At 10:36 AM 2/6/2007, Jeff Anderson wrote:
>I know that my LP-100 Power Meter is calibrated band
>by band, and so I'm wondering...how flat across the
>spectrum (from 2 to 30 MHz) is response of the
>directional coupler within the SDR's PA?
>
>Per the algorithm listed in Eric's email, any changes
>i
TECTED]> ; pa0pvn(a)hetnet.nl
> <mailto:[EMAIL PROTECTED]> ;
> >pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org .
> >
> >
> >
> >
> >Van: [EMAIL PROTECTED] namens Larry Taft
> >Verzonden: di 6-2-2007 18:25
> >Aan:
] namens Larry Taft
>Verzonden: di 6-2-2007 18:25
>Aan: Eric Wachsmann
>CC: 'FlexRadio'
>Onderwerp: Re: [Flexradio] PA calibration routine
>
>
>
>So its a Big Horse Small Horse problem. If you want the same amount of
>poop out of the small horse as the big hor
t;
>groeten Peter
>petervn(a)hetnet.nl <mailto:[EMAIL PROTECTED]> ; pa0pvn(a)hetnet.nl
><mailto:[EMAIL PROTECTED]> ;
>pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org .
>
>
>
>
>Van: [EMAIL PROTECTED] namens Larry Taft
>Verzonde
;mailto:[EMAIL PROTECTED]> ;
> pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org .
>
>
>
>
> Van: [EMAIL PROTECTED] namens Larry Taft
> Verzonden: di 6-2-2007 18:25
> Aan: Eric Wachsmann
> CC: 'FlexRadio'
> Onderwerp: Re: [Flexradio] PA c
(a)amsat.org .
Van: Larry Taft [mailto:[EMAIL PROTECTED]
Verzonden: di 6-2-2007 19:53
Aan: Tim Ellison
CC: [EMAIL PROTECTED]; Flex-radio Reflector
Onderwerp: Re: [Flexradio] PA calibration routine
given 1 "S unit" = 6 db then the increase is (10log(P2/P
.itsco.com
>
> "Si fractum non sit, id reficere"
> -Unknown Roman consultant
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> Sent: Tuesday, February 06, 2007 1:32 PM
> To: Larry Taft; Eric Wachsmann
> -Original Message-
> From: Jeff Anderson [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, February 06, 2007 12:36 PM
> To: Eric Wachsmann; 'Klaus Lohmann'; 'FlexRadio'; 'Gerald Youngblood';
> 'John P Basilotto W5GI'
> Subject: Re: [Flexradi
1:32 PM
To: Larry Taft; Eric Wachsmann
Cc: FlexRadio
Subject: Re: [Flexradio] PA calibration routine
Dear OM's
How many S-points are gained going from 90watt to 100watt ???
:-)
73
groeten Peter
petervn(a)hetnet.nl <mailto:[EMAIL PROTECTED]> ; pa0pvn(a)hetnet.nl
<
I know that my LP-100 Power Meter is calibrated band
by band, and so I'm wondering...how flat across the
spectrum (from 2 to 30 MHz) is response of the
directional coupler within the SDR's PA?
Per the algorithm listed in Eric's email, any changes
in frequency response of the directional coupler co
Van: [EMAIL PROTECTED] namens Larry Taft
Verzonden: di 6-2-2007 18:25
Aan: Eric Wachsmann
CC: 'FlexRadio'
Onderwerp: Re: [Flexradio] PA calibration routine
So its a Big Horse Small Horse problem. If you want the same amount of
poop out of the small horse as the big horse then
---
>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>> radio.biz] On Behalf Of Klaus Lohmann
>> Sent: Tuesday, February 06, 2007 3:33 AM
>> To: FlexRadio; Gerald Youngblood; 'John P Basilotto W5GI'
>> Subject: [Flexradio] PA calibration routine
>>
exRadio Systems
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Klaus Lohmann
> Sent: Tuesday, February 06, 2007 3:33 AM
> To: FlexRadio; Gerald Youngblood; 'John P Basilotto W5GI'
> Subject: [Flexradio] PA calibra
I have done similar "boosts" to Drake TR-7 solid state amps where the
160 and 10 meter bands have lower output. What I discovered is for the
most part the carrier does not increase that much. Most of the increase
in apparent power output was due to harmonics and garbage increasing
faster than
Klaus,
I have had two different SDR-1000's and they both acted as you
described. The one I have now was made last May, so it is a fairly
current hardware model. I ran them on a Kenwood PS-52 power supply which
delivered 13.8 volts. I switched the power supply to an Astron and set
the supply vo
ctices.
vy 73
Willi
- Original Message -
From: "Klaus Lohmann" <[EMAIL PROTECTED]>
To: "FlexRadio" ; "Gerald Youngblood"
<[EMAIL PROTECTED]>; "'John P Basilotto W5GI'" <[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2007 1:33 A
Klaus, our specs do not say 100 watts on all bands-it's a NOMINAL 100 watts
which means on some bands more than 100 and others less. The criteria for
passing the radio during final inspection is 75 watts on 10 meters; however
with the latest modification the 10 m power is closer to 85 or more. 90
"Klaus Lohmann" <[EMAIL PROTECTED]> schrieb:
Eric,a few weeks ago I asked you to provide a software version to me which
allows me to go below 38.0dB in the calibration routine table. Maybe I have
missed your answer but I found out myself that 38.0dB is already the lower
limit: at this level w
Eric,
a few weeks ago I asked you to provide a software version to me which allows me
to go below 38.0dB in the calibration routine table. Maybe I have missed your
answer but I found out myself that 38.0dB is already the lower limit: at this
level we have full drive from the 4-stack board.
There
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