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Total 16 documents matching your query.

1. Topband: 160m noise (score: 1)
Author: "Don Moman VE6JY" <ve6jy.1@gmail.com>
Date: Mon, 3 Dec 2007 20:12:30 +0000
Like many other areas, the noise floor here has been creeping upwards over the years. I am in a rural farm setting but heavy industry rolls closer every year. While I have methods to address or at le
/archives//html/Topband/2007-12/msg00024.html (8,496 bytes)

2. Re: Topband: Daylight QSO's during the SP (score: 1)
Author: "Don Moman VE6JY" <ve6jy.1@gmail.com>
Date: Tue, 1 Jan 2008 04:09:27 +0000
In past years I routinely hear 1530 KFBK Sacromento CA from Edmonton area during the midwinter and quiet conditions. However with the quiet conditions we had in early November of 2007, I heard a numb
/archives//html/Topband/2008-01/msg00000.html (7,261 bytes)

3. Re: Topband: Source for wire? (score: 1)
Author: "Don Moman VE6JY" <ve6jy.1@gmail.com>
Date: Thu, 10 Apr 2008 16:55:33 +0000
that of wire. great one !! any case neither would be my choice for long lasting radials, depending on your soil characteristics. I'd visit the scrap yard first at the local telco and look for multipa
/archives//html/Topband/2008-04/msg00023.html (8,743 bytes)

4. Re: Topband: Power Line Noise (long) (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Thu, 26 Nov 2009 22:22:56 +0000
I know of two types of noise (there may be others) that typically generate low frequency noise and their sprectra into the VHF and UHF ranges are quite limited - a micro arc inside a transformer and
/archives//html/Topband/2009-11/msg00420.html (9,176 bytes)

5. Re: Topband: 1820 BCB + My Problem Partially Solved (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Sun, 25 Dec 2011 17:37:32 +0000
MW stations have been legally broadcasting in the so called X band from 1610 to 1710 since about 1997. * noticed that in addition to the spurious AM stations on 1840, there were* * several BC AM sign
/archives//html/Topband/2011-12/msg00546.html (9,221 bytes)

6. Re: Topband: Propagation last evening (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Sat, 25 Feb 2012 22:39:30 +0000
was mostly what I'd call a normal evening, i.e. not very good. The bigger stations on the east coast are workable (VY2ZM and N4PN were consistently loud), Europe is a dream (and yes, we consider VO1
/archives//html/Topband/2012-02/msg00395.html (9,927 bytes)

7. Re: Topband: Another take on power line noise hunting (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Sat, 5 Jan 2013 19:41:55 +0000
Similar observations here Paul in my never ending battle to keep on top of the noise situation in my rural area - mainly 14.4 kv distribution and some 25kv 3 phase stuff. Many sources top out above 1
/archives//html/Topband/2013-01/msg00035.html (15,041 bytes)

8. Re: Topband: BCI (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Tue, 4 Mar 2014 02:35:36 +0000
It is unusual for AM BCB signals on a 10 khz raster to produce signals every 5 khz. It is relatively simple to insert a MW rejection filter in a RX ant loop which should alleviate or cure the problem
/archives//html/Topband/2014-03/msg00027.html (10,536 bytes)

9. Re: Topband: 8 circle: DXE vs Hi-Z (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Thu, 18 Dec 2014 04:53:02 +0000
Well I disagree that gain isn't important. Maybe you topbanders in the better areas of propagation can afford to throw away many db to get a better rdf, but that sure isn't the case up here in mid-no
/archives//html/Topband/2014-12/msg00282.html (17,052 bytes)

10. Re: Topband: RX ant-Frozen ground (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Wed, 7 Dec 2016 22:29:56 +0000
Hi Steve; Even though I am about 80km from the nearest MW transmitter, BCB IM is a constant issue here. Considerably worse in the winter. I am always VERY suspicious that any crankup towers would be
/archives//html/Topband/2016-12/msg00139.html (13,809 bytes)

11. Re: Topband: V84SAA QSL (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Wed, 17 Apr 2019 10:11:21 -0600
Hand delivered to me at Visalia DX convention.... _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
/archives//html/Topband/2019-04/msg00076.html (7,622 bytes)

12. Re: Topband: Solar Cycle Fun (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Mon, 4 Nov 2019 16:55:16 +0000
Steve, I was hearing some audio on a few on the Eu MW channels around 0040 ut and then saw the spot for FR4NT and checked, and was hearing bits of signal. Perhaps peaking around 0100. As usual the pe
/archives//html/Topband/2019-11/msg00005.html (9,260 bytes)

13. Re: Topband: Checking the integrity of 75 ohm cable (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Fri, 16 Oct 2020 18:40:49 -0600
Try to find/borrow a older Tek 1502 TDR, they are inexpensive on ebay (~$100) and show way more detail than any of the analyzers I've tried. 73 Don VE6JY _________________ Searchable Archives: http:/
/archives//html/Topband/2020-10/msg00112.html (9,953 bytes)

14. Re: Topband: 1940 kHz Intruder (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Wed, 4 Jan 2023 18:02:44 -0700
This should be a good candidate for the KIWI network of SDR's and their TDOA transmitter locating ability... _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflec
/archives//html/Topband/2023-01/msg00016.html (11,841 bytes)

15. Re: Topband: Comparing antennas was: Re: 160m loaded tower (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Wed, 18 Jan 2023 10:32:48 -0700
Even better is to use S Meter dropdown in the KIWI extensions menu.... it gives a strip chart style presentation that can be configured to easily show small differences in signal levels, far easier t
/archives//html/Topband/2023-01/msg00101.html (11,709 bytes)

16. Re: Topband: High Impedance RX Antennas (score: 1)
Author: Don Moman VE6JY <ve6jy.1@gmail.com>
Date: Mon, 3 Apr 2023 11:33:10 -0600
A used Tek 1502 TDR is the "gold standard" to me anyway and they can be quite cheap at flea markets etc. They are "arm held" and self contained portable so ideal for up to 1000' runs and have enough
/archives//html/Topband/2023-04/msg00012.html (15,017 bytes)

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