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301. Re: [RTTY] ARRL Bandwidth Proposal - FCC Invites Comments (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Fri, 13 Jan 2006 18:44:14 -0800
How about calling it an "open protocol" instead of a "free protocol?" 73 Chen, W7AY _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contesting.com/m
/archives//html/RTTY/2006-01/msg00306.html (8,241 bytes)

302. Re: [RTTY] RTTY Best Practices (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 15 Jan 2006 13:01:38 -0800
In the early days of spacecrafts, Avizienis at JPL had introduced the concept of "Triple Modular Redundancy" into their hardware. Critical hardware were replicated in three, together with a voting me
/archives//html/RTTY/2006-01/msg00361.html (10,020 bytes)

303. Re: [RTTY] ARRL Bandwidth Proposal - FCC Invites Comments (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 15 Jan 2006 15:12:48 -0800
Why do you insist that it be royalty free? Royalties prevent someone from fiscally profiting from your intellectual labors without sharing it with you. If I am building something for my personal use,
/archives//html/RTTY/2006-01/msg00369.html (10,479 bytes)

304. Re: [RTTY] uh, what about spectrum? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Mon, 16 Jan 2006 11:15:22 -0800
Neccessary bandwidth is that is required for you to transmit and receive an RTTY signal. How much must a signal be down at the bandwidth limits under the new proposed rules? For today's 170 Hz, 45 ba
/archives//html/RTTY/2006-01/msg00391.html (9,360 bytes)

305. Re: [RTTY] uh, what about spectrum? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Mon, 16 Jan 2006 12:34:56 -0800
The problem is that the latter definition does not necessarily mean that the 1% power is maintained. A poor keying waveshape in an FSK transmitter can lead to a much wider (as defined by 1% power) si
/archives//html/RTTY/2006-01/msg00396.html (9,007 bytes)

306. Re: [RTTY] Narrow RTTY (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Mon, 16 Jan 2006 18:39:01 -0800
I had earlier played with Steve WB6RSE using 125 Hz shift (since it will fit into a 200 Hz bandwidth if you use the 1.2*shift + baudrate equation). Bill could only go to fixed shifts, so between W6WR
/archives//html/RTTY/2006-01/msg00401.html (7,404 bytes)

307. Re: [RTTY] What is MINIRTTY? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Wed, 1 Feb 2006 19:51:14 -0800
I think MTTY == Minimum Shift Keying RTTY. 73 Chen, W7AY _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contesting.com/mailman/listinfo/rtty
/archives//html/RTTY/2006-02/msg00011.html (6,988 bytes)

308. Re: [RTTY] 3Y0X (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sat, 11 Feb 2006 12:37:33 -0800
Not just EU and SA, but this small USA station (100 watts, vertical on 17m) had trouble getting through because of the big guns! At one point around 2300z, their signal dropped below reliable printin
/archives//html/RTTY/2006-02/msg00128.html (8,552 bytes)

309. Re: [RTTY] DIN stands for....? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sat, 25 Feb 2006 11:23:44 -0800
Am I the only one here who prefers the DIN connector to a rat's nest of RCA plugs?! I can quickly swap a single DIN connector from my FT-1000MP to my spare FT-990 and I am sending diddles again. For
/archives//html/RTTY/2006-02/msg00319.html (8,446 bytes)

310. Re: [RTTY] K4WW (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 26 Feb 2006 10:48:16 -0800
Being a predominantly S&P op, I have noticed this a lot. It is bad enough for loud stations to beat my peanut whistle on a call -- nowadays, I have to contend with stations on _another_band_ beating
/archives//html/RTTY/2006-02/msg00358.html (6,996 bytes)

311. Re: [RTTY] Station upgrade (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 26 Feb 2006 12:49:06 -0800
Shhhhh! Folks still using the Ten-Tec Omni may hear you. The Omni VI may have a synthesized VFO, but FSK transmit keying is done by switching in and out a 6 pF trimmer from the 9 MHz transmit L.O.'s
/archives//html/RTTY/2006-02/msg00371.html (8,078 bytes)

312. Re: [RTTY] K4WW (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 26 Feb 2006 18:13:02 -0800
Perhaps it was not his frequency after all. He could have jogged the VFO knob while sneezing, eh? 73 Chen, W7AY _______________________________________________ RTTY mailing list RTTY@contesting.com h
/archives//html/RTTY/2006-02/msg00383.html (7,616 bytes)

313. Re: [RTTY] How about a 160m RTTY High Speed Sprint? (was RTTY on 160Meters) (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Mon, 27 Feb 2006 16:40:25 -0800
I have logs of the HSS from 1997, 1998, 1999 and 2000. My 1997 log had VE3WQ, KN6DV, W5XD, K4BU, K5DJ, K0KO, W7RSJ, KA4RRU, WA3IIK, VE2AXO, K1TGS, N4XSE. The 1999 had more "usual suspects", including
/archives//html/RTTY/2006-02/msg00407.html (7,787 bytes)

314. Re: [RTTY] New Yahoo eGroup Hellschreiber (FELD HELL) (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Fri, 31 Mar 2006 11:02:31 -0800
There is a recent page (not a discussion group) for Hellschreiber ops at http://homepage.ntlworld.com/dave.cutts/ . Bzzzt bzzzt (that's 73 in "Hell" :-) Chen, W7AY ___________________________________
/archives//html/RTTY/2006-03/msg00357.html (7,409 bytes)

315. Re: [RTTY] dxp 38 & wf1b rtty502 (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 7 May 2006 17:01:33 -0700
Old!? Just wait until JARTS. 73 Chen, W7AY (young person, old call :-) _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contesting.com/mailman/listin
/archives//html/RTTY/2006-05/msg00025.html (7,468 bytes)

316. Re: [RTTY] Be Careful What You Ask For ... (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Mon, 24 Jul 2006 09:04:05 -0700
When Walt AH6OZ was over at my QTH during ARRL Roundup a couple of years ago, we must have spent more time eating, drinking and visiting electronics stores than operating multi-two as W7/AH6OZ. There
/archives//html/RTTY/2006-07/msg00370.html (7,665 bytes)

317. Re: [RTTY] Arrived Swains Island (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Thu, 27 Jul 2006 13:44:27 -0700
Tom, Couldn't you simulate the QSOs? 73 Chen, W7AY _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contesting.com/mailman/listinfo/rtty
/archives//html/RTTY/2006-07/msg00553.html (7,089 bytes)

318. Re: [RTTY] KN4LF Daily LF/MF/HF Radio Propagation Outlook #2006-015 (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Fri, 25 Aug 2006 09:59:57 -0700
Here is one definition of what spam is http://en.wikipedia.org/wiki/Spam_(electronic) Without asking others on this reflector, how do you know Bill is a lone dissenter? He may be the first to go publ
/archives//html/RTTY/2006-08/msg00108.html (9,179 bytes)

319. Re: [RTTY] Monitor with OScope? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 17 Sep 2006 11:47:02 -0700
Warning: long description coming up for RTTY freaks who care :-). That "rubbery" feel probably comes from a delay time between when the sound sample arrives and when it finally reaches the human eyes
/archives//html/RTTY/2006-09/msg00045.html (12,739 bytes)

320. Re: [RTTY] CQWW RTTY (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Thu, 21 Sep 2006 09:03:38 -0700
Unless you count the extra LTRS and FIGS that is sent :-) :-) 73 Chen, W7AY _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contesting.com/mailman/l
/archives//html/RTTY/2006-09/msg00080.html (7,329 bytes)

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