you have a "carrier level" control.
73's
Harry
W0LS
-Original Message-
From: Mike WA8BXN
Sent: Thursday, October 06, 2011 8:54 PM
To: Bill Marvin ; Brian Lloyd
Cc: t...@flexradio.com ; flexradio@flex-radio.biz
Subject: Re: [Flexradio] 100 Watts on AM
AM can be trick
Tim,
It sounds like you have the issue identified well. If it helps to
establish a timeline, I noticed the onset of this anomaly with the first
version of PSDR that introduced the upgrades to FM (2.2.2 beta?). At
that time, the maximum available carrier output on FM and AM both went
from roug
I won't repeat myself.
Bill - W1MPY
From: br...@lloyd.com [mailto:br...@lloyd.com] On Behalf Of Brian Lloyd
Sent: Thursday, October 06, 2011 9:26 PM
To: Bill Marvin
Cc: t...@flexradio.com; flexradio@flex-radio.biz
Subject: Re: [Flexradio] 100 Watts on AM
On Thu, Oct 6, 2011
On Thu, Oct 6, 2011 at 6:54 PM, Mike WA8BXN wrote:
>
>
> AM can be tricky.
And here we used to think that SSB could be tricky! Well, with my Central
Electronics Multiphase model 10A, it was. I had to get two balanced mixers
nulled and I had to get levels through both paths the same so that ther
AM can be tricky. Both carrier level and modulation level must be set
properly. Just getting to 100 W PEP is not enough. You could have 99 watts
of carrier and just a little modulation to hit 100 W PEP, for example. On AM
someone has to figure out what the drive control should do. Ultimately i
On Thu, Oct 6, 2011 at 3:39 PM, Bill Marvin wrote:
> Brian,
>
> ** **
>
> I have both a scope and modulation monitor in line. The discussion involves
> AM “carrier” level, not peak power level.
>
Color me confused then. As I understand it you want to set the carrier level
so that the 100% p
rvin
Cc: t...@flexradio.com; flexradio@flex-radio.biz
Subject: Re: [Flexradio] 100 Watts on AM
On Thu, Oct 6, 2011 at 11:44 AM, Bill Marvin wrote:
Tim,
I also do not see output power, in the AM mode, as you describe. I am
running a 5000A and PSDR-2.2.3. I record the following numbers. The
On Thu, Oct 6, 2011 at 11:44 AM, Bill Marvin wrote:
> Tim,
>
> I also do not see output power, in the AM mode, as you describe. I am
> running a 5000A and PSDR-2.2.3. I record the following numbers. The Fwd Pwr
> as displayed on the PSDR console match the readings observed on a Bird 43
> wattmete
Based on feedback I have received, looks like we have a bug in the AM
carrier level. What I described below should be how it works, but isn't
how it is working now.
In the mean time for AM users, set this value to between 8 and 12 to get
a 25 watt carrier.
-Tim
---
Tim Ellison, W4TME
Produc
dio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Tim Ellison, W4TME
Sent: Thursday, October 06, 2011 12:04 PM
To: flexradio@flex-radio.biz
Subject: Re: [Flexradio] 100 Watts on AM
Ross,
That control is not the wattage of the AM carrier. It is the
percentage of the
-radio.biz
Subject: Re: [Flexradio] 100 Watts on AM
Ross,
That control is not the wattage of the AM carrier. It is the
percentage of the fixed 25 watt AM carrier (see the tooltip by placing
your mouse cursor over the control box).So a value of 100 is
actually 25 watts of carrier. A value of 50
Ross,
That control is not the wattage of the AM carrier. It is the
percentage of the fixed 25 watt AM carrier (see the tooltip by placing
your mouse cursor over the control box).So a value of 100 is
actually 25 watts of carrier. A value of 50 is 12.5 watts of carrier.
Bert,
I am not
I noticed the 100 watts on AM the other day Burt. I'm running 2.2.3 and
just assumed that it happened somewhere along the revision line. My
temporary fix was to go to the transmit setup and reduce the AM carrier
level to 25 watts. I would not modulate AM at 100 watts carrier.
73 Ross K9COX
On 75 meters when I key up on AM I have 100 watts carrier power, when I
modulate there are positive peaks above that and normal negative peaks
Why?
Burt
___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listi
14 matches
Mail list logo
