Posts Tagged ‘Elecraft K3’
Solar storms VS QRPp
This week we all have seen sunspot 1515 working overtime producing solar flares. It has been some time since a sunspot has consistently produced M class flares sometimes 2 or 3 in the same day. As amateurs we like to see rising sunspots, rising Flux numbers and a falling K index. ( as a side note this link is a great index for all those propagation words you wonder about)...BUT....along with an active sun also can come increased solar flare activity, increased solar wind which can bring a downturn for radio conditions. As a QRP/QRPp station I take these conditions as a challenge I also understand that during these times for me DX may mean contacts in the U.S. This week I have tried to get on the radio for a short time each evening. Using the Reverse Beacon Network (RBN) has been a great help giving me an idea which bands were open and just where my CW signal was being heard. Below is the results of one of my RBN sessions
K3MM in M.D. 21dB
WZ7I in P.A. 18dB
K1TTT in M.A. 11dB
KB9AMG in W.I. 9dB
Most of the time I would be heard in Europe but with conditions the way they are the U.S. seems to be my DX destination for the time being. I fired up the K3 along with DxLabs. Right off the bat I saw lots of spots for Europe but was not able to hear them on this side of the pond. I then heard an S5 signal from SM5EPO from Sweden. I knew conditions were not that great and after all the RBN confirmed that on 20m's it was the U.S only.........So I dropped the K3's power to 100mW's Heee Heee Heee and gave it a go. SM5EPO came back to me and with a few repeats the contact was complete at 39,111 miles per watt. In the past when conditions were good and I was making QRPp contacts and logging the miles per watt I wanted to see how I would do if conditions were not ideal.
20m report
NY3A in P.A. 11dBK3MM in M.D. 21dB
WZ7I in P.A. 18dB
K1TTT in M.A. 11dB
KB9AMG in W.I. 9dB
Most of the time I would be heard in Europe but with conditions the way they are the U.S. seems to be my DX destination for the time being. I fired up the K3 along with DxLabs. Right off the bat I saw lots of spots for Europe but was not able to hear them on this side of the pond. I then heard an S5 signal from SM5EPO from Sweden. I knew conditions were not that great and after all the RBN confirmed that on 20m's it was the U.S only.........So I dropped the K3's power to 100mW's Heee Heee Heee and gave it a go. SM5EPO came back to me and with a few repeats the contact was complete at 39,111 miles per watt. In the past when conditions were good and I was making QRPp contacts and logging the miles per watt I wanted to see how I would do if conditions were not ideal.
It’s time for surgery………..
| Ready for action |
| Diode to be removed |
| Fans removed |
| KPA3 removed |
very little trouble. Installing the new one was another story and it did take me several attempts. When all was said and
| Old F2 and RFC 48 |
| Ready for new parts |
instructions did say the KPA3 unit did not have to be removed if you were very very careful it could be done. Not feeling at all brave out came the KPA3 unit as well. The inductor and resettable fuse that had to be replaced were in plan view and HUGE compared to the SMT diode. I now had to DE-solder the two components and this is were the Hakko 808 was stellar. In under 30 seconds both component were
| Great tool to have |
| back home and working |
| New parts installed |
| Oliver gives the ok to power up |
Jumping Heliophysics Batman……..
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| M class solar flare letting go |
Bz was way in the negative which is not good. The rise in solar wind and K index numbers pointed to a solar flare. The sun sure has been very busy on June 28th M2.4 class flare, June 29th M2.2 flare and now today two flares M1.0 and M1.6 class.
So in a nut shell things are very busy in space in such a way that radio is affected here on earth!! I have been using a less power as possible mind set here at VE3WDM to see how many miles per watt I can get. It seems I may have to chance the game up a little....see how many contacts I can make compared to the size of solar storm that is affecting us.
In closing let me know how this conditions are affecting you in your ham location. Oh and a side note to all those who live in the high latitude parts of the world.....enjoy the Auroras this evening.
Evening radio time
Last week at VE3WDM the radios were off all week as we had relatives visiting from England. Julie and I took the week off to take them touring it was traveling each day and resting during the evening. This week I have been able after dinner to get on the radio for about an hour each night. I was not expecting much as the solar conditions have gone downhill. The sunspots along with the flux are now in the single digits.
2) HA6OA On 20m contact made with 5watts. He was only S2 but using the Diversity receive option on the K3 along with the Audio Peak filter (APF) really helped.
On 17m I did have a very good copy on CO8LY from Cuba so I gave him a go with 1 watt.....but nothing. I eventually rolled the power up to 5 watts but he was still unable to hear my signal. Funny how Poland and Hungary were no trouble with 5 watts but Cuba was a no go for me this time.
I also heard 6Y5WJ from Jamaica again on 20m but there was a huge pileup waiting to contact him so I moved on.
Tuesdays events
1) HA6OA On 20m was heard again but this time I reduced my power to 1 watts and gave him a go. With a solar flux of 94 and sunspots at 14 I thought..."what the heck" He came back to me on the first call and that gave me 4463 miles per watt contact.
2) SP3GXH on 20m this time I was feeling giddy from my last QRP contact so I dropped my power down to 500mW's and tried my luck!! He came back to me on my first attempt and that made it 8338 miles per watt contact.
I was only able to make 2 short contacts as I got home late from work and lots had to be done at home before any radio time so it was late and I do have to get up early so I pulled the plug for the night. It was good to know that even with the disappointing propagation I was still able to make at least one QRPp contact. My Hendricks 41dB attenuator kit has not come in as of yet but when it does I am going to go for contacts with less than 100mW's and see how that works out for me.
The last two days on the radio
Monday's events
1) HF2012EFC On 20m contact made with 5 watts (special event station during the European Football Championship)2) HA6OA On 20m contact made with 5watts. He was only S2 but using the Diversity receive option on the K3 along with the Audio Peak filter (APF) really helped.
On 17m I did have a very good copy on CO8LY from Cuba so I gave him a go with 1 watt.....but nothing. I eventually rolled the power up to 5 watts but he was still unable to hear my signal. Funny how Poland and Hungary were no trouble with 5 watts but Cuba was a no go for me this time.
I also heard 6Y5WJ from Jamaica again on 20m but there was a huge pileup waiting to contact him so I moved on.
Tuesdays events
1) HA6OA On 20m was heard again but this time I reduced my power to 1 watts and gave him a go. With a solar flux of 94 and sunspots at 14 I thought..."what the heck" He came back to me on the first call and that gave me 4463 miles per watt contact.
2) SP3GXH on 20m this time I was feeling giddy from my last QRP contact so I dropped my power down to 500mW's and tried my luck!! He came back to me on my first attempt and that made it 8338 miles per watt contact.
I was only able to make 2 short contacts as I got home late from work and lots had to be done at home before any radio time so it was late and I do have to get up early so I pulled the plug for the night. It was good to know that even with the disappointing propagation I was still able to make at least one QRPp contact. My Hendricks 41dB attenuator kit has not come in as of yet but when it does I am going to go for contacts with less than 100mW's and see how that works out for me.
45,868 miles with an attic antenna……SHUT UP!!!
| The K3 is ready to go at 100mW's |
To make things interesting as I was not "contesting" in the true sense I started to drop my power as I gave out contest points. I started at 1.5 watts to CR1X in Finland that worked out to 2755 miles per watt. Update....Thanks to PE4BAS my distance to CR1X who is in the Azores not Finland is 2417 miles per watt, thanks Bas for the info! He had no problem copying me so down went the power. I leveled out at 100mW's just for the reason this is as low as the K3 will venture.
| Proof 100mW's is on it's way...no SWR showing |
Below are the top 4 low power contacts all at 100mW's
1. HA8JV 45,868 miles per watt
2. IR9Y 44,558 " "
3. 9A1A 44,187 " "
4. OL7C 42,496 " "
Until this contest my personal best Miles per watt 16,737 miles per watt when making contact with ZS4TS at 500mW's. Even at 100mW's being copied was easy and I was very surprised. I did not want to drop my power to the point were the contest station was spending his valuable time trying to make contact with me, but that never happened. I am now in the market for an attenuator do get my power output to below 100mW's and see what happens. I was looking at the Hendricks 41db attenuator. It's a kits and looks like a very nice unit.
See if you can identify this mystery interference….
Well over here at VE3WDM I have had a type of mystery interference that shows up now and then check out the Youtube video below and see if you can identify it. Oh and as a sideline I have searched the internet for examples of interference and anomalies such as AC line noise, Static crashes and birdies to name a few and have not been able to find anything!! Maybe someone could put up on Youtube examples of gremlins we hams may run across. Anyway post your ideas as to what this is..............
The bands are dead but can a WSPR defibrillator get results
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| 20m WSPR results |
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| 30m's was local only |
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| 40m's was dead |

















