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References: [ +from:john.devoldere@innet.be: 61 ]

Total 61 documents matching your query.

1. TopBand: Beverage transformer core question (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Thu, 03 Sep 1998 20:41:08 +0100; Hello Dave: I have used the BBR7731 cores for about 15 years, and have made hundreds of transformers using these cores and NEVER had one returned to me. I recently measured the insertion loss of thes; /archives//html/Topband/1998-09/msg00014.html (10,669 bytes)
2. TopBand: de ON4UN (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Tue, 08 Sep 1998 14:01:02 +0100; Hello Tom, hello Topbanders! Today I measured a number of 9/1 transmission line-type transfomers made with Amidon cores with 75 and 43 material. For the tests I used a Rhode & Schwarz Network Analyse; /archives//html/Topband/1998-09/msg00049.html (8,601 bytes)
3. TopBand: 2 wire beverages (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Wed, 16 Sep 1998 18:41:08 +0100; Hi Dave: Impossible... If receiving off the far end (where normally the terminating resistor is), the two parallel wires have in-phase currents. The push-pull transformers have NO output, but the out; /archives//html/Topband/1998-09/msg00114.html (7,546 bytes)
4. TopBand: Battle Creek Special References (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Tue, 04 Aug 1998 13:10:21 +0100; Hello all! I am looking for an as complete as possible reference list for the Battle Creek special antenna: on which expeditions was it used? Anyone who has the info, please forwrad. I looked on the; /archives//html/Topband/1998-08/msg00052.html (6,904 bytes)
5. TopBand: H40AA on the two Low Bands (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Sat, 04 Apr 1998 19:32:43 +0100; Hello Fellow Low-banders Very recently I read some e-mail from Joerg YB1AQS, from the framous ZL7DK team, in which he said: "As we've found all the years - the 160m antenna has if possible to be the; /archives//html/Topband/1998-04/msg00034.html (9,254 bytes)
6. TopBand: Frequencies on 160 (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Tue, 07 Apr 1998 09:44:30 +0100; We are currently negociating new frequencies for topband with the Belgian authorities. In order to be well prepared, I would like to find out the exact frequencies allowed in the other European count; /archives//html/Topband/1998-04/msg00074.html (7,682 bytes)
7. TopBand: [CQ-Contest] Antenna Electrical and Physical Modeling (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Sun, 01 Mar 1998 22:11:11 +0000; My YAGI design software, which has been around for many years now, includes all the physical design aspects, including element stress, element sag, boom stress, wind loading, wind balance, weight bal; /archives//html/Topband/1998-03/msg00007.html (12,698 bytes)
8. TopBand: Re: [3830] KZ5MM CQ-160 SSB Alligator Explanation! (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Tue, 03 Mar 1998 21:07:53 +0000; Chuck: On 160 a Beverage muist be at least 100 ft (strict minimum) from a bigg transmit antenna. Otherwisethe RF from the TX antenna couples into the Beverage. You can of course tune it out by usingh; /archives//html/Topband/1998-03/msg00039.html (11,462 bytes)
9. TopBand: KZ5MM Noisy Beverage (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Thu, 05 Mar 1998 21:37:21 +0000; Hi Earl: The elevated radials are just one particular condition. I explained in my earlier mail that the vertical must be near resonance. That is the valid reason. My 160 m vertical uses only buried; /archives//html/Topband/1998-03/msg00095.html (10,336 bytes)
10. TopBand: KZ5MM Noisy Beverage (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Fri, 06 Mar 1998 07:14:48 +0000; What Jon describes confirms in detail what I stated in my earlier mail: it all depends whether or not the TX antenna remains RESIONANT during reception. So in most cases (depending on the feed system; /archives//html/Topband/1998-03/msg00098.html (13,185 bytes)
11. TopBand: Antenna separation (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Fri, 06 Mar 1998 07:33:33 +0000; This testimony als confirms my earlier message. The TX antenna must be resonant to re-radiate. The length and the termination of the feed line on RX, in allmost all cases plays an important role. TTh; /archives//html/Topband/1998-03/msg00099.html (10,408 bytes)
12. TopBand: Questionnaire de ON4UN (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Fri, 27 Mar 1998 23:09:42 +0000; Dear Fellow Low Band DX-ers. I am making progress with the new version of the LOW BAND DX-ing book. That's why you don't hear me on the air. Some months ago I circulated a questionnaire to most of yo; /archives//html/Topband/1998-03/msg00501.html (9,301 bytes)
13. TopBand: sloping parasitic array (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Sun, 29 Mar 1998 22:12:31 +0100; Isn't that what I said without modelling ? I think it is dangerous to base all our knowledge exclusively on the results of modelling! The technical guys should know the answer to such question withou; /archives//html/Topband/1998-03/msg00513.html (10,901 bytes)
14. TopBand: New edition of ON4UN's book (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Sun, 01 Feb 1998 15:08:05 +0000; Dear Top banders: I am curently re-writing the LOW BAND DX-ing book. Some of you have received a questionnaire from me by e-mail. I would hate to have left out anyone who could help me with interesti; /archives//html/Topband/1998-02/msg00002.html (8,421 bytes)
15. TopBand: Computer programs (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Tue, 03 Feb 1998 14:14:47 +0000; Dear Friends Top-banders: I know of a two computer programs that address the issue of aurora with respect to propagation. There may be more programs that I do not know about. If you know if any such; /archives//html/Topband/1998-02/msg00027.html (7,826 bytes)
16. TopBand: ZL long path from Europe (160/80m) (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Thu, 05 Feb 1998 23:41:17 +0000; This message is addressed especially to top band and 80 meter DX-ers in Europe. During many, many year of DX-ing on 80 meters (more than 30 years) I have worked ZL's at our sunrise at about every day; /archives//html/Topband/1998-02/msg00059.html (8,853 bytes)
17. TopBand: LOW BAND DX-ING book (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Sat, 17 Jan 1998 18:43:37 +0000; Hello fellow low band DX-ers, I have started working on the manuscript of a new update of the LOW BAND DX-ING book. If you have any anectotes, any technical information, any antenna design, anything; /archives//html/Topband/1998-01/msg00172.html (7,770 bytes)
18. TopBand: Propagation Prediction Programs (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Sun, 18 Jan 1998 20:25:05 +0000; Dear Friends, Top band DX-ers, I would like to find out from all of you, if you use any kind of Propagation Prediction Pograms in your DX-ing on top band, and also (if applicable) on 80 meters. I am; /archives//html/Topband/1998-01/msg00184.html (7,934 bytes)
19. TopBand: DX EDGE (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Tue, 20 Jan 1998 22:56:06 +0000; Hi there: Anyone knows if the DX-Edge is still available? Do they have a Web page, or does anyone know an e-mail address? Tks es 73 John, ON4UN ** * John Devoldere, ON4UN, AA4OI, OT8T * * e-mail: joh; /archives//html/Topband/1998-01/msg00215.html (7,419 bytes)
20. TopBand: JPS ANC-4 (score: 1): Author: john.devoldere@innet.be (John Devoldere (ON4UN)); Date: Wed, 21 Jan 1998 23:56:09 +0000; Hi top-banders! Can anyone tell me where I get info on the JPS ANC-4 Antenna Noise Canceller? Anyone has exp[erience with it on 160. I'd like to try it for canceling my chemical plant noise? 73 John,; /archives//html/Topband/1998-01/msg00227.html (7,496 bytes)

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