Skip,
MT63-1000 has a -5 dB minimum S/N, but MFSK16 has a -13.5 dB minimum S/N, so
the static tests you made must be at signal levels high enough that MT63-1000
decodes, which may not be a realistic level.
That is true. Fortunately, there are times when signals are above the decode
threshold
-
From: Tony
To: digitalradio@yahoogroups.com
Sent: Sunday, March 22, 2009 3:03 AM
Subject: Re: [digitalradio] THOR is static-proof (Re: KV9U - MT63)
Skip,
MT63-1000 has a -5 dB minimum S/N, but MFSK16 has a -13.5 dB minimum S/N,
so the static tests you made must be at signal
, March 22, 2009 3:04 AM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] THOR is static-proof (Re: KV9U - MT63)
Skip,
MT63-1000 has a -5 dB minimum S/N, but MFSK16 has a -13.5 dB minimum
S/N, so the static tests you made must be at signal levels high enough
that MT63-1000 decodes
To: digitalradio@yahoogroups.com
Sent: Sunday, March 22, 2009 9:58 AM
Subject: RE: [digitalradio] THOR is static-proof (Re: KV9U - MT63)
I would like to remind all, if you are not already aware, to turn AGC
off when static crashes are an issue.
If you are fortunate enough to operate in a mixed mode net
Tony wrote:
The most impressive thing about MT63 is how it seems to resist heavy
static crashes. I made a few recordings with short segments of
the signal removed to simulate this type of QRN and there was little
effect on copy.
What about THOR? Thor stated to be more static-proof.
Sent: Saturday, March 21, 2009 3:55 AM
Subject: Re: [digitalradio] THOR is static-proof (Re: KV9U - MT63)
Tony wrote:
The most impressive thing about MT63 is how it seems to resist heavy
static crashes. I made a few recordings with short segments of
the signal removed to simulate
particular mission out of all the many available choices.
73, Skip KH6TY
NBEMS Development Team
- Original Message -
From: Tony
To: digitalradio@yahoogroups.com
Sent: Saturday, March 21, 2009 5:05 PM
Subject: Re: [digitalradio] THOR is static-proof (Re: KV9U - MT63
Tony,
Further complicating the static crash test conclusions is the effect of the
static on the receiver AGC. If a long AGC constant is being used, the static
crash is going to desensitize the receiver for as long as the AGC holds the
receiver sensitivity above the decoding threshold. In such
BROWNMFOauJgES OVER THE LAZYDOG
THE QUIC BROW; FO_EJUC2Y OVER T? LAZj DOG
- Original Message -
From: Rein Couperus [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Tuesday, October 14, 2008 4:02 AM
Subject: Re: [digitalradio] THOR robustness or lack of thereof
I have tested THOR22
for schedules
73,
Rein PA0R
-Ursprüngliche Nachricht-
Von: Tony [EMAIL PROTECTED]
Gesendet: 13.10.08 22:42:25
An: digitalradio@yahoogroups.com
Betreff: Re: [digitalradio] THOR robustness or lack of thereof
Rick,
On other thing that I can not understand is why THOR's
is unique to Thor or is the mode simply less
tolerable to signal spread as the path simulator indicates.
Tony, KHMU
- Original Message -
From: Rick W [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Saturday, October 11, 2008 5:39 PM
Subject: [digitalradio] THOR robustness or lack
Rick,
On other thing that I can not understand is why THOR's performance
proved to be so poor on Tony's tests.
Dave points out that this could be a sample rate problem. Fldigi did just
fine with other modes during the HF path simulations so the question is
whether the sampling issue is
The following is an excerpt from the web page Sights and Sounds of
Digital Signals, http://www.w1hkj.com/FldigiHelp/Modes/index.htm.
THOR Modes
General Description
THOR is a family of offset incremental
Great information, Dave,
On other thing that I can not understand is why THOR's performance
proved to be so poor on Tony's tests. The robustness to multipath and
Doppler does not seem to show up although sensitivity at -15 dB SNR
seems quite good.
It might be understandable with the more
Hi Matthew
This is from [EMAIL PROTECTED]:
garylinnrobinson wrote:
Dave,
This is exciting news - especially the Windows version and the Thor
mode. One question though. MltiPSK has DominoEX and has a FEC button
on it that enables FEC in the DominoEX modes. Is THOR the same as or
HELLO,
WHERE CAN I FIND SOFTWARE FOR THOR
MATTHEW A. GREGORY
KC2PUA
I am not sure THOR has officially been released yet, it was in Beta testing
last I checked.
On Thu, Aug 7, 2008 at 9:49 PM, matt gregory [EMAIL PROTECTED] wrote:
HELLO,
WHERE CAN I FIND SOFTWARE FOR THOR
MATTHEW A. GREGORY
KC2PUA
--
Andy K3UK
www.obriensweb.com
(QSL via N2RJ)
Hi Simon
Great news !
Have you also thought about implementing Patrick's ALE400 in your
software? It is a fantastic ARQ mode !
73 de LA5VNA Steinar
Simon Brown skrev:
I'll add it to Digital Master 780 as soon as Dave (fldigi) is happy with the
mode. It'll take about one or two evenings,
Hi Steinar,
I haven't considered adding ALE400.
Simon Brown, HB9DRV
--
From: Steinar Aanesland [EMAIL PROTECTED]
Have you also thought about implementing Patrick's ALE400 in your
software? It is a fantastic ARQ mode !
Hi Andy ,
Any news about the Thor mode ?
73 de LA5VNA Steinar
Andrew O'Brien skrev:
Yes, essentially.
Andy K3UK
On Tue, May 27, 2008 at 6:11 AM, Steinar Aanesland [EMAIL PROTECTED] wrote:
Hi all,
On the K3UK's Digitalradio Sked Page I am reading about a Thor mode.
Is this
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
I'll add it to Digital Master 780 as soon as Dave (fldigi) is happy with the
mode. It'll take about one or two evenings, that's all.
Simon Brown, HB9DRV
--
From: Joe Veldhuis [EMAIL PROTECTED]
Thor will be in Fldigi 3.0, which should be released
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