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

[D C *Mac* Macdonald]

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 




> From: sm4rna at telia.com 
> To: icom at mailman.qth.net 
> Subject: Re: [ICOM] Icom 7200 at Dayton Big Disappointment??? 
> Date: Wed, 21 May 2008 23:06:20 +0200 
> 
> In our bandplan 6kHz should be enough for FM on 10m, but most US statiuon we 
> here over here is wider than that. 
> 
> de Anders 
> 
> 
> ----- Original Message ----- 
> From: "John Geiger"  
> To: "ICOM Reflector"  
> Sent: Wednesday, May 21, 2008 10:47 PM 
> Subject: Re: [ICOM] Icom 7200 at Dayton Big Disappointment??? 
> 
> 
>>A 6khz roofing filter would sure be nice. That should give it some decent 
>> close in dynamic range performance. 
>> 
>> 73s John AA5JG 
>> 
>> ----- Original Message ----- 
>> From: "D C *Mac* Macdonald"  
>> To: "ICOM Reflector"  
>> Sent: Wednesday, May 21, 2008 8:42 PM 
>> Subject: RE: [ICOM] Icom 7200 at Dayton Big Disappointment??? 
>> 
>> 
>> 
>> I believe Adam alluded to a 6 kHz roofing filter. 
>> That would NOT be software defined, if I properly 
>> understand what a roofing filter does. A 6 kHz 
>> roofing filter would preclude "normal" FM which, 
>> as used in North America, would require a 15 kHz 
>> roofing filter and would result in greatly reduced 
>> performance with SSB, CW, and narrow data 
>> modes. If the 7200 turns out to be a transceiver 
>> with greatly improved HF performance at price 
>> which is reduced from what is currently offered, 
>> I say BRAVO indeed! 
>> 
>> 73 - Mac, K2GKK/5 
>> Oklahoma City, OK