[Moon] The Swedish 4Th 432 & UP EME meeting CW
Dominique Fässler
dfaessler at bluewin.ch
Fri Aug 22 21:53:59 CEST 2014
Das Betrügen würde man korrekt gross schreiben... Schulbildung eines newsletter Schreiblings.
-----Original Message-----
From: Moon [mailto:moon-bounces at moonbounce.info] On Behalf Of Rainer
Sent: Freitag, 22. August 2014 13:57
To: Moon Reflector
Subject: Re: [Moon] The Swedish 4Th 432 & UP EME meeting CW
Don't turn around the facts ! The one who is personally attacking people is yourself only !!!
You only try to diffame and accuse people - ther is no facts or else in your attacks.
Just shut up as I told you before!
Am 22.08.2014 13:26, schrieb Bernd DF2ZC:
> That is the kind of replies I like...not dealing with facts, pure
> personal attacks and statements of the kind of "the Earth is a disk",
> it can't be true what I do not unterstand (in your case: what I'm not
> willing to understand).If you feel you need extra tuition on
> correlation please teach yourself on wikipedia or elsewhere before you
> start expressing false opinions.
>
> Lieber Rainer, wenn Du "Deinen" Reflektor schon als Hort der freien
> Diskussion bewirbst, dann verbitte ich mir auch solche Bevormundungen.
> Ich habe niemanden persönlich angegriffen, aber Ihr führt Euch alle
> stets so auf, als ob man jedem persönlich das betrügen unterstellt.
>
> 73 Bernd
>
>
> 2014-08-22 12:24 GMT+02:00, Rainer <df6na at df6na.de>:
>> It's not only wrong but it is also stupid!
>> Possibly you speak of your own experience and try to miscredit others.
>> Just stop this nonsens.
>>
>> 73, Rainer
>>
>> Am 22.08.2014 10:45, schrieb Bernd DF2ZC:
>>> Dear Russ,
>>>
>>> I am aware I run the risk of warming up this soup again but there is
>>> one paragraph in your correct statements I can't leave without
>>> comment:
>>>
>>>> I disagree about the comparison of knowing or having a list of
>>>> stations versus WSJT deep search. I am very familiar with how
>>>> these lists are used.
>>>> I have sat and watched operators of some big stations hear a
>>>> partial call and grab the list for the band and look through it for
>>>> the 3 letters they got, until the find a call that fits. Then they
>>>> answer the station sending OOO. That is exactly the same thing as
>>>> deep search, and in fact is often less reliable in terms of
>>>> figuring out the correct call.
>>> This use of a list is not at all the same as the ds process in JT65.
>>> While people using lists only copied for instance "K" and "TX" they
>>> then guess that it is K2TXB since that c/s is in their list but have
>>> no real basis for a guess. It could have been also an off-list
>>> callsign such as "W4KTX" for example.
>>>
>>> As you know, JT65 however does a correlation of the signal form in
>>> the noise with calculated signal forms based on possible
>>> combinations with callsigns in call3.txt. It then displays the
>>> result of that correlation with a confidence value of the result. It
>>> is no guess as above but a mathemactial method to compare two
>>> signals. The operator is then left to decide whether he trusts the
>>> result of that correlation or not, based on the confidence value
>>> attached to that result.
>>>
>>> Therefore the JT65 DS method is not to be compated to the theat
>>> guess into the blue some or many used in the pre WSJT era.
>>>
>>> Now I'm looking forward to the flaming by the handful of CWisKINGS
>>> that of course what I wrote here is wrong, including the notorious
>>> personally insulting comments of someone in HB9. For the latter
>>> applies the rule "if you get personal it shows you have no point
>>> factwise".
>>>
>>> 73 Bernd DF2ZC
>>>
>>>
>>>
>>>
>>> 2014-08-16 6:06 GMT+02:00, Russ K2TXB <k2txb at dxcc.com>:
>>>> Hello Chuck. Well but you know that I operated CW EME on two
>>>> meters for years with a 4 Yagi station. And yes, I made contacts
>>>> even with just one antenna. But tell me, with a station like that
>>>> could you contact other stations with same size antenna - maybe,
>>>> once in a great while. But I do it all the time. I have spent
>>>> many hours on CW with my current 2 Yagi station trying to work the
>>>> few stations that I can copy in the ATP's. Those stations are all
>>>> 'bug guns'. But most of them cannot hear me well enough to get my
>>>> call. In four hours I am lucky if I make one contact. Many of
>>>> those EU big guns are running more power that we are allowed over
>>>> here. So I hear them but they cannot copy me. And I run a keyer
>>>> and send very well-spaced and accurate CW (usually). Calling CQ is
>>>> not even worth my while if they cannot copy me when I am on their
>>>> frequency.
>>>>
>>>> Contrast all that with getting on for a couple of hours and making
>>>> 2 or three contacts on must any evening. I can easily do that with
>>>> WSJT on 2 meters. It is just not worth operating CW without a much
>>>> better antenna system - meaning more money, more problems with the
>>>> township, Neighbors, and XYL, more difficult maintenance, etc.
>>>>
>>>> As far as the costs are concerned, I deliberately quoted prices
>>>> that were a little high, because I did not want anyone to think I
>>>> was exaggerating how little I spent. Yes, I have built my own
>>>> antennas too, but it is a lot of work and time that I could spend
>>>> improving other areas of my station or just operating. But buy or
>>>> build, spend little or spend a lot, it will always cost a lot more
>>>> to put up a quality CW EME station.
>>>>
>>>> I disagree about the comparison of knowing or having a list of
>>>> stations versus WSJT deep search. I am very familiar with how
>>>> these lists are used.
>>>> I have sat and watched operators of some big stations hear a
>>>> partial call and grab the list for the band and look through it for
>>>> the 3 letters they got, until the find a call that fits. Then they
>>>> answer the station sending OOO. That is exactly the same thing as
>>>> deep search, and in fact is often less reliable in terms of
>>>> figuring out the correct call.
>>>>
>>>> You said: "There is no need to have a large, even four Yagi,
>>>> station to complete CW EME contacts. In the "Good Ole Dino Days",
>>>> I made many totally random QSOs with single Yagi stations, and they
>>>> with other well designed other single or two Yagi stations. PA0JMV
>>>> even completed 2M WAS, via CW, using a single and later a two Yagi
>>>> system."
>>>>
>>>> Yes it can be done, buy how many years did it take him? I worked
>>>> WAS on 2m CW with 4 yogis and it took me about 15 years (5 years
>>>> for the last state).
>>>> If I wanted to do it today I bet I could do it in a year (excepting
>>>> states with no activity). When conditions are excellent it is
>>>> sometimes easy to make CW contacts with a small station, but
>>>> waiting for those conditions takes a lot of the fun out of it.
>>>> Hours listening to white noise is not really what it is all about,
>>>> for me.
>>>>
>>>> Another factor is the noise levels we have today. Very lucky is
>>>> the EME station who can hear more noise from a 50 ohm resistor than
>>>> from his 2 meter antenna! I used to be able to do that all the
>>>> time, but in the past 10 years, almost never. Often the noise from
>>>> my antennas is 3 or even 6 dB above the resistor. Under those
>>>> conditions CW is useless, digital gets through.
>>>>
>>>> Finally, as I get older my hearing is not as sharp as it used to
>>>> be. In fact I wear hearing aids when I need to have conversations
>>>> - I can hear the voices well enough, but often cannot understand
>>>> what I am hearing. The hearing aids help some. CW is not so hard
>>>> to understand, but the tinnitus (ringing in my ears) often seems to
>>>> resonate with the pitch I am listening to. I operate CW every year
>>>> at the K2UYH contest station, on 432 and up, and lately we have
>>>> been getting some new younger operators - It is easy to tell that
>>>> they copy the weak ones better than I do. For a long time I was
>>>> the best of the gang, but no more.
>>>>
>>>> In summary Digital mode EME has put the fun back into it for me. I
>>>> am able to have an inexpensive station and make lots of contacts on
>>>> 2 meters. If CW was my only option I most likely would not be on
>>>> the air.
>>>>
>>>> Chuck I know I worked you numerous times back in the good old days
>>>> on CW when you were WA6MGZ. Unfortunately those days are gone.
>>>>
>>>> 73, Russ K2TXB
>>>>
>>>> -----Original Message-----
>>>> From: Chuck Smallhouse [mailto:w7cs at theriver.com]
>>>> Sent: Friday, August 15, 2014 8:18 PM
>>>> To: Russ K2TXB; 'Michael Barlow'
>>>> Cc: moon at moonbounce.info
>>>> Subject: Re: [Moon] The Swedish 4Th 432 & UP EME meeting CW
>>>>
>>>> Russ, Ron, Ed et All,
>>>>
>>>> Comparing building an EME station today by hams goaded by "Instant
>>>> Gratification" and difficult HOA restrictions, with those built a
>>>> couple of decades or so ago, by incentivized HB'ng hams, is most
>>>> certainly not the same. This generation feels that they have to
>>>> buy everything all ready for use, whether it's new or used.
>>>>
>>>> Antenna manufactures, such as M2 and most others, have increased
>>>> their prices on their kits (yes they are kits, as you have to put
>>>> them together and test them yourself) by at least five times from
>>>> what they were in the late '80's or '90's. This is not solely
>>>> because of the increased prices of labor, materials and
>>>> transportation, but also because of the sales and demand of those
>>>> that need it Now, Now, Now, Ready To Go !
>>>>
>>>> Most hams in NA and EU live within driving distances of
>>>> surplus/scrap or new metal dealers. An SUV with a roof rack is all
>>>> that's generally needed to bring the desired items home. There are
>>>> quite a few very good antenna
>>>> (Yagi) design sites on the Internet, and most give excellent
>>>> construction details, even using
>>>> different sizes of materials. The tools in an
>>>> average ham's workshop, are all that is required to build and
>>>> assemble them.
>>>> IMHO, the use of square aluminium tubing is much preferable,
>>>> than the use of round, for 'H' frames and Yagi booms, for obvious
>>>> reasons.
>>>>
>>>> It used to be most of the fun, to design, plan and to collect and
>>>> then build, over time, the items need to put together a successful operating
>>>> EME station. Granted some items (even used)
>>>> are now much more expensive, because of the demand's rise in cost
>>>> of new items. However prices some of you have quoted are way above
>>>> that I've seen in person, or even on the Internet.
>>>>
>>>> There is no need to have a large, even four Yagi, station to
>>>> complete CW EME contacts. In the "Good Ole Dino Days", I made
>>>> many totally random QSOs with single Yagi stations, and they with
>>>> other well designed other single or two Yagi stations. PA0JMV even
>>>> completed 2M WAS, via CW, using a single and later a two Yagi
>>>> system.
>>>>
>>>> To compare call sign recognition, via previous knowledge, to that
>>>> via "Deep Search" is not even
>>>> worth intellectual arguing. With CW, both
>>>> stations have to have complete audible copy of both call signs,
>>>> reports and usually 73's.
>>>>
>>>> Now I know that this is difficult for "No Code Extras", or even by
>>>> those that haven't used CW in years, but the operating speeds are
>>>> relatively quite slow, and most operators are very patient. With
>>>> practice, I maintain that a weak CW signal can be copied at very
>>>> near the strength of that of a digital one , which has to be copied
>>>> in a noisy (RF) computer and other noise
>>>> generating environment. Today's detection
>>>> processing, by receivers using SDR techniques, make this difference
>>>> even less !
>>>>
>>>> Yes, the "Dino's" build costs were/are considerably less than the
>>>> "Buy" costs of todays EME station, but Ron's deep satisfaction of
>>>> designing (and redesigning) and building it himself, is worth an
>>>> awful lot !
>>>>
>>>> I even had a gentleman's bet with Wayne Overbeck, N6NB, when VUCC
>>>> was first initiated, that I could accomplish that award in less
>>>> than one year, on 2M.
>>>> This was when my QTH was about the furthest west possible in NA,
>>>> and at least 80 of my needed Q's could not be easily made
>>>> terrestrially Ah Hah, but Wayne said, you will use an expensive
>>>> EME station. No I said, mine is mostly all HB, and cost
>>>> considerably less than a competitive HF DX chasing station .
>>>>
>>>> BTW, Wayne still owes me a Martini, for 2M VUCC # 13 .
>>>>
>>>> GL es 73,
>>>>
>>>> Chuck, W7CS ex WA6MGZ
>>>>
>>>>
>>>> t 12:31 PM 8/15/2014, Russ K2TXB wrote:
>>>>> Content-Type: multipart/alternative;
>>>>> boundary="----=_NextPart_000_05ED_01CFB89E.0A613500"
>>>>> Content-Language: en-us
>>>>>
>>>>> Ø I respectfully disagree with your suggestion that CW (dino)
>>>>> EME must be more expensive than digital operation. Some of us have
>>>>> assembled reasonably effective 2m and 70cm CW stations at what I
>>>>> suspect is a lower cost than anyone has done with digital Hello
>>>>> Ron. I do not understand why you think this. My 2 meter EME
>>>>> station consists of a used 25 foot aluminum tower (free), 2 KLM
>>>>> 16LBX antennas (bought new in 1983 when they first came out, so
>>>>> cheap by today’s standards), A Yaesu EL/AL rotator pair (G5500
>>>>> bought used for $250). Â I built the polarity rotation system
>>>>> entirely from junk box parts, using an old TV rotator. Also
>>>>> needed a 2 way splitter (bought used for $50), some aluminum
>>>>> tubing to make the supporting masts, and quite a bit of hand work
>>>>> (free as I did not charge myself). For the digital side, The
>>>>> software was free, The computer was free (cast off from work, but
>>>>> could have been bought for under $200), and I built my own
>>>>> computer to rig interface (for under $30 in radio shack parts plus
>>>>> junk box parts). I don’t remember what the antennas cost but I
>>>>> am guessing around $300 for the pair (maybe less). So, for the whole digital system I spent less than $650 dollars ($850 if I had to buy the computer).
>>>>> Contrast that to putting together a comparable 2 meter EME station
>>>>> capable of making a similar number of CW contacts. Here I would
>>>>> need at least four antennas (probably more). So the cheap
>>>>> aluminum tower is out. I would need an H frame, a much heavier
>>>>> duty (and separate) AZ and EL rotators, and a four way or multiple
>>>>> power splitters, more phasing lines, connectors…. The extra cost
>>>>> for all of that is more than the cost of my whole system. Â And
>>>>> that would not even include the ability to change polarity (I can
>>>>> not figure out a reasonable method of mechanically rotating
>>>>> polarity of Yagis on an H frame, and XPOL Yagis are much much more
>>>>> expensive to buy and to support.) All of the other parts of my
>>>>> station (receiver, transmitter, feed lines, preamps, amplifier,
>>>>> automatic rotator control system, connectors,
>>>>> etc.) are required for both systems and can be ignored. Also it
>>>>> is likely that most hams already have a computer in the shack so
>>>>> that can be left out of the digital cost too.
>>>>> I suppose that my setup is among the cheapest around, but it is
>>>>> still capable of generating more contacts in a year than I made in
>>>>> 15 years on CW with 4 of the same kind of Yagis.
>>>>> Maybe you want to reconsider?
>>>>> 73, Russ K2TXB
>>>>>
>>>>>
>>>>> On Aug 14, 2014, at 2:13 PM, Michael Barlow
>>>>> <<mailto:badl79 at yahoo.com>badl79 at yahoo.com> wrote:
>>>>> Hi Guy,
>>>>> I respectfully disagree with your suggestion that CW (dino) EME
>>>>> must be more expensive than digital operation. Some of us have
>>>>> assembled reasonably effective 2m and 70cm CW stations at what I
>>>>> suspect is a lower cost than anyone has done with digital.
>>>>> As for required space, an effective 70cm antenna system can be
>>>>> quite small. An HB9 (I regret to say that I am unable to remember
>>>>> his entire
>>>>> call) had an absolutely superb signal, some years ago, while using
>>>>> an antenna array that was erected on his apartment balcony. As I
>>>>> recall, his receive capability was a match for his ufb transmit signal.
>>>>> 73 de "a dino", Ron n4gjv
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>> Moon at moonbounce.info
>>>>> http://lists.moonbounce.info/listinfo/moon
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