Alternate step c: Go to https://p1k.arrl.org/lotwuser/default and log-on click, "upload file," select My Documents/lotw/<filename>.tq8 and click "upload." Depending on how busy LotW is, you can often
* YX0A operator reported SK, DXpedition adopts memorial call sign: YX0A Aves Island DXpedition team member Jose "Joe" Manuel Valdes Rodriguez, YV5LIX, reportedly died on the tiny Caribbean island Ap
Herb, So why was it not listed in the proper category (VI Section) instead of not being listed? The rules are suspiciously silent on the status of US Possessions. However, multipliers are W/VE sectio
Jim, you've opened a real can of worms. You can't say there is "data" to the contrary ... there may be legend, anecdote or even model studies but there are no validly conducted field strength studies
That's about right for an 80 meter system. The N7CL work that N4HY and N2EA reference indicates that elevating the "ground plane" 1/4 wave above ground gets the coupling into the soil down to insigni
Dave, The "problem" with simulation is the assumption that ground (earth) is homogeneous and uniform. With "real" ground this is certainly not the case - probably even with (relatively) large open ar
and Be careful of over simplification. Because feedlines can (and often are) several wavelengths long (particularly on the higher bands), you need to specify ranges here. Once the line is longer than
All Electronics has a wide variety of "wall wart" supplies: www.allelectronics.com/cgi-bin/category/815/Wall_Transformers.html While most are US standards there are some with "European" plugs. There
Mike, This is only true if the bandwidth is determined in the detector as happens with a DSP demodulation. Since most amateur transceivers set the demodulated bandwidth with a crystal or mechanical f
Nothing against the Inrad roofing filter mods but do the W8JI noise blanker mod first (it involves moving one resistor). You may find that the IMD issues are due to IMD generation in the noise blanke
All three of these systems raise the base and elevated radials to a point at which they can be considered somewhat independent of the earth. The behavior is expected and consistent with the work done
Mike, This is a perfect application for a box like the MFJ "noise canceller" or the DX Engineering "Noise Canceling Controller" with a pair (or three) active antennas. Three antennas (one common, the
Also check surplus houses. For example, Skycraft in Orlando FL (www.skycraftsurplus.com) lists a 1000' spool of teflon covered spools of bare #16 stranded copper (braided) and PVC insulated #18 (if I
Steve, The TS-830 has the ability to do a separate receive antenna without modification. Look at the Transverter jack (DIN8/262) - pin 8 comes from the T/R relay and pin 5 goes to the receiver. Add a
I would also suspect re-radiation from the inverted L - particularly since directivity falls apart as the frequency moves closer to the "resonant" frequency of the inverted L. The vertical wire on t
This is exactly the problem ... ARRL 160 has been there for 30+ years and generally fills the band from 1800 to 1875 +/- from before sunset on the US east coast until nearly sunrise on the west coast
The article on the Lazy V array for 160 meters was by K3LR in QST, August 1994 pages 36-38. If you are an ARRL member you can download the article through the ARRL Periodicals Archive Search at www.a