The best monitor for output and modulation is an oscilloscope. With it,
you can see carrier level changes and overmodulation, both upward and
downward. The 100 watt linear will start to clip upward modulation peaks
a bit above 100 watts (possibly set by ALC driven by output power peaks.
If downgoing modulation cuts off the carrier, that also makes splatter
and when detected in the AM receiver sounds just like clipping because
the audio envelope IS clipped.
73, Jerry, K0CQ
On 6/11/2010 11:00 AM, Martin Sole wrote:
Not sure what the power 'should be', but a transmitter with a pa rated for
100 watts pep should give about 25 watts carrier when the ptt is pressed. 25
watts of carrier plus 100% modulation would be 100 watts pep, the maximum
the pa is capable of.
Martin, HS0ZED
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of Rsoifer@aol.com
Sent: 11 June 2010 22:38
To: tentec@contesting.com
Subject: Re: [TenTec] Orion 2 Firmware 2.044A Released
John,
Funny thing about that. With the mode set to AM, when I hit Tune and then
Pwr I get full output like you did, but if I hit the PTT button instead, all
I get is 11 watts on the Bird. It worked fine with 2.041XT.
73 Ray
In a message dated 6/11/2010 3:22:43 P.M. GMT Standard Time,
wb4qda@yahoo.com writes:
Ray
I just tested my O2 on AM max output was 80 warrs on an Alpha watt meter
also about the same reading on a LP-100A watt meter with the Power set to
100% using the new fearmware version 2.044A
73
John wb4qda
----- Original Message ----
From: "Rsoifer@aol.com"<Rsoifer@aol.com>
To: ronc@sonic.net; w5pny@arrl.net; tentec@contesting.com
Sent: Fri, June 11, 2010 8:36:18 AM
Subject: Re: [TenTec] Orion 2 Firmware 2.044A Released
Ron,
The NR problem has been fixed (!) but the old low-output problem on AM is
back. Mine measures 11 watts carrier power, max. It worked fine with
2.041XT.
73 Ray W2RS
In a message dated 6/11/2010 2:17:05 A.M. GMT Standard Time, ronc@sonic.net
writes:
I have adjusted the "Wish List" for the Orion II to reflect the newest
version of the firmware. It's at www.N6IE.com
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "Harry G McGavran Jr"<w5pny@arrl.net>
To:<tentec@contesting.com>
Sent: Thursday, June 10, 2010 5:50 PM
Subject: Re: [TenTec] Orion 2 Firmware 2.044A Released
With this one I can set the side-tone level all the way
up to 65 before the pops begin, and by the time one
gets past 80 on towards 99 the distortion on the
side-tone is still really bad -- BUT -- for me at
least, levels are 50-60 are all I need and that is
now distortion free, at least with a 610 Hz sidetone
which is the only one I tested or use. I also am
using the speaker and not headphones for this.
Since one gets the side-tone every time the SPOT
button is used, the side-tone distortion was really
objectionable with 2.043B.
The NR seems better too, but most all the time I don't
really need it -- and it's nice not to have artifacts that
sound like NR action on the side-tone which the side-tone
is set to 50-60.
There are a few CAT wierdnesses here and there, but the reliability
of sending a strings of "*" commands seems better.
Unless something else crops up, I think I can live with this
release...
73 --
Harry, W5PNY
--
Harry G. McGavran, Jr.
E-mail: w5pny@arrl.net
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