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Total 54 documents matching your query.

1. Topband: Key Clicks (score: 1): Author: k6se at juno.com (k6se@juno.com); Date: Mon May 5 05:48:55 2003; I just finished measuring the CW bandwidth of my Elecraft K2 using the exact same test setup as when I measured the CW bandwidth of my Yaesu FT-1000MP. Test setup: Frequency: 1825.00 kHz Transmitting; /archives//html/Topband/2003-05/msg00026.html (8,330 bytes)
2. Topband: Key Clicks (score: 1): Author: sp5ena at idea.net.pl (Miroslaw Paczocha); Date: Mon May 5 11:40:50 2003; In order to get a good TX CW bandwith in my home made TRX, I let the keyed CW signal pass through the normally RX high quality crystal filter with next stages of the transmitting chain being linear (; /archives//html/Topband/2003-05/msg00029.html (8,135 bytes)
3. Topband: Key clicks (score: 1): Author: w3uls at 3n.net (John Rippey); Date: Thu May 8 14:19:42 2003; Earl, K6SE, has posted results of his listening for key clicks with a K-2 transceiver as compared to his modified/unmodified 1000MP. His conclusion: somebody needs to do a mod for the K-2. Another co; /archives//html/Topband/2003-05/msg00056.html (8,966 bytes)
4. Topband: Key clicks (score: 1): Author: w9ac at arrl.net (Paul Christensen, Esq.); Date: Thu May 8 16:43:48 2003; I continue to be amazed at how much difficulty the overseas manufacturers have in attaining good, click-free and thump-less QSK keying where character elements are not truncated....requiring the use; /archives//html/Topband/2003-05/msg00059.html (11,692 bytes)
5. Topband: Key clicks (score: 1): Author: k6se at juno.com (k6se@juno.com); Date: Thu May 8 18:39:29 2003; "The only significant rig not yet tested [for CW bandwidth] is the Ten-Tec Orion and it will be interesting to see if that rig does better at the ARRL lab than the -35dB down @ 1 kHz that now seems t; /archives//html/Topband/2003-05/msg00060.html (8,025 bytes)
6. Topband: Key clicks (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Sat May 10 08:47:31 2003; issue? Perhaps the FCC should only "type accept" amateur I think we need to have a grass-roots effort. Yaesu recently released a factory mod for one of their clicky radios, engineered by the factory,; /archives//html/Topband/2003-05/msg00068.html (8,791 bytes)
7. Topband: Key clicks (score: 1): Author: eric at K3NA.ORG (Eric Scace K3NA); Date: Sat May 10 12:26:58 2003; I wonder how much of our reflector chatter about performance issues like key clicks ever gets back to the product development teams in places like Icom etc. I'm sorry to confess that I've never actua; /archives//html/Topband/2003-05/msg00072.html (10,536 bytes)
8. Topband: Key clicks (score: 1): Author: charlesh3 at msn.com (Charles Hutton); Date: Sat May 10 12:27:00 2003; Tom: The spectrum of a OOK (CW) signal at 3 wpm is different from the spectrum at 30 wpm, so what does the last phrase in your response mean? The signals will have energy content at (carrier rate +/-; /archives//html/Topband/2003-05/msg00073.html (9,083 bytes)
9. Topband: Key clicks (score: 1): Author: tod at k0to.us (Tod Olson - Idaho); Date: Sat May 10 13:37:57 2003; Eric, how about you drafting a letter to Yaesu that describes the problem and suggests (1) what we would like in future products and (2) what we would like to see as a modification to the FT1000MP se; /archives//html/Topband/2003-05/msg00074.html (8,660 bytes)
10. Topband: Key clicks (score: 1): Author: NX4D at comcast.net (Doug Waller); Date: Sat May 10 14:00:52 2003; about key clicks and having to perform post-production mods, far less feedback than that for us to say "hey, maybe we Convincing the manufacturers to give us better 160m rigs is surely a good idea.; /archives//html/Topband/2003-05/msg00075.html (9,435 bytes)
11. Topband: Key clicks (score: 1): Author: k6se at juno.com (k6se@juno.com); Date: Sat May 10 22:38:19 2003; "The spectrum of a OOK (CW) signal at 3 wpm is different from the spectrum at 30 wpm, so what does the last phrase in your response mean? The signals will have energy content at (carrier rate +/- sym; /archives//html/Topband/2003-05/msg00076.html (8,028 bytes)
12. Topband: Key clicks (score: 1): Author: dan at anwireless.com (Dan Simmonds); Date: Sat May 10 22:38:21 2003; I remember at Dayton about 3 years ago, seeing the introduction of an HF rig made by Motorola, strictly for Amateur use. I'd be willing to bet that radio (can't recall the exact model number off hand; /archives//html/Topband/2003-05/msg00077.html (10,264 bytes)
13. Topband: Key clicks (score: 1): Author: W4EF at dellroy.com (Michael Tope); Date: Sat May 10 22:38:22 2003; This same argument ensued in a design review for a radar that I attended a few months ago. This radar was a good analogy to clicky CW as it has a relatively low PRF (e.g. keying speed) and a very fas; /archives//html/Topband/2003-05/msg00078.html (11,498 bytes)
14. Topband: Key clicks (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Sun May 11 17:40:34 2003; The spectrum of a OOK (CW) signal at 3 wpm is different from the spectrum at will signal Bandwidth is set entirely by the rise and fall time and shape of the rise and fall of the signal. My keyclicks; /archives//html/Topband/2003-05/msg00081.html (9,389 bytes)
15. Topband: Key clicks (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Sun May 11 17:40:38 2003; The ARRL Handbook is quite lacking in its analysis of keyclicks and descriptions of CW keying Earl. It is one of the worse areas of the Handbook. The **required** bandwidth is given by that formula,; /archives//html/Topband/2003-05/msg00083.html (7,991 bytes)
16. Topband: Key clicks (score: 1): Author: brehm at ptitest.com (Brad Rehm); Date: Mon May 12 12:11:20 2003; "I wonder how much of our reflector chatter about performance issues like key clicks ever gets back to the product development teams in places like Icom etc." -- Eric K3NA I don't know how well-conne; /archives//html/Topband/2003-05/msg00095.html (9,032 bytes)
17. Topband: Key clicks (score: 1): Author: i4jmy at iol.it (Maurizio Panicara); Date: Mon May 12 16:11:50 2003; about key clicks and having to perform post-production mods, far less feedback than that for us to say "hey, maybe we As a product manager (not in Ham radio) I suspect 50 letters about key clicks co; /archives//html/Topband/2003-05/msg00096.html (9,676 bytes)
18. Topband: Key clicks (score: 1): Author: k8mn at earthlink.net (Dave Heil); Date: Mon May 12 20:55:05 2003; Effectively worded complaints to the manufacturer can demonstrate that there is a problem. Enough of those complaints can generate action on the part of the manufacturer to make certain that the part; /archives//html/Topband/2003-05/msg00098.html (11,088 bytes)
19. Topband: Key clicks (score: 1): Author: w9ac at arrl.net (Paul Christensen, Esq.); Date: Mon May 12 21:49:19 2003; I suspect a few FCC Advisory Notices sent to hams that are in turn forwarded to the manufacturers with an accompanying cover letter would get their attention. At some point, the operator alone becom; /archives//html/Topband/2003-05/msg00099.html (9,662 bytes)
20. Topband: Key clicks (score: 1): Author: k1mk at alum.mit.edu (Michael Keane, K1MK); Date: Tue May 13 05:35:32 2003; There are bandwidths and then there are bandwidths... The bandwidth of a CW signal at -6 dB wrt peak or average power is set by the element rate (pulse width) not the envelope shape. The same goes fo; /archives//html/Topband/2003-05/msg00100.html (10,567 bytes)

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