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Topics - NJQA

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SDR - Software Defined Radio / KiwiSDR and HFDL
« on: November 16, 2021, 1746 UTC »
The latest software build for the KiwiSDR has added a HFDL decoder.

SDR - Software Defined Radio / KiwiSDR updates
« on: November 16, 2021, 1719 UTC »
If you own a KiwiSDR, check the firmware version.  The latest version is 1.474 (as of today); if you have that then no need to read further.

If your KiwiSDR is showing version 1.462, then the update process is broken and manual intervention is required.  Details on what you need to do are here:


Bacon, BBQ, Beef, And More / Blasted Steaks
« on: September 21, 2021, 1220 UTC »

22 Meter Band HiFER Beacons / NHVT
« on: July 04, 2021, 1414 UTC »
Heard 1413Z on 13558.9.  Weak and fading.   First time heard here.

Equipment / 630M Loop on the Ground (LoG) antenna
« on: May 23, 2021, 1255 UTC »
Detailed analysis and report on a 630M Loop on the Ground Antenna.


Equipment / Blackcat 22M Xmtr
« on: May 08, 2021, 1513 UTC »
The Blackcat 22M transmitter gets some exposure on page 53 of the June 2021 QSTÖ

Equipment / AN200 antenna
« on: April 27, 2021, 1411 UTC »
Ham Radio Outlet has the Eton AN200 for $15.  (The current Amazon price is $35.)

Equipment / Portable HF Flag Antenna
« on: February 11, 2021, 1234 UTC »
The March issue of QST has an article on building a portable Flag antenna for HF direction finding.  This is useful for HF xmtr hunts or locating interference sources.  The antenna is broadband and has a 20 to 30 dB null.

You can build it for $5 worth of parts, or buy a kit at DX Engineering for $119 (!)

A copy of the QST article and the DXE instructions are here:


Amateur Radio / HFT interference to ham radio
« on: December 27, 2020, 1546 UTC »
KA7OEI discusses HFT encroachment on 20 meters.  The FCC has apparently authorized some of these transmissions in and adjacent to amateur HF bands on a not-to-interfere basis.  There is some information on who to talk to if you think they are causing interference.


General Radio Discussion / IBOC list
« on: December 14, 2020, 1512 UTC »
Useful listing of operating IBOC stations.


Equipment / RFSpace
« on: November 28, 2020, 1915 UTC »

Are they really back?  The last post to their blog was in 2012.


Equipment / Scanner beam
« on: September 26, 2020, 1252 UTC »
These might make good scanner antennas (mount for vertical polarization).  In bulk, they are $12 each and have a Type F connector.


They remind me of the scanner beam that Grove sold many years ago.

General Radio Discussion / SK: Dallas Lankford
« on: September 21, 2020, 1216 UTC »
I hadnít known of Dr. Lankfordís passing.

Dallas wrote many great articles on antennas and receiver mods for DXing.  He will be missed.


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