Saturday, October 23, 2021

KONG43 - Day Eight - And a Visit From Abroad!

Still disturbed conditions and apparently dull. Not so! Brief openings brought us KCSP-MO 610, KVOR-CO 740, WHOS-AL 800, WERC-AL 960 and KRCN-CO 1060 - and probably more.  We also noted the Astoria station on 1230 is on with new calls KKOR, "The Beach 106.3" announcements and of course Oldies format. Tonga-1017 was up very early, but lost way to the Chinese powerhouses after 10:00 UTC. Nothing definite on Kiribati 846 and 1440.

One interesting observation on the 340 beverage the previous night, confirming a finding I had during very disturbed conditions a few weeks ago: Brazil! Almost perpendicular to the 340 antenna, and their carrier seemed to be smeared out over a 100 Hz or more at around 05:30 UTC. Below are three of them, on roughly 1569.98, 1569.95 and 1520.02 kHz. This was also the case on several other frequencies. 

We checked with the 305-degrees Mount Loran recordings where the signals should be closer to the main lobe and possibly stronger. Almost no trace of the Brazilian stations, and what carriers could be spotted, were relatively clean.

So, what has happened? Could it be that the skywave signals from the Brazilian stations were reflected back to the 340 beverage from a point north of us? Similar to FM backscatter? The audio from these stations were somewhat distorted, which may or may not matter. Many stations from Brazil aren't known for their excellent audio quality.

And if so, what happened to the ionosphere at 05:30? Nothing significant, to judge from solar data.

In the evening, a visit from Finland! Jim Solatie and Mika Mäkeläinen have been here before though quite a long time ago, and took the 4-hour drive on winter roads from their DXpedition site in Aihkiniemi for a quick gettogether and some serious dinner! 

From left: Mika, OJ, Ole, Jim, Bjarne. Beer, not orange juice.

We started off with Bruschetta based on OJ's sourdough bread, while the fresh King Crab was being baked on a thick base of sea salt in a large pot. The king crab was, as always, served with Carbonara, and a Kim Crawford Sauvignon Blanc. For dessert we had fresh, lightly warmed Cloudberries with Cointreau and Grappa.

Weather: Occasional snow showers, up to fresh breeze but a bit of sun too. From 2 above to 2 below zero. Today Saturday will be the last full day of KONG43. There will probably be another update on Sunday morning.

Thursday, October 21, 2021

KONG43 - Day Seven

Day seven was variable, to say the least. Under the effect of CH1038, the signals varied wildly, as seen on the red index on both sides of the yaslog below. From 06:00 to 09:30 UTC the signal levels dropped down to zero, before restoring somewhat. The afternoon had mostly signals from Alaska and Hawaii (KUAU 1570 very strong, as you can see).

Not too interesting stuff heard from what we've found live and on the recordings, but these may be worth mentioning: KFOR-NE 1240, KUYO-WY 830 (day power), WKBH-WI 1570, and KABN-AK 960 with a good signal in the afternoon.

Dinner tonight was not home made but at Kongsfjord Guesthouse, a place to visit if you visit this part of the country. It's only 200 metres away from the KONG HQ. We started off with a much needed shower and sauna, and was then treated with a reindeer stew with mashed potatoes, and a tiramisu for dessert. Excellent stuff, and we were well treated by their Italian Chef!

Below is a picture from the KONG HQ around noon today. 2 Celsius, snow and sleet showers and a fresh breeze. 

And finally! Many will know that our interest in beers is somewhat above average. Here's one from KROC-land! Who solves the riddle?

And tomorrow, we will have visitors!

Wednesday, October 20, 2021

KONG43 - Day Six

 First off, a few photos taken at noon today, showing the area around the KONG HQ:

View to the northwest

Balcony with FM antennas, looking southwest

South: neighbours, my bay, sun dog

More sun dog, frozen car

View to the east

And now, "what you've all been waiting for"...
Conditions were reasonably good even today, although our European friends had some concerns and complaints in this respect. A few highlights: WUMY-TN 830, WPAT-NJ 930, WDEO-MI 990,  WWNL-PA 1080, WHLD-NY 1270, WWYC-OH 1560, WISP-PA 1570, WWCD-OH 1580.

Dinner! For starters, the traditional Västerbotten pie, a Swedish course, with lumpfish roe. This was served with leftovers of Kim Crawford Sauvignoun Blanc. The main course was a moose sirloin, generously donated by Olav, LA6VFA, with sauce and a paste of root vegetables (basically the same as yesterday), fried brussel sprouts and the Norwegian traditional lingonberry jam. Served with another batch of Cornas Les Chailles. Dessert: Assorted cheeses, like Papillon Roquefort, Chevre, Gruyere and Morbier, Parmesan and Västerbotten cheese. And what's not to like with a 2006 Dow's Vintage Port?

Weather was quite nice today, cold (-6) but calm, and in the evening the temperature crossed the zero line again, briefly. The moon is up, and the shot below was taken at 19:00 local. I'm quite satisfied with this one. Amazing what mobile phone cameras can do these days. It was pitch black outside.


KONG43 - Day Five

Not a very lengthy post this time.

Conditions continue to supply us with rare and new stations, and the 340-degrees beverage produced signals from North America for 16 hours yesterday. Even if the signal level dipped quite a bit after 04:00, there were some interesting signals very late in the day, like KQLL-NV 1280. However the most interesting loggings were done early in the night, like WHNL-NY 620, WLNL-NY 1000, WKOK-PA 1070, WCJW-NY 1140, WEBO-NY 1330 and WMLP-PA 1380.

340-degrees beverage Yaslog

A few New Zealand stations were audible in the afternoon, but the Chinese powerhouses were just too strong for us.

So then, what's for dinner?

For starters, we had home made (of course!) Salmon Tartare, served with a wine we haven't had access to for many years, the excellent Kim Crawford Sauvignon Blanc from New Zealand!

Time then, for one of our signature dishes, Tenderloins from reindeer grazing in just this area. Served with a brown sauce and paste from root vegetables, and a Cornas Les Chailles red wine from 2018.

And to keep the meal all Nordic (except for the wine), we had Cloudberries and whipped cream for dessert. A bit of Cointreau on the side didn't spoil it.

Weatherwise, the strong winds eased off a bit, and much fewer snow showers, but the temperature dropped as well, to just above 0 Celsius, and during the evening even below. Now, Wednesday morning it's clear skies and -5 and the outlook for the rest of the day is good. Not so for Thursday and Friday.

Monday, October 18, 2021

KONG43 - Day Four

Nice propagation to North America - and finally some New Zealand!

The night started early, with stations like WNCO-OH 1340, KOOQ-NE 1410, KBNP-OR 1410, KLGN-IA 1560, KTGE-CA 1570. In the morning, conditions turned towards the west coast with massive signals from KERN-CA 1180 (whacked antenna system? Supposed to run to the SW on  both day and night pattern), KSDO-CA 1130, and several other not commonly heard stations from the area.

Signal levels were very good, but it was difficult to find new stations. We'll see if closer scrutiny of the IQ files may reveal some surprises.

A bit after noon, we drove to Berlevåg for some shopping, a visit to the local café (which turned out to be closed on Mondays!) and to replace the SSD drive on Mount Loran. Mount Loran is not a mountain at all, but a flat area 90 masl where the dismantled Loran C antenna was set up. Perfect for a 1000-metre beverage antenna. The daily trip is described by the pictures below:

On the dirt  road towards the box with the PC, SDR and battery

OJ (left) and Ole ready to unwrap the tarpaulin

Inside the box: 100Ah Li-Ion battery, PC, Perseus, modem, SSD, Bodnar GPS

Back to the car

By the way, the road going uphill in the background in the last photo is to the Raggovidda wind farm, possibly the most efficient land-based wind farm there is.

Back at the KONG HQ we were greeted with a nice opening to New Zealand! Around 20 stations were positively identified.

And then we greeted OJ with his 4th (!!!!) Delaware QSL, as he received an email from WJWL 900 in Georgetown!

After a couple of beers, like the one below from one of Norway's superb breweries, 7 Fjell in Bergen, it was time for left-overs!

We had quite a bit of lamb shanks left from yesterday, so we made a conversion to meat soup, adding generous amounts of vegetables. Served with OJ's fabulous sourdough bread and real butter. For dessert we had the rest of yesterday's chocolate mousse. With Amaretto of course. And Grappa of course.
Leftovers + new baked bread

Windy again today with some intense snow showers, and the temperature dropped to around 2 Celsius. Our visit to Mount Loran was "between showers". Later in the evening the wind calmed down considerably, and some bare sky became visible. I shot this picture of the moon outside the house. A little aurora too - hopefully no more of that and we can enjoy another night and day with good conditions.
Moon (and a little aurora)

Sunday, October 17, 2021

KONG43 - Day Three

Exceptionally strong signal levels from North America! Propagation started at 22:00 UTC yesterday, and WILB Canton OH 1060 was noted with their sign-off announcement at 22:45. Other stations of interest were KBLE-WA 1050, KYSP-WA 1340, KKAQ-MN 1460, KMVI-HI 900 (among other Hawaiians) and the 100-watts NHK-1 relay of Aomori, Japan on 1584 at 10:00.

Pre-sunrise at the KONG HQ

Unfortunately, Asia and Pacific conditions were uninspiring for the rest of the day. Signals from North America remained into well into the afternoon, but nothing of particular interest was noted.

Just after lunch veteran radio amateur Olav, LA9VFA, paid a visit and brought a moose sirloin and cloudberries to make sure we had enough to eat! Like we hadn't...! Which brings us to the subject of dinner. The usual calf shanks were replaced with lamb shanks this year, cooked for 5 hours in Barolo, and served with potatoes. We enjoyed a quite intense Rioja Gran Reserva 2011 with the meat.

Lamb shanks in Barolo - before

Lamb shanks in Barolo - after

For dessert, a home made chocolate mousse, perfectly perpared by OJ, accompanied with Amaretto, and a little Grappa to finish it all off. 

Chocolate mousse with Amaretto

Weather: Much of the same, just a bit more. Not too much rain, but the wind increased in the afternoon and may get stronger still. Temperatures around 4 Celsius. As long as it doesn't snow, we're happy.

To round off this post, here's a link to one of the most common stations heard in this part of Europe during good conditions. We'll leave it up to you to find out which one! Happy DX-ing!

Saturday, October 16, 2021

KONG43 - Day Two

As reported to various FB groups, last night's reception at the KONG HQ was somewhat uninspiring. Maybe not so for the Mount Loran recordings, although a lot need to be checked. Interesting to note though, that prairie stations from Manitoba and the Dakotas were noted at 22:00 UTC, almost two hours before their local sunset! Maybe we can find some interesting stations in the recordings. 

Speaking of which, much of the time is spent checking IQ recordings. Today we found a few nice ones, like WSVS Crewe VA 800, KLVZ Brighton CO 810, WILD Boston MA 1090 and WENK Union City TN 1240. All these from previous days. 

 Apart from a quick drive to replace the hard drive at Mount Loran, the day was spent mostly indoor. One important chore is to make The Daily Bread, in my case a no-knead bread which is a 23-hour process. Later on, OJ will serve us with sourdough bread.

Dinner! As always on these DX-peditions, we have fried fresh salmon with carbonara. You can see the before and after pictures below. And as almost always, we have a home made Crème brûlée with a small glass of Cointreau for dessert. Here are a couple of pictures:Before:

And when ready to eat...

Weather is still mild for the season, around 5 Celsius, but the wind increased to gale force, and we had some rain as well. I went out to check my water supply before lunch, when I took the photo below. Weather will not improve!

Friday, October 15, 2021

KONG43 - Day One

 Arrival day, so nothing much to say.

Ole arrived very early in the morning after a mammoth drive in inclement weather conditions from Andøya - 1170 km! OJ Sagdahl arrived to Tana by bus from the Kirkenes airport terminal at 12:00 UTC, and we arrived at the KONG HQ at 13:35 after a short stop to buy reindeer tender loins from a local herder. The mountain passing was somewhat slippery. Ole and OJ then went off to replace the battery at the Mount Loran remote site, and collect 6 days of IQ recordings.

Just after arrival

The afternoon was uneventful, except we noted KPEN Kenai AK 840 at 15:40 and onwards. It's a new logging, but how long it's been on the air we don't know. We wonder if it may be the first day of broadcasting?

During the afternoon and evening we enjoyed a few beers, and the Lervig SuperSonic remained its position as a no. 1 beer. Non Puls Ultra. No sorry, that was the aquavit.

For dinner we had a rather traditional fish soup: Chopped carrots, seleriac, rutabaga (or swede?), potatoes, red chili, leak, and not least: Superb quality cod loins. We cooked a large pan, and expected leftovers. Not so.

Le Fish Soup

For dessert: Home made chocolate pudding with custard, and a  Disaronno Amaretto.

So, that's it for today! Temperatures maxed out at 4 Celsius, with relatively calm winds and only very light showers. According to the weather forecast, we ain't seen nothin' yet....

Wednesday, September 15, 2021

4KZ Karumba QLD 1611 - Finally Heard

4KZ, with its main transmitter in Innisfail QLD on 531 kHz, has several translators in and outside the regular MW band. Some years ago, its 400-watt relay in Taylors Beach on 1620 was one of the most common x-band Australians. This location was later taken over by Vision Christian Radio, and 4KZ set up another, 300-watt relay in Karumba on 1611. It took some time until they had a proper antenna ready though, so the four Hot Country stations and not least DWNX in Naga, PHL were very dominating.

In 2019, while discussing my reception of their 5055 kHz SW relay, GM Al Kirton told me they were working on a new vertical for 1611. Apparently they have sorted things out, because a few days ago I had a very clear signal from 4KZ. And not only that, the day after they were audible again, so they will likely be easy to hear in Arctic Europe at least early in the season and after DWNX sign off.

Well... "easy" - once you have a perfect low noise floor, lots of gain in the receiving end and a nice long beverage antenna. And if you want to hear how 300 watts sounds like 12623 km away, have a look and a listen in this Youtube video.

Al sends a traditional QSL and a sticker by mail, something not often seen among radio stations these days.

Karumba is a very small town in the Gulf of Carpentaria. Their 500+ population earn their living by tourism and fishing prawns. There's a zinc mine nearby as well.

Sunday, September 12, 2021

The FM Season 2021 on 71 Northern Latitude

Anyone interested in browsing my 2021 FM logbook should click this link. The logbook is sorted by day, and by time within the day. There may be double entries within a day.

The season came off to a slow start, as I was late erecting the FM antennas. Also, it wasn't anywhere near as productive as the 2020 season, except maybe the last part of July and the beginning of August. And I must admit there were openings I didn't bother to check since it appeared quite predictable which stations would be heard.

I did hear a new country though. Iceland was heard several times, although limited to the northeastern part of the country.

Next year I think I will change tactics a bit. To the south, the one-hop Es possibilities are more or less explored the last 3 years. So it may be more interesting to point the antennas to the west-northwest, and to the east. Iceland (and beyond) may be interesting, as would Siberia, Kazakhstan and Xinjiang.

The SDRPlay RSPdx SDRs work well, although my PCs limit effective sampling rate to 6 MHz each. For the same reason, the Elad FDM-S3 can't sample more than 12 MHz. So I decided to focus on the lower part of the FM band.

The SDRs made 24/7 IQ recordings, and I spotted openings by examining continuosly saved waterfall images. HDSDR and SDR Console were my tools, together with two 8-element antennas from  InnovAntennas, and splitters/preamps from Cross Country Wireless. And a number of 8-TB hard drives. The logbook is from

Saturday, September 11, 2021

KONG42: Preparations For The 2021-2022 Season

Every year in early September, the KONG crew (me, OJ Sagdahl and Ole Forr) meet at Kongsfjord, Arctic Norway to make the final preparations for the upcoming season. So, here is KONG42, day by day. 


OJ and Ole arrived around 09 local after a long ( 20-hour) drive through Sweden and Finland. While in Sweden, they met with Swedish MW DX-ers Bo Olofsson and Lars Eriksson. After unpacking, the first task was to set up the remote-controlled Perseus+Jaguar setup at the gridless Mount Loran, including erecting the 1000-metre beverage. Weather was cool but dry - and dry weather is always a good thing when working outdoor - we would soon encounter the opposite. Below is me, 15 km away from Kongsfjord, demonstrating irregular use of the mobile phone.

After completing the Loran setup, we headed home to put up the dual, staggered 340-degrees beverage. The 50-, 80- and 310-degrees beverages were already up but needed some TLC at the end points as grounding was a bit sub-par.

Never a KONG DX-pedition without food and drinks! For dinner we had a traditional course named "Salma Carbonara" - sushi-grade salmon fillets cut and gently fried, and our take on the carbonara - tagliatelle with lots of bacon, cream, parmesan cheese and egg yolks.  For dessert: Home made chocolate pudding and not so home made custard. We had a splendid Belleruche Cotes-du-Rhone wine with the salmon, and Disaronno Amaretto with the dessert.

Dry weather on Thursday, a bit windy, gusting at strong breeze, and 6-8 degrees Celsius. Quite the normal September weather.


The dry weather was not to last... a nice and sunny morning had to make way for wind and rain. We had more jobs to do on Mount Loran, so we found a "dry" weather window on the weather site, and drove off. It started out very well indeed. Then it just got worse. First, some drizzle. Then the wind picked up. And it started to rain. And it rained more. And more. And then... hail! Although we thought we were well dressed for outdoor work, the weather overwhelmed the clothing to the point where we were wet to the skin - and with the temperature at 6 degrees it became bitterly cold as well. Still, we got the job done, well most of it anyway, and headed home in a warm car to dry ourselves and our clothes.

OJ and Ole preparing for the job, unaware of the weather awaiting

Here's a short Youtube clip of the hailstorm...

We eat a lot of seafood on our KONG DX-peditions, after all we live in a part of the world with access to extreme quality wild and farmed fish. Friday's dinner was home made fish gratin (Mjelde style), with fresh cod fillets, bacon, carrots, leak and celeriac all blended in a thick white sauce and baked in the oven. For dessert: The rest of the chocolate pudding! A Meinklang Grüner Veltliner was an excellent wine for the occasion.

So, weatherwise we certainly got our share of the autumn weather with lots of rain and gale force winds.


Drier! But not entirely so. Light showers came in from the ocean most of the day. However, the remaining issues we had at Mount Loran were solved without any rain at all. Propagation saw a turn for the better overnight on all antennas despite high K indices. Stations of interest after a quick scan were WCAR Livonia MI 1090, WHLD Niagara Falls NY 1270, WWCK Flint MI 1570, KOKB Blackwell OK 1580. After returning from the Loran site we dismantled my two FM antennas for the winter.

A few problems had to be sorted out before leaving the Loran site.

The last dinner this DX-pedition was a leg of lamb, baked for 7 hours (!) at a very low temperature, together with fried brussels sprouts and mashed root veggies. We had another batch of the Belleruche red wine. Dessert: Cloudberries and whipped cream with Amaretto. The berries were picked on my own land, between the paths of the 50-degrees and 340-degrees beverages.

Ole and OJ will leave early Sunday morning, and I will eventually return to my home in Tana bru.

Apart from drinking excellent red and white wine, we enjoyed some superb Norwegian beers, like Supersonic from Lervig, Dead Cat from Graff, and American IPA and Two Captains IPA from Nøgne Ø. They are truly exceptional.

Sunday, April 25, 2021

Elad FDM-S3 Again - Problems Solved?

Apparently, the problems I had with connecting to the S3 after a PC reboot or power down, have disappeared! Don't ask me why. It's the same PC, same USB port in use, no updates, nada. It would be only fair to update the article based on these findings. I also tested the FDM-SW2 software, and found it a lot more easy to record 24 MHz to a hard drive than with SDR Console. Still hoping for HDSDR support though.

Here is the revised article.

Saturday, April 17, 2021

Approaching End of Season - Removing Beverage Antennas

Last weekend I started taking down the beverage antennas. The NA season was mostly over, and the reindeer migration was underway, so the 310 beverage and the dual, staggered 340 beverage were reeled in and taken indoor. Asia and Australia are still heard a few weeks, so lowered the 50 beverage and the 80 beverage to the ground, basically making them BOGs.

Today the time was come to collect the 520-metre 50 beverage. It's a fairly easy job on wet, rainy ground because the friction is a lot less. It does weigh a bit though, so a wheelbarrow comes in handy for the 200+ metres transport to the KONG HQ.

The 80 beverage is still out, and will be the prime Australia hunter for the next couple of weeks. It is impossible to take down anyway because the last 30-40 metres of it is covered in a concrete-hard, 2 metres high snow drift.

Looking in the direction of the 50 beverage

Heading towards the KONG HQ

Friday, April 09, 2021

First Impressions of the Elad FDM-S3

I've had the FDM-S3 a couple of weeks, and physically it is a totally different beast than for instance the SDRPlay RSPdx or Airspy HF+. For better - and for worse. Here are my first impressions of the Italian flagship. 

Friday, April 02, 2021

The Bodnar Mini Precision GPS Reference Clock: A Perfect Tool for the Perseus SDR

(Updated May 2021)
Older SDRs aren't very stable. Well, compared to old boatanchors and even newer conventional receivers, +/- 1 ppm is excellent. But when keeping track of the offsets of stations is an important factor in MW DX-ing, we do not want the radios to drift. The Perseus SDR, though a magnificent radio in so many aspects, does drift. The stability vs. ambient temperature is +/- 1 ppm, while current SDRs do a lot better, 0.01 ppm or even 0.001 ppm with an OCXO and GPS reference.

At the KONG site, ambient temperatures routinely vary between 10 and 20 degrees C, and in extreme cases (also this winter), down to almost freezing. The Perseus drifts a lot during these temperature changes. We have seen 6-7 Hz drifting over a 10-15 degrees temperature change. Keeping track of offsets becomes challenging and manual calibration on known stable stations is often impractical.

The Bodnar Mini Precision GPS Reference Clock has gained some fame in the DX and radio amateur world for being a relatively low cost, high accuracy tool for reliable frequency readout. With it, you can insert a reference signal to your SDR.

There is no input for a reference signal in the Perseus SDR though. And since we only sample the MW band, we needed the reference signal to be present within the bandwidth we sample. The signal output from the Bodnar is +6 dBm even at its lowest setting, which would need some serious attenuation of the signal to avoid saturation. And with nine Perseus SDRs, did we have to buy nine devices?

No, we didn't. The nine SDRs are fed from four splitters, one for each beverage feedline. With the high signal level of the reference signal, it is in fact easier to wrap a wire from the signal output around the feedline. Induction rules, and the signal level is a lot lower. So, we still had to buy four devices?

No, we didn't! The reference signal is very strong, and the feedlines physically very close to eachother. So we followed a suggestion on the Jaguar Pro reflector and ended up with having to buy only one! A few turns of wire around each feedline provided us with a GPS reference on 1705 kHz for all our four beverages and nine Perseus.

It should be noted though, that our solution is based on the Jaguar software for Perseus - Jaguar enables us to manually or automatically calibrate readout. It should also be noted that the wire from the GPS is very much "live" when not attenuated, and will produce a signal, in our case every 1705 kHz up through the HF spectrum. 

The device needs a 5V power source, which I found on a spare USB port on one of my PCs. The connection also enables communication with the device itself. The only other requirement is of course access to open sky for the GPS antenna.

Saturday, March 27, 2021

Elad FDM-S3 - Very First Looks

 So I decided to buy one. At 780 EUR + Norwegian VAT I could easily buy three RSPdx for one S3. And probably fit six of not more of them inside the S3 cabinet. But it was intriguing to test a proper 16-bit ADC SDR with HF and FM coverage and 24 MHz sampling rate.

The money drain didn't stop there. To be able to sample 24 MHz, none of my PCs are even close in performance. So I bought a Lenovo ThinkCentre desktop which set me back as much as the S3. The all-cores passmark is 13000-ish so it's reasonably quick.

The S3 arrived two days ago, one day after the Lenovo. I set up the combo at my home here in Tana, where I have no antennas, for testing performance and compatibility. They seem to work very well together. I have been running the S3 with SDR Console at 24 MHz sampling for 30 hours now, with no issues at all. CPU usage is quite stable around 34 %. During IQ recording, the load increases to 40 %.

During the Easter holiday I expect to have lots of time to explore the SDR in depth, including doing the mandatory MW sensitivity measurements. Below some photos from unpacking and first run.

S3 in blue colour, "matching" USB 3 cable + Powerpole DC cable. No PSU supplied but three SMA to BNC adapters were most welcome.

Yikes! Boatanchor!

S3 running with a headless Lenovo ThinkCentre (behind), remote-controlled with the Dell laptop.

Tuesday, March 02, 2021

Winradio G31DDC - Now With SDR Console

July 2010: I received my first Winradio G31DDC from Waters & Stanton in the UK. I was looking for an SDR at least as good, or preferably better than the Perseus SDR, and this was it. Armed with a 16-bit ADC and slightly better sensitivity, it was Winradio's attempt to cater for the DX community rather than professional customers. 

I didn't fancy the graphical user interface though. And what's worse, for one used to making IQ recordings, both live and scheduled, its software failed miserably. First, the IQ files could not be date- and timestamped. Why on earth....? Second, the scheduling option was audio ONLY! Why, oh why.

Later on, the G33DDC appeared which solved these "issues", but at more than double the price. The GUI itself was still not what I wanted, and no third-party software was in the pipeline. Then came the Jaguar software for Perseus, a giant leap for DX-ers who want to schedule, record and analyze IQ recordings. So, both Winradios were sold.

Fast forward to 2021: SDR Console and Simon Brown decided to work on the G31DDC. By coincidence I had a G31 belonging to an estate, waiting to be sold, and decided to wait out Console support. I got a beta version in mid-February, and it worked well, although without an antenna. When I drove to the KONG HQ last weekend I brought the G31DDC with me, and got it playing with a beverage antenna. 

Let there be no doubt: This is a first class SDR. Console is a very good overall SDR software, and the combo works extremely well. Since I DX the MW band almost exclusively, the Perseus/Jaguar combo will remain my favourite setup. But for most DX-ers, the G31DDC + Console combo is hard to beat. Not least because it's an active product from an active manufacturer who is in the radio game for the long run. 

I just had to buy the G31DDC.

And support for the G33DDC is nigh!

Friday, January 08, 2021

6 Watts, 1485 kHz, 2540 km

There's been a few DX tests this season, and rather by coincidence I stumbled upon another one the other day. The IRCA and MW Circle reflectors reported that Mittelwellen-Sender Joe, transmitting from Erlangen in Germany on 1485 kHz, was sending periodic 1000-Hz tones - one second on, one second off.

Now, that sounded like a nice challenge. The first evening I tested I heard the transmission right away at the KONG HQ, and a very good signal at Smøla. DX-ers in Scoland and Ireland also reported the signal. The initial enthusiasm faded a bit when I later learned that the effect was in fact 100 watts, not 6. 

What I hadn't noticed from the reflector posts was that from 17:00 to 05:00 UTC the power is 100 watts, the rest of the day 6 watts. I had been listening in the evening.

So I decided to try again, and focus on the period before Germany's sunrise. I monitored the signal from 04:58 (100 watts), and then at 05:01:35 the relatively strong signal disappeared...almost! A very faint signal was still there, and I got my 6 watts, 2540 km reception! The image below shows the weaker tones above the red line as the signal dropped.

Perseus/Jaguar recording, SDR Console playback

I chose the 540-metre Asia/Pacific beverage antenna for the reception, because its back lobe crosses western Europe. Interference mostly from SER Radio Santander.

More informasjon about Joe can be found here.

Ordinary programming may resume soon, so I don't know for how much longer it's possible to hear the tones 24h. The tone will be broadcast from Midnight to 05:00 (presumably UTC), but at what power I don't know.

I really think this 1000-Hz test should be able to travel quite far at 100 watts. The eastern shores of North America should be possible. At least worth a try.