From: Garey Barrell 
Subject: Re: [drakelist] TR 7 Am filter substitute


Garey Barrell  made an utterence to the drakelist gang
----------------------------------------------------------------------
Mike -

It works just fine.  Receiver bandwidth is then primarily limited by the 
4 pole, 8 kHz wide ceramic filter in the Up-Converter, which is fine for 
AM reception.  The "real" AM filters are either 6 or 8 kHz wide, most 
likely 8 pole, and so will have steeper skirt selectivity.

If you need more selectivity to cope with interfering signals, you can 
always switch to USB or LSB and zero-beat the carrier.

73, Garey - K4OAH
Atlanta


Mike Williams wrote:

> How does that 3 resistor pi network work in lieu of the correct 6 kc 
> AM filter for the TR 7?  Any input appreciated...
>  
> Tnx,
>  
> Mike AK7P


----------------------------------------------------------------------
On Behalf of Garey Barrell 
Submissions:        drakelist{at}www.zerobeat.net
Unsubscribe:        majordomo{at}www.zerobeat.net - unsubscribe drakelist in body
Hopelessly Lost:    majordomo{at}www.zerobeat.net - help in body of message
Zerobeat Web Page:  http://www.zerobeat.net
Brought to you courtesy of TLCHost.net  http://www.tlchost.net/
----------------------------------------------------------------------

---