Re: [Elecraft] K3 Filters

There was a time when one could email Elecraft support with the K3 serial number and they would send the factory Config file. Probably not 100% of the solution but it would be a start. 73, Brian, K0DTJ > On Oct 17, 2023, at 09:05, W3FPR wrote: > > Jim, > > It is doubtful that will work

Re: [Elecraft] K3 Filters

Jim, It is doubtful that will work if the K3 has been set to factory defaults by EEINIT. 73, Don W3FPR On 10/17/2023 11:59 AM, Jim McCook wrote: Dave, Open the K3 Utility and click on Calibration.  Scroll down to Configure Crystal Filters.  The top line shows the various bandwidths of

Re: [Elecraft] K3 Filters

Dave, Open the K3 Utility and click on Calibration.  Scroll down to Configure Crystal Filters.  The top line shows the various bandwidths of the installed filters.  You can see the big picture there with the checked boxes. Jim W6YA

Re: [Elecraft] K3 Filters

Dave, Remove the top cover - there should be a sticker either on the bottom of the top cover or on the top of the sub-RX showing the filters installed and the offsets if they are not the 8 pole filters. If the sticker is not present (or is incorrect), then yes, you will have to remove the

Re: [Elecraft] K3 Filters

Hi Dave, Without a saved CONFIG file, I don't think there is a way to retrieve the filter settings directly from the K3. Have you tried examining the filter settings for any information that is stored in a CONFIG file? The K3 Utility permits viewing and editing stored crystal filter settings.

[Elecraft] K3 Filters

I recently purchased another K3 that I believe was Factory Reset prior to the sale. Is there a way to determine which, if any, optional filters are installed without opening it up? It has the 2 meter xvtr and 2nd receiver installed and I’d prefer not to uninstall things. Tnx es 73, Dave N8AG 

[Elecraft] K3 - filters for trade

I have several each of 1.8hHz (KFL3A-1.8K) and 500Hz (KFL3A-500). I would like to trade these for 250Hz (KFL3A-250) and 2.1kHz (KFLA-2.1K) filters. Any takers? Please reply off list greg/na8v __ Elecraft mailing list Home:

Re: [Elecraft] K3 Filters for sale

Filters are spoken for… 73 Jim K8JK > On Oct 14, 2019, at 5:17 PM, Roberta Estes via Elecraft > wrote: > > Elecraft K3 filters surplus to my needs > > KFL3A-2.8K (Elecraft Branded Inrad filter) $80 shipped USPS > > KFL3A-6K (Elecraft Branded Inrad Filter) $80 sh

[Elecraft] K3 Filters for sale

Elecraft K3 filters surplus to my needs KFL3A-2.8K (Elecraft Branded Inrad filter) $80 shipped USPS KFL3A-6K (Elecraft Branded Inrad Filter) $80 shipped USPS KFL3B-FM (Elecraft Branded Inrad filter) $80 shipped USPS Shipping included USPS Us locations only. Paypal is acceptable as long as I

[Elecraft] K3 filters sold

Thanks for the responses (and to Eric and Wayne for the bandwidth). Ken K6MR From: Ken K6MR Sent: Monday, October 30, 2017 5:16:38 PM To: elecraft@mailman.qth.net Subject: K3 filters available I have some K3 filters I don’t need: (2) of the

Re: [Elecraft] K3 filters available

2.1K is sold. (Tnx Terry N7BDL) Ken K6MR From: Ken K6MR<mailto:k...@outlook.com> Sent: Monday, October 30, 2017 17:17 To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: [Elecraft] K3 filters available I have some K3 filters I don’t need: (2) of the KFL3A-200

Re: [Elecraft] K3 filters available

Hi Ken, I was just looking for the 500hz and 8 pole. Mike -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

[Elecraft] K3 filters available

I have some K3 filters I don’t need: (2) of the KFL3A-200 Fc = -0.98 and -0.94 (1) of the KFL3A-2.1K $75 each shipped CONUS. Paypal preferred. Ken K6MR k6mr -at- outlook.com __ Elecraft mailing list Home:

[Elecraft] K3 Filters for sale

I have 2 KFL3A 250 filters for sale. Bought new never used and in original packaging. Both are 8 pole Inrad. Will sell both for $325 and I will ship. Glenn K5ZE Virus-free. www.avast.com

[Elecraft] K3 filters for sale

I have 2 each (matching pairs) of the following Elecraft K3 filters in as-new condition: KFL3A-1.8K 1.8KHz 8-pole KFL3A-2.8K 2.8 kHz 8-pole KFL3A-6K 6KHz AM / ESSB, 8-pole Price is $115 for each filter plus $5 priority mail shipping per order. Preference will be given to those wanting

Re: [Elecraft] K3 Filters for digital work

Dave, I have 200 Hz and 400 Hz filters in my K3. My K3 copies RTTY fine through the 200 Hz filter. That being said, I normally use the 400 Hz filter unless the band is crammed with signals during a contest. The 200 Hz filter also reduces a the apparent signal to noise ratio between my ears

Re: [Elecraft] K3 Filters for digital work

My K3 copies RTTY fine through the 200 Hz filter. This is much like the old ads I worked 150 countries with my Gotham vertical ... When one tries to pass a FSK signal through a too narrow filter it doesn't just stop working. However, the tight skirts of the filter cause the energy in the

Re: [Elecraft] K3 Filters for digital work

On 11/29/2013 6:25 AM, Joe Subich, W4TV wrote: My K3 copies RTTY fine through the 200 Hz filter. This is much like the old ads I worked 150 countries with my Gotham vertical ... When one tries to pass a FSK signal through a too narrow filter it doesn't just stop working. However, the tight

Re: [Elecraft] K3 Filters for digital work

My first thought on seeing that was If that filter is such a great idea, wouldn't it be built into the RTTY demodulator to begin with? 73, Carl WS7L On Friday, November 29, 2013, Jim Brown wrote: Thus, I was quite wary of using the double humped response provided by the K3.

[Elecraft] K3 Filters for digital work

Which two of the 200/250/400 and 500 hz filters are best for digital use, primarily RTTY, both contests and dx. I understand that for JT-65 and PSK the standard ssb filter, or even the AM filter is useable. I am concerned that the 200 hz might be too narrow for RTTY. I work some CW but

Re: [Elecraft] K3 Filters for digital work

I am concerned that the 200 hz might be too narrow for RTTY. The 200 Hz filter is too narrow (mine measure about 190 Hz at -6dB). The 250 Hz filter - nominally 370 Hz at -6dB - is a good match to the minimum necessary bandwidth for MMTTY, 2-Tone, etc. to function well (particularly if the DSP

Re: [Elecraft] K3 Filters for digital work

I have a 250 Hz filter I use for PSK and RTTY. It helps when there is a strong nearby station that overloads the AtoD converter between the K3 and my computer. During a RTTY contest, I found it helped, but the dual frequency DSP RTTY filter was more than enough for most contacts. When I use

Re: [Elecraft] K3 Filters for digital work

I work quite a bit of RTTY and have 223 DXCC using only the stock 2k7Hz filter squeezed down to 2k0 with DSP for general tuning and running the split channel on a DXped. The 500hz five pole is used for the DX station and if I'm handing out a few points in an RTTY contest and need to suppress

Re: [Elecraft] K3 Filters for digital work

IMHO, RTTY is like AM -- a classic mode which uses more bandwidth than necessary, but is nice to keep around for nostalgia and to relive history. RTTY is not like AM in using more bandwidth than necessary. *ANY* FSK signal will have a minimum bandwidth (as defined by ITU) of (1.2 * shift +

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Bob, On 10/8/2013 10:28 AM, Bob wrote: Hi Joe, I disagree with your adamant public statement as the -10 dB points even with the filter center shifted up to 2000 Hz are at 300 Hz and 3800 Hz -- That's 3500 Hz edge to edge, not 4000. I believe your measurements are incorrect. Using an XG3

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

I wonder if someone who has significant WSJT-X experience would like to pontificate of the real benefit of squeezing out another KHz of bandwidth out? It seems to me on HF one is simply inviting in more signals which can potentially de-sense the RX. That wipes out the benefit of the weak

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

I wonder if someone who has significant WSJT-X experience would like to pontificate of the real benefit of squeezing out another KHz of bandwidth out? Certainly no expert here, but the slightly wider bandwidth does allow a WSJT-X user to copy the full suggested sub-bands for both JT65 and JT9 at

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

On Tue, Oct 8, 2013 at 9:35 AM, Bob wb4...@gmail.com wrote: But it isn't magic, just applied mathematics. To most of us, that is considered magic! Frank KG6EYC -- CW: NAQCC #6554 | SKCC #10435 | FISTS #16155 | SOC #1038 | FPQRP #3186 Digital: FHC #4224 | 30MDG #6370 | DMC #5698 Gear: K3

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

It seems to me on HF one is simply inviting in more signals which can potentially de-sense the RX. That wipes out the benefit of the weak signal mode. I really doubt these band segment is devoid of users of different high power modes. Yes and no ... there are occasional issues with a high

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Hi Thanks for the reply Yes I can transmit using the split options. For 2 reasons I would like different approach with a wideband TX. First of all I am interfacing through HRD. That way the split are not implemented to my understanding. Then I really like to know exactly where i transmit.

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

-dk.net To: elecraft@mailman.qth.net Sent: Monday, October 07, 2013 10:11 PM Subject: Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF Hi Thanks for the reply Yes I can transmit using the split options. For 2 reasons I would like different approach with a wideband TX. First of all I am

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Yes I can transmit using the split options. For 2 reasons I would like different approach with a wideband TX. Unfortunately the K3 *can not* do wideband TX ... the DSP modulator is limited to 200 - 2800 Hz when in DATA mode. There is no alternative as ESSB modulation is not supported in DATA

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Just be aware that current DSP firmware in the K3 limits the receive bandwidth to something around 3400 Hz. So even if you have a wider filter, like the 6 KHz AM filter, you will not be able to utilize the full 4 KHz bandwidth of WSJT-X for JT65/MT9 modes. Lyle is aware of this issue and it is

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

On 10/7/2013 4:39 PM, Bob wrote: Just be aware that current DSP firmware in the K3 limits the receive bandwidth to something around 3400 Hz. So even if you have a wider filter, like the 6 KHz AM filter, you will not be able to utilize the full 4 KHz bandwidth of WSJT-X for JT65/MT9 modes.

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

m...@the-jensen-dk.net To: elecraft@mailman.qth.net Sent: Monday, October 07, 2013 10:11 PM Subject: Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Absolutely *not* true ... I regularly receive 200 to 2400 Hz in DATA A with the FM (or AM) filter. Correction ... 200 to 4200 Hz 73, ... Joe, W4TV On 10/7/2013 4:51 PM, Joe Subich, W4TV wrote: On 10/7/2013 4:39 PM, Bob wrote: Just be aware that current DSP firmware in the K3 limits

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

I believe that figure of 3400 Hz is the AUDIO bandwidth which is equivalent to an AM bandwidth twice that, or 6.8 kHz. If I am correct, then you can most certainly take advantage of your 6 kHz AM filter which will limit your broadcast audio bandwidth to 3.0 kHz. The 15 kHz filter will get you

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

If I am correct, then you can most certainly take advantage of your 6 kHz AM filter which will limit your broadcast audio bandwidth to 3.0 kHz. That only applies in AM transmit because of the double sideband nature of AM. If you use the 6 KHZ filter for SSB/ESSB/DATA receive, the entire

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

BUT, The filter that must be specified for DATA mode TX is the 2.7 (or 2.8) kHz filter. You cannot use the wider filters for DATA mode transmit - the firmware prevents it (unless you lie to the K3 about which filter is which width). You can use a wider filter for receive, but that does not

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Hi I am right now using this exact setup with WSJTX. I do get the about 400Hz to 4200 on the waterfall, but TX are an issue. As i guess the K3 transmit through the 2,8 Khz. filter when ever i try to work a JT9 QSO above 3,0 Khz on the waterfall i do not see any audio output. I have been

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

I don't have a solution for wideband transmit (since I don't own a K3) but there is a simple fix: Run split. That way, the software will keep the transmit close to 1500 Hz by offsetting the QRG automatically. You can use the full receive bandwidth and the software will take care of keeping

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

not sure what your TX problem is Michael? I am running WSJTX v1.2.1, r3587 I am using the K3's AM filter for RX so I can run WSJTX in dual mode I am running WSJTX using WSJTX's CAT through DXLabs Commander I just tested my TX all the way from 200 up through 4400 and I can tx with the full

[Elecraft] [K3] Filters for mixed JT65 and JT9 HF

I am considering purchase of a K3 (I own a K2). One application is the new mixed JT65-JT9 HF mode. Possible accessories are: -KFL3A-6K 6 kHz AM / ESSB, 8-pole filter (to allow full band mixed waterfall) -KTCXO3-1 TCXO (0.1 ppm typ) High Stability Ref. Osc. (to provide stability especially as

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

I would defiantly add the AM filter, works great for dual JT65 + JT9 wf I do not have or need the TCXO, the stock K3 works fine for stability the timing with a pgm like NTP is more of a key factor for QSO's ymmv On 9/14/2013 10:10 AM, dberkley wrote: I am considering purchase of a K3 (I own a

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Agree with Sam fully. I have the AM filter and currently work both modes easily. I do not have the TXCO, however it's on my future upgrade list. On Saturday, September 14, 2013, Sam Morgan wrote: I would defiantly add the AM filter, works great for dual JT65 + JT9 wf I do not have or need

Re: [Elecraft] [K3] Filters for mixed JT65 and JT9 HF

Sam's advice is correct ... however, the FM filter is a suitable alternative to the AM filter if you plan to do/try FM on the top end of 10 Meters, 6 meters or install the internal 2 m transverter at some point. Either the FM or AM filters will provide a 4 KHz wide waterfall (200 - 4200 Hz)

Re: [Elecraft] K3 Filters For Sale UK/Europe

Bit of a long shot ! just wondered if you still have the filters ? Chris -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Filters-For-Sale-UK-Europe-tp7377145p7567499.html Sent from the Elecraft mailing list archive at Nabble.com.

[Elecraft] K3 Filters (again???!!) - Many Thanks

Hi, Many thanks to all who responded to my query about which filters to purchase for WJST modes. The replies were varied and all were based on sound argument - ie what worked best for that particular operator. The consensus of opinion boiled down to just get the basic filter, see how you get on

Re: [Elecraft] K3 Filters (again???!!) - Many Thanks

Peter, The K3 filters are quite easy to install later - *unless* you have the KRX3 installed. If you are considering the subRX as part of your order, then I suggest you do not install the subRX until you have gotten a handle on the filters that you will want. Install those filters and then

Re: [Elecraft] K3 Filters (again???!!) - Many Thanks

Wilhelm Sent: Sunday, December 16, 2012 5:55 PM To: PETER HUTCHISON Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Filters (again???!!) - Many Thanks Peter, The K3 filters are quite easy to install later - *unless* you have the KRX3 installed. If you are considering the subRX as part of your

[Elecraft] K3 Filters (again???!!)

I appreciate that this is somewhat of a thorny / subjective issue but a search of the archives actually revealed very little in the way of useful information.   I'm in the throes of putting together an order for a K3 kit after being given the appropriate financial go-ahead. However, the issue of

Re: [Elecraft] K3 Filters (again???!!)

Unless you are working in a contest situation, or when there are nearby strong signals, you can use the bandwidth filter in the DSP for most situations. The exceptions are: You need something wider than the required 2.7KHz/2.8KHz filter -- e.g FM operation. In this case, get the 13KHz FM

[Elecraft] K3 Filters For Sale UK/Europe

KFLA3A-2.1K 2.1kHz filter and KFLA3A-1.8K 1.8kHz filter, boxed. £80 each. Free postage within UK, £5 within Europe. Contact Paul M0CVX paul.bradbe...@ntlworld.com 73 Paul __ Elecraft mailing list Home:

[Elecraft] k3 filters and kx3

Can the K3 roofing filters be used in KX3 ? Adi 2E0TTX On 12/12/2011 21:22, Jim Miller wrote: Poor choice of words: first I fell into the balun habit rather than CM choke on the first usage. Second: bifilar wound CM choke would have been a better description for the alternative mentioned.

Re: [Elecraft] k3 filters and kx3

No, the KX3 roofing filter module is completely different. It works at baseband frequencies, rather than the 8+ MHz IF that the K3 uses. You will not be able to use K3 filters in the KX3. Bruce, N1RX Can the K3 roofing filters be used in KX3 ? Adi 2E0TTX

Re: [Elecraft] k3 filters and kx3

The Elecraft KX3 architects should weigh in on this topic - a simplified block diagram would be helpful. The KX3 roofing filter is likely a analogue filter realized with precision op amps and operating at the KX3 low-frequency IF (11 KHz?) - not baseband. The roofing filter is applied prior to

[Elecraft] k3 filters and kx3

Technically true, Terry. I perhaps oversimplified my response to the inquiry. Baseband can mean different things to different people. However, the answer to the question remains correct. - No, you cannot use the K3 filters in the KX3. I will leave further amplification to Wayne or Eric. 73,

Re: [Elecraft] k3 filters and kx3

order. Just waiting to hear the opening bugle! the horses are at the starting gate. 73, Ed - KL7UW -- Message: 38 Date: Wed, 14 Dec 2011 08:51:15 -0500 From: Terry Posey tpo...@nettally.com Subject: Re: [Elecraft] k3 filters and kx3 To: 'Bruce Beford' bruce.bef

[Elecraft] K3 Filters For Sale

I have the following filters for sale. Please respond off the list. KFL3A-6K8-pole 6 kHz filter$85 KFL3A-2.7K5-pole 2.7khz filers$50 I will ship CONUS. Larry, WA9MAG wa9...@ameritech.net __

[Elecraft] K3 filters, changed ideas

To all whom responded to my appeal for selling the K3 filters, thanks for the replys, and I appreciate the interest. I made a change of plans after some consideration, and will take them to my other QTH, well inland, for another project. Thanks to all, 73's Gil WA5YKK

[Elecraft] K3: Filters for sale (200, 400)

Excess to my needs: KFL3A-200 (5-pole, 200 Hz), $70 includes U.S. shipping KFL3A-400 (8-pole, 400 Hz), $110 includes U.S. shipping Flawless condition, bought them new 6 months ago PayPal Thanks, --Andrew, NV1B __ Elecraft mailing

Re: [Elecraft] K3: Filters for sale (200, 400)

KFL3A-200 and KFL3A-400 have been sold. Andrew, NV1B __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by:

[Elecraft] K3 Filters looking for.

I am going to add some filters to my K3, need to pair up some for the sub which I have in the main rx. Anyone have a 400hz 8 pole for sale, or a 200hz 5 pole? May consider a 1KHZ 8 pole also. Thought I would ask before ordering a couple. Thanks 73 Merv KH7C

[Elecraft] Wanted: Options for Elecraft K3 (Filters, ATU...)

Hello! I am looking for some options for my K3. KAT3 Tuner, KBPF3 General Coverage RX Bandpass Module, KDVR3 Digital Voice Recorder, KTCXO3-1 TCXO, KXV3A RX Ant., IF Out and Xverter Interface (last Version), KFL3A-2.8K 2.8 kHz, 8-pole filter, KFL3A-400 400 Hz, narrow 8-pole filter,

[Elecraft] Wanted: Options for Elecraft K3 (Filters, ATU...)

Hello! I am looking for some options for my K3. KAT3 Tuner, KBPF3 General Coverage RX Bandpass Module, KDVR3 Digital Voice Recorder, KTCXO3-1 TCXO, KXV3A RX Ant., IF Out and Xverter Interface (last Version), KFL3A-2.8K 2.8 kHz, 8-pole filter, KFL3A-400 400 Hz, narrow 8-pole filter,

[Elecraft] K3 filters

...big difference between the 200 (actually 224) and the 250 (actually 370) and very little diffference between the 250 and the 400 (actually 435). Stop, you're breakin' my heart! I've got 2.8, 2.1, 1.0, -- , .250 in the main RX and 2.7, -- , -- , .50, -- in the Sub. ('--' = no filter) I

[Elecraft] K3 Filters

Any one have any problems with 5 pole 500Hz filters. I have one for each recvr and cannot hear anything? 73! Tomy Ivan kf7gc ATEN, Arizona Traffic and Emergency Net Most active NTS Traffic Net in Arizona Our Web Site www.atenaz.net Get back to Ham Radio Basics! Join a First Class Traffic Net

Re: [Elecraft] K3 Filters

[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tomy Sent: Sunday, March 15, 2009 10:06 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 Filters Any one have any problems with 5 pole 500Hz filters. I have one for each recvr and cannot hear anything? 73! Tomy Ivan kf7gc ATEN, Arizona Traffic

[Elecraft] K3 Filters and dual bandpass tuning

Question for the experienced K3 owners... I'm planning a purchase in the very near future and want a clarification on the roofing filters and use of passband tuning with the K3. I think I understand from reading the forum that the K3 automatically selects the filter to match the width of the

Re: [Elecraft] K3 Filters and dual bandpass tuning

Andrew, The answer is yes to all of that, except for minor points related to your interpretation. For clarification, there are two considerations - the first is the filter width. That is not necessarily the roofing filter width, the DSP filter width can be much more narrow than the roofing

Re: [Elecraft] K3 Filters, Shift Control and RTTY

If the other station has AFC on in their software, they tend to wander around a bit. I tend NOT to run AFC if I am SP, as I line right up on them. If I am running and there is activity around me, it is hard to run AFC, as my signal then wanders around. But if someone comes up a bit off, or

[Elecraft] K3 Filters, Shift Control and RTTY

I have been playing in the WAE RTTY contest. I am mainly using the 250Hz roofing filter with DSP bandwidth at 300 Hz. I occasionally use the 1.8kHz filter with DSP set at about 500 Hz. In either configuration, I find that I have to use the shift control to center signals in the bandpass. Not

Re: [Elecraft] K3 Filters, Shift Control and RTTY

... when I try to use the dual bandpass filter it appears that shift is disabled. The dual bandpass filter for RTTY is preset to one of four tone pairs which you select by using the PITCH function when in DATA:AFSK A or DATA:FSK D modes. 73, Lyle KK7P

RE: [Elecraft] K3 filters

11:32 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 filters I have a k3/100 ordered and am trying to decide on filters. I would like the 250 hz 8 pole filter for cw. Should I also get the 400 hz filter for ssb. Scott N5SM ___ Elecraft

[Elecraft] K3 filters

I have a k3/100 ordered and am trying to decide on filters. I would like the 250 hz 8 pole filter for cw. Should I also get the 400 hz filter for ssb. Scott N5SM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post

Re: [Elecraft] K3 filters

The narrowest filter for SSB is the 1.8khz filter. I have the 2.7, 1.8, 1k, and 400 hz, and it has worked well for my needs. The 1.8 has been the least useful. The 1k and 400 are very handy for CW and RTTY. I have not tried the 250 hz 8 pole, but it is only a bit narrower than the 400 hz.

Re: [Elecraft] K3 filters

Scott McDowell wrote: I have a k3/100 ordered and am trying to decide on filters. I would like the 250 hz 8 pole filter for cw. Should I also get the 400 hz filter for ssb. It's important to remember that the selectivity is dependent on the DSP setting and the filter is just a backup for very

[Elecraft] K3 Filters

Shane, You might have gotten many responses but I will throw in mine just in case. The KBF3 has it's own area where it mounts on both the main and sub receiver. It does not use one of the filter slots. Both the main and sub receiver have 5 filter slots each. Just remember to install the

[Elecraft] K3 Filters

Found the following text at http://www.zerobeat.net/mediawiki/index.php/K3_Suggested_Configurations AM filter $120. FM Filter $120, not yet available as of February 2008. Also, the firmware as of Feb 2008 is not ready to allow the 15khz roofing filter to work with modes other than FM. Is this

Re: [Elecraft] K3 Filters

... the firmware as of Feb 2008 is not ready to allow the 15khz roofing filter to work with modes other than FM. Is this still the case? I plan to buy a K3 soon and will want to be able to use a 9KHz bandwidth in AM mode. I use the 13 kHz FM filter in AM mode reception all the time. The WIDTH

Re: [Elecraft] K3 Filters

The 6 kHz AM and the FM filters have been shipping for several months. 73, Eric WA6HHQ Shane White wrote: Found the following text at http://www.zerobeat.net/mediawiki/index.php/K3_Suggested_Configurations AM filter $120. FM Filter $120, not yet available as of February 2008. Also, the

[Elecraft] K3: Filters now available directly from INRAD

I see that the 8-pole filters can now be purchased directly from INRAD: http://www.inrad.net/home.php?cat=140 The pricing is the same as Elecraft's ($125). I doubt that INRAD would sell directly to end-users until they have fulfilled current orders from Elecraft, but I will leave it to

Re: [Elecraft] K3: Filters now available directly from INRAD

Probably wouldn't post the ad unless they were actually for sale. They show a sliding discount for 3 or more. Jerry W4UK At 03:38 PM 4/22/2008, Mark Volstad wrote: I see that the 8-pole filters can now be purchased directly from INRAD: http://www.inrad.net/home.php?cat=140 The pricing is

[Elecraft] K3 Filters - Trade 1k for 1.8k?

Would anyone like to swap their 1.8k for my 1.0k? Please reply direct...NOT to the list. 73, Bill W4ZV -- View this message in context: http://www.nabble.com/K3-Filters---Trade-1k-for-1.8k--tp15880466p15880466.html Sent from the Elecraft mailing list archive at Nabble.com.

[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

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

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,

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,

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

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

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

Re: [Elecraft] K3 filters

Simple answer - no, but I'll look at this when I get time. At the moment I prefer MP3 and wave files. Simon Brown, HB9DRV - Original Message - From: Nick Lidakis [EMAIL PROTECTED] Have any of you considered using FLAC to encode these files? It would afford much greater fidelity at

Re: [Elecraft] K3 filters

Simon Brown (HB9DRV) wrote: OK, Actually I can make good quality MP3 files using some dodgy software I came across - will post back later. At the moment there's only 40m available... Slightly off topic but... Have any of you considered using FLAC to encode these files? It would afford

[Elecraft] K3 filters

Nobody seems to talk about Group Delay Time. The steeper the LC or Xtal filter is, the higher are Group Delay variations. One filter side up, the other side down. In narrow filters these are very close. This is at least one reason for ringing. 8 Xtal filters are clearly steeper than 5 Xtal types,

Re: [Elecraft] K3 filters

It's a 16-bit mono recording taken via the line-out using a high-quality soundcard (USInterface.com Navigator). The K3 operator isn't all that skilled but he's got half a clue as to what's going on (on a good day at least). The antennas was a sloping 20m dipole, radio tuned to 40m with preamp

Re: [Elecraft] K3 filters

Hi, I think this must be my recording system here, I agree that it is not great - I will look at the line out options I have enabled. Through my Hi-Fi speaker it sounds much better. Simon Brown, HB9DRV - Original Message - From: Barry N1EU [EMAIL PROTECTED] Simon, I've listened

[Elecraft] K3 filters

Simon, I've listened to the clip on a couple of computers and headphones, and I appreciate your efforts but I also have to wonder if this is representative of the K3. At times it sounds distorted (noise modulated?, AGC?) and also, the cw tone often doesn't sound great to my ears. Additional

Re: [Elecraft] K3 filters

I have now tried a Delta-44 soundcard - and have concluded that there's some processing taking place on the Line Out. I've looked at all options I can find and have got nowhere so will take this up with K3 support. The speaker audio is great, the audio from lineout is hollow! Simon Brown,

Re: [Elecraft] K3 filters

I've been wondering how the K3 does on phone. Can someone post some recordings of the K3 receive audio on SSB and perhaps SWLing??? I also wonder if recordings done with PCs faithfully reproduce the audio at the rig. 73deFred N9TA

Re: [Elecraft] K3 filters

Benny, Group Delay is I agree a very important consideration, but I would suggest that another very important factor which determines how well a receiver will perform when the DSP is used as the main 'selectivity block', is the odd order dynamic range of the first IF filter and *everything*

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