Re: [Elecraft] FM Filter for AM?

2010-10-09 Thread Doug Alspaugh
-- From: "Wayne Burdick" Sent: Saturday, October 09, 2010 10:54 AM To: "Bob Naumann" Cc: Subject: Re: [Elecraft] FM Filter for AM? > Bob Naumann wrote: > >> Wayne, >> >> Am I correct in my

Re: [Elecraft] FM Filter for AM?

2010-10-09 Thread Bill Henderson
Hi Does this mean that I should not worry about the AM filter in the certain knowledge that I will, sooner or later, be able to transmit AM using the FM filter? If so let me chance my arm by asking how far away this change is (Hi). 73 Bill -- View this message in context: http://elecraft.365

Re: [Elecraft] FM Filter for AM?

2010-10-09 Thread Bob Naumann
net] On Behalf Of Wayne Burdick Sent: Saturday, October 09, 2010 9:54 AM To: Bob Naumann Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] FM Filter for AM? Bob Naumann wrote: > Wayne, > > Am I correct in my understanding that the reason the 2.1 is not > currently > allowed is

Re: [Elecraft] FM Filter for AM?

2010-10-09 Thread Wayne Burdick
Bob Naumann wrote: > Wayne, > > Am I correct in my understanding that the reason the 2.1 is not > currently > allowed is simply a firmware issue? Yes. As usual we have a long list of customer requests that we're working on. This is one of them (along with allowing the FM filter to be used f

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Bob Naumann
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Friday, October 08, 2010 11:56 AM To: Bob Naumann Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] FM Filter for AM? Bob, I could change all of the transmit filter bandwidth restrictions in firmware, and this is on my

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Ken Kopp
Thanks for clarifying the maximum achievable transmitted bandwidth issue, Joe. I was aware of this, but it had retreated to the nether regions of my old poop's brain. (;-) 73! Ken Kopp - K0PP __ Elecraft mailing list Home: http://m

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Joe Subich, W4TV
> Similarly, I assume a 6 kHz filter for TX in AM and ESSB modes. That's a problematic assumption. If one has 2.7 or 2.8 plus a narrow SSB filter (1.5/1.8) a normal CW/RTTY filter and a narrow CW filter there is simply no way to support both FM (4.5 KHz DSB AM RX) and normal AM filters. Since

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Joe Subich, W4TV
> The present filter imitations serve to protect some of us > from both unintended and intentional excessive bandwidth. AM/ESSB/SSB bandwidth is determined by the DSP modulation not the roofing filter bandwidth. This can easily be seen in the use of the 6 KHz filter for ESSB where the occupied

[Elecraft] FM Filter for AM?

2010-10-08 Thread Ken Kopp
If this change is made, we should be prepared for complaints about Elecraft transmitters being "wide", "splattering", etc. The present filter imitations serve to protect some of us from both unintended and intentional excessive bandwidth. Elecraft's excellent reputation for "clean" transmitter

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Jan Erik Holm
Yes please do!! Jim On 2010-10-08 18:56, Wayne Burdick wrote: > Bob, > > I could change all of the transmit filter bandwidth restrictions in > firmware, and this is on my list. But it would be a complex change, > and I have to weigh it against many competing firmware change > requests. I

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Don Cunningham
Wayne, Would you mind answering the question of transmit purity. Would the change from 2.8 to 2.1 make our transmissions any "cleaner"?? If not, it would not be worth all the work you would need to do. Thanks to listening to our "requests". That is what makes Elecraft so good, other manufact

Re: [Elecraft] FM Filter for AM?

2010-10-08 Thread Wayne Burdick
Bob, I could change all of the transmit filter bandwidth restrictions in firmware, and this is on my list. But it would be a complex change, and I have to weigh it against many competing firmware change requests. I assume the presence of a 2.7 or 2.8 kHz filter in all of the frequency-sett

Re: [Elecraft] FM filter for AM

2010-05-26 Thread Joe Subich, W4TV
Yes, if you tell the K3 that the FM filter is 6 KHz and not 13 KHz. 73, ... Joe, W4TV On 5/26/2010 1:51 PM, Ruben Navarro Huedo wrote: > Hello friends: > At this moment i don't own AM or FM filter. > If i install FM filter can i use it for AM? > > Thank's a lot. > __

Re: [Elecraft] FM filter for AM

2010-05-26 Thread Don Wilhelm
Ruben, Receive yes - transmit NO. I have mine set that way - I have no desire to transmit AM. 73, Don W3FPR Ruben Navarro Huedo wrote: > Hello friends: > At this moment i don't own AM or FM filter. > If i install FM filter can i use it for AM? > > Thank's a lot. > > __

[Elecraft] FM filter for AM

2010-05-26 Thread Ruben Navarro Huedo
Hello friends: At this moment i don't own AM or FM filter. If i install FM filter can i use it for AM? Thank's a lot. -- Rubén Navarro Huedo - EA5BZ http://www.palotes.com __ Elecraft mailing list Home: http://mailman.qth.net/mailma