Jeff,
Edirol offers also the UA-1EX USB soundcard. I bought one and I made my
first phone and cw QSOs with it last weekend. I am going to send it today
for evaluation to Klaus Lohmann, a distinguished member of the German
SDR1000 group and official representative of Flex-Radio. Edirol claims
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Willi,
Thanks for remembering! Linear power supply/voltage regulator is
always a good solution for low noise applications. Unfortunately,
sometimes we cannot use them.
Actually, now I'm using the original chopper with better filtering.
You may add 47uF capacitor parallel to C7 and double the
Jim Lux wrote:
At 07:48 PM 9/24/2006, Larry Loen wrote:
David Ackrill wrote:
Guy Olinger, K2AV wrote:
I've thought long and hard about this note.
I believe the main issue here is simple -- while the software has
improved by leaps and bounds, we have only the most modest changes to
the
I have noticed this being discussed as an issue several times. It appears
that not everyone is affected by the meandering signals. Some are worse than
others or not even noticed. Is this a known issue or are they just isolated
occurrences?
73 Ross K9COX
Larry,
it sounds like what you are looking for is what is currently developing at
HPSDR (see www.hpsdr.org ). A ham dedicated ADC/DAC (sound card) board
and controller board are currently being prototyped. Last week a replacement
board for the SDR-1000 PIO card was suggested with
I think it is more prevalent than not. The noise is real easy to find
when the rig hasn't warmed up and you have it on a dummy load. In the
Panadapter you can watch the little hump wander you the band until the
radio starts coming to temperature and then back down. As the radio
warms up, its
I have it in my SDR-1000 (June/2005 purchase)
Very embarrassing on a demo and irritating during use.
Mike - AA8K
Ross Stenberg wrote:
I have noticed this being discussed as an issue several times. It appears
that not everyone is affected by the meandering signals. Some are worse than
Hi Tim and Ross,
Let me copy what I answered to Cris and Willi few hours ago:
--
Willi,
Thanks for remembering! Linear power supply/voltage regulator is
always a good solution for low noise applications. Unfortunately,
sometimes we cannot use them.
Actually, now I'm using the original chopper
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Thank you Tim and Ahti, I read your posts with much interest and I am
actually fishing for official responses :^)
With tongue in cheek I would hope that a company whom is committed to
becoming the best radio company in the world would not take the typical
Yaesu position with respect to hardware
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Larry, Jim, Joe,
Actually, in principle I agree all you said. Nevertheless, let me
express my opinion about the HPSDR project. It is now really overly
complicated and space hungry concept, especially due to that ATLAS
motherboard. However, at this phase of DEVELOPMENT this kind of
solution makes
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Some of the problems with connectors made of inexpensive (common) materials
are nearly unavoidable. I have experienced problems with many household
items such as remote controls and other such battery operated devices which
have been eliminated with Deoxit type products applied to the terminals.
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Hi Gerald,
I don't think Jon's problem is one of TX Image
Rejection. We nulled it down at least 70 dB using the
procedure in the manual. But we're still seeing
grunge on the opposite sideband. If I listen to that
sideband on another receiver, it doesn't sound like a
clear voice (as I would
Hi,
John Eckert K2OX started this thread describing how he replaced the DC1 with
a linear. Following were several posts requestiong more info from John on
the replacement part he used. I don't think I read a response. Did I miss it
or has anyone received more details on this?
Just very
On 9/25/06, Joe - AB1DO [EMAIL PROTECTED] wrote:
Hi,
John Eckert K2OX started this thread describing how he replaced the DC1 with
a linear. Following were several posts requestiong more info from John on
the replacement part he used. I don't think I read a response. Did I miss it
or has
The lower values measured on the FireBox are likely due to the clipping
protections that we added to the software to prevent damage to the radio due
to the higher voltages of the FireBox. We have measured numerous FireBoxes
and have concluded the following:
1. If a FireBox puts out any kind of
think I'm attacking you.
Best ragards to you Chris and to all on this forum that contribute to it's
success.
Hulen Smith
K5HCS
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I use a Stor model that cost around $20 at Fry's Electronics. I don't
have the model number off-hand, but for the right amount of money, I could
be coerced into shutting my computer down and pulling the card out to check.
:)
Eric Wachsmann
FlexRadio Systems
-Original Message-
From:
Hi guys, this may or may not be a solution, and I know it has been beaten to
death...but I too experienced this same thing over the weekend while I was
helping a fellow with his SDR-1000.
He brought his system over and we got it all set up. Going back and forth
between our two systems and
This will be fixed in SVN 691. Thanks for reporting this.
Eric Wachsmann
FlexRadio Systems
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
radio.biz] On Behalf Of David Gardner
Sent: Sunday, September 24, 2006 7:35 PM
To: FlexRadio@flex-radio.biz
Subject:
Larry,
[snip]
Thought this might interest you,
73 de Joe - AB1DO
It does indeed. I subscribed to the reflector for a while, but gave up
because I'm just not a solder jockey (I went so far as to buy the
backplane, but so far, sans parts on my end).
We'll see about the enclosure part of it.
Hi Everyone:
This proposal represents a very slippery slope. Let's try studio grade
gold plated cables first, we already have the sound card. We can do this
today. Our music industry has no problem with good quality cables.
If gold cables really did it, I wouldn't have said anything.
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Joe - AB1DO wrote:
Hi,
John Eckert K2OX started this thread describing how he replaced the DC1 with
a linear. Following were several posts requestiong more info from John on
the replacement part he used. I don't think I read a response. Did I miss it
or has anyone received more details
Hi Mike,
Thanks for the comment.
Yes, we also jiggled twisted the 3.5 mm plugs - the image rejection
settings are *very* sensitive to the connection between these jacks and
plugs, and we observed that if you even looked at them cross-eyed, the null
settings would change.
Although I love my
Jeff Anderson wrote:
Hi Mike,
Thanks for the comment.
Yes, we also jiggled twisted the 3.5 mm plugs - the image rejection
settings are *very* sensitive to the connection between these jacks and
plugs, and we observed that if you even looked at them cross-eyed, the null
settings would
At 05:53 AM 9/25/2006, Larry Loen wrote:
Jim Lux wrote:
At 07:48 PM 9/24/2006, Larry Loen wrote:
David Ackrill wrote:
Guy Olinger, K2AV wrote:
I've thought long and hard about this note.
I would support this.. put a Mini-ITX mobo in the package with the
radio and give it an ethernet
At 09:33 AM 9/25/2006, Mike Naruta wrote:
Homebrew electronics in a carry-on bag?
I've carried all manner of odd looking electronics on, and I have a
beard and ponytail, and look somewhat suspicious. No searches yet
(except the time I didn't take my shoes off).
Jim, W6RMK
DeoxIT! Mike is someone that I trust due to his technical prowess. For
whatever reason, the very small contact resistance and the few microvolts
developed across it and the rectification process causes problems with these
interconnects.
-Original Message-
From: [EMAIL PROTECTED]
DeoxIT Gold works wonders on 3.5mm plugs. I use it on 1/4 and RCA phonos
as well. Radio Shack was practically giving it away in a sale they had a
couple months ago. http://www.caig.com/ You only need a very, very small
amount. It is a techs secrete weapon. This stuff has been around
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Gerald Capodieci wrote:
I strongly suggest we get the software be settled before the hardware
is touched.
IMHO, no, if Flex wants to go in a direction anything like this, the
software team needs to understand exactly what this is going to be as
soon as possible.
If it is as I suggest it,
For those folks not set up to solder surface mount, there are people on the
list that will solder up boards for people (and test them). I for one will
if you include a self addressed and postage paid mailer. So don't let the
fact that you don't have the equipment or time or do not want to invest
For those folks not set up to solder surface mount, there are people on the
list that will solder up boards for people (and test them). I for one will
if you include a self addressed and postage paid mailer. So don't let the
fact that you don't have the equipment or time or do not want to invest
- W5WRL
ARRL WTX Section Manager
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who was
playing a harmonic and singing ohm on the range.
Bill Lawless - W5WRL
ARRL WTX Section Manager
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a harmonic and singing ohm on the range.
Bill Lawless - W5WRL
ARRL WTX Section Manager
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with built in ATU.
73's
Serge
VA3SB
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with 512 MB and a Delta 44
sound card. SDR1K is a 100 W unit with built in ATU.
73's
Serge
VA3SB
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