Brett,
All I can say is you must have the display really messed up.. I would
suggest a database reset to get back to the defaults. Start with 96K
or 48 K sample rate and then go to 4X in the panadapter, change the
panadapter to "AVG", and then go to display tab of Setup and increase
the "Main Display FPS" (Frames per Sec) and if that doesn't convince
you then, ...
The Icom display does not even show the signal on the correct sideband,
and very poor resolution.
73,
Dudley
WA5QPZ
Brett Gazdzinski wrote:
No I am not kidding.
The Icom had a smaller display but showed more information it seemed.
Maybe something is not right with my setup, as I could not begin to
tell the bandwidth of an AM signal. It shows a sharp spike (carrier)
and very little modulation.
The waterfall display seems ok.
SSB is quite clear.
I have had other sdr's and spectrum analyzers and think as you change
the amplitude scale the signal should reflect it. (like it does on
spectrum analyzers).
If you change from 1db per division, to 10 db per division, the signal
should not stay the same size.....
What is the point of being able to adjust it?
Brett
----- Original Message ----- From: "Dudley Hurry" <jhu...@austin.rr.com>
To: "Brett Gazdzinski" <brett.gazdzin...@verizon.net>
Cc: "Flex-Radio E-Mail Reflector" <flexradio@flex-radio.biz>
Sent: Thursday, October 01, 2009 4:18 PM
Subject: Re: [Flexradio] Various things...
Brett,
You have to be kidding.. Right? I can view a AM signal, even tell
the audio response on each sideband, exactly if I move the cursor
over the signal and read the frequency response in the lower left of
the panadapter.
You can monitor your AM signal in the Flex 5000 with the RX2 option,
view it in the lower panadapter.
I will tell you that the panadapter does take a lot of CPU to
display, so if you are having to slow the display refresh down, this
will cause the display to be less reactive.
73,
Dudley
WA5QPZ
Brett Gazdzinski wrote:
Well, I have put the 5000a through its paces, and have some questions.
The panadaptor and scope displays seem very poor, I am used to being
able to see signals much more pronounced, I have adjusted the scale
and other options with no improvement.
Its hard to see (on the panadaptor) how wide an AM signal is, the
scope display does not show the carrier with modulation, and another
odd thing, when an AM signal stops talking, the noise level goes up,
unlike a normal AM receiver where the carrier quiets the receiver
even with no speech.
I can adjust the agc and improve things but it seems to need
adjustment for various signal strengths, where a normal receiver
handles weak and strong signals without any adjustemt needed....
I spent a lot of time compairing the homebrew receiver to the flex,
and the homebrew seems much better in most respects.
I am a little disapointed in the displays on the flex, the
resolution seems very poor, or is there something I am overlooking?
Also, there is no way I can monitor my outgoing audio, because its
so delayed, even if I make the buffers as small as is allowed. That
is partly a slow PC I guess...
Brett
N2DTS
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