Xprotolab Specs

[WB4JFI]

Make sure you try them out before buying a truckload!!  They are small.

Another interesting device to attract others is the Atmel AVR Butterfly.  At
under $21 at Digikey, it makes a cool geeky nametag, etc.  It has a
100-segment LCD display (six digits), a joystick, and some precanned
software.  You can enter your name (or call), play some cruddy sounds, and
other things.  I've seen hams create SWR meters, Si570 oscillator
controllers, keyers, and other things with them.  And, it DOES have a RTC
built in, to display the time.  It has a temp sensor, and you can add a
light sensor.  It even has the nametag pin-thingie already attached!  Lots
of potential for $20.
Terry


-----Original Message-----
From: tacos-bounces+wb4jfi=amrad.org at rf.org
[mailto:tacos-bounces+wb4jfi=amrad.org at rf.org] On Behalf Of Brian Hawes
Sent: Monday, January 24, 2011 1:52 AM
To: Richard O'Neill; Tacos AMRAD
Subject: RE: Xprotolab Specs

Perhaps, if we can get the mouldings done in time, AMRAD should buy a
truckload and sell Oscilloscope watches
at Hamvention? O.K. they don't tell time, but with all those other functions
who would notice.
Not so sure about the Crystal set community: they do contain nasty active
devices.

Brian

________________________________________
From: tacos-bounces+hawes=herald.ox.ac.uk at rf.org
[tacos-bounces+hawes=herald.ox.ac.uk at rf.org] On Behalf Of Richard O'Neill
[richardoneill at earthlink.net]
Sent: 24 January 2011 00:18
To: Tacos AMRAD
Subject: Re: Xprotolab Specs

  Just wait until all those crystal set loonies out there get wind of
these cute little visual aids. I'll hold off posting about them until I
see how one performs in my DX set. I get about 10 millivolts input on my
O-scope from a barely readable signal.

Richard


On 1/23/2011 4:04 PM, Brian Hawes wrote:
> I noticed that in the space of two days, their stock went down from 16 to
5. They are now out of stock
> until the end of the Month.
> Is that all down to AMRAD?
> I think I am going to need more of these!
>
> Brian Hawes
> _______________________________________
> From: tacos-bounces+hawes=herald.ox.ac.uk at rf.org
[tacos-bounces+hawes=herald.ox.ac.uk at rf.org] On Behalf Of Richard O'Neill
[richardoneill at earthlink.net]
> Sent: 23 January 2011 17:01
> To: Tacos AMRAD
> Subject: Xprotolab Specs
>
>    I asked the company about input levels and received this info.
>
>    I'm thinking of adding one to my DX crystal set, a narrow band
> Panadapter - of sorts.
> It might be useful for detecting low level audio signals.
>
>
----------------------------------------------------------------------------
----------------
>
> The input has 7 gain settings, the screen has 4 divisions:
>
> 78.125 mV/div   ==>   312.5 mV   max signal
> 0.15625 V/div   ==>   625 mV     max signal
> 0.3125 V/div    ==>   1.25 V     max signal
> 0.625 V/div     ==>   2.5 V      max signal
> 1.25 V/div      ==>   5 V                max signal
> 2.5 V/div       ==>   10 V       max signal
> 5 V/div         ==>   20 V       max signal
>
> The offset position can be adjusted up and down, for example, if you have
a
> signal that swings from 0 to 2.5V, you would set the position at the
bottom
> of the screen and set the 0.625V/div gain setting. If the signal swings
from
> -1.25V to +1.25V, you would set the position at the center of the screen.
>
> The input impedance is 1M ohm.
>
> Regards,
> Gabriel
>
>
> _______________________________________________
> Tacos mailing list
> Tacos at rf.org
> https://rf.org/mailman/listinfo/tacos
>

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