AmateurRadio.com

Following my last post it is perhaps ironic that for the last few evenings I have been plagued by an increase in QRM.

Trying some JT65 on 40m I was being plagued by S8-S9 of local noise, it is noise I have had regularly (even before the purchase of my PLT devices) so I reconnected up the WiMo QRM Eliminator, which has been collecting dust, to see if I could improve matters.

Using just a short piece of wire as the auxillary 'noise' antenna managed to null out most of it to greatly improve reception. No commentary on the video below but hopefully you can see it working.


Interestingly the noise seems to abate around 11pm when people are off to bed.
Andrew Garratt, MØNRD, is a regular contributor to AmateurRadio.com and writes from East Midlands, England. Contact him at [email protected].

Following my last post it is perhaps ironic that for the last few evenings I have been plagued by an increase in QRM.

Trying some JT65 on 40m I was being plagued by S8-S9 of local noise, it is noise I have had regularly (even before the purchase of my PLT devices) so I reconnected up the WiMo QRM Eliminator, which has been collecting dust, to see if I could improve matters.

Using just a short piece of wire as the auxillary 'noise' antenna managed to null out most of it to greatly improve reception. No commentary on the video below but hopefully you can see it working.


Interestingly the noise seems to abate around 11pm when people are off to bed.
Andrew Garratt, MØNRD, is a regular contributor to AmateurRadio.com and writes from East Midlands, England. Contact him at [email protected].

Sunday, January 10, 2016 at Briarcliffe College in Bethpage, NY

• D-Star and System Fusion
  Randy Gutentag WA2RMZ and Scott Weis KB2EAR
• DMR (Digital Mobile Radio)
  Bernie Hunt K2YO
• SDR (Software Defined Radios)
  Neil Goldstein W2NDG
• Keynote Address
  ARRL Chief Executive Officer Dave Sumner K1ZZ
• Building Your First Ham Station
  Phil Lewis N2MUN
• Basics of HF Operating
  Phil Lewis N2MUN and Mel Granick KS2G

Matt Thomas, W1MST, is the managing editor of AmateurRadio.com. Contact him at [email protected].

Following late fall's very successful 630m Activity / CW Crossband Weekend in November, several enquiries were soon received asking "when's the next one?" I'm happy to announce that the 'next one' will be held on the first weekend of February and will follow a similar format. 

Here is the formal press release describing the event published in the ARRL News:


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US and Canadian radio amateurs and experimenters will join forces in February for the first Midwinter 630 Meter Activity Weekend. The event will get under way on February 6 at 0000 UTC (Friday, February 5, in US time zones) and run through 2359 UTC on February 7.

“This event is being undertaken because of the new and quickly growing interest in present 630 meter activities, both in the US and Canada,” said  ARRL 600 Meter Experimental Group (WD2XSH) Experiment Coordinator Fritz Raab, W1FR. “Much of the interest is in response to the strong likelihood of US amateurs receiving access to the band in the near future, while Canadian hams are eager to learn more about the present level of Amateur Radio activity on their newest ham band.” The activity weekend comes on the heels of a special event operation over the November 13-14 weekend that included participation by US and Canadian radio amateurs.and the Maritime Radio Historical Society (MRHS).

Raab said the two activity nights will offer interested amateurs in both countries an opportunity to experience the 630 meter band and, through cross-band activity with Canadian amateurs, to take part in activity in the MF spectrum. “Our hope is to see this activity become an annual operating event, to be held very winter on the 630 meter band,” Raab said. “For those who may be building for future 630 meter operation, this event will provide an opportunity to test your ‘receive’ capabilities on MF.”

Operation will be from 472 kHz to 479kHz in various modes. The two-way crossband work will be undertaken by several Canadian stations, all on CW. Canadians will operate on a schedule and listen for callers on specific QSX frequencies in the US ham allocations.

Several US Experimental stations also will be in operation throughout the band, in two-way QSO mode with each other, using CW, PSK31, JT9, and QRSS modes. Some stations will also use WSPR and QRSS CW beacon modes.

“The success of this event largely depends upon the participation of as many amateurs as possible,” Raab said. “We hope that you can find a few hours to participate in this unique midwinter event.” Submit reception reports via e-mail to the respective operators or via the ARRL 600 Meter Experiment website.
   

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Hopefully you will be able to participate in the crossband activity by being able to listen on 630m and then able to switch over to HF to transmit. This could involve the use of a separate receiver / transmitter or can often be easily implemented via your transceiver's 'A/B' switch.

No antenna for receiving on 630m? Surprisingly good results can often be had by using a low band wire antenna such as a dipole or inverted-L for listening on 630m ... the antenna does not necessarily need to be resonant. In fact, often times, a non-resonant receiving antenna can provide a better overall S/N ratio than one which is resonant, as these often gather more noise along with signals.

You may want to experiment before hand by listening to many of the numerous U.S. experimental stations operating nightly, mostly in the WSPR mode, between 475.6 and 475.8kHz. Most operators provide a CW identifier following their WSPR transmission but a better way to decode these signals is by installing the latest WSPR software, WSJT-X (freeware), at K1JT's website here. The software works extremely well and is easy to install and get working. If you set the software to 'upload spots', you can share your nightly catches with dozens of other listeners throughout the continent on the WSPRnet website.

courtesy: KB5NJD's 630m Daily Blog

I'll be sending out a few more reminders as the 630m Activity Weekend gets closer but please mark your calendars and make a date to participate, by either sending in your 'heard' reports or by getting on-the-air and working some of the Canadian crossbanders.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

Here is this week’s space weather and geophysical report, issued 2016 Jan 11 0123 UTC.

Highlights of Solar and Geomagnetic Activity 04 – 10 January 2016

Solar activity was at very low to low levels. Very low activity was observed on 04-05 January and 08-10 January while isolated low activity occured on 06-07 January. A pair of C1 x-ray events were observed from Region 2480 (N02, L=125, class/area Eso/190 on 10 Jan) on 06/1137 UTC and 07/0617 UTC, respectively. No Earth-directed coronal mass ejections were observed during the summary period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at high levels throughout the period.

Geomagnetic field activity was at predominately quiet levels on 04-05 January and 08-10 January. On 06 January, activity increased to unsettled to active levels with an isolated period of minor storming (G1-Minor) observed early on the 6th. Unsettled to active conditions persisted through late on the 7th. This increase in activity was due to the presence of a recurrent, positive polarity coronal hole high speed stream (CH HSS). Solar wind parameters, measured at the ACE satellite, indicated an increase in wind speeds early on 06 Jan from about 475 km/s to a peak of 643 km/s at 06/1025 UTC. Wind speeds remained elevated between 575 – 625 km/s through about 07/2000 UTC when a gradual decline to about 430 km/s were observed through the end of the summary period. Total field (Bt) averaged about 5 nT for a majority of the period, but ranged from 7-16 nT from 05/0820 UTC – 06/0131 UTC. The Bz component varied between +/- 4 nT with increased variability recorded between +12 nT to -10 nT from 05/0935 UTC to 06/0022 UTC. The phi angle was in a predominately positive (away for the Sun) orientation throughout the summary period.

Forecast of Solar and Geomagnetic Activity 11 January – 06 February 2016

Solar activity is expected to be at very low to low levels from 11-14 January and from 29 January – 06 February. From 15-28 January, activity levels are expected to increase to low to moderate levels (R1-Minor) due to the return of old active Region 2473 (S21, L=334).

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels on 11-12, 17-22, 26-28 January and 31 January – 02 February. High levels are expected on 13-16, 23-25, 29-30 January and 03-06 February due to enhanced winds from a series of geoeffective CH HSSs.

Geomagnetic field activity is expected to be at unsettled to active conditions on 12-13, 22-23, 28-29 January and 02-03 February with isolated minor storm levels (G1-Minor) likely on 12 and 18 January, all due to a series of recurrent CH HSSs. Quiet to unsettled conditions are expected for the remaining days of the outlook 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/

If you are on Twitter, please follow these two users: + https://Twitter.com/NW7US + https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

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Visit, subscribe: NW7US Radio Communications and Propagation YouTube Channel

AmateurLogic.TV Episode 86 is now available for download.

Peter introduces Satellite TV. Tommy explores FLRig with his Icom IC-7100 and Mac computer. Emile makes a cheap APRS Tracker. George visits a transmitter site in the wilderness and more.

1:15:21

Download
YouTube

George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

Hello, dear listeners! Thank you for tuning into another episode of Linux in the Ham Shack. In this week's episode, your hosts discuss a variety of topics from 600-meter operation to Linux in cars to Star Wars. Our featured segment tonight is a look at PC-to-radio interfaces for digital mode communication. Thanks for tuning into, and hope to see you next time.

73 de The LHS Team

Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].