On AM, the scope is useless as it only shows the audio waveform.
In the shack, its handy to have an Oscope to look at the transmitted
waveform (to make sure the modulation looks good) and the received waveform
to see what the other peoples modulation looks like.
Lots of AM operators use homebrew (me) radios, or vintage radios, and like
to check things out to make sure things are set right.
On receive and transmit, we want to see the modulated carrier, the audio
waveform is useless.
On both TX and RX, the scope shows nothing that is useful.
On RX, it shows no carrier, on TX it shows the carrier but not the negative
modulation...
Also, there is no IF output to hook a scope up to.
I hear a LOT of flex radios on AM, they sound very good and have lots of
nice options, but have 2 major bugs, the scope and the auto notch filter
which 'seems' to notch out the carrier, not the interference.
I am not sure if its set to notch out the strongest steady signal (which is
the carrier on AM) or if something else is going on.
The Icom 756 pro 3 I had worked great in that respect.
Brett
----- Original Message -----
From: "Tim Ellison" <telli...@itsco.com>
To: "Burt" <k1...@yahoo.com>; "Neal Campbell" <nealk...@gmail.com>; "David
McKenzie" <k1...@vhfwiki.com>
Cc: <flexradio@flex-radio.biz>
Sent: Saturday, February 13, 2010 9:28 PM
Subject: Re: [Flexradio] Is this computer sufficent?
"o-scope, not the one on the Flex software which I wonder what use it has."
To be able to see modulated signals in the time domain.
-Tim
-----Original Message-----
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Burt
Sent: Saturday, February 13, 2010 9:10 PM
To: Neal Campbell; David McKenzie
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Is this computer sufficent?
I was looking for a station monitor not a computer monitor, generally
includes a o-scope, not the one on the Flex software which I wonder what use
it has
--- On Sat, 2/13/10, David McKenzie <k1...@vhfwiki.com> wrote:
From: David McKenzie <k1...@vhfwiki.com>
Subject: Re: [Flexradio] Is this computer sufficent?
To: "Neal Campbell" <nealk...@gmail.com>
Cc: "Burt" <k1...@yahoo.com>, flexradio@flex-radio.biz
Date: Saturday, February 13, 2010, 6:16 PM I'd suggest an inexpensive
22"
(Acer makes a popular model) from Newegg, they generally sell for
under $150. As for that PC, those specs were worth $240 two years ago.
Makes me think of the people who try to sell their old computers on
craigslist: "Used Dell Pentium III, 256mb ram, paid $2000 selling for
$1000!"
If you are looking to pinch pennies you can build something more than
adequate for under $300.
On Sat, Feb 13, 2010 at 3:49 PM,
Neal Campbell <nealk...@gmail.com>
wrote:
I didn't answer the question on
monitors.
My option is that the Hanns G monitors, especially this one
http://www.newegg.com/Product/Product.aspx?Item=N82E16824254043
a 28" bright
screen that is perfect for us guys who need a little larger
type font to
comfortably read (instead of the 1900x1200 stuff I leave nose-tracks
on the
monitor screen reading). For $320, you get a 28"
monitor that is 1600 x 1200
so I can sit more than 2 feet away from the screen and comfortably
read
everything!
73
Neal Campbell
Abroham Neal Software
www.abrohamnealsoftware.com
(540) 645 5394 NEW PHONE NUMBER
Amateur Radio: K3NC
Blog: http://www.abrohamnealsoftware.com/blog/
DXBase bug reports: email to ca...@dxbase.fogbugz.com
Abroham Neal forums: http:/www.abrohamnealsoftware.com/community/
On Sat, Feb 13, 2010 at 9:46 AM, Burt <k1...@yahoo.com>
wrote:
>
> 1 eMachines
EL1331G-01w Athlon 2850e 1.8GHz, 2GB, 320GB, DL DVD±RW, Windows
> 7 Home Prem
>
> Available for $240
>
> Also I am looking for a station monitor to monitor
modulation on a scope
> for AM, suggestions?
>
>
>
>
> _______________________________________________
> FlexRadio Systems Mailing List
> FlexRadio@flex-radio.biz
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> Knowledge Base: http://kc.flex-radio.com/
Homepage:
> http://www.flex-radio.com/
>
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