and aerial that work's <<
To quote ''BUT he had not attached his outside antenna!! HI'' Good
stuff this vintage data, not like this modern new fangled Slow Morse
everyone keeps tapping on about ..... ))
Yes , I think the holy grail of large arrays and low s/n performance on
RX is reserved for those living in the middle of nowhere and
installations that are surrounded with salt water , either permanently
or on a 2 times in 24 hour rolling cycle !
After the gb100mgy and gb4fpr runs last week or so , the 600 ft delta
loop did a very good job on Rx , feeding the Apollo Rx via the Tx tuner
.....with very little background noise , oddly the 504 carrier was
virtually under the noise , so it looks like there is a big null out to
the west .... not the best place for it ...
1 mile in land at my qth , with a top loaded 40 ft vertical , nothing
but a wall of noise , holding the ra1778 S-meter at 60 to 80 dB in usb
60% deflection, the skanti R5003 shows sinpo 4 signal level in the same
configuration , Tx wise , totally different , 2 or 3 watts ros-mf-2
decoding in the Shetlands no problem .and that's in the day time over
the Pennines . wonderful..
73 -G..
--------------------------------------------------
From: "Alan Melia" <[email protected]>
Sent: Wednesday, May 02, 2012 12:23 AM
To: <[email protected]>
Subject: Re: LF: Basic LF understanding
You still need a receiver and aerial that work !!
:-))
Alan
----- Original Message -----
From: "Graham" <[email protected]>
To: <[email protected]>
Sent: Wednesday, May 02, 2012 12:11 AM
Subject: Re: LF: Basic LF understanding
Is there maybe something for receive newcomers?
Of course !!,
The New windows based , user friendly , Opera Beacon & QSO mode ,
simply
install , set the dial to 136/500 KHz usb , add any old aerial and
watch the local decodes of stations on the left side and other
monitors on the right side , while keeping an eye on the
PSK-Reporting
map for new Tx stations http://pskreporter.info/pskmapn.html,
No internet time locking , No high stability oscillators and No need
for guessing who you have decoded ! (unless its very good dx , then
its
more likely its Mr Noise playing tricks !) works with or without
internet connection.
The only real traditional CW data mode combining on-off keying
with
state of the art Digital Signal Processing , in fact on/off keying
has
not been so much fun since Jean-Antoine Nollet first shocked the
world
in 1746 , a hundred years or so before this new fangled Morse code
'adopted' the idea !
As one Op32 user reported after sending a 50 watt beacon ........
''Just got a report from Harry PA3BHT, who is at 174 km from me.
He had seen that I was going on OP32 beacon and put his Opera on OP32
mode.
BUT he had not attached his outside antenna!! HI.''
The report was:
20:45 136 PA0OCD de PA3BHT Op32 174 km -39 dB in DELFZYL with 50w + 6 m
Vert
+ T
G :))
--------------------------------------------------
From: "Stefan Schäfer" <[email protected]>
Sent: Tuesday, May 01, 2012 9:53 PM
To: <[email protected]>
Subject: LF: Basic LF understanding
> LF!
>
> Has someone a very good link to basic understanding about LF? I mean
> the
> LF amateur radio stuff, all which one has to learn when starting
> rx-wise
> in our hobby! Maybe some ideas and examples, a good compliation. Not to
> complex and focusing on 137 kHz amateur radio?
> For newcomers in the "LF-transmit-world" i recommend ON7YD's page
> http://www.strobbe.org/on7yd/136ant/
> Is there maybe something for receive newcomers?
>
> A collection of some links may help as well...
>
> Thanks in advance.
>
> 73, Stefan/DK7FC
>
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