[Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Bill Henderson
Hi I already have the 250Hz, 400Hz and 2.7 KHz filters fitted to both receivers. I plan to add 2.1KHz or 1.8kHz filters some time I in the future. In the nearer future I intend adding the 2m module to my K3. Since this will be used for local traffic I understand that I need to add an FM filter

Re: [Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Don Wilhelm
Bill, You can use the FM filter to receive AM, but not for transmit. To transmit AM, you must have the 6 kHz filter, so you will have to sacrifice one filter. 73, Don W3FPR On 10/8/2010 9:11 AM, Bill Henderson wrote: Hi I already have the 250Hz, 400Hz and 2.7 KHz filters fitted to both

Re: [Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Bill Henderson
Don I thought that that might be the case. I can live without TX in AM (hi) Vy 73 Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-FM-Filter-for-AM-tp5614856p5614938.html Sent from the [K3] mailing list archive at Nabble.com.

Re: [Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Joe Subich, W4TV
On 10/8/2010 9:30 AM, Don Wilhelm wrote: You can use the FM filter to receive AM, but not for transmit. To transmit AM, you must have the 6 kHz filter, so you will have to sacrifice one filter. Repeating one of my complaints about the K3 there is no reason that the FM filter should

Re: [Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Bob Naumann
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Friday, October 08, 2010 11:07 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3: FM Filter for AM? On 10/8/2010 9:30 AM, Don Wilhelm wrote: You can use the FM filter to receive AM, but not for transmit. To transmit AM

Re: [Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Don Cunningham
I agree, Bob, and wouldn't 2.1 kc make our transmit signal even cleaner?? I'm afraid I don't see the status quo either. 73, Don, WB5HAK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Doug Faunt N6TQS +1-510-655-8604
In fact, 2.1 was one of the original possibilities for the TX filter and was removed. 73, doug From: Don Cunningham wb5...@martineer.net Date: Fri, 8 Oct 2010 11:31:04 -0500 I agree, Bob, and wouldn't 2.1 kc make our transmit signal even cleaner?? I'm afraid I don't see the status

Re: [Elecraft] K3: FM Filter for AM?

2010-10-08 Thread Guy Olinger K2AV
You will have to choose which filter is used ALL THE TIME for SSB TX. You COULD currently define the 2.1 filter as 2.7 and set an offset to center it properly. BUT it will not be cleaner as you suppose. The narrower filters have more envelope delay near the skirts, and that creates distortion