How much importance should be given to this topic you ask? I respect the
fact that any audio topic these days can be very subjective and carries many
different opinions. But before you cast this topic off to the unimportant bin
consider this thought. I know several people who are holding
Hello,
I am one who usually sits back and watch things unfold and hope to learn from
this reflector without making to many statements.
Also I personally understand your concerns about any issues with the Flex5000.
But I must say, if you are holding out because of a few issues that not
You all keep talking like there is a problem with the radio. I DON'T
THINK SO. I've talked to a lot of them and they all sound in verying
degrees of good. Some people have taken the time to use sound boards to
feed the radio and $$$ mics and other use what ever they have straight
in the
Oh, I forgot to add that I started using Flex in the early days with
Serial number 25 and the first version of software on the SDR1000. In
ICOM terms I'm now running a PRO MCXXVIII, and all I've purchased is ONE
NEW RADIO that keeps getting better. Jerry
Sometime back I thinkI saw some mention that Flexdid not include a scan for
signal feature due to legal or type acceptance reasons.
I just started on 6 meters and thought it would be nice to have a feature where
it just seached the band for REAL signals.
Wondering how it would reject all the
Hi
I noted that all guys who use flex5000 have the same problems of TX audio
distortion , I did not hear a sample which worked correctly. Perhaps RFI,
perhaps ALC ? I use SDR1K home made and I do not have these problems. I hope
that the poor OM's who bought one flex5000 to have precisely a better
Maybe it's only the earlier F5K's that are having problems. In any case, I
echo Ken's comments. I continually get rave reviews on the quality of the
F5K's audio. I don't doubt for a moment that Jeff, K6JCA and others are
experiencing audio quality problems. Obviously, I can only speak from the
I have been told I had a strong signal
But most people do complain about it's quality
They always say it sounds like I'm sending the cw with my left foot!
-
Louisiana: We're Not ALL Drunk Cajun Wackos, But That's Our Tourism Campaign
Hi, Chris.
Only the earlier F5K's that are having problems.
Have no doubt and buy F5k. Good radio indeed.
P.S. Here RFI is mentionned as the main problem. But I have heard distortion
and with QRP...
--
Sergey RW3PS
Hi
I noted that all guys who use flex5000 have the same problems of TX
Mike,
In all FlexRadio models, AM is really an amplitude modulated 11 KHz carrier
that is transmitted in SSB mode on exactly the same hardware signal chain as
the SSB signals. In other words, AM is a SSB signal on both the 1000 and
5000. AM and SSB are both transmitted the same way from the
Sorry but we do not cover the 4m band.
Gerald
Gerald Youngblood, K5SDR
President
FlexRadio Systems
13091 Pond Springs Rd. #250
Austin, TX 78729
Phone: 512-535-4713
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Keith Ferguson
Sent: Wednesday, July
Quoting Gerald Youngblood [EMAIL PROTECTED], on Thu 10 Jul 2008
06:50:23 AM PDT:
Mike,
In all FlexRadio models, AM is really an amplitude modulated 11 KHz carrier
that is transmitted in SSB mode on exactly the same hardware signal chain as
the SSB signals. In other words, AM is a SSB
Dear All,
I would like to put my tuppence worth in.
Firstly, I would like to say that I thoroughly enjoy using the F5K, it is a
wonderful experience. However, there is a serious problem with at least some of
the units.
If it is only the earlier F5K’s as suggested by RW3PS, then that is
This is absolutely not true
I have #19 from the first production run and I do NOT have the audio distortion
issue.
-Tim
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sergey Abramov
Sent: Thursday, July 10, 2008 9:30 AM
To: Reflector
At 05:33 AM 7/10/2008, you wrote:
How much importance should be given to this topic you ask? I respect the
fact that any audio topic these days can be very subjective and carries many
different opinions. But before you cast this topic off to the
unimportant bin
consider this thought. I know
If you listen to AM in SAM mode you will be effectively listening in DSB
mode.
Gerald
Gerald Youngblood, K5SDR
President
FlexRadio Systems
13091 Pond Springs Rd. #250
Austin, TX 78729
Phone: 512-535-4713
-Original Message-
From: Jim Lux [mailto:[EMAIL PROTECTED]
Sent: Thursday, July
Scan may not be legal in PSDR but I don't see how you couldn't make a little
CAT program that would take you up the band in 48 or 92khz snapshots for
example and then when you hit the top of the band start over. The
panadapter/waterfall combo and maybe something like skimmer are pretty good
At 08:50 AM 7/10/2008, you wrote:
Mike,
In all FlexRadio models, AM is really an amplitude modulated 11 KHz carrier
that is transmitted in SSB mode on exactly the same hardware signal chain as
the SSB signals. In other words, AM is a SSB signal on both the 1000 and
5000. AM and SSB are both
Ditto from me, I have serial number 3.
Bob K5KDN
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Tim Ellison
Sent: Thursday, July 10, 2008 9:24 AM
To: Sergey Abramov; Reflector Flex-Radio
Subject: Re: [Flexradio] TX Audio Quality Help, please!
This is
Dear Flexers,
I will reiterate my statement from yesterday. There have been NO hardware
changes to the PA since serial number one.
Very early radios shipped in the August 2007 time frame went out with lower
bias settings on the drivers and PA. This was changed by Setptember 2007.
We worked
Could it be that the older HRFIO board has something to do with this ?
Not sure when the changeover between the 27 34 boards.
Possible rf issues with the older board ? Just guessing.
73's , Bruce
KL7JDR
Bruce W. Mills
P.O. Box 1500
31490 Echo Lake Road
Soldotna , Alaska
99669
I saw a similar discussion on the Kenwood site last year. The problem was
traced to corrosion on the in-line fuse holder between the power supply and
the rig.
If there are any problems on this wire like a tired fuse, corroded fuse
holder, under-sized wire, or bad soldering; the voltage in the
At 07:38 AM 7/10/2008, Gerald Youngblood wrote:
If you listen to AM in SAM mode you will be effectively listening in DSB
mode.
Gerald
The interesting question is whether, when listening to an AM signal, using a
SSB receiver, what it sounds like. (and assuming the SSB receiver has good
enough
At 08:52 AM 7/10/2008, Doug McCormack wrote:
I saw a similar discussion on the Kenwood site last year. The problem was
traced to corrosion on the in-line fuse holder between the power supply and
the rig.
If there are any problems on this wire like a tired fuse, corroded fuse
holder, under-sized
Doug,
I agree that it probably is power supply related.
In most of the comments, everyone has overlooked the fact that Jeff's radio
was sent back to Flex and thoroughly checked out, and the problem was not
found. However, nobody, including Flex, disputes the fact that there is a
problem when
This is absolutely not true
I agree this not truth.
I have simply said their own experience with this.
I have #19 from the first production run and I do NOT have the audio
distortion issue.
This three transceivers have a distortion and at present.
#0651-x
#3207-x
#4707-x
This
Gerald said
snip Klaus informed me this morning
that all distortion issues he has dealt with similar to Jeff's were traced
to RFI getting into the FireWire cable or the PC itself. He says that this
was confirmed at multiple locations both on dummy loads and antennas. He
indicated that
One other thing to do is use the SHIFT+CTRL+I to bring up the Information
dialog box and see what voltage is being shown during transmit. This is not as
accurate, but I will give you an indication of what might be happening.
I needed to adjust the output voltage on my Astron RS-35M up by about
Gerald,
Does Flex have any way to test for RF susceptibility? If not, you may
want to get a few more pieces of test equipment, because having a
repeatable method in the lab for testing and verifying these sorts of
problems can be invaluable. May I make a few suggestions?
- Jeff
Does anyone know if the tuner above will track and work with the 5000C?
Phil
Philip LaMarche
LaMarche Enterprises, Inc.
www.instantgourmetspices.com http://www.instantgourmetspices.com/
www.w9dvm.com http://www.w9dvm.com/
800-395-7795 pin 02
727-944-3226
FAX 727-937-8834
NASFT 30210
Some time ago I looked at power supply variation (using a scope), and I
didn't see anything abnormal when comparing my 1K to my 5K (there was
some small variation under load) , both of which run off of the same
supply (Astron RM-35). Of course, this doesn't let the supply out of
the woods,
For those who use external mic amplification equipment with your 5000,
what level do you set the Console's Mic Gain to?
You can reply directly to me, rather than the reflector.
Thanks,
- Jeff, k6jca
___
FlexRadio Systems Mailing List
It was usually during digital mode transmissions (50 watts, psk) and some phone
transmissions too (100 watts).
-Tim
-Original Message-
From: Jeff Anderson [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 10, 2008 3:00 PM
To: Tim Ellison
Cc: Ray, K9DUR; 'Doug McCormack';
I use an Astron RS-50M DC supply with my 5000A. With 100 watts tune carrier
into a dummy load the supply voltage drops from 13.7 to 13.3 DC Volts as
seen using the radio's cntrl-shift-I window. The Astron's Amp meter shows 7
amps under the 100 watt load and the Astron's Volt meter doesn't budge
Does anyone know, when using the built in voltage meter on the 5000A, where in
the DC power chain is it taking the reading, and how it is doing that function?
That may have some significance in what you see. But using an O-Scope right
where the DC power comes into the radio will tell all.
I don't know how the 5000 is affected by a small drop in Vcc, but the K3 3rd
order IMD degrades significantly with 1/2 volt drop in the cable.
Mike Schlamp [EMAIL PROTECTED] 7/10/2008 2:15 PM
Does anyone know, when using the built in voltage meter on the 5000A, where in
the DC power chain
Time to change the CPU and Mother Board. I have both a SRD 1000 and 5000. I
run a lot of stuff in the background for biz (CS4-Dreamweaver, etc) and use
4 monitors. I have been eyeing the 6600 CPU's for $189.00 from Tiger
Direct. I would love to hear from others if this is the way to go and a
This may sound nuts, but if the problem is on the power supply side, as far
as not being able to keep steady voltage during the large current draws, why
not take a tip from these nuts that run 6 gazillion watts of power in their
car audio systems: put a whopping 1 farad cap between the power
You'd think that two processor cores running side by side would surely be
faster than a single core right? And four cores working simultaneously would
certainly run circles around it? Well no, only if the application that you
are running is multithreaded and thus can take advantage of the extra
I recommend that all multi-core enthusiasts use this free utility
from Ed in Chicago: http://www.geocities.com/edgemeal_software/
It allows you to assign any application to any core and keeps it that way.
So if you run multiple applications, you can separate them and hope that
the Operating
At 02:56 PM 7/10/2008, you wrote:
I use an Astron RS-50M DC supply with my 5000A. With 100 watts tune carrier
into a dummy load the supply voltage drops from 13.7 to 13.3 DC Volts as
seen using the radio's cntrl-shift-I window. The Astron's Amp meter shows 7
amps under the 100 watt load and the
Also, with the 'New Architecture', I can guarantee that multi-core
processors will be well supported ;-)
-- John g0orx/n6lyt
Ken N9VV wrote:
I recommend that all multi-core enthusiasts use this free utility
from Ed in Chicago: http://www.geocities.com/edgemeal_software/
It allows you to
I have been sitting back watching the reflector discussion on K6JCA's audio
venture, and then the move into voltage, voltage loads etc and on and
on..
It's just amazing to see the President of Flex, Flex's lab techs, field
operators, Rob Sherwood, general operators, interested non
Hi Guys;
The only problem I see with this approach to eliminating sag form the
PSYou MUST now add a Variac to soft start the PS, hi hi
Regards GL, Darrell
At 06:19 PM 7/10/2008, [EMAIL PROTECTED] wrote:
This may sound nuts, but if the problem is on the power supply side, as far
as not
PowerSDR and DttSP are multithreaded, and have been since Day One.
73
Frank
AB2KT
On Thu, Jul 10, 2008 at 2:23 PM, [EMAIL PROTECTED] wrote:
You'd think that two processor cores running side by side would surely be
faster than a single core right? And four cores working simultaneously
would
I've been doing some further reading on the subject and I think my original
post is incorrect. The statement about 99% being written to run on one
processor is the most confusing, because it fails to allow for HyperThreaded
single core processors. I am not a programmer, and have waded out past
I built two machines recently, one for my ham radio work, which includes
connection to my Flex 5000, and one for photo and video editing (I take a
lot of pictures and videos of my granddaughter). In both machines I used
the Intel Core 2 Duo E8400 CPU. My photo and video machine runs Vista
This is typical of the quality of service Dudley delivers!
Ed, K5RJI
On Thu, Jul 10, 2008 at 1:06 AM, Jim R [EMAIL PROTECTED] wrote:
I received my RFIO upgrade board yesterday, and was not able to get it
installed until late in the evening. After installing it, the radio wouldn't
Amazing, isn't it? The only other Amateur Radio
products I've gotten this type of support with have
been my BuddiPole, and my Elecraft K2.
Kudos to FlexRadio Systems for this level of support!
73, Jim KQ6EA
--- Bill Winkis [EMAIL PROTECTED] wrote:
I have been sitting back watching the
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Gerald,
Yes, I understand the relationship between power, voltage, and impedance.
And I do not disagree that a small voltage drop can affect the radio during
transmit, even to the point of causing transmitted distortion. My question
regarding where the Vdc reading is being taken from and the
I've been a ham for a long time but just started on 6 meters.
We had a bunch of storms pass, not close but not that far either.
I can't say I ever experienced this on the HF bands.
I'd start to hear some noise on 6 meters, sort of like qrm from an nearby
stations fone transmission.
It would
Many long years ago in Champaign, IL, home of Channel 3 we were taught
one of the ways to detect a tornado was to watch Ch. 2 or 3 for signals
much like you describe. If the picture really got defined, head for the
shelters, your house is about to depart.
Haven't thought about that one for a
Quoting W5CUL [EMAIL PROTECTED], on Thu 10 Jul 2008 07:29:59 PM PDT:
Gerald,
Yes, I understand the relationship between power, voltage, and impedance.
And I do not disagree that a small voltage drop can affect the radio during
transmit, even to the point of causing transmitted distortion.
All the comments below add to the reason I bought an Astron RS35m and
moved my MFJ-4125 to powering my FM rig. The MFJ would drop as much as a
volt with the SDR-1000 under full load. Transmit was a disaster. The
RS35M will drop from 14.2 to 13.8 under full load (measured with DVM at
SDR1000
thats probably wire loss, not your power supply... it needs bigger cables...
Measure voltage at the power supply for a true reading...
Carl Vangsness wrote:
The
RS35M will drop from 14.2 to 13.8 under full load (measured with DVM at
SDR1000 power terminals). I had to open it up to run
My second set of measurements was at the power supply itself. The third set
is right where the OEM cable/plug meets the radio.
Thank you,
Mike
W5CUL
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ray J
Sent: Thursday, July 10, 2008 10:33 PM
To:
Jim,
I may have to defer that test for someone else to try tomorrow. Gaining
access to the adjustable pot within the RS35M calls for opening the unit up
(I looked all over the case for access to the pot), and unfortunately I do
not own a variac. Opening the case is not something that I want to
Hi all
I have to put my two cents in. The best way to check for distortion is
to
use a 2 tone test signal. If the power supply is truly giving problems
there will be a noticeable flattoping of the output two tone waveform. If
it is clean the problem is elsewhere. This wave form is
W5CUL wrote:
snip Below are the measurements:
Idle: 13.8
5W: 13.7
10W: 13.6
20W: 13.6
50W: 13.5
75W: 13.5
100W: 13.4
The above measurements were taken using the built in metering system
(CTRL-SHIFT-I), using the Tune function, output power monitored and adjusted
using an on off
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