Dale,
What is the revision level of the TRX board in the HW menu of the setup menus?
73,
Dudley
WA5QPZ
Sent from my iPhone
> On May 22, 2014, at 6:42 PM, w...@reagan.com wrote:
>
> Bought a 3000 the sn# is 2009-0147, I would assume unless it had been sent
> back the preamp has never b
them all.
>
> Maury
>
> --
> *From:* Graham Haddock
> *To:* Maury Guzick
> *Cc:* FlexRadio Reflector
> *Sent:* Wednesday, January 29, 2014 5:45 PM
> *Subject:* Re: [Flexradio] Preamp on 10 meters backwards
>
> Maury:
>
> If
Graham,
So, why does not then work that way on any other band; I checked them all.
Maury
From: Graham Haddock
To: Maury Guzick
Cc: FlexRadio Reflector
Sent: Wednesday, January 29, 2014 5:45 PM
Subject: Re: [Flexradio] Preamp on 10 meters backwards
Maury:
If you are referring to the panadaptor noise floor moving down in level as
you increase
preamp gain, then that is how the world is supposed to work.
A real signal should stay the same absolute (calibrated) level. And the
noise floor
should drop as the signal to noise ratio improves.
In a
@flex-radio.biz
Subject: Re: [Flexradio] preamp on 3000
Start PowerSDR and then open Setup. Tell me what the TRX board revision
number is? The one in parenthesis beside the serial number.
-Tim
---
Sent from my mobile phone
On Jun 17, 2012, at 11:56 AM, "y...@aol.com" wrote:
?? Can
ailto:flexradio-boun...@flex-radio.biz] On Behalf Of Tim Ellison
Sent: Sunday, June 17, 2012 12:21 PM
To: y...@aol.com
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] preamp on 3000
Start PowerSDR and then open Setup. Tell me what the TRX board revision
number is? The one in parenthesis be
Start PowerSDR and then open Setup. Tell me what the TRX board revision number
is? The one in parenthesis beside the serial number.
-Tim
---
Sent from my mobile phone
On Jun 17, 2012, at 11:56 AM, "y...@aol.com" wrote:
> ?? Can any one tell me the? apx. serial numbers when the preamp upgra
Phil,
I am running the F5k with VU and PSDR v2.2.3 and have noticed that when the
preamp is on for 80 through 12 meters and 2m and 70cm the "On" letters show
white. However, for 10 and 6 meters the preamp is on and the "On" letters
show gray. The preamp cannot be turned off on 10 and 6 meters wh
Phil:
There are some upper bands where the PreAmp MUST be turned on
to meet FCC specs, to stop/isolate LO leakage coming backwards out of the
QSD.
In this case, the PreAmp is turned on and the control dimmed to indicate
that you do not have control of the function.
This only occurs on the highest
That is an excellent rule of thumb, much better than good.
-Tim
-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Ross Stenberg
Sent: Tuesday, May 17, 2011 6:32 PM
To: flexradio@flex-radio.biz
Subject: Re: [Flexradio
A good rule of thumb...if the noise floor drops leave it on, if it does
not change, leave it off.
On 5/17/2011 5:19 PM, Joe Word wrote:
Thanks Ed, I thought 6 and 10 did have the ability to be turned
on/off. Was concerned something was wrong with the software. I
normally leave them on.
Joe N9
Thanks Ed, I thought 6 and 10 did have the ability to be turned
on/off. Was concerned something was wrong with the software. I
normally leave them on.
Joe N9VX
On Tue, May 17, 2011 at 5:08 PM, Ed Stallman wrote:
> on my 5000a using 2022 sw , I can turn on and off .. Under Antenna Tab I
> have c
on my 5000a using 2022 sw , I can turn on and off .. Under Antenna
Tab I have checked ( Enable Preamp controls on 6 ) Hope that does it for you ?
Ed
At 03:44 PM 5/17/2011, Graham Haddock wrote:
Joe:
The preamp in the 5000 is locked ON by design on 10 Meters and 6 Meters.
You are not allowe
ay 17, 2011 4:45 PM
To: Joe Word
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Preamp Not Working
Joe:
The preamp in the 5000 is locked ON by design on 10 Meters and 6 Meters.
You are not allowed to turn it off.
Are you having sensitivity problems?
--- Graham
==
On Tue, May 17, 2011 at
Joe:
The preamp in the 5000 is locked ON by design on 10 Meters and 6 Meters.
You are not allowed to turn it off.
Are you having sensitivity problems?
--- Graham
==
On Tue, May 17, 2011 at 3:35 PM, Joe Word wrote:
> On 6 and 10 meters my preamp is not working. The ON is grayed out and
> the
Was---
Subject: Re: [Flexradio] FlexRadio Digest, Vol 71, Issue 12
Jim,
I think it is by design the you can not turn the pre-amp on of the
higher bands.. The preamp, in addition to providing gain also provides
isolation that prevents internal signals (conducted radiation) from
reaching
Try a hardware reset.
http://kc.flex-radio.com/KnowledgebaseArticle50350.aspx
If that does not work, contact Dudley with FlexRadio support
(supp...@flex-radio.com)
-Tim
-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of
o: mi...@scsitoolbox.com
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Preamp vs AGC-T?
On Sun, Jan 10, 2010 at 11:55 AM, Michael Jones
wrote:
> Hello All,
>
>
>
> I'm wondering what is the relationship between the AGC-T setting and
> the pre amp setting?
They are different,
On Tue, Jan 12, 2010 at 6:20 PM, Bruce Mills - KL7JDR wrote:
>
> Thank you very much for the detailed information.
>
> Wonder if a low noise preamp between ant loop out & in would help even more ?
It is entirely determined by the ratio of the atmospheric noise (noise
picked up by the antenna) to
Thank you very much for the detailed information.
Wonder if a low noise preamp between ant loop out & in would help even more ?
73's , Bruce
KL7JDR
Bruce W. Mills
P.O. Box 1500
31490 Echo Lake Road
Soldotna , Alaska
99669
(907)262-4373
kl7...@alaska.net
__
On Sun, Jan 10, 2010 at 11:55 AM, Michael Jones wrote:
> Hello All,
>
>
>
> I'm wondering what is the relationship between the AGC-T setting and the pre
> amp setting?
They are different, way different. You use them for completely different things.
Probably the first thing to do is to read the a
, 2009 9:15 AM
To: Charles Redding
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Preamp on Flex 3000 makes radio go deaf
For anyone having an issue with the FLEX-3000 preamp, please contact
Dudley (supp...@flex-radio.com) so he can run some diagnostic tests to
triage the problem. FYI, he
For anyone having an issue with the FLEX-3000 preamp, please contact
Dudley (supp...@flex-radio.com) so he can run some diagnostic tests to
triage the problem. FYI, he is in an all day meeting today and will not
be answering e-mails until later this evening.
-Tim
---
W4TME
FlexRadio Systems -
I have the exact same problem with my Flex3000, started at Field day as
well. The rig is still packed in it's case as I have not had time to get to
it.
I had a hard time receiving anything on 6, 10, 12, and 15 meters with the
pre amp off. If it was on it created a S9 + noise floor.
I'm going to
Clay
an question I think I can answer.
If you got to the antenna selection for 6 meters the amount of gain your
preamp has can be entered into the 'Gain' box.
According to the manual, I think that will made the adjustment/compensation
automagically.
---
Hi Bill,
Far as I can tell, I don't have the problem with SVN: 1875.
What I do have a problem with (not a bug, but an improvement) is that
when I change bands Preamp, and AF gain don't change to match. If your
radio comes up on a specific band at each startup, you could see what you
describe.
Consider yourself jumped. ;) We really do prefer that these sorts of
things get posted to the bug tracker so we won't forget to fix them if we
don't get to them right away.
However, I have fixed this today in the SDR-X branch. :) Enjoy.
Eric Wachsmann
FlexRadio Systems
PS. Thanks to others
Jim,
This has just been fixed in SVN 1213.
-Tim
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jim McLester
Sent: Friday, June 01, 2007 2:02 PM
To: flexradio
Subject: [Flexradio] preamp
I notice going from preamp low to mid, or from high to mid, not
At 01:15 PM 3/4/2007, Mark Mumaw wrote:
>I get about -130dBm when I use this method. Is this what was is
>expected???
Converting that to an receiver noise figure: 500 Hz = 27 dBHz so
-130-27 = -157 dBm/Hz, compared to a kTB thermal noise floor of -174
dBm/Hz, about 17 dB NF, which is pretty typ
Mark Mumaw wrote:
> I get about -130dBm when I use this method. Is this what was is
> expected???
Exactly what mine gets.
>
> Mark NU6X
>
>
>
Bob
N4HY
--
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
"Taking fun a
Yes.
-Tim
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mark Mumaw
Sent: Sunday, March 04, 2007 4:15 PM
To: FlexRadio reflector
Subject: Re: [Flexradio] Preamp issue - Results
I get about -130dBm when I use this method. Is this what was is
expected
I get about -130dBm when I use this method. Is this what was is
expected???
Mark NU6X
>This is just not possible with the way we do calibration. Something
>else is amiss. After calibration against a known source, BOTH of
your
>radios should read -90 dBm if you present -90 dBm at the anten
Tom Thompson wrote:
> Dana,
>
> The question of sensitivity still remains as far as I can tell. Can you
> borrow an attenuator and bring the XG1 down to the noise floor on both
> yours and Joe's radio. The 10 dbm difference may be a calibration
> issue rather than a sensitivity issue unless
Dana,
it looks to me that you may have a problem with the filter switches
either on the BPF or the RFE boards. Due to bit errors and/or
unreliable connections wrong filter(s) get selected. That has happened
to me.
73, Ahti OH2RZ
On 03/03/07, N1OFZ <[EMAIL PROTECTED]> wrote:
> When we calibrated
When we calibrated with the XG1 both radios (SDR-1000s) showed the
received signal at S9 after calibration. The 10 dBm difference was
on a signal we tuned to on the air. I think it was on 20m. I have
not yet had a chance to get the radio back on the air at my home to
compare to the Yaesu
are both s-meters calibrated to the same point?
for example
50uv for s9?
I had to adjust my Kenwood to the same S9 50uv I believe and they read almost
the same all the time.
I didnt see that mentioned anywhere, but if I missed it sorry
I am missing some emails for some reason
Hi Dana,
Are you saying that, with the same signal input (from
a test generator, for example), your radio, after
calibration, shows roughly a 10 dB difference in its
s-meter reading compared to the other radio?
My experience with several Flex radios is that, if
they're both calibrated with the sa
Dana,
The question of sensitivity still remains as far as I can tell. Can you
borrow an attenuator and bring the XG1 down to the noise floor on both
yours and Joe's radio. The 10 dbm difference may be a calibration
issue rather than a sensitivity issue unless you can still hear signals
on y
Hi all,
I spent some time last night pouring over the ECO's and determining
which ones were done to my radio. I did end up taking off the BPF
board to get a better look at the RFE. Also during this process I
reviewed the block diagrams that Peter sent (thanks!).
Today with the help of Joe
V8A <[EMAIL PROTECTED]>
>To: flexradio@flex-radio.biz
>Subject: Re: [Flexradio] Preamp issue?
>Date: Thu, 01 Mar 2007 12:33:44 -0500
>
>But Dan's not just comparing S-meter readings. He's talking about being
>able to hear signals on the FT-847 that he can't hear
)hetnet.nl <mailto:[EMAIL PROTECTED]> ; pa0pvn(a)hetnet.nl
<mailto:[EMAIL PROTECTED]> ;
pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org .
Van: [EMAIL PROTECTED] namens N1OFZ
Verzonden: do 1-3-2007 19:35
Aan: flexradio@flex-radio.biz
Onderwerp: Re: [Flexr
Thanks everyone for the suggestions.
A local SDR owner has offered to give me a hand. Hopefully I'll be
able to determine quickly if it's a software or hardware issue. I'll
report back my finding.
I have to say that the SDR community has been the most helpful and
supportive group I've see
Tim,
I don't, but when I have an S3 signal on the FT-847 that I hear
clearly and I tune the same freq on the SDR and I hear nothing but
static it leads me to believe that the 847 is not too far off. A S5
signal on the 847 is clear as a bell and on the SDR it will be barely
copyable. Unfo
On 3/1/07, Tim Ellison <[EMAIL PROTECTED]> wrote:
> Also, don't trust the S meter on the FT-847. If you have calibrated
> using a signal of known strength, the SDR-1000 is much more accurate.
>
If you have an accurate 1uV signal generator, you can test the
absolute sensitivty of the rx and compa
But Dan's not just comparing S-meter readings. He's talking about being
able to hear signals on the FT-847 that he can't hear on the SDR-1000.
I have no ax to grind in this, as I have neither rig.
73
Alan NV8A
On 03/01/07 12:00 pm Tim Ellison wrote:
> Also, don't trust the S meter on the FT-
It was set at 100. I've increased it (all the way) to 120 and there
is no difference audible or on the meter.
On Mar 1, 2007, at 11:13 AM, Mike wrote:
> You did not mention the setting of your RF
> control. Have you tried that at a high
> (> 100) setting?
__
--
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Naruta
Sent: Thursday, March 01, 2007 11:19 AM
To: N1OFZ
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Preamp issue?
Hi Dana,
You did not mention the setting of your RF
control. Have you tried that at a high
(>
Hi Dana,
You did not mention the setting of your RF
control. Have you tried that at a high
(> 100) setting?
On earlier versions of PowerSDR,
under the AGC pull-down
choose Custom,
then on the Set Up menu option,
DSP,
AGC/ALC,
under the AGC column you can increase the
Max Gain to as sensitive as
The preamp will affect the display in both RX and TX for the time being.
This is because right now, we don't have any sort of TX calibration, but
rather just use the RX values.
Eric Wachsmann
FlexRadio Systems
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf
I am in complete agreement that 512 is just about ideal and yesterday Frank
and I made 512 the default in the Linux code. We have already identified at
least one computer that will not run the new and reduced stuff at 512
without
an occassional underrun (which is handled automatically inside):
On 6/15/05, Robert McGwier <[EMAIL PROTECTED]> wrote:
>
> Frank and I have the resize code and keyer code in. The Linux code (if
> we can EVER get sourceforge
> to work right) is just so solid. It is amazing to dial the buffer size
> up and down to 64 samples per buffer
> (where the CPU usage go
Larry, see notes.
> -Original Message-
> From: Larry Loen [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, June 15, 2005 9:07 AM
> To: Gerald Youngblood; flexradio@flex-radio.biz
> Subject: Re: [Flexradio] Preamp
>
>
> Gerald Youngblood wrote:
>
> > For
Let me be just a little stronger. On 20 meters and below, if the band
is open on 20 and at all times below 20,
there is never a need for the high setting. The atmospheric noise floor
prevent the radio from receiving down
to the noise floor in the High setting. Gain 10 dB of head room by
putti
Gerald Youngblood wrote:
For virtually all HF use, the Medium setting of the preamp is best.
The High would typically only be used for weak signal work on 6 and 10
meters. Use of the Low and Off positions should be extremely rare to
prevent overload of the sound card A/D converter if you nei
For virtually all HF use, the Medium setting
of the preamp is best. The High would typically only be used for weak
signal work on 6 and 10 meters. Use of the Low and Off positions should be
extremely rare to prevent overload of the sound card A/D converter if you
neighbor is on the air. I
So do I, dramatic differences in fact easily seen in SPEC mode where the
DC level
is impacted most by these settings.
Bob
Bob Tracy wrote:
John,
I notice a distinct difference between the preamp settings.
Bob K5KDN
--
John,
I notice a distinct difference between the
preamp settings.
Bob K5KDN
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