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161. Re: [RTTY] Mailing List (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Mon, 5 Apr 2004 23:37:13 -0700
On Apr 5, 2004, at 9:52 PM, Jim Rhodes wrote: Whenever I was subscribed to a list on yahoo, my spam level went up an order of magnitude. I will not subscribe with this addy to anything on yahoo. They
/archives//html/RTTY/2004-04/msg00076.html (7,630 bytes)

162. Re: [RTTY] Call For Papers--2004 Digital Communications Conference (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Tue, 6 Apr 2004 09:32:36 -0700
On Apr 6, 2004, at 8:36 AM, llindblom@juno.com wrote: Des Moines, IA wild! I've never thought of Des Moines as a hot bed of technical knowledge beyond the bio - tech arena. I am only a few miles east
/archives//html/RTTY/2004-04/msg00084.html (7,663 bytes)

163. Re: [RTTY] T33C RTTY (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 11 Apr 2004 13:12:18 -0700
Being a weekend-only warrior I got tired of waiting for T33C to come up on RTTY, so I finally went and worked them on 20m PSK31. If the mountain does not come to Mohammed, Mohammed has to change came
/archives//html/RTTY/2004-04/msg00145.html (8,018 bytes)

164. Re: [RTTY] fluttered signals (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 18 Apr 2004 15:11:56 -0700
On Apr 18, 2004, at 1:34 PM, Jacques RAMBAUD wrote: -what causes the signal to be so difficult to copy ? multipath ?....? -Why is MMTTY unable to deal with such signal? -Is there any other way , or R
/archives//html/RTTY/2004-04/msg00178.html (9,349 bytes)

165. Re: [RTTY] Re: Rtty and Ritty (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Tue, 20 Apr 2004 10:58:41 -0700
On Apr 20, 2004, at 9:33 AM, Bill Turner wrote: It does not surprise me that your KAM out performed the sound card. It not only surprises me, I'm sure there is some configuration problem there. MMTTY
/archives//html/RTTY/2004-04/msg00194.html (11,351 bytes)

166. [RTTY] A repository of (poor) RTTY recordings? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Tue, 20 Apr 2004 13:53:25 -0700
It is perhaps useful for the RTTY community to have available a "standard" collection of digitized sound files of various RTTY signals. Not the clean loud stuff that we already have on the web as exa
/archives//html/RTTY/2004-04/msg00200.html (9,537 bytes)

167. Re: [RTTY] A repository of (poor) RTTY recordings? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Tue, 20 Apr 2004 20:22:22 -0700
On Apr 20, 2004, at 8:10 PM, Dave Bernstein wrote: I have a KAM '98, which I use with MMTTY for RTTY Dxing. WinWarbler lets me run both simultaneously, displaying the received characters from each in
/archives//html/RTTY/2004-04/msg00221.html (9,268 bytes)

168. Re: [RTTY] Multipath, testing, soundcards (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Thu, 22 Apr 2004 09:11:44 -0700
On Apr 22, 2004, at 7:57 AM, Tom McDermott wrote: The CCIR put together a standard for this, and describes the different path conditions to be used for testing. A standalone DSP based path simulator
/archives//html/RTTY/2004-04/msg00275.html (8,757 bytes)

169. [RTTY] HF Channel Simulators (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Thu, 22 Apr 2004 10:18:46 -0700
The following URL is the paper by KC7WW on his HF channel simulator. If you scroll down a bit, you can find a link to a Linux implementation (by OH2BNS). http://www.johanforrer.net/SIMULR/ the Linux
/archives//html/RTTY/2004-04/msg00277.html (6,830 bytes)

170. Re: [RTTY] LID Operator Calling CQ (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sat, 8 May 2004 11:10:17 -0700
On May 8, 2004, at 9:22 AM, Richard Kriss wrote: Due to the lack of a good Macintosh OSX RTTY software package I happen to be one of the operators that prefers to answer CQs. I use MacOS X 10.3.3 and
/archives//html/RTTY/2004-05/msg00047.html (9,380 bytes)

171. Re: [RTTY] RTTY software for macs? (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 9 May 2004 12:50:26 -0700
Tom and all, I wrote something in Cocoa which I use in contests (if you'd worked me in the contests for the past two years, that is what answered you). But it talks only to the KAM Host Interface (th
/archives//html/RTTY/2004-05/msg00054.html (10,271 bytes)

172. [RTTY] DSP Book/FSK (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Mon, 10 May 2004 15:54:34 -0700
I had earlier alluded to a DSP book that addressed FSK, ATC and all that, but could not find it. It finally dawned on me that a colleague had borrowed it. Anyway, I just dropped by his office, and he
/archives//html/RTTY/2004-05/msg00068.html (7,677 bytes)

173. Re: [RTTY] Re: WTB: PK232 (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 30 May 2004 11:28:26 -0700
On May 30, 2004, at 10:01 AM, Richard Kriss wrote: Some of the sound card software packages have neat bells and whistles but for solid RTTY copy I find the PK-232 hard to beat. From: Bill Turner <wrt
/archives//html/RTTY/2004-05/msg00186.html (7,850 bytes)

174. Re: [RTTY] Re: WTB: PK232 (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 30 May 2004 12:43:12 -0700
On May 30, 2004, at 11:56 AM, Reid Hill wrote: And while your at Chen see if you can convince him that PCs are better than Macs for ham radio. :-) To do that would be insincere on my part since all t
/archives//html/RTTY/2004-05/msg00190.html (7,488 bytes)

175. Re: [RTTY] Re: WTB: PK232 (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 30 May 2004 23:31:58 -0700
On May 30, 2004, at 9:27 PM, Ken K7ZUM wrote: together we can point our beams and a kilowatt of so of RTTY at Chen's Mac's and see if we can "toast" them for him !! Heheheheheheh !!! I *knew* there i
/archives//html/RTTY/2004-05/msg00195.html (8,561 bytes)

176. [RTTY] 4U1UN (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sat, 26 Jun 2004 10:56:23 -0700
For anyone still needing 4U1UN, they are CQing at 1750Z on 14079.92. Was just testing the modem program I am writing printed them :-). 73 Chen, W7AY _______________________________________________ RT
/archives//html/RTTY/2004-06/msg00166.html (6,186 bytes)

177. Re: [RTTY] UK RTTY Contest (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Sun, 11 Jul 2004 11:09:03 -0700
Shelby wrote: WOW, 6 hours with no takers! I get concerned, early in a contest, if I go 5 minutes with no takers? I wasn't going to participate until I found 5W0DL last night simply booming in over t
/archives//html/RTTY/2004-07/msg00065.html (7,796 bytes)

178. Re: [RTTY] Yaesu FT-920 setup - HELP!! (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Tue, 13 Jul 2004 12:54:40 -0700
On Jul 13, 2004, at 12:36 PM, John Fleming wrote: Kyle, if you're using a BUXCOMM interface that utilizes a 4N25 or similar optoisolator, I'm not a bit surprised it won't key as expected. Do youself
/archives//html/RTTY/2004-07/msg00098.html (9,297 bytes)

179. Re: [RTTY] Yaesu FT-920 setup - HELP!! (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Tue, 13 Jul 2004 15:34:36 -0700
Here is what I found tracing the pins of the RTTY connector of the FT-990 schematics here (not FT-920, but possibly similar). The RTTY connector's (4 Pin DIN) PTT line is wire-OR'ed with the other PT
/archives//html/RTTY/2004-07/msg00107.html (10,817 bytes)

180. Re: SV: [RTTY] More on NAQP Spotting (score: 1)
Author: Kok Chen <chen@mac.com>
Date: Wed, 14 Jul 2004 08:19:48 -0700
On Jul 14, 2004, at 7:14 AM, Stein Roar Brobakken wrote: But I would say as the text says here; self spotting is allowed. Not IMHO. All that clause in the rules says is that you are allowed to submit
/archives//html/RTTY/2004-07/msg00130.html (7,910 bytes)

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