Message-ID: <20090506225829.1vrsvh9ozjwcwog8@webmail4.kuleuven.be>
Date: Wed, 06 May 2009 22:58:29 +0200
From: Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>
To: rsgb_lf_group@blacksheep.org
References: 	<200904031959.n33Jxrvn028438@smtpa1.mediabeam.com><BLU146-W15B01E5C9585C664E3CD90CF890@phx.gbl><20090504220936.59jcwemhlo004wkk@webmail4.kuleuven.be><01a401c9ccfd$f04e8640$6401a8c0@asus><20090504233650.cpq3ip6kir688ogo@webmail4.kuleuven.be><005d01c9cd6b$620ddc00$6401a8c0@asus><20090505121435.9F59DF3863@smtps02.kuleuven.be><20090505152548.71C37F3865@smtps02.kuleuven.be><00df01c9cdac$e9a407c0$6401a8c0@asus><20090505214422.o47capffyyb4oog0@webmail4.kuleuven.be><20090505221513.oso5g5yn6csgwsw4@webmail4.kuleuven.be><E6471A24F0BE47A19C776A2EEF8581AB@2a2d7ed321c6425><20090505225610.msbh1wypf7cws8ks@webmail4.kuleuven.be><DC291D3A78A34E508060704C561EE54F@2a2d7ed321c6425><20090505234705.h93clwtj8o8o8kg4@webmail4.kuleuven.be><44C635CA641E4CA2BFEAEB12F09E3436@2a2d7ed321c6425><20090506220425.t1ys6qdod0ys0g88@webmail4.kuleuven.be><004001c9ce88$c0371800$6401a8c0@asus>
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I noticed.
Last night I could see it on all 3 UK grabbers, tonight only faint =20
traces on at YXM

73, Rik

Quoting Gary - G4WGT <g4wgt@tiscali.co.uk>:

> Rik,
>
> You signal not as strong tonight so far.
>
> Gary.
>
> -----Original Message-----
> From: owner-rsgb_lf_group@blacksheep.org
> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Rik Strobbe
> Sent: 06 May 2009 21:40
> To: rsgb_lf_group@blacksheep.org
> Subject: RE: AW: AW: AW: LF: RE: rtty test
>
> Gary, Gerhard,
>
> right now (20:35 UTC) I can see traces of my signal on the G3YXM
> grabber and strong signals from Gary.
>
> 73, Rik
>
> on the
>
> Quoting Gary - G4WGT <g4wgt@tiscali.co.uk>:
>
>> Hi Rik & Gerhard,
>>
>> When Rik makes his CQ call I will attempt to make a 2 way contact using
> the
>> same settings.
>>
>> Any reports will be welcome.
>>
>> 73
>>
>> Gary - G4WGT.
>>
>> -----Original Message-----
>> From: owner-rsgb_lf_group@blacksheep.org
>> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Rik Strobbe
>> Sent: 06 May 2009 21:04
>> To: rsgb_lf_group@blacksheep.org
>> Subject: Re: AW: AW: AW: LF: RE: rtty test
>>
>> Hello Gerhard,
>>
>> tonight I will call CQ on 503.5kHz starting 20:30 til 21:20 every 10
>> minutes.
>> Same mode as yesterday.
>>
>> 73, Rik  ON7YD - OR7T
>>
>> Quoting "Beckmann, Gerhard" <beckmann.erlangen@freenet.de>:
>>
>>> Hello Rik,
>>>
>>> Sorry, but wasn't able to answer earlier.
>>> Well actually, please let me know when you will prepare the next RTTY
> test
>>> transmission and I will try to decode your signals. I am looking forward
>> to
>>> verify a new mode.
>>>
>>> Vy 73 de Gerhard  /  DK6NI
>>>
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>>
>>>
>>> -----Urspr=FCngliche Nachricht-----
>>> Von: owner-rsgb_lf_group@blacksheep.org
>>> [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Rik Strobbe
>>> Gesendet: Dienstag, 5. Mai 2009 23:47
>>> An: rsgb_lf_group@blacksheep.org
>>> Betreff: Re: AW: AW: LF: RE: rtty test
>>>
>>> Hello Gerhard,
>>>
>>> I will do a last transmission at 22:00 UTC
>>> Otherwise we can try tomorrow (WX permitting)
>>>
>>> 73, Rik
>>>
>>> Quoting "Beckmann, Gerhard" <beckmann.erlangen@freenet.de>:
>>>
>>>>
>>>>
>>>> Hello Rik,
>>>>
>>>> I have just installed MMTTY and playing with the settings and need one
>>> more
>>>> chance for decoding....
>>>>
>>>> Vy 73 de Gerhard  //  DK6NI
>>>>
>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>>>
>>>>
>>>> -----Urspr=FCngliche Nachricht-----
>>>> Von: owner-rsgb_lf_group@blacksheep.org
>>>> [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Rik Strobbe
>>>> Gesendet: Dienstag, 5. Mai 2009 22:56
>>>> An: rsgb_lf_group@blacksheep.org
>>>> Betreff: Re: AW: LF: RE: rtty test
>>>>
>>>> Hello Gerhard,
>>>>
>>>> thanks for the report, did you try to decode the RTTY ?
>>>>
>>>> 73, Rik  ON7YD - OR7T
>>>>
>>>> Quoting "Beckmann, Gerhard" <beckmann.erlangen@freenet.de>:
>>>>
>>>>>
>>>>> Hello Rik,
>>>>>
>>>>> Your signal is fine visible on my waterfall, but with deep QSB-Phases.
>>>>>
>>>>> Vy 73 de Gerhard // DK6NI  (JN59LN)
>>>>>
>>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -----Urspr=FCngliche Nachricht-----
>>>>> Von: owner-rsgb_lf_group@blacksheep.org
>>>>> [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Rik Strobbe
>>>>> Gesendet: Dienstag, 5. Mai 2009 22:15
>>>>> An: rsgb_lf_group@blacksheep.org
>>>>> Betreff: RE: LF: RE: rtty test
>>>>>
>>>>> Faint traces of my signal are showing up on the G4WGT grabber.
>>>>> I will transmit every 10 minutes starting 20:40 UTC until 21:30 UTC
>>>>> and listen inbetween.
>>>>>
>>>>> 73, Rik  ON7YD - OR7T
>>>>>
>>>>> Quoting Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>:
>>>>>
>>>>>> Hello Gary, LF,
>>>>>>
>>>>>> I just had a first transmission.
>>>>>> I will try short transmissions every 10-15 minutes or so until my
>>>>>> signal shows up un your grabber. Then I will start longer
>> transmissions.
>>>>>>
>>>>>> 73, Rik  ON7YD - OR7T
>>>>>>
>>>>>> Quoting Gary - G4WGT <g4wgt@tiscali.co.uk>:
>>>>>>
>>>>>>> OK Rik,
>>>>>>>
>>>>>>> I will look at the settings you describe in MTTY to allow me to
>>> monitor,
>>>>> I
>>>>>>> normally use TrueTTY.
>>>>>>>
>>>>>>> Thanks for the info.
>>>>>>>
>>>>>>> Cheers,
>>>>>>>
>>>>>>> Gary - G4WGT.
>>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: owner-rsgb_lf_group@blacksheep.org
>>>>>>> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Rik Strobbe
>>>>>>> Sent: 05 May 2009 16:26
>>>>>>> To: rsgb_lf_group@blacksheep.org
>>>>>>> Subject: RE: LF: RE: rtty test
>>>>>>>
>>>>>>> Gary, LF,
>>>>>>>
>>>>>>> I just had a look at MMTTY and it seems pretty easy to set it to 50H=
z
>>>>>>> shift and 22Bd baudrate.
>>>>>>> The way I did it:
>>>>>>> 1. As a start select 23Hz RTTY (in "Profiles")
>>>>>>> 2. In "Options" select "Setup MMTTY"
>>>>>>> 3. In the tab "Demodulator" change "Shift" from 23 tot 50 (it is not
>>>>>>> a standard option, but you can just type 50 into the field)
>>>>>>> 4. In the tab "Demodulator" change "Mark" to a suitable value (that
>>>>>>> is the audio frequency you get)
>>>>>>> 5. In the tab "Demodulator" change "Discriminator Type" from VCO to
>> FIR
>>>>> BPF
>>>>>>> 6. In the tab "Demodulator" change "Tap" from 72 to 256
>>>>>>> 7. In the tab "Demodulator" click on "OK"
>>>>>>> 8. In the tab "Decode" change "BaudRate" from 45 tot 22 and click
> "OK"
>>>>>>> Steps 5-7 set demodulator type, the values above are the result of
>>>>>>> some brief dry tests and can most likely still be optimized. You can
>>>>>>> do that in the main screen.
>>>>>>>
>>>>>>> If WX permits (no rain) I intend to run some tests between 20:30 and
>>>>>>> 21:30 UTC on 503.5kHz in mode USB (so if you listen in LSB don't
>>>>>>> forget to select reverse mode).
>>>>>>> I will announce the exact hours later this evening.
>>>>>>> Between transmissions I will listen on the same frequency.
>>>>>>>
>>>>>>> All reports (or replies) are welcome.
>>>>>>>
>>>>>>> 73, Rik  ON7YD - OR7T
>>>>>>>
>>>>>>> At 14:14 5/05/2009, you wrote:
>>>>>>>> Hello Gary,
>>>>>>>>
>>>>>>>> I had a closer look at the 23Hz shift option of MMTTY and it seems
>>>>>>>> to run at 45Bd what is on the edge regarding the shift/baudrate
>>>>>>>> ratio. That is most likely the reason why it is not so robust.
>>>>>>>> Using 45Bd at 85Hz shift would exceed the 100Hz bandwidth limit.
>>>>>>>> I guess the best option for RTTY would be a shift around 50Hz and a
>>>>>>>> lower baudrate (say 20Bd) what would well fit within the 100Hz
>>>>>>>> bandwidth and would have a sufficient shift/baudrate ratio to
>>>>>>>> provide a robust signal.
>>>>>>>> I will see if I can get such signal out of MMTTY and - if time
>>>>>>>> permits - run some tests tonight.
>>>>>>>>
>>>>>>>> 73, Rik  ON7YD - OR7T
>>>>>>>>
>>>>>>>> At 12:22 5/05/2009, you wrote:
>>>>>>>>> Hi Rik,
>>>>>>>>>
>>>>>>>>> You have experienced the same as I did with 23Hz shift, the signal
>>>>> needs
>>>>>>> to
>>>>>>>>> be very strong to decode. It was in the last 2 minutes that I got
>> the
>>>>>>>>> partial decode.
>>>>>>>>>
>>>>>>>>> A much better shift to use is the 85Hz which will fit into your
>> spec.
>>>>>>>>>
>>>>>>>>> I have had good QSO's with Chris G3XIZ in Biggleswade both of us
>>> using
>>>>>>> 85Hz.
>>>>>>>>>
>>>>>>>>> Give that a try next time & I believe I will get a much better
>> decode
>>>>>>>>> judging by the strength of your signal.
>>>>>>>>>
>>>>>>>>> 73
>>>>>>>>>
>>>>>>>>> Gary - G4WGT.
>>>>>>>>>
>>>>>>>>> -----Original Message-----
>>>>>>>>> From: owner-rsgb_lf_group@blacksheep.org
>>>>>>>>> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Rik
> Strobbe
>>>>>>>>> Sent: 04 May 2009 22:37
>>>>>>>>> To: rsgb_lf_group@blacksheep.org
>>>>>>>>> Subject: Re: LF: RE: rtty test
>>>>>>>>>
>>>>>>>>> Hello Gary,
>>>>>>>>>
>>>>>>>>> call the is almost right, locator completely.
>>>>>>>>> But not really impressive for 500mW ERP.
>>>>>>>>> I could see my signal on your grabber, some slow QSB but strong fo=
r
>>>>>>>>> the last 2 minutes or so.
>>>>>>>>> I used MTTY with the profile "23Hz RTTY (MTTY)" without any furthe=
r
>>>>>>>>> changes, not sure that this is the best mode.
>>>>>>>>> So any advice is welcome.
>>>>>>>>> I have also installed MultiPSK, but am still overwhelmed by the
>>> colors
>>>>>>>>> and options.
>>>>>>>>> I am allowed to use any digital mode as long as I stick to max.
>> 100Hz
>>>>>>>>> bandwidth.
>>>>>>>>>
>>>>>>>>> 73, Rik  ON7YD - OR7T
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Quoting Gary - G4WGT <g4wgt@tiscali.co.uk>:
>>>>>>>>>
>>>>>>>>>> Hi Rik,
>>>>>>>>>>
>>>>>>>>>> This is the best I could do, it looks like almost your call sign=20=
&
>>>>>>> locator
>>>>>>>>>> :-
>>>>>>>>>>
>>>>>>>>>> RHTQHTST DE TC(TIOJ7T OR1T JO20IX
>>>>>>>>>>
>>>>>>>>>> 73
>>>>>>>>>>
>>>>>>>>>> Gary - G4WGT.
>>>>>>>>>>
>>>>>>>>>> -----Original Message-----
>>>>>>>>>> From: owner-rsgb_lf_group@blacksheep.org
>>>>>>>>>> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Rik
>> Strobbe
>>>>>>>>>> Sent: 04 May 2009 21:10
>>>>>>>>>> To: rsgb_lf_group@blacksheep.org
>>>>>>>>>> Subject: LF: rtty test
>>>>>>>>>>
>>>>>>>>>> dear all,
>>>>>>>>>>
>>>>>>>>>> I will run a short (10 minute) rtty test (23Hz shift) on 503.500
> at
>>>>>>> 21UTC
>>>>>>>>>> Reports and/or reply welcome.
>>>>>>>>>>
>>>>>>>>>> 73, Rik  ON7YD - OR7T
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>
>
>
>
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