Author Topic: DGPS Logs 12-13 Feb 2018  (Read 301 times)

ChrisSmolinski

  • Administrator
  • DX Legend
  • *****
  • Posts: 18099
    • View Profile
    • Black Cat Systems
DGPS Logs 12-13 Feb 2018
« on: February 13, 2018, 1614 UTC »
You know it was a good night for DGPS when the fact that I got two stations from Alaska is not the lead story.  This was literally the best night ever for DGPS since I started listening a few years ago.

Europe:
Helgoland                      Germany
Flamborough Head Lt            England   
Wormleighton                   England   
Cabo Carvoeiro Lt              Portugal 
Nash Point Lt                  Wales       
Sumburgh                       Shetland Isles   
Point Lynas Lt                 Wales         
Butt of Lewis Lt               Scotland     
Tory Island Lt                 Ireland     
     

I actually got 3 decodes from Helgoland Germany back in March of 2017: https://www.hfunderground.com/board/index.php/topic,33582.msg125358.html#msg125358

Curiously, I have not received Madeira the last few days, maybe it is off the air?

Flamborough Head Lt England:
Tuesday, February 13, 2018 04:15:15
Tuesday, February 13, 2018 04:15:26
Tuesday, February 13, 2018 04:15:50


Wormleighton England:
Tuesday, February 13, 2018 04:17:30
Tuesday, February 13, 2018 04:44:54
Tuesday, February 13, 2018 05:22:50


Nash Point Lt Wales:
Tuesday, February 13, 2018 05:17:27
Tuesday, February 13, 2018 05:20:17
Tuesday, February 13, 2018 05:20:25
Tuesday, February 13, 2018 05:20:31
Tuesday, February 13, 2018 05:20:59
Tuesday, February 13, 2018 05:22:59
Tuesday, February 13, 2018 05:23:07
Tuesday, February 13, 2018 05:23:45


14522 decodes from Richmond BC may be a record. Tofino is tough here. Oh and two Alaska stations. Alert Bay did not appear this time, nor did Robinson Point, WA which I do not think I have ever received, 323 kHz is blocked here by an NDB.


Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
2        745  000  130  308.0 200  Pedra Branca (Horsburgh)       Singapore            1.339    104.409  15,450 358
4482     100  400  401  296.0 100  Okha [Humani Pt]               India                22.481   69.071   12,255 33 
12       614  628  629  295.0 200  Shitang                        China                28.267   121.617  12,216 343
6        324  448  449  307.0 200  Mersa Martruh                  Egypt                31.365   27.256   8,913  57 
48       492  762  001  298.5 100  Helgoland                      Germany              54.183   7.883    6,233  45 
3        447  687  697  290.5 100  Flamborough Head Lt            England              54.126   -0.091   5,748  47 
3        439  691  001  291.0 100  Wormleighton                   England              52.208   -1.374   5,730  49 
304      340  480  481  311.5 200  Cabo Carvoeiro Lt              Portugal             39.365   -9.411   5,648  67 
8        449  689  699  309.5 100  Nash Point Lt                  Wales                51.401   -3.552   5,614  51 
163      445  685  695  291.5 100  Sumburgh                       Shetland Isles       59.869   -1.276   5,517  40 
53       442  682  692  297.5 100  Point Lynas Lt                 Wales                53.427   -4.292   5,504  48 
58       444  684  694  295.5 100  Butt of Lewis Lt               Scotland             58.526   -6.27    5,265  42 
45       435  670  671  288.5 100  Tory Island Lt                 Ireland              55.267   -8.25    5,208  47 
7        890  280  281  305.0 100  Biorka, AK                     Alaska               56.858   -135.546 4,564  315
34       891  282  283  295.0 100  Level Island, AK               Alaska               56.467   -133.098 4,415  314
1025     342  484  485  308.0 200  Horta                          Azores               38.533   -28.617  4,122  76 
89       908  302  303  315.0 200  Tofino [Amphitrite Point], BC  Canada               48.931   -125.545 3,926  302
81       883  266  267  287.0 100  Pigeon Point, CA               United States        37.189   -122.394 3,923  281
10032    886  272  273  287.0 100  Fort Stevens, OR               United States        46.208   -123.96  3,834  297
1451     764  210  211  314.0 200  Lincoln, CA                    United States        38.855   -121.361 3,782  283
14522    907  304  305  320.0 200  Richmond, BC                   Canada               49.114   -123.183 3,753  302
176      888  276  277  302.0 100  Whidbey Island, WA             United States        48.322   -122.706 3,721  300
2398     881  262  263  302.0 100  Point Loma, CA                 United States        32.677   -117.25  3,666  271
1167     871  172  173  300.0 100  Appleton, WA                   United States        45.792   -121.332 3,637  296
7494     972  901  902  302.0 200  Miraflores                     Panama               8.993    -79.585  3,425  185
1342     946  344  345  299.0 200  Rigolet, NL                    Canada               54.25    -58.5    2,127  34 
34708    944  342  343  310.0 200  Cape Norman, NL                Canada               51.509   -55.831  2,091  44 
15020    940  338  339  315.0 200  Cape Race, NL                  Canada               46.661   -53.075  2,076  60 
255      828  246  247  301.0 100  Angleton, TX                   United States        29.301   -95.484  2,046  241
43341    942  340  341  288.0 200  Cape Ray, NL                   Canada               47.636   -59.241  1,671  52 
41122    808  016  017  314.0 200  Card Sound, FL                 United States        25.442   -80.452  1,619  193
1127     814  028  029  293.0 200  English Turn, LA               United States        29.886   -89.947  1,608  231
4482     830  100  101  296.0 100  Wisconsin, Point WI            United States        46.708   -92.025  1,444  308
39623    925  320  321  313.0 200  Moise, QC                      Canada               50.202   -66.119  1,443  32 
16022    934  336  337  307.0 200  Fox Island, NS                 Canada               45.361   -61.097  1,442  59 
27417    827  244  245  312.0 200  Tampa, FL                      United States        27.85    -82.543  1,414  203
50742    792  136  137  297.0 200  Bobo, MS                       United States        34.125   -90.696  1,367  247
2407     809  018  019  289.0 100  Cape Canaveral, FL             United States        28.467   -80.554  1,292  196
1987     936  332  333  319.0 200  Point Escuminac, NB            Canada               47.075   -64.8    1,278  46 
3        865  160  161  320.0 200  Millers Ferry, AL              United States        32.095   -87.397  1,262  231
22725    831  102  103  298.0 100  Upper Keweenaw, MI             United States        47.233   -88.628  1,257  316
3570     937  330  331  298.0 200  Hartlen Point, NS              Canada               44.583   -63.45   1,238  60 
11692    935  334  335  312.0 200  Western Head, NS               Canada               43.993   -64.67   1,124  61 
40419    939  326  327  295.0 200  Partridge Island, NB           Canada               45.239   -66.056  1,085  52 
41266    926  318  319  300.0 200  Riviere du Loop, QC            Canada               47.762   -69.606  1,073  31 
50303    777  218  219  304.0 200  Mequon, WI                     United States        43.202   -88.066  1,002  296
47197    927  316  317  309.0 200  Lauzon, QC                     Canada               46.821   -71.165  920    29 
1077     836  112  113  292.0 200  Cheboygan, MI                  United States        45.656   -84.475  901    320
50874    799  044  045  290.0 200  Penobscot, ME                  United States        44.453   -68.776  858    49 
29214    778  192  193  292.0 100  Kensington, SC                 United States        33.491   -79.349  723    198
37287    929  312  313  296.0 200  St Jean Richelieu, QC          Canada               45.324   -73.317  693    24 
45446    838  116  117  319.0 200  Detroit, MI                    United States        42.306   -83.103  590    301
172      919  308  309  306.0 200  Cardinal, ON                   Canada               44.783   -75.417  579    12 
49888    772  198  199  306.0 200  Acushnet, MA                   United States        41.749   -70.889  561    64 
31395    771  196  197  294.0 100  New Bern, NC                   United States        35.181   -77.059  503    181
50785    844  094  095  324.0 200  Hudson Falls, NY               United States        43.272   -73.542  489    35 
31715    839  118  119  322.0 100  Youngstown, NY                 United States        43.239   -78.972  427    338
30051    803  006  007  293.0 100  Moriches, NY                   United States        40.794   -72.756  378    70 
25694    806  012  013  289.0 100  Driver, VA                     United States        36.963   -76.562  307    173
48295    847  058  059  301.0 200  Annapolis, MD                  United States        39.018   -76.61   82     158
Chris Smolinski
Westminster, MD
eQSLs appreciated! Send to: csmolinski@blackcatsystems.com
JRC-NRD 545 / RF Space netSDR / AFE822x / AirSpy HF+ / 670 ft horizontal loop / 500 ft beverage / 43mb sloping folded dipole / Crossed Parallel Loop

Uli_Bel

  • Jr. Member
  • **
  • Posts: 48
    • View Profile
Re: DGPS Logs 12-13 Feb 2018
« Reply #1 on: February 13, 2018, 2029 UTC »
Chris, as far as I remember, I never heard Madeira in the last week. It must be off...
I am checking my reception here in early evening - interesting, that the DGPS from France, which has same ID than the Brazil produces NO decode in whole early evening...
May be it is off, although, that some people in Europe say they have decoded it...

It my be a small transmitter only, but I am sure, I would hear it also, if Germans say, they have heard...

So my be Brazil was true and the French one was wrong. I got decodes at 22hxx utc - so that is possible.. will check again this evening.

Great your European spots! What is your antenna now ?
Note, that 4x coplanar magnet loops may be not ideal for such low frequency - although inductance go down, the cutoff frequency is may be too high for NDB band...
Chavdar (LZ1AQ) has written a special article, what kind of loop may be best for using on NDB band - in case of CC-loops you should try larger elements around a 30foot fiber mast or a tree...

Otherwise you can try EWE antenna - I measured 15db f/b ratio, which is respectable on 300kHz and which helps to get noise down...

Ulli, ON5KQ

ChrisSmolinski

  • Administrator
  • DX Legend
  • *****
  • Posts: 18099
    • View Profile
    • Black Cat Systems
Re: DGPS Logs 12-13 Feb 2018
« Reply #2 on: February 13, 2018, 2038 UTC »
This was using the 500 foot beverage antenna.   I also ran using the crossed parallel loop on another receiver, but did not get as good results, as you mentioned that antenna is not ideal for the NDB band.

Your EWE antenna does appear to work very well. I need to see if I can build something like that here.
Chris Smolinski
Westminster, MD
eQSLs appreciated! Send to: csmolinski@blackcatsystems.com
JRC-NRD 545 / RF Space netSDR / AFE822x / AirSpy HF+ / 670 ft horizontal loop / 500 ft beverage / 43mb sloping folded dipole / Crossed Parallel Loop

skeezix

  • Global Moderator
  • DX Legend
  • *****
  • Posts: 2682
  • Minneapolis, MN
    • View Profile
Re: DGPS Logs 12-13 Feb 2018
« Reply #3 on: February 14, 2018, 0244 UTC »
Very, very nice!
Minneapolis, MN

Uli_Bel

  • Jr. Member
  • **
  • Posts: 48
    • View Profile
Re: DGPS Logs 12-13 Feb 2018
« Reply #4 on: February 14, 2018, 1203 UTC »
Chris, about the EWE antenna:
It seems possible to even use smaller EWE's , if you can install a pre-amp at the feedpoint just after the matching transformer (which you still should use!)

I modelled a EWE size of 10m up, 30m horizontal, 10m down to swamping resistor
This is half the size of my EWE. However directivity still very good, but signal output less - about 6db less according to NEC2 engine.

I do not trust the NEC2 engine too much however, because the EWE is an antenna against ground. NEC2 cannot model ground too well especially not the consequences of buried radials.

So, as soon as weather permits (it is lousy cold here at the moment...) I will make some efficiency tests against my large EWE, which becomes a permanent installation now. I will post the results here.
The goal is, to find out, how small you can get, without sacrify too much on signal output (efficiency), which as a result would introduce serious problems with noise ingress via common-mode, etc... (degradation of S/N and directivity)

Ulli, ON5KQ

ChrisSmolinski

  • Administrator
  • DX Legend
  • *****
  • Posts: 18099
    • View Profile
    • Black Cat Systems
Re: DGPS Logs 12-13 Feb 2018
« Reply #5 on: February 14, 2018, 1400 UTC »
I look forward to your tests, Ulli.  I am considering putting up a EWE for the 48 meter band, aimed towards Europe for pirates. I thought that might make a good first test, as the antenna will not need to be very large. Can you recommend any specific sites for EWE theory/design?
Chris Smolinski
Westminster, MD
eQSLs appreciated! Send to: csmolinski@blackcatsystems.com
JRC-NRD 545 / RF Space netSDR / AFE822x / AirSpy HF+ / 670 ft horizontal loop / 500 ft beverage / 43mb sloping folded dipole / Crossed Parallel Loop

Uli_Bel

  • Jr. Member
  • **
  • Posts: 48
    • View Profile
Re: DGPS Logs 12-13 Feb 2018
« Reply #6 on: February 14, 2018, 1437 UTC »
Chris,
unfortunately I don't know a good website for EWE antenna.
However for 48m band, you should use your CC loops - they should work great!

the EWE is not intended for use above 5Mhz, mostly below 3Mhz.
Because if the frequency becomes higher, you would loose the clean cardiode pattern !

For 40m you could use a Beverage also , nothing beats a 2-3 wavelength Beverage, carefully matched to the feedline with the correct swamping resistor.
I made S/N comparisons on 40m using WSPR-mode as well as CW as follows:
my 170m long Beverage always have at least 10db better s/n ratio than my single active vertical
Difference on extreme distance (eastern Australia) could be even more!

Ozy radio I can copy every afternoon, but only on the beverage (5045kHz)...

The EWE is typical a winter antenna used on mediumwave an lower in frequency!
Therefore it was a candidate to try it on 300khz!

Ulli, ON5KQ