More Low Noise Vertical (LNV) Construction
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| New LNV At WG2XKA |
The low-noise vertical discussed here previously, has recently been implemented by at least three of the 630m experimental stations. John, WG2XKA / WA3ETD, along with Ken, WG2XXM / K5DNL and John, WG2XIQ / KB5NJD, have all constructed versions of this receiving antenna after reading about the details here.
John's antenna, pictured above, is described in more detail here, along with some nice pictures of his matching transformer.
All stations report good results with the antenna so it may be something you might want to consider if your present receiving antenna is a noise-collector.
For those interested in getting started on 630m, John (WG2XIQ), has a ton of inspiring information available on his website here as does John (WG2XKA) on his site here.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].
CQ-DATV mags free
See http://cq-datv.mobi/ebooks.php .
CQ-DATV is available for free download. I have not tried amateur TV but some remarkable results are being achieved by DATV in the 146-147MHz band. Like all things in our hobby, you can only do so much. I think the use of digital techniques has given amateur TV a new lease of life.
Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.
Weekly Propagation Summary – 2015 Nov 30 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2015 Nov 30 0318 UTC.
Highlights of Solar and Geomagnetic Activity 23 – 29 November 2015
Solar activity was at very low levels with the exception of 23 and 25 November. Region 2454 (N14, L=121, class/area Dai/150 on 23 Nov) produced a few C-class events, the largest a C8/1f at 23/0228 UTC. Between 24/1130-1530 UTC, SDO/AIA 193 and 304 imagery observed a 20 degree long eruption, centered near S10W00, along a NW to SE oriented filament channel. No Earth-directed coronal mass ejections were observed during the period.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached moderate levels on 23-27 November but decreased to normal levels on 28-29 November.
Geomagnetic field activity was at quiet levels from 23-26 November. Mostly quiet levels were observed with a few isolated unsettled periods on 27-29 November and a single active period observed during the 29/2100-2400 UTC synoptic period due to prolonged negative Bz and slightly elevated solar wind speed.
Forecast of Solar and Geomagnetic Activity 30 November – 26 December 2015
Solar activity is expected to be at very low to low levels throughout the forecast period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be normal to moderate levels for the majority of the period with the exception of 03-05 December, 08-09 December and 11-15 December following several recurrent coronal hole high speed streams (CH HSS).
Geomagnetic field activity is expected to be unsettled to active on 30 November-02 December with minor storm periods expected on 01 December due to a recurrent positive polarity CH HSS. Quiet to unsettled levels are expected from 03-05 December. Isolated active periods are likely again on 06-07 December and 10 December as two subsequent positive polarity CH HSSs become geoeffective respectively. Quiet to unsettled conditions are expected to dominate the remainder of the forecast period.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
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Next Stage
- I've been working 40 years and that's enough
- I've been married 40 years and that's, well, that's good
- Both of my sons have lost their hair
- My oldest grandson is 6' 2" tall
Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].
Next Stage
- I've been working 40 years and that's enough
- I've been married 40 years and that's, well, that's good
- Both of my sons have lost their hair
- My oldest grandson is 6' 2" tall
Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].
My CQ WW CW contest overview.
| The QRP setup |
I did have some "Murphy" moments such as…….I was not able to get my MFJ mag loop to tune at all at the start of the contest. Very quickly I found it was a very loose PL-259 connected on the rear of the loop's control box. Then for some reason N1MM+ set my CQ zone as 5 and not 4 and I did not click into this until about 10 contacts into the contest. Finally on the K3 there is a "test" setting and I use it to check macros without transmitting. Then old age had me forget to turn off the test mode, this found me thinking I was calling stations but was transmitting 0 watts….. Now that's QRP!!
Since I am operating QRP and using small MFJ loop antenna on the balcony my operating style was as follows
- I Use my VFO B to save a strong DX station that at the time has a huge pileup going. This stops me from wasting time trying to break the pile. Better to come back when the crazy pileup is gone. This worked great when I came across a Senegal station.
- Even when a station is at an S2 level but is just calling and listening my 5 watts can and did many times make it through for a contact.
- I don't use a spotting network as I found most of these stations have a huge pileup but I do have an Elecraft P3. Using some hardware and software my P3 is seen on a 19 inch monitor and I am able to point and click on signals. My K3 then moves to that signal this allows me to see the activity on the band and Search and pounce these stations.
- When possible stay with a band such as 15m were my MFJ loop does not need to be retuned at all across the whole CW portion.
- Stick with my 250hz Inrad 8 pole CW filter so I can get between tight signals and only hear the op I want to contact.
In my post I am going to go into detail about my software I am now using and finding to be great for contesting and general QSO's It's now time to grab some eats and relax.
Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].
Aurora On The Move

A recent posting to the Pacific Northwest VHF Society's reflector brought my attention to an interesting article describing the southward migration of the auroral zone.
According to the research paper published in the Proceedings of the National Academy of Sciences, the earth's magnetic field is gradually growing weaker, thus affecting its interaction with the solar wind.
The paper indicates that our present, abnormally high magnetic field, forces this interaction (auroras) to higher latitudes and as the field strength gradually weakens to more long-term average levels, auroras will be seen further south than we have been used to. The field has already weakened by about 10% over the past two hundred years and will continue to do so. Apparently it's all related to the regular 'flipping' of our magnetic field, with the most 'recent' flip taking place about 780,000 years ago.
So what does this mean for radio amateurs? Probably not a lot, in the immediate future but the unwanted effects to disturbances in the geomagnetic field will eventually be felt further and further to the south. Radio propagation in southern British Columbia has always been particularly sensitive to even very small disturbances in the field, particularly on the LF and MF bands. I am constantly amazed at how regions only 150 miles to the south or southeast of me are so much less affected than here, in the southern fringes of the auroral zone. VE7's don't claim to be in radio's 'black hole' without good reason.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].















