Search String: Display: Description: Sort:


References: [ 228 ]

Total 228 documents matching your query.

1. Topband: T21MY - No 160 (score: 1)
Author: zl3ix at (
Date: Thu Jun 26 17:46:45 2003
Steve, he was QRV on 1813.5, Wednesday at 0945z, for at least 15 min. I worked him and then he carried on CQ'ing with no takers. He had a good signal here in ZL and I guess there would have been copy
/archives//html/Topband/2003-06/msg00105.html (6,692 bytes)

2. Topband: Shunt feeding caps. (score: 1)
Author: (Greg - ZL3IX)
Date: Mon, 9 Dec 2002 19:42:26 +1300
. and Hi John, I would suggest that the only reason you didn't notice the coax getting warm, is that the dissipation is more distributed. I believe the loss would have been similar to the ceramics. A
/archives//html/Topband/2002-12/msg00122.html (6,905 bytes)

3. Topband: ARRL 160 contest (score: 1)
Author: (
Date: Tue, 10 Dec 2002 22:42:32 GMT
Let me give the point of view of one particular DX station. I went into the shack after supper on Saturday (abt 08z), fully intending to "give it a bash". I tuned around the band to see what there w
/archives//html/Topband/2002-12/msg00171.html (8,295 bytes)

4. Topband: Re:common mode noise (score: 1)
Author: (
Date: Sun, 15 Dec 2002 21:44:53 GMT
Further to Tom's ealier posting on the above, I would recommend that everyone using "low noise" receiving antennas should read the new article on his web site. It is very enlightening. 73, Greg, ZL3I
/archives//html/Topband/2002-12/msg00211.html (6,375 bytes)

5. Topband: Pennant and Equatorial QRN (score: 1)
Author: (Greg - ZL3IX)
Date: Thu, 19 Dec 2002 18:32:32 +1300
Hi Charles, The flag is only 5 dB better in "gain ", meaning that the signal output will be 5 dB greater. The two are almost identical in directivity, which is the important parameter for noise redu
/archives//html/Topband/2002-12/msg00236.html (7,027 bytes)

6. Topband: No ears (score: 1)
Author: (Greg - ZL3IX)
Date: Sat, 2 Nov 2002 08:53:20 +1300
Continuing with the ideas put forward by Herb, one trick I pulled as ZS5K, was to make a remote up converter, which took the Topband signals from the end of my Beverage in a nearby school, and conver
/archives//html/Topband/2002-11/msg00012.html (7,364 bytes)

7. Topband: QRSS on 160m (score: 1)
Author: (Greg - ZL3IX)
Date: Wed, 13 Nov 2002 20:20:33 +1300
I agree with the general flow of opinion on this subject. I would like to see some experiments on Topband using this mode, but in a different part of the band from standard CW, and not counting for n
/archives//html/Topband/2002-11/msg00065.html (7,414 bytes)

8. Topband: Anyone using EH antennas? (score: 1)
Author: (Greg - ZL3IX)
Date: Wed, 13 Nov 2002 20:15:43 +1300
Hi Don, I did some tests at VHF simulating these CFA antennas about 2 and a half years ago, while still in ZS5 land. I reported the results on this Reflector, and you may like to look up the original
/archives//html/Topband/2002-11/msg00066.html (6,959 bytes)

9. Topband: QRSS Beacons on 160m (score: 1)
Author: (Greg - ZL3IX)
Date: Fri, 15 Nov 2002 09:40:23 +1300
Hi Folks, 1) I would be really keen to see a few of these beacons on Topband. I agree that they should be at the top end of the band to avoid interference to DX ops in the bottom part. Surely there c
/archives//html/Topband/2002-11/msg00078.html (8,121 bytes)

10. Topband: "Magic" lamp QRM (score: 1)
Author: (Greg - ZL3IX)
Date: Mon, 7 Oct 2002 17:54:33 +1300
Hi Don, When I made a similar posting on the Reflector a few months back, I received very good advice - Throw the thig away if you can! Unfortunately the one in my life belongs to my neighbour, so I
/archives//html/Topband/2002-10/msg00021.html (7,554 bytes)

11. Topband: Use of the RCS-4 for Remote Beverages? (score: 1)
Author: (Greg - ZL3IX)
Date: Thu, 24 Oct 2002 19:05:30 +1300
Hi Tom et al, A trick I learned from a relay manufacturer a few years back, is to put some DC on the lines being switched. Just a couple of mA from a few volts is enough. It seems that the micro arc
/archives//html/Topband/2002-10/msg00125.html (8,020 bytes)

12. Topband: Touch Lamp (score: 1)
Author: (Greg - ZL3IX)
Date: Sun, 14 Jul 2002 14:32:06 +1200
Hi Guys, I have a particular problem that some of you may be able to help with. = As I have mentioned to one or two of you in personal e-mails, the reason = why I have been rather quiet on Topband is
/archives//html/Topband/2002-07/msg00080.html (7,919 bytes)

13. Topband: PAC test (score: 1)
Author: (Greg - ZL3IX)
Date: Sat, 20 Jul 2002 14:03:29 +1200
Does anyone know if this is true?? Seems Hi John, That's what I understand as well. I have passed an objection on to the organisers. What I also object to is the fact that the test only starts 2 hrs
/archives//html/Topband/2002-07/msg00127.html (6,673 bytes)

14. Topband: Low Band Propagation (score: 1)
Author: (Greg - ZL3IX)
Date: Tue, 21 May 2002 19:29:29 +1200
I have just finished reading a recent publication by Bob, NM7M called "The Big Gun's Guide to Low Band Propagation". In view of the recent debate on power coupling and other propagation mechanisms, I
/archives//html/Topband/2002-05/msg00144.html (7,132 bytes)

15. Topband: Geomagnetic absorption of horizontally polarized antenna signals? (score: 1)
Author: (Greg - ZL3IX)
Date: Tue, 30 Apr 2002 17:25:20 +1200
And even better in Bob NM7M's recently published book "The Big Gun's Guide to Low Band Propagation" 73, GReg, ZL3IX
/archives//html/Topband/2002-04/msg00072.html (8,875 bytes)

16. Topband: Re: DX Pileup Practices (score: 1)
Author: (Greg - ZL3IX)
Date: Mon, 4 Mar 2002 09:21:37 +1300
country's by DX of band You really amaze me with this statement, Bob. A large percentage of the recent expeditions would have been completely unworkable for me, on any band, let alone Topband, if th
/archives//html/Topband/2002-03/msg00038.html (8,595 bytes)

17. Topband: Re: Bridges and BC interference (score: 1)
Author: (Greg - ZL3IX)
Date: Fri, 15 Mar 2002 16:50:42 +1300
I don't have one of these devices myself, but if I did, and it needed a BC filter, I would open it up and place the filter between the RF bridge and the detector. That way the measurement accuracy sh
/archives//html/Topband/2002-03/msg00142.html (7,917 bytes)

18. Topband: Let's try stuff (score: 1)
Author: (Greg - ZL3IX)
Date: Tue, 19 Feb 2002 19:41:59 +1300
system Clive, As I am sure you are aware, it's not only the close-in ground system that affects the effectiveness of the vertical, but the conditions in the Fresnel zone as well. Most amateurs are n
/archives//html/Topband/2002-02/msg00114.html (9,576 bytes)

19. Topband: Polarisation and Power Coupling (score: 1)
Author: (Greg - ZL3IX)
Date: Sun, 24 Feb 2002 12:25:47 +1300
There is not much doubt about vertical polarisation being better in ZL, Tom, but Rex and I are about 10 deg further south than Steve. Distance between Steve and ZL is over 6 000 km, so the two can't
/archives//html/Topband/2002-02/msg00152.html (7,630 bytes)

20. Topband: TOP BAND RECEIVING ANTENNAS (score: 1)
Author: (Greg - ZL3IX)
Date: Mon, 7 Jan 2002 19:59:30 +1300
to some Hi Oms, Having lived in a high QRN area ( ZS-land) for many years, I would like to give my comment. In that sort of situation you are looking to try and reduce the width of the forward lobe,
/archives//html/Topband/2002-01/msg00037.html (8,126 bytes)

This search system is powered by Namazu