[Aavso-sid-list] Gyrator II receiver

[Alexmcw]

The difference can depend on angle of sun (i.e., season), the propagation 
path, etc.  There can and will be day to day variations. Can you look at the 
signal after amplification and before rectification by using an 
oscilloscope?  Turning the gain all the way up could possibly overload the 
amplifier.  Try turning the gain down and measure with your voltmeter to see 
if the proportion remains about the same : (19 - 32 mv) going to, say, (9 - 
16 mv).

Al McWilliams


----- Original Message ----- 
From: "Mike Thompson" <mthompson14 at yahoo.com>
To: <Aavso-sid-list at aavso.org>
Sent: Thursday, March 27, 2008 9:25 AM
Subject: [Aavso-sid-list] Gyrator II receiver


> Hello All,
>
>  I just recently got my Gyrator II receiver up and
> running. I've been running some tests, and all seems
> to be working as to be expected with the receiver and
> amplifier portion. However when I hook a meter up to
> the rectifier-integrator with the gain turned all the
> way up I am only seeing a difference of about 10
> millivolts (19mV - 32mV) between sun up and sun down.
>
> Is this to bee expected or should I be reading higher
> values? Could it be that my loop antenna just isn't
> pulling in enough signal?
>
> Can anyone speak on this behalf?
> Please Advise and thanks
> Mike T.
>
>
> 
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