After giving this some thought I wonder what HF rig would you use with
20 kHz bandwidth and what mode? What design criteria would be needed
to use this, especially in J3D?
Jim
WA0LYK
--- In digitalradio@yahoogroups.com, John B. Stephensen [EMAIL PROTECTED]
wrote:
If I'm at the low end of an
.
73,
John
KD6OZH
- Original Message -
From: jgorman01
To: digitalradio@yahoogroups.com
Sent: Thursday, May 03, 2007 13:04 UTC
Subject: [digitalradio] Re: FCC regulations (was Digi Voice)
After giving this some thought I wonder what HF rig would you use with
20 kHz
meters.
73,
John
KD6OZH
- Original Message -
From: jgorman01
To: digitalradio@yahoogroups.com
Sent: Thursday, May 03, 2007 13:04 UTC
Subject: [digitalradio] Re: FCC regulations (was Digi Voice)
After giving this some thought I wonder what HF rig would you
known now.
73,
John
KD6OZH
- Original Message -
From: jgorman01
To: digitalradio@yahoogroups.com
Sent: Thursday, May 03, 2007 20:47 UTC
Subject: [digitalradio] Re: FCC regulations (was Digi Voice)
Shifting the bfo in a crystal filter rig does not change the
bandwidth
Receivers may have this bandwidth, but there are no generally
available transmitters from the big manufacturers that I know of that
allow this bandwidth.
While the op-amps may be linear to greater than 20 kHz, they must also
be have a flat response curve. The ouputs may also be pretty linear
as
