From: Eric Webner 
Subject: RE: [drakelist] 20.8 MHz (30 Meter) T-4XC Crystal wanted

explicit range you cannot use it on, probably due to the spurs that Garey
referred to.
 
Eric
David Havel
<David.Havel{at}verizon.net>
wrote:


...which, I believe infers that you
should not use it between 10.1 through
10.150.
 
Correct?
 
73,
Dave -
NO3K


From:
owner-drakelist{at}www.zerobeat.net [mailto:owner-drakelist{at}www.zerobeat.net]
On Behalf Of Eric
WebnerSent: Monday, February 28, 2005 7:36
PMTo: k4oah{at}mindspring.com;
DrakelistSubject: Re: [drakelist] 20.8 MHz (30
Meter) T-4XC Crystal wanted

Garey,
 
The T-4XC manual indicates that if you use a 21.1 MHz crystal,
the usable freq is 10.25 - 10.5 MHz. The column that says "Do Not Use
Between" is blank.
 
I would like to add 30 meters and possibly 17 also, but it seems
to have a few caveats.
 
73,
 
Eric KA8FAN
Garey Barrell
<k4oah{at}mindspring.com> wrote:
Garey Barrell
made an utterence to the drakelist
gang----------------------------------------------------------------------Eric
-There is a very good reason for using the 20.8 MHz
crystal instead of the 21.1. There are several spurious outputs
in and around 10 MHz when using the 21.1. This is specified in
the T-4X(any) manual with "do not use" ranges for
certain crystals. Keep in mind that the PTO operates in and
around 5 MHz.....And yes, you can transceive on any
crystal you have in the receiver, but the same problems occur
with a 21.1 MHz crystal in the R-4(any). If you just want to
listen to 10.1 - 10.150 the 21.1 MHz crystal will work in the
receiver. But don't transceive using that crystal. Transceive
isn't all that satisfactory on CW anyway, since the offset is
around 900 Hz and most f!
! olks
 like to listen to CW at a somewhat lower frequency.73,
Garey - K4OAHAtlantaDrake C-Line Service
Manual<HTTP: R-4C_Servicez hr99.home.mindspring.com
/>Eric Webner
wrote:> I wonder if the 21.1 Mhz crystal would
work as well. It sure would be > a lot easier to operated
the vfo, since the band would start at 10.0 > Mhz instead
of 9.7 or whatever the manual says.> >
Can you experts tell me what it takes to transceive on accessory
> crystals? Can I get a crystal for the receiver, set the
T-4XC mode > switch to "RECEIVE" and be able to
transmit and receive on the 30 > meter
band?> > 73,>
> Eric KA8FAN>> */David
Havel /*
wrote:>> Hello
gang,>> I'm in search of a 20.8 MHz
crystal for my T-4XC in order to put> 
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