Friday, January 20, 2023

EI9KP to carry out 34 MHz Propagation Tests on Sat 21st & Sun 22nd Jan 2023

Phil, EI9KP has announced that he will be carrying out test transmissions on the 34 MHz band (9m) band on Saturday the 21st & Sunday the 22nd of January 2023. The beacon will operate from 11:00 until 17:15 UTC on both days. The purpose of these tests is to investigate F2 layer propagation.

EI9KP will be transmitting on 34.013 MHz. The sequence of the beacon will be 2 x FT8, 2 x CW ID & Locator, short carrier.  The 2 x CW part is to help SWL's who do not use digital modes and also help during QSB cycles.

The beacon will be GPS disciplined with an output power of 1-watt. The antenna is a horizontal dipole with capacity hat loading.

To listen for this beacon, try 34.013 MHz CW or 34.0122 MHz USB.

Predicted Coverage Areas...

The map above shows the predicted coverage area for a 1-watt FT8 transmitter operating at 30 MHz. It's not quite 34 MHz but it's close.

It clearly shows the first F2 hop going from Ukraine, Romania, Bulgaria, Greece... to the far south of Italy and perhaps the far south of Spain and Portugal. The path to the Canary Islands looks particularly good.

To the west, the first F2 hop includes Newfoundland and the recent tests confirm this. Phil writes... "Larry VO1FOG reports receiving the beacon at 12:42UTC (his email time stamp) and all the way through till sunset, which for my QTH was 16:48UTC.  F2 layer propagation.  He reports that the signal was particularly strong about half an hour before sunset, to disappear all together at sunset. He reported a similar signal peak yesterday, just before sunset."

It's possible the second F2 payer hop might reach parts of the Caribbean and the SE of the USA.

Sunset for his Phil's location is at 16:54UTC on Sat 21/01 and 16:56UTC on Sun 22/01.

Reports to EI9KP on QRZ or you can leave a comment here.

Note that it may be possible for stations in western Europe to hear the signal via backscatter. Leave your radio on 34.0122 MHz USB and see if you can get a decode of the FT8 signal.


Stefan said...

I turned on the receiver at around 16Z and got a few decodes on an indoor non-resonant dipole in Southern Switzerland JN46lj.
I will keep it running tomorrow the entire day.

165315 -19 -0.2 1001 ~ DE EI9KP IO54
165400 -11 -0.3 1001 ~ DE EI9KP IO54
170000 -9 -0.3 1002 ~ DE EI9KP IO54
170100 -15 -0.3 1001 ~ DE EI9KP IO54

Stefan HB9TMC

Anonymous said...

Heard Fil's beacon without any problem in IO53OT.About 5/3. Clear tone, no issues here. I tuned in for several hours.

73 de Michael/ei3gyb

Unknown said...

I copied the 34 mHz beacon on FT8, Saturday Jan 21 2023 in grid square EL98HP, central Florida using Icom 7610 and dipole in attic up 3 meters.

161000 -20 -0.5 958 ~ DE EI9KP IO54

Dave. N4EF

Anonymous said...

Copying EI9KP for 11 decodes here in EM22 de K5YT
151415 -18 -0.5 151 ~ DE EI9KP IO54

Anonymous said...

We're very fortunate that the Irish authorities have allowed such a generous allocation to amateur radio.

I wonder if anyone has considered setting up something similar to an ionosonde so the transmitter tracks up in frequency from 30-50MHz every 15 minutes or so so remote monitors using SDRs or having waterfall displays can see at a glance where their MUF is? Consider it like a dynamic beacon or something along the lines of the International beacon project but with finer detail.