From: "David Havel" 
Subject: RE: [drakelist] 20.8 MHz (30 Meter) T-4XC Crystal wanted


"David Havel"  made an utterence
to the drakelist gang
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Gary,

From your email below, are you saying that you can xmit. (in RCVR mode) with
only a crystal in the receiver, and without having one in the T-4XC?  Mine
doesn't seem to want to tune or load on 160 meters with the xtal installed
in only my R-4C.

Thanks in advance for clarification!

73,
Dave - NO3K



-----Original Message-----
From: owner-drakelist{at}www.zerobeat.net
[mailto:owner-drakelist{at}www.zerobeat.net] On Behalf Of Garey Barrell
Sent: Sunday, February 27, 2005 10:16 PM
To: Eric Webner; Drakelist
Subject: Re: [drakelist] 20.8 MHz (30 Meter) T-4XC Crystal wanted


Garey Barrell  made an utterence to the drakelist gang
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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 folks like to listen to CW at a somewhat lower frequency.

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
http://hr99.home.mindspring.com/R-4C_Servicez/>



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
>     it on 30 meters.  According to the manual, the 20.8 unit is the
>     only recommended crystal for use on this band.  If you have one
>     you'd like to sell, please email me what you're asking for it!
>
>     Thank you in advance & 73,
>
>     David Havel - NO3K
>
> ----------------------------------------------------------------------
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> Read only the mail you want - Yahoo! Mail SpamGuard 
>
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