Archive for the ‘qrp’ Category
QRP Go pack. Again.
It’s a constant theme on this blog – the frequent updates of my QRP go Pack. Well I’ve reached a point where I think I’m happy with the current configuration. My pack differs to many I’ve seen on YouTube. I include more than just the radio equipment. I also include some basic tools and items that make for a comfortable set up when I’m out portable. The ability to make a wind break, or even a shelter and also to be able to have a warm drink means that in actual fact I can stay out portable for quite some considerable time.
Have a look at my latest configuration of my pack. This I have decided is the autumn winter configuration. I have already started thinking about what I would remove and add for a summertime set up.
MFJ 1788 loop contacts
QRP/SOTA Fun Without Climbing A Mountain
So I set up my operating position just as I would on a summit. I was testing one of the SOTA beams EFHW antenna with counterpoise and a homebrew 29 ft. wire. I brought along two tuners including Hi-Tee Tuner from SOTAbeams and a recently acquired Hendricks SLT+ 80m-10m end fed half wave tuner.
The SOTAbeams combo was my first configuration. I put the antenna over a limb about 15ft. up and let it slope down to another limb about 7 feet up and then down to the radio. The antenna wire terminated into a 4mm plug that prevented me from running through the eyelets of my pole. I plugged the wire into the tuner (which will only take a 4mm plug, there is no binding post) as well as the counter poise. The antenna tuned nicely and I had QSO with a station in Arizona. As I finished that QSO I tuned across the SOTA frequencies and heard W0CCA calling CQ SOTA from a summit in Arizona on 20m. Cool, now could I work him with this set-up? I usually don't have to wait long in a pile-up but for this QSO I would have to. I was tempted to run over to the QRO shack and make the contact to ensure I got the points since he was on a 10 pointer, however I resisted the temptation. My faith in QRP was rewarded, Cap finally heard me and gave me a 229. Cool.
So now I set-up the simple 29 ft. wire. Since it didn't have the banana plug on it, the Hi-Tee Tuner was useless, so I set up on the SLT+. I was able to use my pole this time, so the wire was higher off the ground in an inverted L configuration. By that time KX0R was calling CQ SOTA on 20m from a summit in Colorado. Evidently the pile-up had run it's course because I got him on the first call. So my little tuned wires had netted 12 SOTA chaser points. I am regularly amazed by QRP, how much you can do with a few watts and some wire.
A great day of QRP/SOTA fun.
More Battery Power for the FT-817
The product is a 3000mAh LiPo battery that fits the 817, a replacement for the battery door that allows the battery to be charged by an external charger (included) and a nice stand for the radio. (The battery that comes with the 817 is 1400mAh) All this for $89. Now, it is a product made in China, so it is tough to determine quality, (that's also true for certain US producers as well). I ordered the package and will test it to see if it is as advertised. W4RT offers a similar product but it's priced at $150.00 and the battery is a NiMH.
I have no commercial interest in this product, but it seems worth the money if it delivers as advertised.
Pico Paddle
The cable used to interface with your rig is a little unique, in that it is a 2.5mm - 3.5mm and it is reversed with the tip being the dah. So it is a little different than the typical set up. If you are using the paddle with an FT-817 or a KX-3 or similar commercial transceiver, a simple adjustment in the menu will fix the reversed cable issue. If you are left handed, then it's perfect. The problem comes if you use the Pico paddle on a home-brew radio that doesn't have the ability to adjust the dits and dahs. You can do you own fix by cutting and reversing the wires and I suppose if you are using the paddle at a home station this would be sufficient, but the cable wires are thin and the solder job doesn't hold up well with portable use. There is a pre-made reverse wired cable available from MTechnologies that is a much better alternative.
One nice feature of the paddle is the quick mount. It a very strong magnet that allows you to mount the key on the radio. In the field this is a nice feature and prevents you from having to hold a small paddle and log at the same time. I recently used it in combination with my MTR on a SOTA trip and I really liked the way the radio and paddle were integrated.
Three Summits in the Wichita Mountains
I had lived in Duncan, Oklahoma for eight years in the '80's and early '90's and had visited the Wichita Mountains multiple times with my family and our Boy Scout Troop, but never with summits in mind. So the must do summits in the Wichitas are Mt. Scott and Elk Mountain. Mt. Scott is a drive up and Elk Mountain is a nice 1.1 mile hike, one way. I knew if I started early, three summits were doable, maybe even four. But which one would be the third? I remembered KC5CW and KD5ZZK operating from a four point summit not far from Mt. Scott, so after a little research, Mount Cummins was added to the list. Below is a report on the trip.
For this trip I used an MTR 20/40, 500 mah Lipo battery, 21 foot collapsible carbon fiber pole and a LNR 10-20-40 "trail friendly" End Fed Half Wave antenna.
Mount Scott W5O/WI-002
This is an easy summit. The weather was on the chilly side with temps in the mid-30's when we started out. Upon arriving on the base of the mountain, there was a squad of army soldiers getting ready for a run up the mountain, something that would appeal to Fred, KT5X, but I was happy to drive up this one. At the summit, there was only one other car, so I had a pick of operating sites. I elected to get out of the wind and down a ways from the summit.
More WSPR with 20mW
I’ve been WSPRing on 30m today, still with a power of 0.2W. I think WSPR is more interesting when you use low power: it’s always interesting to see how far you can get.
20mW is not the lowest power you can use, though, it’s just the lowest power the K3 will comfortably produce. (You can set the output power to 0.0W but I’m not sure how accurately the rig will maintain the power at such a low level – something to check.
Today my 0,02W into the MFJ magnetic loop in my attic was received by 30 different stations. Here’s the list:
| Timestamp | Call | MHz | SNR | Drift | Grid | Pwr | Reporter | RGrid | km | az |
|---|---|---|---|---|---|---|---|---|---|---|
| 2014-01-13 11:52 | G4ILO | 10.140243 | -11 | 0 | IO84hp | 0.02 | ON7KO | JO21ce | 637 | 124 |
| 2014-01-13 11:52 | G4ILO | 10.140209 | -23 | 0 | IO84hp | 0.02 | DL8HAF/P | JO53dm | 899 | 92 |
| 2014-01-13 12:32 | G4ILO | 10.140206 | -26 | 0 | IO84hp | 0.02 | DK6UG | JN49cm | 973 | 121 |
| 2014-01-13 12:54 | G4ILO | 10.140217 | -22 | 0 | IO84hp | 0.02 | DC5EO | JO31ed | 760 | 117 |
| 2014-01-13 12:54 | G4ILO | 10.140210 | -18 | 0 | IO84hp | 0.02 | G8CRB | JO02bf | 355 | 138 |
| 2014-01-13 13:18 | G4ILO | 10.140195 | -19 | 1 | IO84hp | 0.02 | G0GSJ | IO84jc | 61 | 170 |
| 2014-01-13 14:20 | G4ILO | 10.140199 | -19 | 0 | IO84hp | 0.02 | G4ILR | JO02pp | 379 | 124 |
| 2014-01-13 14:20 | G4ILO | 10.140224 | -29 | 0 | IO84hp | 0.02 | M0BLP | JO02ad | 359 | 139 |
| 2014-01-13 14:30 | G4ILO | 10.140210 | -20 | 0 | IO84hp | 0.02 | OH8GKP | KP24rt | 1945 | 43 |
| 2014-01-13 14:30 | G4ILO | 10.140203 | -19 | 0 | IO84hp | 0.02 | GM4SFW | IO77sn | 331 | 349 |
| 2014-01-13 14:30 | G4ILO | 10.140199 | -11 | 2 | IO84hp | 0.02 | OH3HTI | KP21ag | 1760 | 54 |
| 2014-01-13 14:30 | G4ILO | 10.140182 | -13 | 0 | IO84hp | 0.02 | LA5GOA | JO29oi | 737 | 41 |
| 2014-01-13 14:38 | G4ILO | 10.140197 | -23 | 0 | IO84hp | 0.02 | OZ7IT | JO65df | 1001 | 80 |
| 2014-01-13 14:38 | G4ILO | 10.140194 | -13 | 0 | IO84hp | 0.02 | SA6BSS | JO68 | 1084 | 60 |
| 2014-01-13 14:48 | G4ILO | 10.140189 | -21 | 0 | IO84hp | 0.02 | SM6WZI | JO67mp | 1067 | 65 |
| 2014-01-13 14:56 | G4ILO | 10.140208 | -21 | 0 | IO84hp | 0.02 | DC8SE | JN48xi | 1155 | 122 |
| 2014-01-13 14:56 | G4ILO | 10.140180 | -7 | 0 | IO84hp | 0.02 | ON7KB | JO21ei | 634 | 122 |
| 2014-01-13 15:04 | G4ILO | 10.140204 | -11 | 0 | IO84hp | 0.02 | DK4TJ | JO31fc | 768 | 117 |
| 2014-01-13 15:04 | G4ILO | 10.140236 | -25 | 0 | IO84hp | 0.02 | PA1GSJ | JO22da | 586 | 117 |
| 2014-01-13 15:14 | G4ILO | 10.140238 | -21 | 0 | IO84hp | 0.02 | DL1WER | JN58dd | 1189 | 122 |
| 2014-01-13 15:24 | G4ILO | 10.140195 | -13 | 0 | IO84hp | 0.02 | DL1KCQ | JO33uc | 746 | 99 |
| 2014-01-13 15:36 | G4ILO | 10.140188 | -25 | -1 | IO84hp | 0.02 | M5LMY | IO91oi | 405 | 154 |
| 2014-01-13 15:36 | G4ILO | 10.140197 | -12 | 0 | IO84hp | 0.02 | PI4THT | JO32kf | 729 | 107 |
| 2014-01-13 15:36 | G4ILO | 10.140196 | -15 | 0 | IO84hp | 0.02 | LA9JO | JP99gb | 1949 | 26 |
| 2014-01-13 15:36 | G4ILO | 10.140191 | -20 | 0 | IO84hp | 0.02 | SM0FGT | JO89xg | 1384 | 60 |
| 2014-01-13 15:36 | G4ILO | 10.140182 | -12 | 0 | IO84hp | 0.02 | LA5GOA/RX2 | JO29oi | 737 | 41 |
| 2014-01-13 15:46 | G4ILO | 10.140222 | -12 | 0 | IO84hp | 0.02 | DC0DX | JO31lk | 776 | 113 |
| 2014-01-13 15:46 | G4ILO | 10.140215 | -17 | 0 | IO84hp | 0.02 | DC4LC | JN48np | 1088 | 123 |
| 2014-01-13 16:22 | G4ILO | 10.140208 | -17 | 0 | IO84hp | 0.02 | DK4LA | JO54ae | 868 | 88 |
| 2014-01-13 16:48 | G4ILO | 10.140196 | -23 | 0 | IO84hp | 0.02 | HB9FGQ | JN36kk | 1163 | 137 |


























