Topband: Xtal Filter

[Jim F.]

The Rockmite QRPp transceiver kit by Small Wonder Labs is crystal controlled on a single frequency and uses a single crystal ahead of the receiver for filtering. 

Many thousands have been sold and are on the air and there is also a  Rockmite Yahoo
group.   Google Rockmite.
 
 
jim / W1FMR
 
 

--- On Tue, 1/3/12, Tim Duffy K3LR <k3lr at k3lr.com> wrote:


From: Tim Duffy K3LR <k3lr at k3lr.com>
Subject: Re: Topband: Xtal Filter
To: "'Anton Moehammad'" <moehanton at yahoo.com>, topband at contesting.com
Date: Tuesday, January 3, 2012, 9:16 PM


Hello Anton!

Here is a link to a 5 KHz 160 meter RX filter y INRAD. This may be what you are asking about?

http://www.inrad.net/product.php?productid=231&cat=146&page=1

73 and Happy New Year,
Tim K3LR

-----Original Message-----
From: topband-bounces at contesting.com [mailto:topband-bounces at contesting.com] On Behalf Of Anton Moehammad
Sent: Tuesday, January 03, 2012 7:39 PM
To: topband at contesting.com
Subject: Topband: Xtal Filter

Hi everybody,

I believe there is a 1825 KHZ xtal filter sell somewhere, can any body share their experience about put a narrow XTAL filter in front of their recv ? (CW works only)



Ir Moeh AntonHendra
Jambon Tengah no 290 RT1/RW3
Magelang 56121
Indonesia
Mobile : +6285292611160
email   : moehanton at yahoo.com
Get a signature like this.  CLICK HERE.    
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK

_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK