Just posted a blog, computer bleeps and....................i have been heard in Florida. USA
KK4XO. Not bad for a piece of wire.
So i know i am putting a signal out, why am i not picking any one up though? Hhhhmmmmmm
Lets see how it goes today.
73 & 501 Rose

Just posted a blog, computer bleeps and....................i have been heard in Florida. USA
KK4XO. Not bad for a piece of wire.
So i know i am putting a signal out, why am i not picking any one up though? Hhhhmmmmmm
Lets see how it goes today.
73 & 501 Rose

Not been on air recently due to problems this end. However, aerial has been re-arranged as an end fed wire working against a counterpoise. And i am now doing tests on 18 Mhz (17M) to see how effective the wire is an aerial.
High power WSPR has caused feedback problems causing the Signalink interface to cut out so that needs seeing too.
Now turned the wick down to 5 watts and not experiencing problems.
Will run for the rest of the day and see where i can be heard.
Already been picked up in Germany, not too bad for a bit of wire that at its highest point is only 8 meters in the air.
The wire is mostly sloping and low down.
Weather today, wet, cold, humid and some light fog. So not expecting miracle distances.
73 and 501 Rose.

1500km "hearing" on the 817 and a piece of wire is fabulous. 900 km "heard" on 500mW and the same piece of wire is even more so.

Hello,

I am using WSPR for some time now, but continue to be amazed of how useful it is to test equipment and help our experiments!
This morning i have decided to plug the antenna, even my I/Q signals are not exactly in balance and I have a bit of sideband
in the signal. I would have killed for one spot, but i got plenty.

Currently on air with 7 dBm, 50 meters of cheap coax as feeder. Signal measured with the analyzer:

http://www.flickr.com/photos/80797729@N04/8198529233/in/photostream/ligh...

The signal is generated via Soft DDS on STM32F407, with external TLV320 codec and softrock TX without
the final amp(just the driver):

http://www.flickr.com/photos/80797729@N04/8198528851/in/photostream/ligh...

Some spots I got:

2012-11-19 09:50 M0NKA 14.097078 -19 -1 IO92am 0.005 DG7RJ JN58th 1068 111
2012-11-19 09:50 M0NKA 14.097175 -24 0 IO92am 0.005 DF2LV JO44rs 792 67
2012-11-19 09:50 M0NKA 14.097081 -17 0 IO92am 0.005 OZ7IT JO65df 979 66
2012-11-19 09:50 M0NKA 14.097088 -23 0 IO92am 0.005 DF6MK JN68ik 1130 108
2012-11-19 09:50 M0NKA 14.097078 -2 0 IO92am 0.005 DK6UG JN49cm 785 111
2012-11-19 09:50 M0NKA 14.097088 -19 0 IO92am 0.005 DJ7KA JO61pb 1059 93
2012-11-19 09:50 M0NKA 14.097057 -2 0 IO92am 0.005 DB0ZDF JN49cx 761 108
2012-11-19 09:46 M0NKA 14.097090 -20 -1 IO92am 0.005 DF6MK JN68ik 1130 108

Thanks Joe for the software and everyone who keeps their equipment on, 24/7 !

73, Chris
M0NKA

I've been wanting to reduce my transmit power below the 5 W permitted by my TS-2000, and I've been too busy to build an attenuator -- that's going to have to wait until after the holidays. Several helpful users suggested reducing my transmit audio to get the power that I wanted, but my SWR/power meter didn't have fine enough scale divisions to help me decide what audio level to use.

Last night while searching for an affordable QRP power meter, I ran across several discussions in which hams talked about an old trick: connecting a cross-needle SWR meter backwards. Hooking the transmitter to the antenna plug and the antenna to the transmitter plug lets you use the more finely graduated and sensitive reverse power scale to judge your forward power, at the expense of giving up a reflected power indication. Well, I don't really care about the amount of reflected power from a resonant loop being driven with 1 W.

I'm not about to brag at the accuracy of the measurements I'm getting; this meter is part of an MFJ antenna tuner, after all. But my transmit power is now approximately one watt, and I didn't have to buy a new meter.

As you may know I wrote a handy little web script that generates maps of WSPR activity ( http://k4det.net/wsprmap ). I rely on the nightly batch files of wspr contacts that until recently have been available for download on this site. Does anyone know why they've stopped being produced?

Thank you and 73 de k4det

Bla Bla Bla Blog

Monitoring 80 Meters

NEW - Points to consider in resolving the issue of ARISS voice operations in the 2 meter WSPR frequency segment outside of IARU Region 1: http://wsprnet.org/drupal/node/3802

Worldwide 2 meter WSPR activity on 144.4905 MHz has increased over 100 fold in the last 6 months, with operations currently primarily in North America, Europe and Australia. This has increased the potential for mutual interference with the ARISS uplink frequency of 144.49 MHz in IARU Regions 2 and 3. ARISS uses 145.20 MHz for the voice uplink in Region 1.

We have been advised that there is no concern for interference with scheduled event and school voice contacts as ARISS conducts these activities on alternate unpublished uplink frequencies. The ISS team members may use the 144.49 MHz ARISS voice uplink frequency only sporadically for recreational contacts.

AMSAT is interested in this matter, and Frank Bauer, KA3HDO, has related the difficulty with which ARISS coordinated its current frequencies:

"It took a lot of coordination over many years to get SAREX, now ARISS, on a consistent band plan. I have been doing frequency coordination for ARISS and SAREX since 1991. It was very painful to get this coordinated internationally. Especially within Regions 1 and 2. I think you know that ARISS can’t use 145.20 in Region 2.

The big issue we (ARISS) have on 2 meters is that we need the transmit and receive frequencies to be split on voice. And they will need to be separated beyond the OSCAR weak signal subband (145.8-146). This would not have been an issue if the second OSCAR subband (around 144.3-144.5) was still in place. But that was reallocated to other domains."

We would wish to collaborate with AMSAT to avoid interference with future ARISS activity on the 144.49 MHz frequency that we currently share in IARU Regions 2 and 3.

Carol F. Milazzo, KP4MD/W6

Hi All,

N3IZN and W6SZ have been running WSPR tests during a couple of weeks.

Here is one day of reports:

46 spots:
Timestamp Call MHz SNR Drift Grid Pwr Reporter Grid km az
2012-11-12 03:20 W6SZ 368.406480 -18 -3 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 03:18 N3IZN 368.406515 -10 1 DM13ji 1 W6SZ DM14ed 96 336
2012-11-12 02:56 W6SZ 368.406486 -24 0 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 02:54 N3IZN 368.406515 -18 -1 DM13ji 1 W6SZ DM14ed 96 336
2012-11-12 02:44 W6SZ 368.406485 -23 -1 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 02:40 N3IZN 368.406510 -17 1 DM13ji 1 W6SZ DM14ed 96 336
2012-11-12 02:36 W6SZ 368.406486 -24 0 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 02:24 W6SZ 368.406489 -20 0 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 02:16 W6SZ 368.406487 -20 0 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 02:02 N3IZN 368.406505 -11 -2 DM13ji 1 W6SZ DM14ed 96 336
2012-11-12 01:34 W6SZ 368.406505 -21 -1 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 01:30 N3IZN 368.406492 -12 -2 DM13ji 1 W6SZ DM14ed 96 336
2012-11-12 01:26 W6SZ 368.406507 -20 -1 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-12 01:24 N3IZN 368.406490 -12 2 DM13ji 1 W6SZ DM14ed 96 336
2012-11-12 00:44 N3IZN 368.406520 -16 -1 DM13ji 1 W6SZ DM14ed 96 336
2012-11-12 00:28 N3IZN 368.406517 -11 -1 DM13ji 1 W6SZ DM14ed 96 336
2012-11-11 23:56 N3IZN 368.406501 -11 1 DM13ji 1 W6SZ DM14ed 96 336
2012-11-11 23:52 W6SZ 368.406528 -18 0 DM14ed 0.5 N3IZN DM13ji 96 156
2012-11-11 23:28 W6SZ 368.406551 -17 -3 DM14ed 0.5 N3IZN DM13ji 96 156

Hi There,

it took me a few months to be qrv with Wispers,

the reason is complex but the anwer is more than simel, the soundcard in combination with my FT950 is complete a mismatch (all the other digmods works fine)

Next time better,

Regards Carlo

There's a VHF/UHF field day contest coming up in VK land so in preparation for it I swapped a vertical 2m yagi to horizontal. It's currently running WSPR, 7 elements (10dBd) beaming SW over Sydney from Newcastle. This is my first experience with VHF DX so any reception reports would be most welcome!

So far I've done 2-way WSPR with one station, 192km path. It was an interesting to see doppler shifted reflections from his signal (http://www.vk2mev.net/?p=205 for screenshot). The path went directly over Sydney airport (as in, it crossed a runway) so I'm guessing it was a reflection off an aircraft, can anyone confirm this?

The WSPR beacon is running off a Raspberry Pi (http://www.vk2mev.net/?p=96 for info) so it will be going for the next few days. I'll only stop it if I want to work HF with my FT-857.

For the last two months I have left a 40m "WSPR Beacon" running using a Genesis Radio G40 SDR woth GSDR software, Virtual Audio Cable and WSPR.

Most days reports have been received from central and east coast USA and Tasmania, and "watching" the propogation has been fascinating. This culminated in a talk about WSPR given to the Spen Valley Amatuer Radio Society ( http://www.svars.org.uk ) which was well received.

As of today the station will be off air for an extended period whilst I concentrate on other things, hopefully to return on a different band, or multiband in 2013. (One of the other things I'll be concentrating on is a multiband Genesis G59 transceiver)

As Arnie said.............."I'll be back"!

73 for now. Ian, M0INB / G7DWY

Having got WSPR and WSJT working on my Ubuntu laptop, the next challenge was to get WSPR working on the more restricted Raspberry Pi

The story of my success is at g4fre.blogspot.com (dated 3/11/12)

Dave

ww2r g4fre

Just finished successful completion of a kit from openbeacon for 30m
Now looking for cheap 30m mono band aerial design which I can dedicate to my beacon as I only have 1 HF aerial.

Well, I thought retirement last year was going to make it so much easier to work on the air and get some action going. Friends told me that I would be busy but nothing, repeat nothing, surprised me more than to find out that I just don't know how I found the time to work!
Well, after some soul searching, I have decided to withdraw from some (not all) of my voluntary community work after 3 decades, on the most part, of giving my time freely. I now hope to be able to return to the shack, as most of my operating over the last 10 years has been mobile (HF & VHF).
I have always, since the age of 10, been interested in propagation (MW in those days) and aerials ......... So getting back in the swing of using WSPR is now a real priority.
So - here's looking for you!
Best 73 de John

Does anyone know of any tx setup tools ?

I have a TX kit here which generates the tones, but trying to setup the desired FSK shift
and seeing if the data is being sent correctly is very difficult.

At the end of the day, attempting to see if homebrew equipment is sending the right tomes
relies upon making a transmission and relying upon the WSPR software to see if a decode has been
possible.

Very long and tedious !

It would be so much nicer if it was possible to just send some test data without the hassle
of waiting for the correct time to transmit, sending 2 mins of data only to find something is not working.

Not like testing other modes like rtty or similar where you can test and decode the data in real time
until you know something is working.

Ideas anyone ?

73 de Andy

Best dx so far today on my one watt to 2 el Moxon: RZ6AVM in KN95la at 3039 km.

Hi all

I just connect my Parallax Propeller WSPR transmitter to my 10MHz frequency OCXO with DCF77 synchronisation. So if the system is running stabil, I transmit at different WSPR Bands at AFcenter +23Hz. See if you are receiving at the right frequency.
More information about my rig see at callsign at WSPRnet.org

73 de Peter, DL1FX