Hello friends,
With poor reception in many locations in recent weeks, we will transmit two Olivia modes that often survive weak signals and/or interference: Olivia 64-2000 and Olivia 32-2000. The 2000 refers to the bandwidth in Hz, so make sure your receiver can accommodate these modes extending from 500 to 2500 Hz above or below the carrier frequency. The SSB and AM modes on most receivers should be adequate. Also, these Olivia modes work better if Fldigi's squelch (SQL) is off.
You will notice that these Olivia modes are slow: about 24 wpm for Olivia 64-2000 and 48 wpm for Olivia 32-2000.
Wishing you poor reception this week, so you can see how these Olivia modes cope with adversity.
Reception was good, in most parts of the world, this past Wednesday at 1330-1400 UTC on 15770 kHz from WRMI Florida. Unfortunately, the WRMI transmitter went off the air shortly after 1330 UTC. Then it came back for the first MFSK64 image, the flags of Norway. Then it quit again for the rest of the half hour. Hoping for better luck on 15770 this Wednesday.
A video of last week's Shortwave Radiogram (program 385) is provided by Scott in Ontario (Wednesday 1330 UTC) -- but the WRMI transmitter was down for most of that half hour. However, H0b0_Radio in Washington state has made available an IQ recording of the Monday 0800-0830 UTC broadcast. The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany.
Here is the lineup for Shortwave Radiogram, program 385, 17-22 January 2025, in MFSK and Olivia modes as noted:
1:48 MFSK32: Program preview
3:09 Olivia 64-2000**: Arctic permafrost is sinking
7:50 Olivia 32-2000**: Arctic permafrost (continued)
10:27 MFSK64: Blue Origin's New Glenn rocket launches*
14:58 MFSK64: Images of the week*
28:12 MFSK32: Closing announcements
* with image(s)
** Turn off Fldigi's squelch SQL for the Olivia modes
Please send reception reports to radiogram@verizon.net
And visit http://swradiogram.net
Twitter: @SWRadiogram or https://twitter.com/swradiogram
(visit during the weekend to see listeners’ results)
Facebook group: https://www.facebook.com/groups/567099476753304
Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway
Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.
Thanks for your reception reports!
Kim
Kim Andrew Elliott, KD9XB
Producer and Presenter
Shortwave Radiogram
Reporting on international broadcasting at https://twitter.com/kaedotcom
