I suggest you contact Elecraft directly. We broke down two KPA500's during the 2016 CQWW 160 on its PTT line, probably due to our own failing PTT setup. E-mailed Elecraft for repair instructions; pro
Hi Gary, Keep moving as much as you can to get strong again. Hope to work you during winter '17/'18 73, Mark PA5MW 73, Gary KA1J _________________ Topband Reflector Archives - http://www.contesting.c
Hi Sean Using BOG antennas here for >5yrs now. 150ft is a bit short, but will work. Preferably use 200-250ft. From 300ft onwards I experienced clear degeneration of the S/N advantages. Lots of info o
Hi Manoj. Much appreciate your (RX antenna) efforts ! Don't worry too much about the typical negative comments, especially those on chat-rooms. Today's world is too much about "instant gratification
I also read somewhere these are navigation beacons in North East-sea area. Anyone have a known explaining source for this? Their transmission consist of three T's; where the 3rd one is 20dB lower in
Here it is: http://alancordwell.co.uk/Legacy/radionavigation/hifix/soundclips.html scroll down to 'Other hyperbolic systems' : BRAS BRAS Now as it happened, David Sparvell G4FTC pointed out to me tha
Best explanation can be found here: http://alancordwell.co.uk/Legacy/radionavigation/russian/bras.html 73 Mark PA5MW _________________ Topband Reflector Archives - http://www.contesting.com/_topband
And just tonight they are loud again: https://www.flickr.com/photos/pa5mw/39676032834/in/dateposted/ Signal level: 25dB above bandnoise RX antenna: 60mtr BOG in a ditch QTF 30 73 Mark, PA5MW I emai
About PI5EHV-8 DX Cluster: The site was terminated end of 2014, effectively closing the clubstation of University of technology Eindhoven(PI5EHV) and its contest clubstation (PI4TUE). 73 Mark PA5MW O
Some field experiment results from 2016 Location: large farm field Antenna: Inverted L, using two 21m masts Note: this theoretically puts Rs at around 18 Ohm Ground: - Checken mesh: 6 pieces 8x1m cro
Based on my field installed beverages experience, I would say this is exactly what I always read on my ant analyzer. Ground and local air/bush moisture level changes, like after rain or such, will af
Hi Ash, Some info: - SWR curve median will always slowly rise. No action; this has to do with parameters which slowly affect at higher freq. That is rather irrelevant on the lowbands 160-80-40 - Term
Another question might be; how close by is this BC station or any other AM BCB stations? Please consider a HP BC stopfilter 73 Mark, PA5MW Mark, I'm planning to have the termination value adjustment
Good point Rick. But that zoomes-out the topic. What priorities does Ash' beverage need to cover, like: lowering local noise (groundwave) lowering incoming skywave noise; QRN and/or QRM the need to '
Additional question; with respect to the BOG/Beverage backlobe upwards angle, does the test-generator antenna need to be lifted from local groundlevel by say 2- 10m? Or can this test be done just as
Due to this years extended summer season &high temperatures, many of the (RX)antenna fields are 'not available yet'. 73 Mark PA5MW Many thanks for all the replies and comments, some on here, and some