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Joe, much brighter here since about 0:30! 73,
Markus
Sent: Sunday, January 12, 2014 1:32 AM
Subject: Re: LF: Hartmut's Grabber -- QRP TA
Joe,
can't really say I'm seeing much here so far.
Not even in 438 µHz, except for a couple of dim pixels in a row around 21 UT.
Hartmut's grabber is doing much better at 11 mHz!
Best 73,
Markus (DF6NM)
Sent: Saturday, January 11, 2014 8:33 PM
Subject: Re: LF: Hartmut's Grabber -- QRP TA
Hi
Markus,
Carrier on since 1920 UTC. 5 watts. While looking at the
messy breadboard
and trying to draw the schematic, I decided that it would be
quicker to just
run the Decca using the power supply for the class E amp at
reduced
voltage.
73 & GL
Joe VO1NA
On Fri, 10 Jan 2014,
Markus Vester wrote:
> Yes Joe, 100% duty cycle would be ideal. But
occasional CW or QRSS id's won't hurt either, as long as phase is being
preserved.
>
> 73, Markus
>
>
> From: [email protected]
> Sent: Friday, January 10,
2014 8:21 PM
> To: [email protected]
>
Subject: Re: LF: Hartmut's Grabber -- QRP TA
>
>
> Hi
Markus,
>
> That is most interesting. I remember that
occasion when TX was on later
> than usual. It will take a bit of
tinkering to get the phase coherent exciter
> to the class E TX, but this
is long overdue anyway. Would you like
> a continuous QRP carrier
without any keying?
>
> Best Regards
> Joe
VO1NA
>
> On Fri, 10 Jan 2014, Markus Vester
wrote:
>
>> Joe,
>>
>> when you were sending CW
a couple of days ago, the coherent carrier was detectable in my 438 uHz
spectrogram in broad daylight, until 12 UT! So I'm wondering how a low power
straight carrier would fare during night and day?
>>
>> Best
73,
>> Markus
>>
>>
>>
>> From: [email protected]
>> Sent: Friday, January
10, 2014 7:44 PM
>> To: [email protected]
>>
Subject: Re: LF: Hartmut's Grabber -- QRP TA
>>
>>
>>
Hi Hartmut,
>>
>> Yes, DCF39 must be a real pest as it is so
close geographically and
>> in frequency. You seem to be dealing with
it very effectively.
>> Thank-you for running the
grabber.
>>
>> It's a pest over here too, but sometimes useful
to check the RX system.
>>
>> The TX will be on again tonight.
In keeping with the spirit of energy
>> conservation being requested by
our power company, the TX will run
>> at <5 watts tonight to the
100m wire. I hope to watch for the signals
>> on your
grabber.
>>
>> Cheers
>> Joe
VO1NA
>>
>> On Fri, 10 Jan 2014, Hartmut Wolff
wrote:
>>
>>> Hello Joe,
>>>
>>>
thank you for your kind words!
>>>
>>> Still struggling
here with my local Pest DCF39. Between 03:15 and 04:40 UTC
>>> DCF39
was sending a higher pulse frequence. That is the reason of the
higher
>>> noise level at that time and poorer reception of your
beacon.
>>>
>>> Thank you for your
signal!
>>>
>>> 73
>>>
Hartmut
>>>
>>>
>>> Am 2014-01-10 13:26,
schrieb [email protected]:
>>>>
>>>>
Hello Hartmut and Group,
>>>>
>>>> Even with only
65 watts from the TX, strong QRSS100 signals were seen on
>>>>
Hartmut's grabber at 137.777 so the power was cut to <10 watts
by
>>>> reducing the drain voltage of the class E amp to 12 V.
The grabber
>>>> traces faded substantially, but rebounded to
clearly readable around
>>>> 0630
utc.
>>>>
>>>> Congrats on your impressive RX
setup, Martmut!
>>>>
>>>> 73
>>>>
Joe
VO1NA
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>
>
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