The Weak Signal Propagation Reporter Network is a group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation conditions using very low power (QRP/QRPp) transmissions. The software is open source, and the data collected are available to the public through this site.

Please note 80m frequency change to 3.5686 MHz (USB)

Please note, the WSPRNet site has been updated to reflect the change to the 80m WSPR frequency which is now 3.568600 MHz USB.

Thank you to K1JT and G4ZFQ for pointing this out.

73 Gary W1GJM

Forums: 

[From Admins] Map issue -- a fix of sorts

The issue with the Google Maps is related to the change Google made on July 16th, 2018 that severely curtails the free API limits. WSPRNet will be transitioning to an alternative mapping solution as soon as possible.

In the interim I have added a new field to the User Profile form for storing your own Google Maps API Key, if you want to get back to the way things were. You can get your own API Key by following the link below and I would strongly encourage you to read the Q&A down the page.

First TX
-100w dbm

Second TX
-50W dbm

October 16th 2018
1/2 wave inverted V @ 50 ft

Grid FN41 Smithfield, RI

I added a new 7-day km/Watt transmitter rankings list to the top of the km/Watt pages.

http://mardie4.100webspace.net/wspr_grids/kmwatt-17m.html

On 17m, DL6NL has the highest total (almost 3 times as much as the next highest station).

The rankings are based on the last 7 days of wspr reports and add all the km/Watt values of the unique reporters hearing the transmitting station each day.

Rare Haiti station on 160m wspr heard by all Europe:
2018-10-07 03:32 HH2AA 1.838099 -22 0 FK38 5 OZ0AP JO65eg 8042 37 1
2018-10-07 03:32 HH2AA 1.838100 -27 0 FK38 5 DL1SEH JN48pq 7922 44 1
2018-10-07 03:32 HH2AA 1.838092 -25 0 FK38 5 PA5GB JO33kd 7708 39 2
2018-10-07 03:32 HH2AA 1.838099 -28 0 FK38 5 LX1DQ JN39cq 7688 43 1
2018-10-07 03:32 HH2AA 1.838101 -24 0 FK38 5 F59706 JN07th 7365 46 1

Just got one set up for WSPR reporting, will set another up for public access soon.

Hello

My name is Marc Call F5SHN
73's

After about 3 years of requesting an improvement to the database search facility we still have no action in regards to this.

It was hoped that when extra admin people were implemented last year (I think it was) that it might have been easier for this to happen, but as yet I've not seen any change in the ability of database searches.

124.5' of 12 AWG solid copper clad steel wire, sloping upward from about 10' to 30' in the direction of 315 degrees (Nort-West), using a Balun Designs Model 9135sw 9:1 Unun, connecting with 120' of LMR-400 Ultraflex Coax cable.

It's hard to see the copper wire that extends 125' away to the top of that large tree in the center of the picture.

Not shown: Balun Designs Model 1116du 1:1 Maxi Choke Balun and Ameritron ATR-30 tuner.

I'm playing around with the data from two months I downloaded from here. At present, I'm just familiarising myself with the stuff. Here's a table of the mean signal strength reported by Reporter. It varies hugely, and it might be interesting to investigate why. I have cut out those reporters with less than 100 entries.

Here are the top few in August 2018.

Reporter/Average report dBm/Number of reports :

2018-09-09 11:34 WA1ES 14.097098 -21 0 EM56wl 5 G4ZFQ IO90ir 6757 46

I am registering a misuse of my call sign today. I have not done any recent testing on 20m. I have not transmitted on any band today 2018-09-09.

I would hope this is either a database corruption or other user error.

Please be advised I will continue to monitor for any other occurrences of my call sign use.

Regards

Ian

The gap of about 9 s between the ends of WSPR transmissions and the start of the next enables noise level estimates within the 1400-1600Hz audio band that can be used with a passive software-controlled switched delay-line, attenuator and combiner system to provide very useful noise cancellation.

An outline of the approach together with examples of the noise cancellation achieved at G3ZIL on 40m using a pair of inverted V dipoles with their apexes at just 5m is provided in the following pdf.

New to CW. Listening is clear but still not sure if transmitting. Now trying tuner but I fear antenna still not up to transmit yet. Using ubitx QRP radio on 40m. Hopefully I will get a hit on a wspernet soon. Antenna work first it looks like.

W8JHW
Northville MI

Now to figure which software to download and install so I can use this/these mode/s with my Yaesu FTdx-3000. I do have and sometimes use Ham Radio Deluxe. I have downloaded WSJT-x. It appears to be "hearing" stuff as evident in the waterfall display. So far however, no decode is evident. Maybe someone can direct me to the next steps and/or point my browser to a step-by-step instruction set.
Thank you
Dave-KB7GP

Replaced the reception endfed antenna for a mini whip antenna at 5m height. The SDR waterfall display seems much cleaner now and signal to noise level is improved.

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