It was really a combination of the echo and recognising your call from
this venue.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of ab7r
Sent: Sunday, December 11, 2005 2:55 PM
To: Flexradio@flex-radio.biz
Subject: [Flexradio] SSB audio question
Not sure
It has been my experience with a slower computer that the buffer size will
effect the transmit echo. Try lowering it and see what reports you get, I
needed to use the lowest setting.
73
Hank - K9LZJ
Hank Wolfla
Lyman H. Wolfla II, Inc.
1308 S. Peace St.
Greenfield, IN 46140
[EMAIL PROTECTED]
There seems to me that there is a common theme floating around here
concerning the buffer settings for optimal use. Since there also seems
to be answers that are all over the spectrum (which is understandable
due to the variables involved), maybe a more scientific approach is
required
Maybe what
On behalf of my German friends thanks a lot
to the FlexRadio staff for bringing back the forums. Well done -
hopeannon supervisedserver change will never occur
again.
73 - Klaus, DK7XL
Larry,
Im confused about what you
want. Are you looking for a way to hook
one antenna up to multiple radios? (RX for some and TX for others?)
Eric Wachsmann
FlexRadio Systems
-Original Message-
From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry W8ER
I like this approach and would appreciate being able to see some data
like this. However, I'd like to throw in my 2 cents here. An even
bigger issue than having just a 1GHz processor is: What processes are
running at the same time as the PowerSDR software? We have seen
instances where two
Eric .. I would like to eliminate all other
receivers from my ham shack. The Flex is the best. Occasionally I like to fire
up an old boatanchor AM transmitter or something other thanthe Flex
transmitter. I am looking for a way to mute the Flex receiver. Killing the audio
is fairly simple
Jeff,
As in all technologies, there are tradeoffs. In this case the tradeoff is
phase noise vs. spurs at discrete frequencies. If we had used a traditional
PLL type LO, my observations indicate that we would probably have 20dB lower
close spacing dynamic range due to phase noise that is present
Eric,
I, too, would like to mute the SDR receiver. Sometimes one has need to
use a external transmitter separate from the SDR and the ability to
mute the SDR receiver, ie, make it deaf during those transmissions,
would be nice.
73,
Dale AA5XE
Eric Wachsmann - FlexRadio wrote:
I like this approach and would appreciate being able to see some data
like this. However, I'd like to throw in my 2 cents here. An even
bigger issue than having just a 1GHz processor is: What processes are
running at the same time as the PowerSDR software? We have seen
instances where two
Well, again, Im confused by your
description because we already have a Mute feature that kills the audio without
affecting the AGC. If youre saying
that you need a way to do this via an external relay, then that is something
that could be arranged in the software.
You could hook one of
Eric,
The desired mute needs to be more than just the audio since the agc
will get twanged badly. The objective, in addition to muting the
audio is to have the RX up and running immediately upon release of
the mute. It should, in addition to being a single hardware closure,
work thru the
I have just experienced an unusual problem.
Whenever I try to transmit, the filter display on the screen jumps to show
approx. 2600hz wide. (it may be a bit wider)
This happens at any setting of filter width, 6khz
down to minimum.
When I stop transmitting it goes back to the
correct initial
Ross,
The receive filters are separate from the transmit
filters. The transmit filter frequency
cuts can be adjusted on the Setup Form on the Transmit Tab.
Eric Wachsmann
FlexRadio Systems
-Original Message-
From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Hi all,
If the chosen buffer size of the Audio and DSP setup influences the audio
quality of SSB transmissions as reported by Hank, I propose to make the
buffer sizes separate and selectible for reception and transmission. One
buffer size may be optimal for cw and digital mo-des while an
It appears an earlier email of mine did not get to
the system.
I have just had an unusual problem , unusual in
that it has not happened before.
Operating Olivia on 20meters. with digu button
actuated
I started the software this morning. the screen
immediately showed the tx filter at
Ross,
I answered your previous mail. 2 things:
The RX and TX filters are set in different places. The RX side is set on the front
panel. The TX is set on the Setup
Form - Transmit Tab.
There was a bug in Preview 7 (and possibly before) that caused the DIGL/DIGU
At 08:28 AM 12/14/2005, Larry W8ER wrote:
Eric
.. I would like to eliminate all other receivers from my ham shack. The
Flex is the best. Occasionally I like to fire up an old boatanchor AM
transmitter or something other than the Flex transmitter. I am looking
for a way to mute the Flex receiver.
OK I really do not understand what for the MUTE is.
If you want to transmit with other TX - OK just press PTT on the SDR and
set the TX gain to 0 and you are all done. In any case you do NEED some
external relay to take care of the antenna so why not for the PTT too !
73 !
Jiri
OK1RI
On
Larry wants to use separate receivers and transmitters -
possible different antennas for the receiver and transmitter.
In this situation for protecting the receiver, it must be
completely isolated from the antenna during the transmitting
time by a good antenna relay, PIN diode switch or high
Hi Jim,
Yes, you are correct. I spoke with Eric on the
landline earlier and was able to explain it more clearly to him. Sometimes
email just doesn't do it as well as a phone call! I think he understands exactly
what I was looking for and may be working on a simple implementation. I can't
Eric has to consider the protection of the front end of the receiver when
muting as I'm sure there is a max limit that can't be exceeded.
My TEK analyzer says Max +20 dbm on the input. Cost me $2200 to get it fixed
the last time I didn't pay attention.
Any leakage data on the various
The solution Larry and I discussed was an audio only fix that does not
handle the RF side at all. We will be testing an Auto Mute function
using X2-12 as an input. Grounding this input will assert the Mute
function as it exists today. RF switching will need to be handled
separately and should
Eric,
Make sure to allow the user to select if the input is a mute or an
unmute by having a check box for the sex of the input.
Richard W5SXD
Eric Wachsmann - FlexRadio [EMAIL PROTECTED] wrote:
(12/14/2005 17:28)
The solution Larry and I discussed was an audio only fix that does not
handle
Meaning the polarity of the switch? I didn't implement that in my first
pass, but that's a simple thing to add if necessary.
Eric Wachsmann
FlexRadio Systems
-Original Message-
From: richard allen [mailto:[EMAIL PROTECTED]
Sent: Wednesday, December 14, 2005 5:47 PM
To: [EMAIL
Meaning in one setting grounding the pin will mute. In the other,
grounding the pin will unmute. Some radios had an enable; others had a
mute. I assume the pin has a pullup resistor?
-Original Message-
From: Eric Wachsmann - FlexRadio [mailto:[EMAIL PROTECTED]
Sent: Wednesday,
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