[ICOM] Icom 7200 at Dayton Big Disappointment???

[D C *Mac* Macdonald]

Again, if my memory hasn't failed me since I studied this 
stuff, +/- 2.5 kHz deviation would require a bandwidth of 
11 kHz and +/- 3 kHz deviation would require 12 kHz. 
Both of these would be too wide to be well accommodated 
through a 6 kHz roofing filter without serious distortion. 

73 - Mac, K2GKK/5
Oklahoma City, OK



> From: sm4rna at telia.com 
> To: icom at mailman.qth.net 
> Subject: Re: [ICOM] Icom 7200 at Dayton Big Disappointment??? 
> Date: Thu, 22 May 2008 03:51:05 +0200 
> 
> Yes, but on 10m -+2,5kHz should be used, and is on i.e. the DR-03T  
> (http://www.alinco.com/Products/DR-03_06/) and the FT-8900. Older radios 
> like the IC-735 or IC-725 is to wide both in RX and TX. 
> 
> de Anders 
> 
> 
> ----- Original Message ----- 
> From: "D C *Mac* Macdonald"  
> To: "ICOM Reflector"  
> Sent: Thursday, May 22, 2008 3:19 AM 
> Subject: RE: [ICOM] Icom 7200 at Dayton Big Disappointment??? 
> 
> 
> 
> 5 khZ (+/-) deviation requires a 16 kHz bandwidth, 
> if I remember correctly, due to the sidebands that 
> are generated out beyond the expected 10 kHz 
> bandwidth. 
> 
> 73 - Mac, K2GKK/5 
> Oklahoma City, OK