[Lowfer] VLF Alphas

Thu Nov 20 11:27:55 EST 2014

Thanks Mike.....I'll check out V2.78....Tom N8TL

On 11/20/2014 09:26 AM, N8OOU wrote:
> Tom;
>
> I run Slackware 14.0 Linux here along with Wine V1.6 and it lets 
> Spectrum Lab V2.78 run without any problems. Those are at least 1 
> release behind current, maybe 2.  I'd give it a try. I don't know how 
> that compares to Mint 17.
>
>
> 73   de   N8OOU - Mike Meek
>
> On 11/20/2014 07:46 AM, n8tl wrote:
>> Doug:
>>
>> Looks good!  I wonder if you can do the same thing with ARGO or
>> SPECTRAN?  Is anyone using
>> these two for VLF work??  I ask this question since my computer
>> operating system is Linux Mint 17, and, both of these programs run well
>> on Linux.  Spectrum Lab to my knowledge will not perform on
>> Linux.  I can switch in a HDD to WINDOZ, but would rather not if I can
>> get away with it.
>>
>> I will be using Jay's low noise preamp in front of the Line In port,
>> but, I need to finish it first.
>>
>> I'll keep you posted, 73,
>>
>> Tom N8TL
>>
>>
>>
>> On 11/19/2014 03:58 PM, Douglas D. Williams wrote:
>>> Tom, Spectrum Lab is WAY more advanced than my skill set (or 
>>> intelligence
>>> level). ;-)
>>>
>>> I just use the Quick Settings to get to "VLF Radio with station
>>> markers on
>>> frequency scale".
>>>
>>> Here is example of what it looks like at my QTH. The solid vertical 
>>> lines
>>> are mostly (all?) military MSK stations for submarine comms or time
>>> standards.
>>>
>>> https://dl.dropboxusercontent.com/u/33457409/z1203%20ungrounded.JPG
>>>
>>> D.
>>>
>>> On Wed, Nov 19, 2014 at 3:54 PM, n8tl <n8tl at woh.rr.com> wrote:
>>>
>>>> Doug:
>>>>
>>>> The card will sample at 96 Khz.  I also have an EMU-0202 external card
>>>> which will do 192 Khz.
>>>>
>>>> Tom
>>>>
>>>>
>>>>
>>>> On 11/19/2014 09:41 AM, Douglas D. Williams wrote:
>>>>
>>>>> Forgot to mention the maximum frequency you will be able to see 
>>>>> will be
>>>>> half the sampling rate of your sound card. So if you have a 48 kHz
>>>>> sound
>>>>> card, you will be able to see up to 24 kHz on Spectrum Lab's display.
>>>>>
>>>>> D.
>>>>>
>>>>> On Wed, Nov 19, 2014 at 9:38 AM, Douglas D. Williams 
>>>>> <kb4oer at gmail.com>
>>>>> wrote:
>>>>>
>>>>>   Tom, a cheap VLF receiver can be your computer's sound card. If
>>>>> you have
>>>>>> an e-probe that is sensitive at VLF, you can often connect the
>>>>>> receiver
>>>>>> output of your DC power coupler directly to the mic or line in on
>>>>>> your PC
>>>>>> and view the output using Spectrum Lab software (free). Spectrum
>>>>>> Lab has
>>>>>> some included settings what have common VLF stations already 
>>>>>> marked on
>>>>>> the
>>>>>> spectrum display.
>>>>>>
>>>>>> -Doug
>>>>>>
>>>>>> On Wed, Nov 19, 2014 at 9:32 AM, Garry Hess <k3siw at sbcglobal.net>
>>>>>> wrote:
>>>>>>
>>>>>>   Tom, the VLF captures were made with a rooftop eprobe and sdr-iq
>>>>>>> receiver.
>>>>>>>
>>>>>>> Re: lowfer EAR: J.B., it's coming in well here too but MLS isn't 
>>>>>>> even
>>>>>>> detectable despite being a bit closer.
>>>>>>> -- 
>>>>>>> 73, Garry, K3SIW, EN52ta, Elgin, IL
>>>>>>>
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