Hi Willi - I was getting just the same problem. I was using Release v1.2.0 and when I installed v1.4.2 I found I couldn't calibrate the S-meter fom my -70dBm signal source. I was also getting error messages that the signal was less than 30dB above the noise floor when I tried to calibrate the frequency. I was using ASIO4ALL v2 -- and the problems disappeared when I installed ASIO4ALL v1.8 as recommended.
73 Chris G3WCD
----- Original Message -----
Date: Wed, 20 Jul 2005 00:22:51 +0200
From: "Willi Reppel" <[EMAIL PROTECTED]>
Subject: Re: [Flexradio] S-Meter
To: "Eric" <[EMAIL PROTECTED]>, <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="iso-8859-1"
Eric,
Thanks for your problemsolving hint. I did not use a signal source and just
entered -120 dB as level in the calibration section as usual in previous
program versions. I have downloaded the latest operation manual but did not
have the time to digest all of it.
Best 73 de SM6OMH Willi
----- Original Message -----
From: Eric
To: 'Willi Reppel' ; [email protected]
Sent: Tuesday, July 19, 2005 6:06 PM
Subject: RE: [Flexradio] S-Meter
Willi,
How are you calibrating the rig? If you are not using a signal source for the
level calibration, then this is likely just a calibration issue. Try
calibrating on a strong signal by just guesstimating the value of the peak.
Try to get the noise floor of the spectrum down around -130ish and you'll be
fairly close (+/- 10dB).
Without a signal source, some changes that we made in the 1.3.x Beta series
make it tough to calibrate accurately. The old method of just connecting to a
dummy load and using -120dB will no longer be accurate and is being taken out
of the manual/quick start guide.
Eric
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Willi Reppel
Sent: Tuesday, July 19, 2005 10:48 AM
To: [email protected]
Subject: [Flexradio] S-Meter
Hi all,
I am having problems with the RX Meter readings with different preamp settings:
Preamp off, no antenna connected:
Noise floor -125, S-Meter bar graph+60, S-Meter numerical +30 dBM
Preamp low
Spectrum disappears, S-Meter bar graph 2.5, S-Meter numerical -110 dBM
Preamp Medium
Noise floor -145, S-Meter bar graph +60, S-Meter numerical +10 dBM
Preamp High
Spectrum disappears, S-Meter bar graph +0.5, S-Meter numerical -126 dBM
We had a lot of qrn here lately and may be a part of the front end is
damaged. Any hint where to start fault tracing is welcomed.
Best 73 de SM6OMH Willi
