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Many thanks to SWLing Post contributor, Markku (VA3MK), who notes that Swiss manufacturer Stampfl has introduced the MWS-1 Standing Wave Barrier.
Stampfl notes (translated from German):
A standing wave barrier can improve reception. The standing wave barrier interrupts the ground loop and suppresses the interference caused by the cable shield.
This is designed only to work with receivers (not transmitters) between 0.15 – 30 MHz.
I suppose this might be a form of an RF choke, although I’m sure someone else might know better.
Many thanks to SWLing Post contributor, Markku Koskinen, who shares the following announcement from NAV CANADA:
NAVAID Modernization Program – Phase 6 National
NAV CANADA, the country’s provider of civil air navigation services, conducted an aeronautical study that reviewed the requirement for Non-Directional Beacons (NDBs) and Very-High Frequency Omnidirectional Rangefinders (VORs).
The study concluded that given the comprehensive radar surveillance coverage, and the propensity of area navigation (RNAV) with GNSS equipped aircraft, many navigation aids (NAVAIDS) are no longer required and should be decommissioned.
Where a current NAVAID identified in the study serves as an instrument approach aid or anchors an airway segment, NAV CANADA will ensure that a RNAV (GNSS) instrument approach procedure or RNAV airway segment is published, where required, before removal of the identified NAVAID.
Implementation is ongoing and will progress for the next several years. The sixth phase is represented below. Subsequent Notices of Change will be published for each upcoming phase.
Indicator – NAVAID Facility Name
YEA – Empress VOR
XD – Edmonton/Blatchford NDB
YHK – Gjoa Haven NDB
NL – St. John’s/Signal Hill NDB
ML – Charlevoix NDB
YPH – Inukjuak NDB
YKG – Kangiqsujuaq NDB
YXK – Rimouski NDB
YMU – Umiujaq NDB
YRR – Ottawa/Greely NDB
UL – Montreal NDB
OU – Quebec/Ste-Foy NDB
YLQ – La Tuque NDB
UFX – Lourdes-de-Joliette/St-Felix-de-Valois NDB
NM – Matagami NDB
YLA – Aupaluk NDB
VLV – St-Georges/Beauce VOR
YZA – Ashcroft NDB
LU – Abbotsford/Cultus NDB
QQ – Comox NDB
IB – Atikokan NDB
VC – La Ronge NDB
ZHD – Dryden/Barclay NDB
YL – Lynn Lake NDB
QW – North Battleford NDB
TH – Thompson NDB
ZTH – Thompson/Headframe NDB
BY – Beechy NDB
QN – Nakina NDB
YSB – Sudbury VOR
ZSB – Sudbury/Noranda NDB
YXI – Killaloe VOR
YSO – Simcoe/Lindsay (Kawartha Lakes) VOR
This change will take effect August 12, 2021 at 0901 Coordinated Universal Time (UTC). The appropriate aeronautical publications will be amended.
What a nice and simple little stand! Thanks for sharing this, Markku. This would work (I assume) with any of the CountyComm and Tecsun Portables with a similar form factor.
This speaker option is similar to the one we featured a few months ago, but keeps the larger 2200 mAh battery pack and has fold-out legs. The compromise is the case will be a bit thicker/deeper than the speaker option without the larger battery and fold-out feet.
We’re talking about a pretty small radio, though, so I think this will be another great option for the excellent little Belka-DX.
I will plan to check out one of these in the near future.
Many thanks to SWLing Post contributor, Markku Koskinen, who notes the following new and updated programs for the Icom IC-705 general coverage transceiver:
The app appears to control basic functionality like tuning, band, mode, filter, and CI-V address switching. The app is free and should work on most Android devices.
Changes from version 1.10: Fixed the problem of when the ANL of the band that is not used is ON, while the Dualwatch function is OFF, the received DCR audio may not be output from the speaker.
