K3 SSB
Locked
12
12
 
|
OK, I have to ask...I don't see a FAQ for SSB under the mode banner on the
Elecraft site. The K2 is clearly a great CW radio, but it's SSB reputation is not so high. The K3 has had much discussion about CW, RTTY, PSK, other digital modes. So, what are the expectations for this rig as a voice contest radio? I'm trying to figure whether to build a K2 or just wait for the K3, knowing I'm more in need of great sideband than CW radio at the moment. (Just waiting on a replacement crystal to get my K1 running). NU6T Rich _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
> OK, I have to ask...I don't see a FAQ for SSB under the mode banner on the
> Elecraft site. > So, what are the expectations for this rig as a voice contest radio? Briefly, it has VOX, Anti-VOX and PTT to activate SSB Tx. It has an 8-band Tx Equalizer. It's capable of ESSB for those who wish to do so. It has High-Cut and Low-Cut controls to make it easy to adjust receive selectivity. Manual as well as auto-notch. Denoiser. Optional digital voice recorder. Adjustable IF clipper for increased talk power under marginal conditions. Monitoring of Tx audio so you can hear what your signal will sound like over the air. Isolated soundcard interface so you can use a PC for voice-mode operation. Front and rear panel microphone jacks. Switchable mic bias (on/off) to accommodate electret or other microphones on a per-jack basis. Etc. The "etc" are always important ;-) 73, Lyle KK7P _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Richard-3
Richard Hill wrote: > > So, what are the expectations for this rig as a voice contest radio? hi Rich - I did talk to Eric in April about getting a 1.8KHz filter for voice contesting. He said he would look into it. (I do see they added a 1.0KHz filter since I last looked - not sure what that is for.) Hoping he remembers! The combination of the INRAD roofing filter and 1.8KHz IF filters on my FT1000D have made a huge difference in dealing with nearby QRM. Phone contesting is almost fun now! :) 73 - jeff wk6i -- Jeff Stai [hidden email] Twisted Oak Winery http://www.twistedoak.com/ Winery Blog http://www.elbloggotorcido.com/ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Richard-3
If Elecraft does not list a 1.8 kHz option in their selection of roofing filters
there's a possibility that INRAD will. But please remember you are talking apples and oranges when comparing the filtering between the 1000D and a K3. That 2.1 kHz option IS a roofing filter and then you can narrow the final bandwidth using the DSP HI/LO- cut controls as narrow as you need to. ------------------------- 73, Greg - AB7R Whidbey Island WA NA-065 On Thu Jun 21 15:30 , Jeff Stai sent: > > >Richard Hill wrote: >> >> So, what are the expectations for this rig as a voice contest radio? > >hi Rich - I did talk to Eric in April about getting a 1.8KHz filter for voice contesting. He said he >would look into it. (I do see they added a 1.0KHz filter since I last looked - not sure what that is >for.) Hoping he remembers! > >The combination of the INRAD roofing filter and 1.8KHz IF filters on my FT1000D have made a huge >difference in dealing with nearby QRM. Phone contesting is almost fun now! :) > >73 - jeff wk6i > > >-- >Jeff Stai [hidden email] >Twisted Oak Winery http://www.twistedoak.com/ >Winery Blog http://www.elbloggotorcido.com/ >_______________________________________________ >Elecraft mailing list >Post to: [hidden email] >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: [hidden email] 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 |
|
|
yeah, I pushed send too soon... I only have experience with audio DSP, so I guess I remain dubious until I learn more. My gut feel is that I want the first filter at 1.8 and then go DSP from there. Since the designers are offering a 200Hz filter I infer they feel the same way about CW. But we'll see soon enough. 73! - jeff wk6i [hidden email] wrote: > If Elecraft does not list a 1.8 kHz option in their selection of roofing filters > > there's a possibility that INRAD will. But please remember you are talking apples > > and oranges when comparing the filtering between the 1000D and a K3. That 2.1 kHz > > option IS a roofing filter and then you can narrow the final bandwidth using the > > DSP HI/LO- cut controls as narrow as you need to. > -- Jeff Stai [hidden email] Twisted Oak Winery http://www.twistedoak.com/ Winery Blog http://www.elbloggotorcido.com/ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Jeff Stai
> hi Rich - I did talk to Eric in April about getting a 1.8KHz filter for
> voice contesting. He said he would look into it. (I do see they added a http://www.elecraft.com/K3/filter_plots/ Looks like they are thinking about it - I'd like one too. vy 73 de toby -- DD5FZ, 4N6FZ (ex dj7mgq, dg5mgq, dd5fz) K2 #885, K2/100 #3248 K3/100 #??? (< #200) DOK C12, BCC, DL-QRP-AG _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by KK7P
Enough gain for low output microphones, selectable input Z, good RF immunity ?
73 Stewart G3RXQ On Thu, 21 Jun 2007 12:14:17 -0700, Lyle Johnson wrote: >> OK, I have to ask...I don't see a FAQ for SSB under the mode banner on the >> >> Elecraft site. >> So, what are the expectations for this rig as a voice contest radio? >> > Briefly, it has VOX, Anti-VOX and PTT to activate SSB Tx. It has an > 8-band Tx Equalizer. It's capable of ESSB for those who wish to do so. > It has High-Cut and Low-Cut controls to make it easy to adjust receive > selectivity. Manual as well as auto-notch. Denoiser. Optional digital > voice recorder. Adjustable IF clipper for increased talk power under > marginal conditions. Monitoring of Tx audio so you can hear what your > signal will sound like over the air. Isolated soundcard interface so > you can use a PC for voice-mode operation. Front and rear panel > microphone jacks. Switchable mic bias (on/off) to accommodate electret > or other microphones on a per-jack basis. > > Etc. The "etc" are always important ;-) > > 73, > > Lyle KK7P > > Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Richard-3
Richard Hill <[hidden email]> wrote:
> The K2 is clearly a great CW radio, but it's SSB reputation > is not so high. --------------------------------------------------------------- Am surprised Rich to hear that the K2's SSB reputation is not so high, would that be it's Rx or Tx performance? My K2/100 plus Heil ProSet Plus with HC5, and no doubt many other K2s, often receives an unsolicited report of "excellent" audio with a 2.1 kHz filter in the KSB2 for reasons of "talk power". The only severe problem that I have found with the receiver in any mode is that it cannot handle the BC stations between 7140 kHz and 7200 kHz when they are in full voice here, with carrier levels in the -10dbm or higher region, and I have to use another receiver when working the States or other DX if using a dipole and not a beam with useful f/b during these periods. Must defend the K2 :-) 73, Geoff GM4ESD _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
On Fri, Jun 22, 2007 at 12:51:35PM +0100, Geoffrey Mackenzie-Kennedy wrote:
> Richard Hill <[hidden email]> wrote: > > >The K2 is clearly a great CW radio, but it's SSB reputation > >is not so high. > > --------------------------------------------------------------- > > Am surprised Rich to hear that the K2's SSB reputation is not so high, > would that be it's Rx or Tx performance? My K2/100 plus Heil ProSet Plus > with HC5, and no doubt many other K2s, often receives an unsolicited report > of "excellent" audio with a 2.1 kHz filter in the KSB2 for reasons of "talk > power". The only severe problem that I have found with the receiver in any > mode is that it cannot handle the BC stations between 7140 kHz and 7200 kHz > when they are in full voice here, with carrier levels in the -10dbm or > higher region, and I have to use another receiver when working the States > or other DX if using a dipole and not a beam with useful f/b during these > periods. I am a K2 owner and a serious phone contester. I do not use the K2 for contesting. The two biggest flaws are (a) the tuning rate of the main tuning knob is awful for serious phone use and cannot be improved, and (b) there is no audio monitor. The K3 will fix both of these problems as well as adding a second receiver option (useful for 40 meters split operation) among other improvements for the phone operator. > > Must defend the K2 :-) > > 73, > Geoff > GM4ESD > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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 -- Kenneth E. Harker WM5R [hidden email] http://www.kenharker.com/ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
Kenneth E. Harker <[hidden email]> wrote :
> I am a K2 owner and a serious phone contester. I do not use the K2 for > contesting. The two biggest flaws are (a) the tuning rate of the main > tuning knob is awful for serious phone use and cannot be improved, and > (b) there is no audio monitor. The K3 will fix both of these problems > as well as adding a second receiver option (useful for 40 meters split > operation) among other improvements for the phone operator. ----------------------------------------------------------------- Understood. It has been a long time since I was a serious phone or CW contester, more S&P during a contest these days. Otherwise looking for "new ones" from this QTH for fun not awards - been there! In this context I find the K2's tuning rate not to be handicap but an audio monitor would be useful, when using the K2/100 my only monitor is a spectrum analyzer. A second built in receiver can also be useful for crossband split or search if the receiver's design allows for this. Many thanks. 73, Geoff GM4ESD _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
On 6/22/07, Geoffrey Mackenzie-Kennedy <[hidden email]> wrote:
> > Understood. It has been a long time since I was a serious phone or CW > contester, more S&P during a contest these days. Otherwise looking for "new > ones" from this QTH for fun not awards - been there! In this context I find > the K2's tuning rate not to be handicap but an audio monitor would be > useful, when using the K2/100 my only monitor is a spectrum analyzer. A > second built in receiver can also be useful for crossband split or search if > the receiver's design allows for this. I'm glad I don't take radio too seriously, it sounds like you can never be satisfied with anything. :) I can't really see what's wrong with the K2's tuning rate, for voice. I find the 100Hz steps just fine for that. As for an audio monitor, I've never found it helpful trying to listen to my own voice as I speak. I use another radio and record off-air using the computer, then I can play it back and listen properly. I can even make several recordings using different settings and pick the best. -- Julian, G4ILO G4ILO's Shack: www.g4ilo.com K2 s/n: 392 K3 s/n: ??? www.Ham-Directory.com: the best ham resources on the net _______________________________________________ Elecraft mailing list Post to: [hidden email] 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
Julian, G4ILO. K2 #392 K3 #222 KX3 #110
* G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html |
|
|
Is a K3 desk mic (still?) planned to be offered by Elecraft?
Regards, Dick - KA5KKT/4 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Julian, G4ILO
On Fri, Jun 22, 2007 at 03:59:57PM +0100, Julian G4ILO wrote:
> On 6/22/07, Geoffrey Mackenzie-Kennedy <[hidden email]> wrote: > > > >Understood. It has been a long time since I was a serious phone or CW > >contester, more S&P during a contest these days. Otherwise looking for "new > >ones" from this QTH for fun not awards - been there! In this context I find > >the K2's tuning rate not to be handicap but an audio monitor would be > >useful, when using the K2/100 my only monitor is a spectrum analyzer. A > >second built in receiver can also be useful for crossband split or search > >if > >the receiver's design allows for this. > > I'm glad I don't take radio too seriously, it sounds like you can > never be satisfied with anything. :) I can't really see what's wrong > with the K2's tuning rate, for voice. I find the 100Hz steps just fine > for that. Most desktop size HF radios allow at least 10 Hz tuning resolution at 10 kHz per knob revolution (that's what the Yaesu FT-1000MP does, for example). With the K2, you can get a 10 kHz per knob revolution at 100 Hz tuning, or 10 Hz tuning at just 1 kHz per knob revolution. 100 kHz tuning resolution just does not work when trying to quickly tune in a station through QRM or difficult conditions, and having to turn the tuning dial three or four complete revolutions to get to the next station up or down the band is also not going to work. I've tried replacing the optical encoder in the K2 with one that is higher resolution. If you go with one that has four times as many steps per revolution as the stock encoder, you can have 10 Hz tuning resolution and get 4 KHz per knob revolution. While that is an improvement, it's not quite enough, and if you turn the knob fast enough, you can outspin the K2's CPU's ability to keep up (which sometimes results in you going the wrong direction in frequency!) Moving up to an 8x encoder will improve things to 8 kHz per knob revolution, but then it's very, very easy to outspin the CPU, and the radio become almost unusable. Some more thoughts here: http://www.wm5r.org/k2-100/encoders.shtml >From what I've heard talking from those who have hands-on experience with the K3 prototypes, all of these problems have been solved in the new radio. > As for an audio monitor, I've never found it helpful trying > to listen to my own voice as I speak. I use another radio and record > off-air using the computer, then I can play it back and listen > properly. I can even make several recordings using different settings > and pick the best. I think an audio monitor is invaluable to a phone contester. You can always tell when your signal sounds OK and when it might be getting rough due to unforeseen RF getting in the mic lines, some unexpected ground loop problem, etc. When doing SO2R with a voice keyer, it's extremely helpful to know what you're transmitting so you can judge the timing of your second radio activity. -- Kenneth E. Harker WM5R [hidden email] http://www.kenharker.com/ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Julian, G4ILO
On 22 June 2007, Julian G4ILO <[hidden email]> wrote:
> I'm glad I don't take radio too seriously, it sounds like you can > never be satisfied with anything. :) I can't really see what's wrong > with the K2's tuning rate, for voice. I find the 100Hz steps just fine > for that. As for an audio monitor, I've never found it helpful trying > to listen to my own voice as I speak. I use another radio and record > off-air using the computer, then I can play it back and listen > properly. I can even make several recordings using different settings > and pick the best. ------------------------------------------------------------- Who, me? :-) No difficulty here either with the K2's 100Hz tuning steps. An audio monitor does or should tell you if the mic or something else in the Tx's AF has fallen apart if you are not looking at the Tx power output meter while transmitting. Checking / adjusting is a different story and I agree with you, I use a little direct conversion receiver with recorder for that purpose. 73, Geoff GM4ESD _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
Administrator
|
In reply to this post by Jeff Stai
I'll add it to the order form today. :-)
Eric Jeff Stai wrote: > > > Richard Hill wrote: >> >> So, what are the expectations for this rig as a voice contest radio? > > hi Rich - I did talk to Eric in April about getting a 1.8KHz filter > for voice contesting. He said he would look into it. (I do see they > added a 1.0KHz filter since I last looked - not sure what that is > for.) Hoping he remembers! > > The combination of the INRAD roofing filter and 1.8KHz IF filters on > my FT1000D have made a huge difference in dealing with nearby QRM. > Phone contesting is almost fun now! :) > > 73 - jeff wk6i > > Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Geoffrey Mackenzie-Kennedy-2
Interesting. Virtually 99% of my SSB operating is done using an ear-sealing
Heil Pro-Set headset, and I find headset SSB operation to be quite uncomfortable without transmit audio feedback. I set mine to where the sound of my own voice sounds approximately the same volume that it does when I'm talking without a headset on. I've also been thankful for it many times when a flaky connection in my mic line (or other transmit anomaly) has occurred. Using it with speaker is another matter. If you use it at all, it needs to be very low-level. I have mine set to where it provides a comfortable level of monitor feedback in the phones but is really not noticeable on speaker. Glad the K3 is implementing this feature. Bill / W5WVO Geoffrey Mackenzie-Kennedy wrote: > Who, me? :-) No difficulty here either with the K2's 100Hz tuning > steps. An audio monitor does or should tell you if the mic or > something else in the Tx's AF has fallen apart if you are not looking > at the Tx power output meter while transmitting. Checking / adjusting > is a different story and I agree with you, I use a little direct > conversion receiver with recorder for that purpose. > > 73, > Geoff > GM4ESD > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
|
|
In reply to this post by Kenneth E. Harker
Kenneth E. Harker wrote:
> example). With the K2, you can get a 10 kHz per knob revolution at 100 Hz > tuning, or 10 Hz tuning at just 1 kHz per knob revolution. 100 kHz tuning Was the kHz a typo here? > > I've tried replacing the optical encoder in the K2 with one that is higher > resolution. If you go with one that has four times as many steps per > revolution as the stock encoder, you can have 10 Hz tuning resolution and > get 4 KHz per knob revolution. While that is an improvement, it's not I found single stepping with only 100 steps per revolution a bit fiddly, although I've only done this in the control board test, so far. I think, though, that the right mod for this is a firmware one, not a hardware one, but Elecraft hold the monopoly on firmware mods. When I first read the section on tuning rate, it rather surprised me that they didn't do something that was common with track balls, long before the inventions of Windows, namely to make the velocity response non-linear. That way, if you are fine tuning, it will step very slowly, but, if you spin the dial, it will slew very quickly. Even the, more consumer oriented, ATS-803A does that, even if their non-optical encoder leaves something to be desired. You can even make it so that very slow turning requires several encoder steps per frequency step. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Kenneth E. Harker
On Jun 22, 2007, at 8:21 AM, Kenneth E. Harker wrote: > I am a K2 owner and a serious phone contester. I do not use the K2 > for > contesting. The two biggest flaws are (a) the tuning rate of the main > tuning knob is awful for serious phone use and cannot be improved, and > (b) there is no audio monitor. a) you can select the 50 Hz tuning rate, which does OK for tuning phone. In fact, one of my wish list items for the K2 is to have the default tuning rate track the mode, so you don't have to keep switching it. 50 Hz tuning yields 5 kHz / revolution. b) do you really need to listen to yourself? If you are using two radios, you don't want the monitor at all. > The K3 will fix both of these problems > as well as adding a second receiver option (useful for 40 meters split > operation) among other improvements for the phone operator. The K3 is better for serious contesting in many ways, but the K2 does hold its own. Bill Coleman, AA4LR, PP-ASEL Mail: [hidden email] Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
In reply to this post by Kenneth E. Harker
On Jun 22, 2007, at 11:47 AM, Kenneth E. Harker wrote: > Most desktop size HF radios allow at least 10 Hz tuning resolution at > 10 kHz per knob revolution (that's what the Yaesu FT-1000MP does, for > example). With the K2, you can get a 10 kHz per knob revolution at > 100 Hz > tuning, or 10 Hz tuning at just 1 kHz per knob revolution. Nope. It's 5 kHz per knob revolution. While you can only see 100 Hz on the display, the radio is actually tuning in 50 Hz steps. There's no way to select 100 Hz steps. My ancient TS-430S does 9.6 kHz per revolution (960 10 Hz steps). An old FT-101 does about 15 kHz per revolution. So, if 10-15 kHz per revolution is OK for these rigs with 2" diameter knobs, what's wrong with 5 kHz / revolution on the K2, with it's much smaller knob? It seems like about the same rate. > ... and having to turn the tuning dial > three or four complete revolutions to get to the next station up or > down > the band is also not going to work. With the 50 Hz tuning rate, you have to turn the knob about 1/2 a turn to go to the next slot. On other radios, you'd turn it about 1/4 a turn, of a much larger knob. > I've tried replacing the optical encoder in the K2 with one that is > higher > resolution. If you go with one that has four times as many steps per > revolution as the stock encoder, you can have 10 Hz tuning > resolution and > get 4 KHz per knob revolution. Why not go with one that has twice as many steps and use 50 Hz steps -- that would be 10 kHz / revolution. > I think an audio monitor is invaluable to a phone contester. You can > always tell when your signal sounds OK and when it might be getting > rough due to unforeseen RF getting in the mic lines, some > unexpected ground > loop problem, etc. When doing SO2R with a voice keyer, it's extremely > helpful to know what you're transmitting so you can judge the > timing of > your second radio activity. When I first did SO2R, it was at W4AN's (SK) mountaintop superstation. Bill's advice to me was to turn the monitor all the way down on the IC-761 main radio. I indicated that I preferred to hear the monitor. During the course of the contest, I kept turning the monitor down and down. By about the sixth hour of the contest, I had it all the way off. He was right. Bill Coleman, AA4LR, PP-ASEL Mail: [hidden email] Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
|
|
K3 tuning is very versitile.
You can select tuning rate, course or fine tuning, and how many counts per turn of the encoder (100, 200 and 400). 73 Greg AB7R -----Original Message----- From: [hidden email] [mailto:[hidden email]]On Behalf Of Bill Coleman Sent: Sunday, July 08, 2007 8:19 PM To: Kenneth E.Harker Cc: elecraft Subject: Re: [Elecraft] K3 SSB On Jun 22, 2007, at 11:47 AM, Kenneth E. Harker wrote: > Most desktop size HF radios allow at least 10 Hz tuning resolution at > 10 kHz per knob revolution (that's what the Yaesu FT-1000MP does, for > example). With the K2, you can get a 10 kHz per knob revolution at > 100 Hz > tuning, or 10 Hz tuning at just 1 kHz per knob revolution. Nope. It's 5 kHz per knob revolution. While you can only see 100 Hz on the display, the radio is actually tuning in 50 Hz steps. There's no way to select 100 Hz steps. My ancient TS-430S does 9.6 kHz per revolution (960 10 Hz steps). An old FT-101 does about 15 kHz per revolution. So, if 10-15 kHz per revolution is OK for these rigs with 2" diameter knobs, what's wrong with 5 kHz / revolution on the K2, with it's much smaller knob? It seems like about the same rate. > ... and having to turn the tuning dial > three or four complete revolutions to get to the next station up or > down > the band is also not going to work. With the 50 Hz tuning rate, you have to turn the knob about 1/2 a turn to go to the next slot. On other radios, you'd turn it about 1/4 a turn, of a much larger knob. > I've tried replacing the optical encoder in the K2 with one that is > higher > resolution. If you go with one that has four times as many steps per > revolution as the stock encoder, you can have 10 Hz tuning > resolution and > get 4 KHz per knob revolution. Why not go with one that has twice as many steps and use 50 Hz steps -- that would be 10 kHz / revolution. > I think an audio monitor is invaluable to a phone contester. You can > always tell when your signal sounds OK and when it might be getting > rough due to unforeseen RF getting in the mic lines, some > unexpected ground > loop problem, etc. When doing SO2R with a voice keyer, it's extremely > helpful to know what you're transmitting so you can judge the > timing of > your second radio activity. When I first did SO2R, it was at W4AN's (SK) mountaintop superstation. Bill's advice to me was to turn the monitor all the way down on the IC-761 main radio. I indicated that I preferred to hear the monitor. During the course of the contest, I kept turning the monitor down and down. By about the sixth hour of the contest, I had it all the way off. He was right. Bill Coleman, AA4LR, PP-ASEL Mail: [hidden email] Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: [hidden email] 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 |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |