[Elecraft] K3 Filters for the 2nd receiver?
I plan to use a K3 primarily for DXing. I want the second receiver option so I can listen for clear spots and stations working the DX in split operations. For this usage, can you see any reasons to add additional filters to the second receiver? 73, Paul K5ESW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filters for the 2nd receiver?
If I understand what I think you are saying... The 2nd receiver is completely independent and doesn't use the filters (or anything else) in the primary receiver. Each receiver has its own dedicated roofing filters (up to five). You populate the filters in the 2nd receiver according to how you plan to use it (just as you do for the primary receiver). Like the primary receiver, the 2nd receiver will come equipped by default with the 2.7 kHz 5-pole roofing filter, and you can replace this filter with another and/or add additional filters. Bill W5WVO Paul Ferguson wrote: I plan to use a K3 primarily for DXing. I want the second receiver option so I can listen for clear spots and stations working the DX in split operations. For this usage, can you see any reasons to add additional filters to the second receiver? 73, Paul K5ESW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filters for the 2nd receiver?
Yes. You will want some type of ssb and cw filter IMHO. On 12/12/07 1:19 PM, Paul Ferguson [EMAIL PROTECTED] wrote: I plan to use a K3 primarily for DXing. I want the second receiver option so I can listen for clear spots and stations working the DX in split operations. For this usage, can you see any reasons to add additional filters to the second receiver? 73, Paul K5ESW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filters for the 2nd receiver?
I had the impression the 2nd receiver had no filters at all. I had intended to put in a 2.7k 1000 and 400 filters in the 2nd receiver. I also wanted to be able to operate FM and was going to put the FM filter in the 2nd receiver. Will this work? The main receiver was going to have the 200, 400, 1000, 1.8 and 2.7 filters. Mike W0MU On 12/12/07 2:05 PM, Bill W5WVO [EMAIL PROTECTED] wrote: If I understand what I think you are saying... The 2nd receiver is completely independent and doesn't use the filters (or anything else) in the primary receiver. Each receiver has its own dedicated roofing filters (up to five). You populate the filters in the 2nd receiver according to how you plan to use it (just as you do for the primary receiver). Like the primary receiver, the 2nd receiver will come equipped by default with the 2.7 kHz 5-pole roofing filter, and you can replace this filter with another and/or add additional filters. Bill W5WVO Paul Ferguson wrote: I plan to use a K3 primarily for DXing. I want the second receiver option so I can listen for clear spots and stations working the DX in split operations. For this usage, can you see any reasons to add additional filters to the second receiver? 73, Paul K5ESW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filters for the 2nd receiver?
Mike, To transmit FM you will need the FM filter in the main receiver (it will also be used for transmit). I would suggest that you re-examine your filters in the main receiver. If you will not operate digital modes, you can likely do without the 200 Hz filter. If the 200 Hz filter must stay, then I would suggest you eliminate the 1000 Hz filter unless you are a CW contest type that likes to listen with a wide receiver - during normal operating, your 1.8 kHz filter in conjunction with the DSP filtering should work just fine. OTOH, if you do not operate a lot of sideband contests, the 1.8 kHz filte could go and the 1000 Hz can stay. These are only my suggestions, choose your filters to match your operating preferences. The DSP will handle reduced bandwidths just fine until an offending S-9 +30 signal appears within the roofing filter bandpass. That will likely only occur during contests or other times of intense operating activities. With the 2nd receiver, one could always put the in-between filter widths there and switch to receiving with the 2nd receiver when the additional filtering is needed. In other words, the FM filter, the 2.7kHz, the 1000 Hz, 400 Hz and 200 Hz in the main receiver and 2.7kHz, 1.8 kHz, 1000, and either 400 or 200 in the 2nd receiver - or something like those combinations, it is all up to you. 73, Don W3FPR Mike Fatchett W0MU wrote: I had the impression the 2nd receiver had no filters at all. I had intended to put in a 2.7k 1000 and 400 filters in the 2nd receiver. I also wanted to be able to operate FM and was going to put the FM filter in the 2nd receiver. Will this work? The main receiver was going to have the 200, 400, 1000, 1.8 and 2.7 filters. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filters for the 2nd receiver?
I was afraid of that I want the rig to do it all HI! I can probably do without the FM in this rig then. I am into RTYY, PSK, CW and SSB contesting. Ok I have no life. Thanks for the insight. Mike On 12/12/07 4:26 PM, Don Wilhelm [EMAIL PROTECTED] wrote: Mike, To transmit FM you will need the FM filter in the main receiver (it will also be used for transmit). I would suggest that you re-examine your filters in the main receiver. If you will not operate digital modes, you can likely do without the 200 Hz filter. If the 200 Hz filter must stay, then I would suggest you eliminate the 1000 Hz filter unless you are a CW contest type that likes to listen with a wide receiver - during normal operating, your 1.8 kHz filter in conjunction with the DSP filtering should work just fine. OTOH, if you do not operate a lot of sideband contests, the 1.8 kHz filte could go and the 1000 Hz can stay. These are only my suggestions, choose your filters to match your operating preferences. The DSP will handle reduced bandwidths just fine until an offending S-9 +30 signal appears within the roofing filter bandpass. That will likely only occur during contests or other times of intense operating activities. With the 2nd receiver, one could always put the in-between filter widths there and switch to receiving with the 2nd receiver when the additional filtering is needed. In other words, the FM filter, the 2.7kHz, the 1000 Hz, 400 Hz and 200 Hz in the main receiver and 2.7kHz, 1.8 kHz, 1000, and either 400 or 200 in the 2nd receiver - or something like those combinations, it is all up to you. 73, Don W3FPR Mike Fatchett W0MU wrote: I had the impression the 2nd receiver had no filters at all. I had intended to put in a 2.7k 1000 and 400 filters in the 2nd receiver. I also wanted to be able to operate FM and was going to put the FM filter in the 2nd receiver. Will this work? The main receiver was going to have the 200, 400, 1000, 1.8 and 2.7 filters. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filters for the 2nd receiver?
My solution was to order just one $79 500 Hz CW filter for now. When the variable-bandwidth CW filter becomes available I will install it in the main receiver and move the 500-Hz filter to the second receiver (when it becomes available). So the main receiver lineup will be: - 0.4-0.8 variable CW - 1.5-2.2 variable SSB - 2.7 SSB (stock) - 6.0 AM - 15 FM Second receiver: - 0.5 CW - 2.7 SSB (stock) Seems like the most bang for the buck. Al N1AL On Wed, 2007-12-12 at 14:53, Mike Fatchett W0MU wrote: Yes. You will want some type of ssb and cw filter IMHO. On 12/12/07 1:19 PM, Paul Ferguson [EMAIL PROTECTED] wrote: I plan to use a K3 primarily for DXing. I want the second receiver option so I can listen for clear spots and stations working the DX in split operations. For this usage, can you see any reasons to add additional filters to the second receiver? 73, Paul K5ESW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
