.146, and I am getting a (run-time 
error'380' Invalid property value), this error didn't show up in any of the 
older version, I have to delete the program and reload it to get to run. 
After that it work fine. Has something changed in between versions. That 
would cause this to happen?

Russell

  =
IN GOD WE TRUST !
=
Russell Blair (NC5O)  Skype-Russell.Blair  Hell Field #300  DRCC #55  30m 
Dig-group #693





Internal Virus Database is out of date.
Checked by AVG - http://www.avg.com
Version: 8.0.138 / Virus Database: 270.9.2/1785 - Release Date: 11/13/2008 
9:12 AM




[digitalradio] MFTTY error '380'

2009-01-16 Thread Russell Blair
I updated to the newer version 3.0.146, and I am getting a (run-time error'380' 
Invalid property value), this error didn't show up in any of the older version, 
I have to delete the program and reload it to get to run. After that it work 
fine. Has something changed in between versions. That would cause this to 
happen?

Russell 

   = 
IN GOD WE TRUST ! 
= 
Russell Blair (NC5O)  Skype-Russell.Blair  Hell Field #300  DRCC #55  30m 
Dig-group #693


  


Re: [digitalradio] MFTTY Path Simulaitons

2009-01-16 Thread Siegfried Jackstien
dear tony
what speed did you use for the path simulation?
when you take a slower mode the s7n will be higher cause the filter are narrower
that´s why i asked about used speed for the test
greetz
dg9bfc
sigi
  - Original Message - 
  From: Tony 
  To: digitalradio@yahoogroups.com 
  Sent: Friday, January 16, 2009 1:49 AM
  Subject: [digitalradio] MFTTY Path Simulaitons



  All, 

  It's good to see the enthusiasm about MFTTY. It has a nifty GUI and its easy 
to use. A few have mentioned a lack of lack of sensitivity and that does seem 
to be the case. But I think it's safe to say that we don't always need to bring 
an elephant gun to a turkey shoot ;  ). 

  For what it's worth, and with all due respect to the author, I've tested 
MFTTY with an HF path simulator and it is less sensitive and less robust than 
say PSK31. On air tests seem to show that the mode performs well with low power 
under quiet conditions. 

  Many thanks to Norbert and those like him who give us the opportunity to 
experiment and play with new modes. If it wasn't for them, we'd still be 
lugging those heavy RTTY machines into the shack ;  ). 

  Tony -K2MO


   

Re: [digitalradio] New to the Group

2009-01-16 Thread Siegfried Jackstien
if you want a multimode programm then go for multipsk
it has many many modes built in and it is easy to use
it is the best multimode software that i could find
but surely others will tell you that there are several other soft available
try it out it is a freeware soft
greetz
dg9bfc
sigi
  - Original Message - 
  From: clarkmvimi 
  To: digitalradio@yahoogroups.com 
  Sent: Friday, January 16, 2009 2:28 AM
  Subject: [digitalradio] New to the Group


  Good day. I am new to the group and digital modes. My name is Steve
  Clark V73CS and I am located in the Marshall Islands. I am wanting to
  setup a digital station here. I have someone sending me an AEA 232
  MBX for my station here. I was wondering about software for it and
  what other TNC/interface would be recomended for a beginner to setup a
  digital station. Thanks in advance for the bandwidth and have a great
  day.

  73
  Steve Clark
  V73CS/N4TKP
  Majuro, Marshall Islands