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Re: LF: OP32 136K TA Opportunity tonight

To: [email protected]
Subject: Re: LF: OP32 136K TA Opportunity tonight
From: [email protected]
Date: Thu, 4 Apr 2013 07:48:56 -0230 (NDT)
In-reply-to: <71484F02020B46DAA1A725E3AA91E9B3@AGB>
References: <38542044BB304001A4F63CD668D61293@AGB> <[email protected]> <F453C91C35CC4809B0744B03A9ED08CE@AGB> <[email protected]> <71484F02020B46DAA1A725E3AA91E9B3@AGB>
Reply-to: [email protected]
Sender: [email protected]

Hello Graham and others on the group.

No Opera decodes have been received here for the past 2 nights, unfortunately.

The noise starts at about 6:45 daylight savings time and ends
12 hours later. Before the clocks advanced, it started 5:45.
It sounds like  very strong 60 Hz buzz with changing harmonic content
that presents in bands about 40 kHz wide every 100-200 kiHz.
It is very strong near the power lines about 400m from the shack.


The discussion on 4mm litz by Markus has been most interesting.
I several 25 metre lengths and by patiently winding three of them
into flat pies and stacking them about 1 cm apart, managed to get
about 2 mH.  The idea of pies came from G3NYK and before getting
distracted, I attempted to measure the Q using a M0BMU procedure.

I hope to get back to TX on 137 kHz soon and thank all those who
operate the grabbers which are very helpful for monitoring.

Thanks also to Markus for his strong Op sig and those others
who tried the past few nights.

73
Joe VO1NA

On Tue, 2 Apr 2013, Graham wrote:

Yes  ,  with  3  and  6  dB over the  limit as  well

Pity on the noise , I'm sure the other station's would not of been that far behind , is it wide band or pulsed ?

73 -G,

--------------------------------------------------
From: <[email protected]>
Sent: Tuesday, April 02, 2013 9:00 PM
To: <[email protected]>
Subject: Re: LF: OP32 136K TA Opportunity tonight

HI Graham,

It was good to see Markus callsign on the screen.  The RX is running again
tonight and my sentiments concerning the mains problem have been clearly voiced to those concerned!

73
Joe

On Tue, 2 Apr 2013, Graham wrote:

Thanks'  for  that  Joe,

Hopefully a few more nights before the summer sets in !, pity about the mains noise , seems to be a problem that's becoming all to wide spread these days ..

73-Graham


--------------------------------------------------
From: <[email protected]>
Sent: Tuesday, April 02, 2013 2:16 PM
To: <[email protected]>
Subject: Re: LF: OP32 136K TA Opportunity tonight

Dear Group,

Despite very high mains noise levels there were 2 Op32 receptions
of DF6NM at 0000 and 0449 at -37 and -35 dB respectively.

73
Joe VO1NA

On Mon, 1 Apr 2013, Graham wrote:

OP32 136K TA Opportunity tonight

Joe  VO1NA  will  be  monitoring   136.00 K tonight  for  OP32

Good  luck all

73-Graham

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