LF/MF -
137 kHz/500 kHz activity DD7PC
Since Mid June
2012 new band in DL -> 630m (472 – 479KHz)
·
2
times QRV in Nov.2018 with portable setup in my garden:
Especially
very good conditions on 29.11.18…
·
5.1.13,
22:48-23:04 UTC JT9-2 QSO wit LA4ANA best –18dB
(JO59cu = 1107km) and DL3GV best –8dB (JO53)
·
5.1.13,
21:13 UTC SWL report from IK1WVQ (JN44cb = 658km) – I was transmitting in
QRSS10 :-)
·
2nd WSJT-X/JT9-1 QSO with DG3LV (JO53), 19.11.2012
·
1st
WSJT-X/JT9-2 QSO with DF2JP (JO31jg), 16.11.2012
·
some
more WSPR highlights:
1.
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2.
2012-10-06 21:30 DD7PC 0.475700 -19 0 JN49ax 0.05 DL8YCA JO31or 203 344
3.
2012-10-06 21:30 DD7PC 0.475696 -5 0 JN49ax 0.05 G8HUH IO81mg 788 285
4.
2012-10-02 21:08 DD7PC 0.475704 -20 -1 JN49ax 0.05 F4DTL JN18fp 431 252
2012-10-02 21:08 DD7PC 0.475704 -22 -1 JN49ax 0.05 G0KTN IO81ti 749 286
5.
2012-10-02 21:08 DD7PC 0.475703 -19 -1 JN49ax 0.05 DL1DBC JO41bi 153 2
6.
2012-10-02 21:08 DD7PC 0.501503 -14 0 JN49ax 0.05 M0PPP IO93gm 762 305
7.
2012-10-02 21:04 DD7PC 0.475707 -7 -1 JN49ax 0.05 DG3LV JO53gv 468 21
8.
2012-10-02 19:52 DD7PC 0.475703
-27 -1 JN49ax 0.05 OH1LSQ KP03td 1676 24
(ODX)
·
6.10.2012,
21:25UTC, DF0WD, 4th CW QSO,
472.5KHz
·
06.10.2012,
21:07UTC, DG3LV (JO53), JT65HF,
475KHz dial
· 06.10.2012, 20:41UTC, DL3NDR (JN59), JT65HF, 475KHz dial
·
05.10.2012,
23:30, 3rd CW QSO with
DL2HRE, 472.5KHz
·
05.10.2012,
22:38, SWL Report of my QRSS3 transmission from S52AB -> http://lea.hamradio.si/~s52ab/472khz_web_swl/472khz_web_swl.htm,
thanks also for report from DK6NI, DG3LV! My signal was visible 1st time on
DM4TR grabber
·
02.10.2012,
10:30UTC, 2nd CW QSO with
DK7FC on 472.5KHz
·
9.7.12
some success on WSPR:
1.
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2.
2012-07-09 21:34 DD7PC 0.478503 -24 -1 JN49ax 0.05 G8HUH IO81mg 788 285
3.
2012-07-09 21:34 DD7PC 0.478500 -27 -1 JN49ax 0.05 DF2JP JO31jg 169 329
4.
2012-07-09 21:34 DD7PC 0.478502 -27 -1 JN49ax 0.05 DJ6LB JN59mm 221 102
5.
2012-07-09 21:30 DD7PC 0.478500 -26 -1 JN49ax 0.05 DF2JP JO31jg 169 329
6.
2012-07-09 21:30 DD7PC 0.478502 -25 -1 JN49ax 0.05 DJ8WX JO43sv 447 13
7.
2012-07-09 20:50 DD7PC 0.478501 -24 0 JN49ax 0.05 OR7T JO20ix 261 297
·
03.07.2012:
/ 23:40UTC: yeees 1st CW QSO with DK7FC on 472.5KHz
– tnx for long QSO!
my QSO’s & beacon tests on 137KHz band:
|
Successful QSO |
Incomplete QSO |
Beaconmode – SWL report |
|
DATE |
TIME/ UTC |
Call |
LOCATOR |
TX |
RX |
Freq./KHz |
Mode |
Note |
QRB |
|
10/05/2008 |
evening |
DF6NM |
JN59nk |
na |
O |
137.776 |
QRSS60 |
Beaconmode |
230 |
|
10/05/2008 |
evening |
PA3FNY |
JO22nc |
na |
O |
137.776 |
QRSS60 |
Beaconmode |
312 |
|
10/05/2008 |
evening |
DL2HRE |
JO51tq |
na |
O |
137.776 |
QRSS60 |
Beaconmode |
315 |
|
10/05/2008 |
evening |
F4DTL |
JN18fp |
na |
O |
137.776 |
QRSS60 |
Beaconmode |
431 |
|
10/05/2008 |
evening |
DL3ZID |
JO53po |
na |
O |
137.776 |
QRSS60 |
Beaconmode |
461 |
|
10/05/2008 |
evening |
Harmut |
JO52hp |
na |
O |
137.776 |
QRSS60 |
Beaconmode |
346 |
|
14/10/2008 |
|
DK6NI |
JN59ln |
O |
T |
137.776 |
QRSS3/QRSS10 |
Sked, QRN to high for QSO |
214 |
|
15/11/2008 |
|
DF6NM |
JN59NK |
O |
T |
137.776 |
DFCW3/QRSS3 |
Sked, I
was ~0.6-0.8mV, QRN to high for QSO |
230 |
|
30/01/2009 |
|
PA3CPM |
JO22md |
na |
O |
137.7798 |
QRSS60 |
Beaconmode |
319 |
|
30/01/2009 |
16:30 |
DF6NM |
JN59NK |
O |
O |
137.7 |
DFCW3/QRSS3 |
my Pwr ~1.8mW ERP, tnx QSL |
230 |
|
31/01/2009 |
09:45 |
DL2HRE |
JO51TQ |
O |
O |
137.7 |
QRSS3/QRSS3 |
Ufb, tnx QSL |
315 |
|
31/01/2009 |
10:45 |
F6BWO |
JN28NC |
O |
M |
137.7 |
QRSS3/QRSS3 |
Random, tnx QSL |
298 |
|
01/02/2009 |
10:15 |
DF6NM |
JN59NK |
O |
O |
137.7 |
DFCW3/QRSS3 |
Random,
our 2nd fb QSO |
230 |
|
01/03/2009 |
09:55 |
DK4U |
JO42FD |
O |
O |
137.7 |
DFCW3/QRSS3 |
tnx for
easy QSO+nice QSL card |
243 |
|
06/03/2009 |
09:30 |
DK6NI |
JN59ln |
M |
O |
137.7 |
QRSS3/QRSS3 |
Rain
interrupted QSO at the end L |
214 |
|
18/03/2009 |
18:00 |
OE5ODL |
JN68rd |
O |
O |
137.7 |
QRSS3/QRSS3 |
tnx for
ufb sked, tnx QSL |
444 |
|
18/03/2009 |
>22:00 |
PA3CPM |
JO22md |
na |
O |
137.778 |
QRSS60 |
Beaconmode |
319 |
|
18/03/2009 |
>22:00 |
PA3FNY |
JO22nc |
na |
O |
137.778 |
QRSS60 |
Beaconmode |
312 |
|
18/03/2009 |
>22:00 |
F4DTL |
JN18fp |
na |
O |
137.778 |
QRSS60 |
Beaconmode |
431 |
|
25/03/2009 |
14:40 |
PA3CPM |
JO22md |
M |
T |
137.7 |
QRSS3/QRSS3 |
Random,
incomplete due QRM on both sides |
319 |
|
26/03/2009 |
09:45 |
PA3CPM |
JO22md |
O |
O |
137.7 |
QRSS3/QRSS3 |
Tnx
Henny for sked, tnx QSL |
319 |
|
23/04/2009 |
13:10 |
OE5ODL |
JN68rd |
O |
O |
137.7 |
QRSS3/QRSS3 |
TnxOssi for random QSO |
444 |
|
23/04/2009 |
17:38-20:20 |
Michael (SWL) |
JN49bf |
na |
-19dB |
137.836 |
WSPR |
Tnx Michael for listening |
84 |
|
25/04/2009 |
13:45 |
OE5ODL |
JN68rd |
O |
O |
137.7 |
QRSS5/QRSS5 |
agn
random, vy gd signal
report received J |
444 |
|
07/11/2009 |
11:50 |
OE5ODL |
JN68rd |
O |
O |
137.7 |
QRSS5/QRSS5 |
agn
random, vy gd signal
report received J |
444 |
|
08/11/2009 |
11:00 |
F8BOJ |
JN16WA |
O |
M |
137.7 |
QRSS3/QRSS5 |
tnx
Claude for new, a lot QRM |
538 |
|
04/12/2009 |
19:00 |
HB9ASB |
JN36nu |
O |
O |
137.7 |
QRSS3/QRSS4 |
Tnx
Toni for sked + QSL card (sri Gerhard,
OE3GHB saw y calling me, but lost y later) |
354 |
|
04/12/2009 |
21:00 |
F1AFJ |
JN06ht |
na |
M |
137.778 |
QRSS60 |
Beaconmode, tnx for grabber |
650 |
|
04/12/2009 |
21:00 |
SQ5BPF |
KN02md |
na |
T |
137.778 |
QRSS60 |
Beaconmode, tnx for grabber |
938 |
|
05/12/2009 |
11:00 |
OE5ODL |
JN68rd |
O |
O |
137.7 |
QRSS3/QRSS4 |
444 |
|
|
03/01/2010 |
12:00 |
DK7FC/p |
JN49is |
579 |
439 |
137.705 |
CW |
Stefan, tnx for 1st CW QSO + QSL card! |
53 |
|
03/01/2010 |
12:45 |
DF6NM |
JN59nk |
O |
O |
137.705 |
DFCW3/QRSS3 |
random |
230 |
|
19/02/2010 |
22:30 |
SN0JH |
O |
466 |
137.705/40m |
QRSS3/CW |
Special
LF event station, tnx for nice XBand
QSO (SQ2BXI) |
||
|
05/03/2010 |
18:06 |
PA3FNY |
JO22nc |
na |
-27dB |
137.0 |
WSPR |
Beaconmode (dial 135.5) |
312 |
|
06/03/2010 |
12:34 |
Michael(SWL) |
JN49bf |
na |
-4dB |
137.0 |
WSPR |
Beaconmode |
84 |
|
06/03/2010 |
12:54 |
DF6NM |
JN59nk |
na |
-16dB |
137.0 |
WSPR |
Beaconmode |
230 |
|
07/03/2010 |
10:36 |
DK6NI |
JN59ln |
na |
-18dB |
137.0 |
WSPR |
Beaconmode |
215 |
|
07/03/2010 |
11:22 |
F6BWO |
JN28nc |
O |
O |
137.7 |
QRSS3/QRSS3 |
tnx for
2nd random QSO |
298 |
|
11/09/2010 |
21:29 |
DK1IS |
JN59wk |
O |
M |
137.7 |
QRSS3/QRSS3 |
random, tnx QSL |
282 |
|
12/09/2010 |
09:30 |
DK6NI |
JN59ln |
O |
O |
137.7 |
QRSS3/QRSS3 |
tnx ufb signal |
215 |
|
12/09/2010 |
10:50 |
F6BWO |
JN28nc |
O |
O |
137.7 |
QRSS3/QRSS3 |
tnx for random |
298 |
|
18/12/2010 |
09:19 |
DF6NM |
JN59nk |
O |
O |
137.705 |
DFCW3/QRSS3 |
random |
230 |
|
19/12/2010 |
11:09 |
DB6NT |
JN50ti |
O |
M |
137.7 |
QRSS3 |
random, tnx 1st QSO |
259 |
|
12/01/2011 |
16:20 |
G3KEV |
IO94sh |
O |
M |
137.7 |
QRSS3 |
Incomplete - ipeaked
up shortly with “M” -> see here Pic1+Pic2 |
753 |
|
04/02/2011 |
14:15 |
HE3OM |
JN36ip |
O |
O |
137.3 |
QRSS3/CW |
383 |
|
|
05/02/2011 |
19:40 |
OR7T |
JO20ix |
O |
O |
137.7/501.1 |
QRSS3 |
260 |
|
|
14/01/2011 |
14:50 |
DF4PV |
JN49ax |
na |
+5dB |
137.5 |
WSPR |
Beaconmode (dial 136.0) |
1 |
|
04/02/2011 |
20:48 |
PA3FNY |
JO22nc |
na |
-21dB |
137.5 |
WSPR |
Beaconmode |
312 |
|
04/02/2011 |
21:42 |
F5WK |
JN18hp |
na |
-23dB |
137.5 |
WSPR |
Beaconmode |
420 |
|
04/02/2011 |
22:04 |
F6CNI |
JN19qb |
na |
+1dB |
137.5 |
WSPR |
Beaconmode |
255 |
|
04/02/2011 |
22:50 |
PA0A |
JO33de |
na |
-23dB |
137.5 |
WSPR |
Beaconmode |
342 |
|
28/07/2011 |
13:55 |
DL6NN |
JO30vc |
O |
O |
137.7 |
QRSS3 |
random, tnx 1st QSO |
23 |
|
10/09/2011 |
11:05 |
M0BMU |
IO91vr |
O |
O |
136.5 |
QRSS3 |
610 |
|
|
13/10/2001 |
15:20 |
DM4TR |
JO61de |
O |
O |
137.7 |
QRSS3 |
Tnx
sked |
329 |
|
06/11/2011 |
10:48 |
DL6NN |
JO30vc |
O |
O |
137.7 |
QRSS3 |
Random |
23 |
|
07/11/2011 |
19:20 |
DL3NSW |
JN59JW |
O |
O |
NSW
136.54 PC 137.7 |
QRSS3 |
Tnx sked |
197 |
|
07/11/2011 |
20:15 |
DK7FC |
JN49ik |
599 |
599 |
136.5 |
CW |
Random |
77 |
|
08/11/2011 |
18:10 |
DL6NN |
JO30vc |
O |
O |
137.7 |
QRSS3 |
Random |
23 |
|
10/11/2011 |
13:40 |
DK7FC |
JN49ik |
O |
O |
137.7 |
PC in
QRSS3 |
Random,
nice signal in chirped Hell 3 |
77 |
|
24/02/2012 |
08:50-15_08 |
DC0VD DF2JP F6NCI |
JN39gw JO31jg JN19qb |
137.5 |
WSPR |
Beaconmode |
|||
|
24/02/2012 |
16:11- 23:01 |
M0DTS G8HUH G4FVP F6NCI G4GWT |
IO94IL Somerset Darlington Paris IO83qo |
137.45 |
Opera (8) |
Beaconmode |
ODX 835 |
||
|
25/02/2012 |
0:21 |
RN3AGC Grabber |
KO85sv |
O |
137.779 |
QRSS60 |
Beaconmode -> my
signal in grabber RN3AGC |
2064 |
|
|
*28/11 + 01/12.14 |
18-23:00 |
DF6NM,
DK7FC + GW0EZY via OP32 grabber* DL-SWL +
DF2JP via PSK reporter map |
best IO82HO |
|
|
136 dial |
OP32 |
Opera beacon
with 35W + MF ant. |
845 |
Anzahl aufgelisteter QSO: 32 (DXCC: 6)
*https://dl.dropboxusercontent.com/u/10326787/GW0EZY-opds32-137kHz.txt
GW0EZY IO82HO 137 kHz Opera-32 correlation https://dl.dropboxusercontent.com/u/10326787/GW0EZY-opds32-137kHz.txt
(DF6NM opds2h5c) SDR-IQ + active wideband 1m loop (Wellbrook LF1010 special)
date time call
distance frequency bandwidth snr
correlation
2014-12-01 22:11:10 DD7PC 845km 137503.840Hz 17mHz -43.1dBOp 89% 18.8dB2014-12-01 18:12:36 DD7PC 845km 137503.853Hz 40mHz -44.3dBOp 92% 17.5dB
14.Jan. 2011: my signal on 137.7KHz, QRSS3 in the Grabber of
Rik, ON7YD (JO20ix, 261Km)
12.Jan.2011: report
from DL2HRE when G3KEV and i calling CQ
On 23.04.2009 i
have my new linear transverter ready which allows me to run all digital modes
on LF/MF. Here nice report of my WSPR beacon with some details about the
transverter:
137KHz WSPR Beacon DD7PC on 23.Apr.09
·
07.Mar.10 17:59UTC – SWL report from
Horst, DO1KHS (when i called OK1DTN on 137.700KHz)
many thanks for QSL card
and report!
·
26.Mar.09 09:45UTC – Sked with
PA3CPM, screen print of my signal from Henny:
·
18.Mar.09 >10pmUTC – my Beacon in
QRSS60 on 137.778KHz, thanks for reports from PA3CPM,
PA3FNY and F4DTL:
sample of my beacon
signal received by F4DTL
·
06.Mar.09 08:30UTC – Sked with DK6NI,
here a screen print of my signal from Gerhard, DK6NI:
·
05.Mar.09 – CW audio sample from
Michael, JN49bf (many thanks for that):
·
01.Mar.09 09:55UTC – QSO with DK4U, capture of our QSO, DK4U
in DFCW:
·
31.Jan.09 09:45UTC –my 2nd
QSO with DL2HRE! Sked with Edgar, copied “0”. Capture
of our QSO:
and what a fun after the
QSO Jeff, F6BWO called me for my 3rd QSO:
·
30.Jan.09 16:30-17:06UTC –my 1st
QSO with DF6NM! i had a sked with Markus and he copied my “0”. Capture of our
QSO:
DF6NM
in DFCW3 and I in QRSS3; Markus calculated my ERP to 1.8mW
(Dein Signal war ca. 1 µV/m
hier. Tagsüber sollte das sogar gerade hörbar sein, aber im abendlichen
Störpegel konnte ich mit dem Ohr nichts wahrnehmen. Mit der Entfernung (ca. 200
km?) und der Bodenwellendämpfung lässt sich Deine Strahlungsleistung schätzen:
EMRP /dBm = E / dBuV/m -50 + 20 log (r/km) + 0.02 * r/km = 0 - 50 + 46 +
4 = 0
also ca 0 dBm = 1 mW abgestrahlte Leistung oder 1.8 mW ERP bezogen auf einen
Halbwellendipol)
·
28.Jan.09 Test transmission on
137.7798 in QRSS60: Henny,
PA3CPM sent me this snapshot:
·
26.Jan.09 permanent QRV on 137KHz: i installed my 34m
longwire a bit higher with a 8m vertical part. Matching between loading coil
and transmitter is still not good and I loss a lot power. However signal is now
strong enough to see my QRSS3 signal in the grabber of DL2HRE and DF6NM:
·
14.+15.Nov. 2008 – 3rd time on
137KHz: unfortunately high QRN level, I tested with Markus, DF6NM and
he received my signal with ~0.6-0.8mV. Good enough for QRSS3
when QRN is low. Fine signal from him in DFCW:
(on
top my signal, sri I sent MN instead NM! DF6NM in DFCW calling me)
·
13.+14.Oct. 2008 – 2nd
time I transmit on 137KHz: result was very mixed. First I killed
my 250W amplifier again due some oscillations. Monday morning I tx then just
with the driver and 5W. Very impressive to saw my QRSS60 signal just with this
low power in the DF6MN grabber! In the evening I used my backup PA with
~50-60W. A sked with DL1EIE was not successful, but I could see my QRSS3 signal
weak in the grabber of DL2HRE. However this evening my QRSS60 signal was not that
strong in grabber of DF6MN and DL2HRE as I hoped before. On Tuesday morning I
had a sked with Gerhard, DK6NI -> I had a ufb copy of his QRSS3 signal and
he was able to copy me in QRSS10 just on a small active antenna :-)
my
QRSS10 signal copied by DK6NI
·
10.May 2008 I did my 1st
test (beacon) transmission in QRSS30/60 on 137.776KHz (setup was very
experimental, see details under “my
station”). I was very impressed about following successful reports of my
longwave signal! [My special thanks to Gerhard, DK6NI and Arnim, DL1EIE for
all their help and support and to Heinz, DM2BHG for many used LF parts of my
station!]
·
Markus, DF6NM in JN59NK (QRB 230Km)
·
Hartmut
in JO52HP (QRB 346Km)
·
Victor, PA3FNY in JO22NC (QRB 312Km)
·
Ed, DL2HRE in JO51TQ (QRB 315Km)
·
Nicolas, F4DTL in JN18FP (QRB 431km)
·
Eberhard,DL3ZID in JO53PO (QRB 461Km) (maybe their were also some weak
traces in Grabber of F1AFJ -> see
here, JN06HT, QRB 650Km)???
·
500KHz
X-BAND QSO’s and SWL reports
some VLF SWL activity:
·
8.97KHz
+ 6.47KHz Transmission by DK7FC
·
March 2007 i solder my "LF Exciter" -
which is a state-of-the-art unit (transmitter) especially for LF enthusiasts
and "Lowfers". With very good stability and 1W sinewave output, the
unit can be used as a low power transmitter, signal generator, or to drive high
powered transmitters. Modes are Morse & ASK incl. QRSS, ASK image like Feld-Hell,
FSK, DFSK (DFCW), MFSK (MT-Hell), MFSK or IFK data like Jason. Operating range
0.08 - >400 KHz. I purchased from DF1CY the "LF exciter" board and
programmed microcontroller. The rest was soldered in a couple of hours.
Here some snapshots where i transmit
on 137.7 KHz:
1st: LF Exciter in beacon mode - 2nd:
my call in QRSS3