- 1. Re: Topband: Looking for a 2n5109 (score: 1)
- Author: <ok1cf@atlas.cz>
- Date: Thu, 22 Oct 2020 22:30:00 +0200
- Hi, There is an equivalent type of 2N5109 available at many sellers. NTE278 with same parameters. Karel OK1CF Mouser has them in and out of stock. I ordered some 6 months ago, and they came in about
- /archives//html/Topband/2020-10/msg00149.html (8,169 bytes)
- 2. Topband: Stew Perry audio files (score: 1)
- Author: <ok1cf@atlas.cz>
- Date: Mon, 28 Dec 2020 19:37:14 +0100
- Hi. My Stew Perry 5 minutes MP3 audio files are saved at: https://ulozto.cz/tamhle/sWl7RYQ4pzWA/name/Nahrano-28-12-2020-v-19-23-23 Time of files UTC+1 Hour. 73 es HNY Karel OK1CF _________________ Se
- /archives//html/Topband/2020-12/msg00250.html (6,296 bytes)
- 3. Re: Topband: CQ Zones (score: 1)
- Author: Karel Matousek <ok1cf@atlas.cz>
- Date: Tue, 09 Mar 2021 16:10:50 +0100
- I agree wit Martin OK1RR. I cannot endorse FT4, FT8 for the ARRL DXCC Program. IMHO, this should NEVER be allowed unless qualified in a separate rules category! Karel OK1CF ____________________
- /archives//html/Topband/2021-03/msg00035.html (11,308 bytes)
- 4. Topband: W6WIN/7 (score: 1)
- Author: <ok1cf@atlas.cz>
- Date: Thu, 23 Dec 2021 07:35:34 +0100
- Hi, does anyone know the skimmer QTH of W6WIN / 7? He sometimes spots me, but I don't know where he is? Many thanks. 73 Karel OKCF _________________ Searchable Archives: http://www.contesting.com/_to
- /archives//html/Topband/2021-12/msg00065.html (6,047 bytes)
- 5. Re: Topband: RFI powerline ? (score: 1)
- Author: Karel Matousek <ok1cf@atlas.cz>
- Date: Tue, 11 Jan 2022 10:37:02 +0100
- Hi Andy. I do have the same noises problem over here as you have. I found that it isnt a 110 KV powerline noise, but probably a broadband noise is coming from the direction 10 °here in JO60OK. It
- /archives//html/Topband/2022-01/msg00074.html (8,881 bytes)
- 6. Re: Topband: PSK31 etc (score: 1)
- Author: <ok1cf@atlas.cz>
- Date: Tue, 22 Feb 2022 17:23:22 +0100
- Hi. I am strongly against your recommendations. 1836 kHz is the center of QRP activity! Use only IARU approved frequencies for digimodes! iaru-r1.org/wp-content/uploads/2019/08/hf_r1_bandplan.pdf Kar
- /archives//html/Topband/2022-02/msg00109.html (7,717 bytes)
- 7. Re: Topband: Skirted vertical antennas for MF broadcast (score: 1)
- Author: <ok1cf@atlas.cz>
- Date: Thu, 7 Apr 2022 09:29:06 +0200
- I have been using a similar antenna for 160m for several years. I described it on my QRZ.com website. Karel OK1CF That's a very interesting antenna. I wish it had a spec of freq in the drawing so it
- /archives//html/Topband/2022-04/msg00012.html (8,301 bytes)
- 8. Re: Topband: Sanity Check on K9AY Loop Sensitivity (score: 1)
- Author: <ok1cf@atlas.cz>
- Date: Mon, 12 Dec 2022 21:17:40 +0100
- Hi Pete, I also had problems with broadcast stations at my 4 EL bidirectional (330°/150°) broadside K9AY arrays 84 meters apart uses three 0° hybrid combiners. The problem was solved by a Hi-Z amplif
- /archives//html/Topband/2022-12/msg00066.html (8,883 bytes)
- 9. Topband: 100th anniversary of radio broadcasting in Czechoslovakia (score: 1)
- Author: Karel Matousek <ok1cf@atlas.cz>
- Date: Sat, 03 Jun 2023 20:47:37 +0200
- A special station of the Czech Radio Club has launched a special broadcast in honour of the centenary of the start of regular radio broadcasting in Czechoslovakia. It operates on the weekend of June
- /archives//html/Topband/2023-06/msg00000.html (6,648 bytes)
- 10. Topband: Top Band Frequencies (score: 1)
- Author: Karel Matousek <ok1cf@atlas.cz>
- Date: Tue, 04 Jul 2023 10:18:10 +0200
- Hi I highly recommend please do not use the exact frequency of the transmitter to two decimal places with TWO ZEROs such as 1825.00 or 18031.00 but rather e.g. 1825.33 or 1831.75. Those exact f
- /archives//html/Topband/2023-07/msg00009.html (6,425 bytes)
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