This will be another weekend of changes: Most of Europe will move its clocks forward on March 26. That same day the A23 HF (shortwave) frequency season begins. Many shortwave broadcast stations will change frequencies to adjust for seasonal propagation…. Leer más ›

In North America, the transition to “daylight savings time” is now complete. WINB maintains its schedule on Eastern Time in the USA, so Shortwave Radiogram will be one hour earlier by UTC. The WRMI frequencies used for Shortwave Radiogram stay… Leer más ›

This is the time of year when time changes and frequency changes can complicate our shortwave listening. In most of North America, clocks will move forward one hour on Sunday, March 12. The only impact this weekend is that the… Leer más ›

I missed most of last weekend’s show (program 293) while in Florida for a family gathering. Thanks to Al @WD4AH_Al and Mitch @Plano26 for monitoring the @SWRadiogram Twitter during my absence. In a sure sign of spring, last night I… Leer más ›

Snow and ice will affect much of North America this weekend. Good luck if you and your antennas are affected. Down here in Virginia, the weather will remain boring except for higher than normal temperatures. Shortwave reception will not be… Leer más ›

Here in northern Virginia, our strange winter of higher than normal temperatures and no snow continues. Maybe we will get some winter before winter is over. All of the Shortwave Radiogram broadcasts were transmitted as scheduled last week – except… Leer más ›

Lately all of our broadcasts have been without mishap. The Saturday 2300-2330 UTC is, however, “interesting” because of the noise that has been co-channel the  past few weeks. It sounds more like jamming than data, but this does not rule… Leer más ›

In the northern hemisphere, nights are still long enough that our “red-eye” transmission Monday 0800-0830 UTC on 5850 kHz often reaches the western parts of Europe. Sometimes a Stanag military data signal is also on 5850, but the Shortwave Radiogram… Leer más ›

I hope the year 2023 is starting well for you. Here in northern Virginia, we could use some rain, or snow, or anything wet. A  reminder about recent Shortwave Radiogram schedule adjustments: 1) The new Friday 0530-0600 UTC on 7780… Leer más ›

I hope you have been enjoying the holiday season. Best wishes for the new year. Bear with me if I type “2022” a few times when I should type 2023. And if you were affected by Winter Storm Elliott (where… Leer más ›

Merry Christmas, Happy Hanukkah, and all the associated holidays. Yet another schedule change to report. During the past two weeks, listeners reported the absence of a signal on 9955 kHz during the Tuesday 1530-1600 UTC transmission. I checked the WRMI… Leer más ›

Our transmission last Tuesday at 1530 UTC on 9955 kHz was not on the air due to some issue at WRMI. I am hearing WRMI now (2255 UTC) on 9955, so whatever the problem was, it’s resolved now. Our newest… Leer más ›

I hope listeners in the USA had a good Thanksgiving. And good wishes to everyone as the holiday season develops. See The Mighty KBC section below for news about their future frequency and transmitter site. A video of last weekend’s… Leer más ›

Summer has transitioned to Autumn – or vice versa in the Southern Hemisphere. The seasons changed abruptly here in Northern Hemisphere, when a cold front brought cooler temperatures and gust winds. Tomorrow (Friday) I will walk three blocks for a… Leer más ›

The Mighty KBC moves to its winter frequency of 5960 kHz this weekend: UTC Sunday 0000-0200 UTC, Saturday evening in the Americas. See KBC section farther down in this email  … September is here. Here in the Washington DC area,… Leer más ›

Here in the Washington DC area, we are finally enjoying some relief from the heat and humidity. Our windows were open all day today. Nighttime temperatures will be below 70F (21C), for the famous “sleeping weather.” We will still experience… Leer más ›

We had success last week with our transmissions of Turkish text (now that Turkey is blocking the websites of Deutsche Welle and the Voice of America). I am not aware of any remotely tunable SDRs in Turkey, but reception via receivers in… Leer más ›

Our Russian text experiment last weekend was successful, with the MFSK32 decoding 100% via an SDR in Russia despite the distance from our WINB and WRMI transmitters. This weekend, we will try another language: Turkish. Turkey’s decision to block the Turkish-language online… Leer más ›

This weekend, Shortwave Radiogram will again try some Russian text. So far we have not been able to convince any of the international news organizations that provide content in Russian to transmit text via shortwave on a regular basis. A… Leer más ›

Greetings and good luck to radio amateurs in North America who will be participating in the ARRL Field Day event, June 25 and 26. Let’s hope both space weather and terrestrial weather cooperate for everyone taking part in Field Day…. Leer más ›

One or more of the WINB transmissions might begin with the text “Welcome to program 186 of Shortwave Radiogram.” The show actually is program 258.  This error will not appear in the WRMI transmissions. The repeat broadcast last weekend is… Leer más ›

This weekend’s program (254) will be repeated the following weekend (May 5-10). I will not send the usual weekly email reminder on May 5. Apologies for the missing Shortwave Radiograms that past two Fridays at 1300-1330 UTC on 15770 kHz…. Leer más ›

This weekend’s program (254) will be repeated the following weekend (May 5-10). I will not send the usual weekly email reminder on May 5. Apologies for the missing Shortwave Radiograms that past two Fridays at 1300-1330 UTC on 15770 kHz…. Leer más ›

There were mishaps last weekend with the Friday broadcast. The 1300-1330 UTC transmission was occupied by Brother Stair due to a mistaken entry in WRMI’s automation system. And the 1500-1530 UTC DRM transmission from WINB Pennsylvania on 15750 kHz also… Leer más ›

The Greek government has decided to delay the decision to eliminate shortwave broadcasting from March 31 or May 31.  To help the Greek government in its decision, last week Shortwave Radiogram transmitted Greek text, as a demonstration of radio as… Leer más ›

If you have not done so already, please note the new transmission schedule of Shortwave Radiogram, which is listed below. We are no longer broadcasting Saturday 1330-1400 UTC. And the “red-eye” show has been moved from Sunday to Monday, same… Leer más ›

This weekend, in North America, the transition to Daylight Savings Time is complete. Political sentiment in North America is in favor of year-round Daylight Time. This would end these confusing weekends. (Although I would prefer year-round standard time.) All of… Leer más ›