(a)amsat.org .
Van: [EMAIL PROTECTED]
Verzonden: zo 28-1-2007 16:01
Aan: k5nu
CC: FlexRadio@flex-radio.biz
Onderwerp: RE: [Flexradio] sdr swr
Mike,
Could it be that the tranmitter is oscilating wild sometimes, in that case
the frequency can be out of the usable band for the a
IL PROTECTED]; k5nu; FlexRadio@flex-radio.biz
Onderwerp: RE: [Flexradio] sdr swr
At 07:23 AM 1/28/2007, [EMAIL PROTECTED] wrote:
Jim, see in text
73 (sorry no spell checker on this system...)
groeten Peter
petervn(a)hetnet.nl <mailto:[EMAIL PROTECTED]> ; pa0pvn(a)hetnet.nl
<ma
Hi Jim,
Thanks for the reply, and my apologies...despite your discussion (some of
which I agree with), I honestly can't tell if you agree with my position (or
not), but from your reply's tenor I suspect you disagree. My position
remains as stated below:
"In my opinion, the discussion really come
Check the following settings:
SPLIT=Unchecked
XIT=0
RIT=0
Sub Rx=Unchecked
Ext Crl=Not Enabled
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___
At 11:20 AM 1/28/2007, Jeff Anderson wrote:
>Hi Jim,
>
>If you believe that changing a signal generator's impedance from 50 ohms to
>100 ohms by adding a series resistor at the *generator* end of the
>transmission line that is matched to its load will make a 1:1 SWR suddenly
>2:1, or if you believe
One Word
Cables
either parallel port or between sound card and the
rig. I would look for RF and/or poor connections on
the cables. 9 times out of 10 if I'm having some
trouble it's the cables improperly seated or some
other cable problem
73 W9OY
___
Jeff, K6JCA
-Original Message-
From: Jim Lux [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 28, 2007 10:04 AM
To: Jeff Anderson; [EMAIL PROTECTED]; k5nu; FlexRadio@flex-radio.biz
Subject: RE: [Flexradio] sdr swr
At 07:36 AM 1/28/2007, Jeff Anderson wrote:
>Hi Peter,
Actually,
Mike,
You are welcome to borrow my SDR-1000 to see if the problem is your
setup or your box.
Give me a call at 361-549-7218 , my cell phone.
73, Larry K2LT
k5nu wrote:
> A question for the group. On the "transmit" tab I have the Tune set to Zero.
> I still have 35w output as I click the Tune
.org .
>
>
>
>--
>From: Jim Lux [mailto:[EMAIL PROTECTED]
>Sent: Sun 28-1-2007 15:55
>To: [EMAIL PROTECTED]; k5nu; FlexRadio@flex-radio.biz
>Subject: Re: [Flexradio] sdr swr
>
>At 03:08 AM 1/28/2007, [EMAIL PROTECTED] wrote:
> >Mike
> >
> >
&g
At 07:36 AM 1/28/2007, Jeff Anderson wrote:
>Hi Peter,
Actually, that was my statement...not Peter's
>I believe your statement that SWR is affected by the generator's impedance
>is a common misconception. Actually, SWR, as is typically defined, is
>independent of generator (i.e. transmitter, in
ED]; Jim Lux; k5nu; FlexRadio@flex-radio.biz
Onderwerp: RE: [Flexradio] sdr swr
Hi Peter,
I believe your statement that SWR is affected by the generator's impedance
is a common misconception. Actually, SWR, as is typically defined, is
independent of generator (i.e. transmitter, in our case)
is an swr of 1:1.
Best regards,
- Jeff, K6JCA
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED]
Sent: Sunday, January 28, 2007 7:23 AM
To: Jim Lux; k5nu; FlexRadio@flex-radio.biz
Subject: Re: [Flexradio] sdr swr
Jim, see in text
73 (sorry n
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff Anderson
Sent: Sunday, January 28, 2007 10:26 AM
To: k5nu; FlexRadio@flex-radio.biz
Subject: Re: [Flexradio] sdr swr
Mike,
Here's an experiment to try: unplug, at the SDR, the audio cable fro
D]
[mailto:[EMAIL PROTECTED] Behalf Of k5nu
Sent: Sunday, January 28, 2007 5:08 AM
To: FlexRadio@flex-radio.biz
Subject: [Flexradio] sdr swr
A question for the group. On the "transmit" tab I have the Tune set to
Zero. I still have 35w output as I click the Tune button. Is that normal?
ailto:[EMAIL PROTECTED]
Sent: Sun 28-1-2007 15:55
To: [EMAIL PROTECTED]; k5nu; FlexRadio@flex-radio.biz
Subject: Re: [Flexradio] sdr swr
At 03:08 AM 1/28/2007, [EMAIL PROTECTED] wrote:
>Mike
>
>
>
>What is still wondering me the most is that when the SWR is close to
>1, the transmitte
[mailto:[EMAIL PROTECTED]
Sent: Sun 28-1-2007 14:21
To: [EMAIL PROTECTED]
Subject: Re: [Flexradio] sdr swr
Peter, I appreciate your reply to my message. I am very nearly ready to sell
the SDR and move on. It has driven me crazy. I have sent it to Austin twice,
but they can't seem to find an
At 03:08 AM 1/28/2007, [EMAIL PROTECTED] wrote:
>Mike
>
>
>
>What is still wondering me the most is that when the SWR is close to
>1, the transmitter impedance
>
>should not have any influence on the SWR.
Actually, no.. think about this... what if the Transmitter output Z
were 100 ohms... You'd
o a call on Monday.
73,
- Jeff, K6JCA
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of k5nu
Sent: Sunday, January 28, 2007 5:08 AM
To: FlexRadio@flex-radio.biz
Subject: [Flexradio] sdr swr
A question for the group. On the "transmit" tab I have th
A question for the group. On the "transmit" tab I have the Tune set to Zero.
I still have 35w output as I click the Tune button. Is that normal? Also on
my external wattmeter, the power out in the "Tune" position, is very unstable.
It will "flutter" back and forth by as much as 25-30 watts.
By the way, my current mode of operation is as follows:
Warm up the 756 Pro and amp. Listen on the sdr. When I find a dx station I
want to work, I switch to the Icom to work him. Just this morning I found
Zone 18 calling on 80 longpath. Switched to the Icom and worked him, then back
to th
Last night on the same antenna, swr on the external digital meter, 1.05 , power
out on Tune- 11w.
This morning without changing a thing, swr 3.8, power out on Tune 42w.
Of course putting another radio in its place, swr 1.0 as usual.
The puzzling part is that this happens so far only on one part
;
pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org .
Van: [EMAIL PROTECTED] namens k5nu
Verzonden: zo 28-1-2007 5:56
Aan: FlexRadio@flex-radio.biz
Onderwerp: [Flexradio] sdr swr
Thanks for all the replies to my original problem with the differing swr
readings between th
Thanks for all the replies to my original problem with the differing swr
readings between the sdr and other rigs. Of course like so many other things
about this sdr, it is not consistent. Tonight when I tried again, the swr on
the same antenna with the sdr is 1/1. Power level is 10 watts.
At 03:59 PM 1/27/2007, [EMAIL PROTECTED] wrote:
>Interesting Mike, I like puzzles. To far away to see for myself. ;-)
>
>
>
>- What does the set on a 50 ohm dummyload?
>
>
>
>- Sure no crooked cables (lose shields are a common problem when you
>move cables).
Oh yeah.. been there, been bitten mor
At 01:21 PM 1/27/2007, k5nu wrote:
>Okay, here is the set up.On one 20 meter antenna I have, the
>following results are puzzling.
Is this with the tuner in or out on the SDR1000?
>Sdr "tune" clicked swr on independent swr meter - 3.00
So, in this scenario, you have SDR1000 Internal PA,
(a)amsat.org .
Van: [EMAIL PROTECTED] namens k5nu
Verzonden: za 27-1-2007 22:21
Aan: FlexRadio@flex-radio.biz
Onderwerp: [Flexradio] sdr swr
Okay, here is the set up.On one 20 meter antenna I have, the following
results are puzzling.
Sdr "tune" clicked swr on indepe
, January 27, 2007 5:42 PM
To: flexradio@flex-radio.biz
Subject: Re: [Flexradio] sdr swr
I wouldn't have a clue since I am a beginner. But to get an answer I
expect
you would have to diagram the setup and be specific about all the
components: antenna, feed line, swr meter make and model, com
I wouldn't have a clue since I am a beginner. But to get an answer I expect
you would have to diagram the setup and be specific about all the
components: antenna, feed line, swr meter make and model, complete software
and hardware sdr1000 configuration, etc.
>Okay, here is the set up. On one 2
Okay, here is the set up.On one 20 meter antenna I have, the following
results are puzzling.
Sdr "tune" clicked swr on independent swr meter - 3.00
Different radio, exact same path, placed in same place as sdr, swr 1.05. Only
diffrenece is radio connected to antenna. I test the same ant
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