-proof it ..I hope!) where I made the connections to form itinto a
mutiturn loop.
Best wishes
Alan G3NYK
- Original Message -
From: ewkeh...@aol.com
To: time-nuts@febo.com
Sent: Wednesday, October 21, 2009 1:53 PM
Subject: Re: [time-nuts] Adret 4101A, the DCF77 and a good antenna
- Original Message -
From: ewkeh...@aol.com
To: time-nuts@febo.com
Sent: Thursday, October 22, 2009 4:10 PM
Subject: Re: [time-nuts] Adret 4101A, the DCF77 and a good antenna
Alan, my problem is it has to look half way decent and be acceptable to
the
neighbors, one time I had to take down
balancing,
or transformer isolation.
Alan G3NYK
- Original Message -
From: Magnus Danielson mag...@rubidium.dyndns.org
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, October 21, 2009 1:30 AM
Subject: Re: [time-nuts] Adret 4101A, the DCF77
A. Ferra mafe...@gmx.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Tuesday, October 20, 2009 10:27 PM
Subject: [time-nuts] Adret 4101A, the DCF77 and a good antenna
Hey time-nuts people,
First of all, let me start by saying that I follow the time-nuts
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, October 21, 2009 1:30 AM
Subject: Re: [time-nuts] Adret 4101A, the DCF77 and a good antenna
Alan Melia wrote:
Marco, have you considered that HBG on 75.0kHz might be stronger with
you
from
Most of the LF receivers of this type need an active antenna.
10 mv injected is a huge signal compared to what you might receive perhaps
10 uv as a guess.
I have a fluke and a singer for 60 khz wwvb in the US and use a loopstick
and preamp using a mpf102 and follower transistor. Believe there are
Am Wednesday 21 October 2009 01:16:55 schrieb Alan Melia:
Marco, have you considered that HBG on 75.0kHz might be stronger with you
from Switzerland??. In a lab or other complex quite often with off-air
standards the problem is local noise. I have a friend in Porto who used to
be able to lock
- Original Message -
From: Florian Teply use...@teply.info
To: time-nuts@febo.com
Sent: Wednesday, October 21, 2009 6:05 PM
Subject: Re: [time-nuts] Adret 4101A, the DCF77 and a good antenna
Am Wednesday 21 October 2009 01:16:55 schrieb Alan Melia:
Marco, have you considered that HBG
- Original Message -
There is a good list of time signals on the web site of the BIPM:
http://www.bipm.org/jsp/en/TimeFtp.jsp?TypePub=scale#nohref
in the Time Signals in the Scales division of the FTP server of the
Time, Frequency and Gravimetry section. The most recent is dated 2008.
@febo.com
Sent: Wednesday, October 21, 2009 1:53 PM
Subject: Re: [time-nuts] Adret 4101A, the DCF77 and a good antenna
Alan,
I used a copper pipe because it is the easiest way to make a round loop.
I have also used PVC but it always ended up rectangular. If you have a
better idea please let me
Hey time-nuts people,
First of all, let me start by saying that I follow the time-nuts mailing
list for some time and it's a great source for trading experiences. Perhaps
you can help me on this one.
We have in our laboratory, in Portugal (near Lisbon), an Adret 4101A
Frequency Receiver
Marco A. Ferra wrote:
Do you have any experience on this equipment (we don't have the manual, just
a brochure with a few pages [1]), the DCF77 signal itself or an ideia for a
antenna that could be very sensitive to this signal?
If you want to buy it ready made :
In message a8e32c24b29949d7a964468af3722...@escaleno, Marco A. Ferra writes
:
Do you have any experience on this equipment (we don't have the manual, just
a brochure with a few pages [1]), the DCF77 signal itself or an ideia for a
antenna that could be very sensitive to this signal?
Check the
-
From: Marco A. Ferra mafe...@gmx.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Tuesday, October 20, 2009 10:27 PM
Subject: [time-nuts] Adret 4101A, the DCF77 and a good antenna
Hey time-nuts people,
First of all, let me start by saying that I follow
Alan Melia wrote:
Marco, have you considered that HBG on 75.0kHz might be stronger with you
from Switzerland??. In a lab or other complex quite often with off-air
standards the problem is local noise. I have a friend in Porto who used to
be able to lock to MSF when it was at Rugby a few years
Hi Marco,
That looks like a really nice receiver. It is a little numb as far as
sensitivity goes, but there are reasons for such. At those low frequencies
atmospheric noise will certainly be quite high. So, one way to to handle it is
to put the signal preamp out at the antenna, usually a
Good morning Marco
In the past I had best luck with a loop antenna using a copper tube (one
end insulated) using as many turns as I was able to run through it and tuning
it to frequency. One can also use a multi conductor cable and spice the
ends in such a way that it becomes a multi turn
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