[Moon] Re: Reply to Peter SM2CEW

Fri Feb 9 22:38:18 CET 2007

If you should be honest what have you achieve with that.
If we should do a conclusion.
Whats the interst of the hobby?
Work as many qso`s as possible?????
Or building your stuff and dig out the week sigs.
Thats EME,   Not looking at a screen for something that you don`t need an 
antenna for.
Who are you fouling??  your self.

Sm4IVE

----- Original Message ----- 
From: "john battin" <jbattin at msn.com>
To: <dougw0ah at gmail.com>; <microwave at echo.valinet.com>; 
<moon at moonbounce.info>
Sent: Friday, February 09, 2007 6:14 PM
Subject: RE: [Moon] Re: Reply to Peter SM2CEW

>
>
>
>>From: "Doug Allen" <dougw0ah at gmail.com>
>>To: microwave at echo.valinet.com, moon at moonbounce.info
>>Subject: [Moon] Re: Reply to Peter SM2CEW
>>Date: Fri, 9 Feb 2007 03:09:37 +0000
>>
>>I have received several thoughtful replies from W5UWB, KB8RQ, and VK7MO
>>suggesting that the "tightening" I anticipated is already a feature of the
>>newest version of WSJT and that the bogus calls I received were followed 
>>by
>>a ? which is a giveaway that they are bogus.  Yes, I remember that from
>>September.  Other worth while points were also made, including that there
>>are a number of "confidence checks" such as sync levels to gain whatever
>>level of confidence you are comfortable with.  Thus, it comes down to
>>personal integrity which was always the case.  I also understand that 
>>during
>>my several year absence from EME all of this has been discussed ad 
>>nauseum.
>>So perhaps we should move on to other subjects now.
>>73,
>>Doug W0AH
>>
>>
>>On 2/8/07, Doug Allen <dougw0ah at gmail.com> wrote:
>>>
>>>Peter, SM2CEW, describes JT-65 in a way that makes me question the
>>>validity of JT-65 contacts, but I am not competent to discern whether his
>>>software description is accurate. I have operated meteor scatter for 43
>>>years. For almost a decade during the 1990's, I operated conventional CW 
>>>EME
>>>with high power and a four 5 wl 2M yagi az-el array. For several of those
>>>years, I was editor/publisher of the "EME Newsletter" which had 
>>>subscribers
>>>from over 30 countries. The EME operating procedure we all used was 
>>>adapted,
>>>I think, from meteor scatter operating procedures, and was 
>>>uncontroversial.
>>>I had little reason to publish anything about it during those years.
>>>
>>>I first used digital high speed meteor scatter in the early 1990's with
>>>software that preceeded Joe Taylor's WSJT, and I have used WSJT FSK-441 
>>>from
>>>the beginning, making the first meteor scatter contacts with it, I 
>>>believe,
>>>from Mexico and from Belize in the 1990's. I think FSK-441 is a wonderful
>>>advance in technology making meteor scatter communication possible with
>>>modest stations at any time. I continue to use it and think Joe Taylor 
>>>has
>>>made a wonderful contribution to amateur radio. WSJT is a free program 
>>>used
>>>by thousands. Thank you Joe!
>>>
>>>Recently, I have made a number of JT-65 EME contacts with 600 watts and a
>>>2M 5 wl yagi from my new SC QTH. The decoding sometimes did not convince 
>>>me
>>>that I had made a solid contact. Let me give a related observation. 
>>>Several
>>>times I ran JT-65 in AUTO mode with message # 6, "CQ W0AH EM85," BUT 
>>>WITHOUT
>>>ACTUALLY TRANSMITTING. Without transmitting, I have received up to a half
>>>dozen calls with signal reports from different stations in one hours 
>>>time!
>>>Obviously, JT-65 decodes a lot of misinformation from white noise. I will
>>>leave others to evaluate the significance of this observation, but I 
>>>wonder
>>>if Joe might not "tighten" the decoding thresholds a bit in order to make
>>>the software receive parameters more analogous to the aural reception
>>>parameters of conventional CW EME, thus addressing Peter's criticism 
>>>while
>>>at the same time satisfying, I would hope, the many dedicated users of 
>>>the
>>>software?
>>>
>>>Doug Allen W0AH EM85  Inman, SC
>>>
>>>
>>>--
>>>Doug Allen
>>>Here's a new webpage I'm working on:
>>>http://DougW0AH.googlepages.com/home<http://dougw0ah.googlepages.com/home>
>>>
>>>And here's the 73 CIRCLES blog-
>>>http://73circles.blogspot.com/
>>
>>
>>
> I am new to EME. I built the system in anticipation of CW (my love) but 
> quickly became lonely as I was often the only one on the band. Knowing 
> absolutely nothiing other than what I could read from the internet, I 
> downloaded JT-65, fumbled around for a while and began making contacts. I 
> am very impressed with how solid the software is. I have worked over 150 
> stations on JT-65 in the last few months ... never had a false decode. I 
> have called hundreds of CQ and when there is no answer .. it is blank. I 
> think the sensitiivity of the system is good --- I often decode at -31 and 
> work a lot of single yagi stations. I am having fun. I do not compare it 
> with CW .... It is different...so let it be different.
> John  K9DX
>
>
>
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