Could be,but no,
just another band to play during daytime,
73
Victor
-----Oorspronkelijk bericht-----
Van: [email protected]
[mailto:[email protected]]Namens Stefan Schäfer
Verzonden: woensdag 6 februari 2013 17:51
Aan: [email protected]
Onderwerp: Re: LF: RE: Re: Testing WSPR-15 on 630m
Hi Victor,
That's not ugly at all :-) Looks like a lot of effort! 70 MHz, is that
the LO for a MF mixer?
73, Stefan
Am 05.02.2013 16:57, schrieb [email protected]:
> Hello Stefan,
>
> picture of a ugly 70MHz treansverter,lots of glue and solder but it works
> very well.
> Spurious sgnals more than 100 dB down,except harmonics,just 70db down.
>
> 73
>
> Victor
>
> -----Oorspronkelijk bericht-----
> Van: [email protected]
> [mailto:[email protected]]Namens Victor van Kooten
> Verzonden: dinsdag 5 februari 2013 8:41
> Aan: [email protected]
> Onderwerp: Re: LF: RE: Re: Testing WSPR-15 on 630m
>
>
> Hello Stefan,
>
> I don't know how sensitive wspr15 is for drift,maybe this is a cause
> for lost decodes.Maybe you can change the xtal osc for a tcxo or a
> ocxo,they are very cheap these days,ofcourse it depends on the freq. you
> use.
> Your construction isn't that ugly,This evening I will send you some
> pictures of my own experiments,
>
>
> 73,GL
>
> Victor
>
>
>>>> Stefan Schäfer<[email protected]> 04/02/2013
>>>>
> 23:26>>>
> Hi Victor,
>
> Thanks for the feedback. Yes i see i'm drifting. Not so fine. There
> were
> some missing decodes. Must have been due to the timing or maybe the
> drift?
>
> My TX converter is quite an ugly construction. It was grown from a very
>
> temporary arrangement of a few electronic parts. The drift may come
> from
> some nearby parts (The ICL7667 and a 78S05) which become warm during
> TXing and feed the heat to the xtal. I will investigate...
>
> 73, Stefan
>
> Am 04.02.2013 22:04, schrieb [email protected]:
>
>> Hi Stefan,
>> your signal on the waterfall
>> Victor
>>
>>
>
>
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>
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