Here is this week’s space weather and geophysical report, issued 2016 Feb 01 0641 UTC.

Highlights of Solar and Geomagnetic Activity 25 – 31 January 2016

Solar activity was at very low to low levels during the period. Low levels were observed from 25-29 January with Regions 2488 (N02, L=320, class/area Dai/240 on 25 January) and 2489 (N10, L=253, class/area Eko/300 on 29 January) producing the majority of the C-class flaring. The largest flare of the period was a C9/1f at 28/1202 UTC from Region 2488. Region 2488 was in slow decay over the period. Region 2489 continued to exhibit growth through 28 January and slowly decayed thereafter. Several filament eruptions, and subsequent coronal mass ejections (CMEs), were observed during the period, but none had an Earth-directed component.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at high levels from 25-27 January, moderate levels on 28 January, and normal levels from 29-31 January. The maximum flux of the period was 2,117 pfu observed at 26/1500 UTC.

Geomagnetic field activity was at mostly quiet levels throughout the period with isolated unsettled periods on 27-28 and 31 January and an isolated active period observed late on 31 January. Solar wind parameters were in decline as the period began under the waning influence of a negative polarity coronal hole high speed stream (CH HSS). Solar wind speed gradually decreased from approximately 480 km/s early in the period to around 260 km/s by 30 January before increasing slightly to 300 km/s by the end-of-the-period. A solar sector boundary crossing into a positive (away) orientation occurred at approximately 27/0834 UTC, accompanied by a slight increase in total field (Bt) measurements to 9 nT on 27 and 28 January. On 31 January, another increase in Bt to 10 nT was observed along with a prolonged period of southward Bz. The geomagnetic field responded with isolated active levels to end the period.

Forecast of Solar and Geomagnetic Activity 01 February – 27 February 2016

Solar activity is expected to be at very low to low levels with a chance for M-class flares (R1-R2, Minor-Moderate) from 03-25 February with the return of old Regions 2484 (N08, L=094) and 2488 (N02, L=320).

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 with high levels likely on 04-07, 09-15, and 18-23 February as a result of CH HSS influence.

Geomagnetic field activity is expected to be at unsettled to active levels on 01 February due to continued effects from a prolonged period of southward Bz. Unsettled to active levels are likely from 02-04, 08-09, and 17-20 February due to recurrent CH HSS activity.

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First of all, thank you to the 2,015 people from all over the world who entered the giveaway. That’s a record number of entries for us!

Now for the moment you’ve been waiting for… the winners!  OK, here they are:

We will contact the winners by e-mail with further instructions today. If you are one of the 41 winners, please reply quickly so that we can get your prize on the way to you! If you don’t receive your e-mail today, please double-check your spam folder to make sure it didn’t end up there.

Here are the prizes:

One (1)
HackRF One SDR transceiver bundle
Estimated retail value $500 each
Contains everything you need to listen to, and transmit, HF, VHF & UHF (1 MHz to 6 GHz) with the HackRF One from Great Scott Gadgets, down to 100kHz or lower! Standard bundle includes HackRF, Ham It Up, Antenna Balun, 2 SMA interconnect cables and an SMA to BNC adapter. Pre-installed in a black aluminum enclosure and with the RF shield.

Three (3)
NESDR XTR+ HF bundles
Estimated retail value $140 each
Each kit will contain an SDR, an upconverter to enable HF reception, and a cable to connect the two units.

Two (2)
NESDR Mini 2+ HF bundles
Estimated retail value $125 each
Each kit will contain an NESDR Mini 2+ SDR with 0.5PPM TCXO, MCX-connected antenna for VHF, an upconverter to enable HF reception, and a cable to connect the two units.
 Ten (10)
NESDR XTR+ sets
Estimated retail value $60 each
NooElec NESDR XTR+ SDR & DVB-T USB set, including GPS-rated +/- 0.5PPM TCXO, quality telescopic antenna and remote control. Genuine Elonics E4000 tuner is guaranteed.

Ten (10)
NESDR Nano 2+ sets
Estimated retail value $30 each
Same form factor as the Nano 2 but with a TCXO!

Fifteen (15)
NESDR Nano 2 sets
Estimated retail value $25 each
The NESDR Nano 2 is based on the R820T2 tuner IC made by Rafael Micro, which means an approximate tuning range of 25MHz-1700MHz and improved selectivity and sensitivity in most frequency ranges versus R820T-based SDRs. There is also an RTL2832 (RTL2832U) IC on board of course, to provide basic demodulation and USB interface functionality

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

Another Arduino project I’ve been working on is a DTMF decoder used to control a relay board. Using a ham radio receiver, I can switch lights, radios, computers…anything…on or off from miles away. Here’s the video:

Here’s the wiring diagram. And here’s the Arduino code.

I’m using a Sainsmart 4 relay board, although pretty much any relay board would work. You’ll also need a MT8870 DTMF decoder – these run about $2 on ebay. And of course, you’ll need an Arduino Uno. Again, check out ebay for these as well. The total cost here should be less than $12 and you’ve got a fully functioning radio controlled DTMF relay controller!

Michael Brown, KG9DW, is a regular contributor to AmateurRadio.com and writes from Illinois, USA. Contact him at [email protected].

Another Arduino project I’ve been working on is a DTMF decoder used to control a relay board. Using a ham radio receiver, I can switch lights, radios, computers…anything…on or off from miles away. Here’s the video:

Here’s the wiring diagram. And here’s the Arduino code.

I’m using a Sainsmart 4 relay board, although pretty much any relay board would work. You’ll also need a MT8870 DTMF decoder – these run about $2 on ebay. And of course, you’ll need an Arduino Uno. Again, check out ebay for these as well. The total cost here should be less than $12 and you’ve got a fully functioning radio controlled DTMF relay controller!

Michael Brown, KG9DW, is a regular contributor to AmateurRadio.com and writes from Illinois, USA. Contact him at [email protected].

A recent posting to Yahoo's 'NDB List Group' by Mike, an ardent NDB DXer in the UK (Sussex), announced the recent completion of his four-part video series describing the installation and testing of a new PAØRDT active antenna.


If you may be contemplating the installation of an active antenna such as this, or perhaps making a start at DXing the NDB band or listening on 630m, then you might enjoy following Mike's journey as he demonstrates that living in the noisy suburbs need not keep you from enjoying the LF/MF bands. Mike includes some interesting tests involving his grounding system versus noise ingress and the results of keeping the electrical main's ground isolated (or not) from the antenna cable's ground.

The PAØRDT active whip is available from PAØRDT himself or if you are handy with a soldering iron, you might choose to build the same antenna in your workshop. These simple yet highly effective receiving antennas are being used successfully by hundreds of listeners all over the world and for their size provide some pretty amazing performance.












Much more information on the PAØRDT e-probe antenna may be found here in a previous blog posting. To see more of Mike's videos, you can visit his interesting Youtube Channel here.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

It’s been a while since I’ve done a January VHF contest from a mountaintop so I decided to give it a try from Mount Herman this year. The ARRL recently changed the contest rules to allow the use of the national 2m fm calling frequency for contests. See Coming Soon: 146.52 MHz in ARRL VHF Contests. I wanted to see how this change would play out in practice when doing a combination VHF Contest plus SOTA activation. In previous attempts, I had to vector the SOTA activity to another 2m fm frequency for it to be a legal contact for the contest. The SOTA + Contest operation is attractive because it has all the elements of a fun SOTA hike coupled with the increased activity of a VHF contest. The contest brings out the weak-signal folks with very capable stations, increasing the probability of making some good DX contacts.

 

Joyce KØJJW and I hit the trail at 10:30 AM local with the goal of being at the summit around noon (1900 UTC) for the start of the ARRL contest. The trail was icy, but manageable with the gripping devices on our boots. The weather was chilly but not bad for January. At the summit, I configured my FT-60 handheld radio for 146.52 MHz using a 2m half-wave vertical. My first call netted a QSO with Tim, KAØMWA in Castle Rock. I worked a few other stations on 2m fm and then set up the 2m ssb station (FT-817 plus Arrow II antenna). On 144.200 MHz SSB, I contacted two Wyoming stations in grid DN71, about 140 miles away. I also gave a call on 446.0 MHz fm and worked W3DHJ and KE0HBW mobile.

Freq    Mode    UTC     Call     Grid
146.52    FM    1900    KA0MWA   DM79
146.52    FM    1902    N0AXK    DM79
146.52    FM    1905    N0LP     DM79
146.52    FM    1905    K0GPA    DM79
146.52    FM    1905    WG0AT    DM79
146.52    FM    1920    N0ISB    DM78
146.52    FM    1923    N0LEA    DN70
144.2    SSB    1932    WY7KY    DN71
144.2    SSB    1935    K0ALE    DM79
144.2    SSB    1938    AB0YM/R  DM79
144.2    SSB    1939    KG0RP    DN70
144.2    SSB    1940    WA7KYM   DN71
144.2    SSB    1942    KC4YLV   DM79
446.0    FM     1948    W3DHJ    DM78
144.2    SSB    1949    WE7L     DM79
144.2    SSB    1951    N0SP     DM79
446.0    FM     2000    KE0HBW   DM79

The wind was strong at the summit and kept blowing everything around, making it difficult to operate the radio and manage the antennas. After an hour of operating, I decided to QRT and head on down. I know I missed a bunch of potential contacts, especially having not gotten on 70 cm and 6m ssb.

Except for the short operating time, the operation played out as expected. I was able to work the SOTA folks and 2m fm enthusiasts on 146.52 MHz. I made it a point to not hog the calling frequency, as there are quite a few folks that monitor there. Switching over to 2m ssb, I worked the contest crowd, typically with more capable vhf stations. My score is a whopping 114 points, in the single-op portable category.

Thanks to everyone that got on the air to play radio that day!

73, Bob KØNR

The post January VHF Contest Plus SOTA appeared first on The KØNR Radio Site.

Bob Witte, KØNR, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. Contact him at [email protected].

Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at http://www.hamweekly.com.