Digital modes are the future. It will give those hams who have limited real estate and monetary resources to enjoy the topband. << Mike Digital modes are not new and there are several ways to enjoy
HI Larry Nice to hear from you. Congratulations!. Yes Gary is doing a great job with the preamps, huge improvements . I am preparing some equipment's to PT0S DX expedition and George always comment a
Differentiating operating awards? If you are talking DXCC it has been differentiated for years. SSB award, CW award, DIGITAL/RTTY award and MIXED. I know this because I have them all hanging on my w
Welcome to the digital age... What with hundreds of so-called "friends" on venues like facebook.com, this was surely the next step, & merely reflects a growing (deplorable) trend... Eddy, sure not,
Yes we do, just remember the signal George AA7JV from Mellish reef, Willis or Chesterfield. BUT the antenna near the water in the beach does not work so well, the antenna must be in the water as you
Herb A good way to test a TX antenna is to listen to one of the many SDR receivers available on line << We can use the reverse beacon network. RBN, select DX spot HF > 160m http://www.reversebeacon.n
Hi Rick I had full size 160M dipoles (not inverted vees) up at 9 meters and 18 meters for about six months and did a lot of A/B'ing of them. On receive, there was never any difference in audible S/N
Jim high RDF number with significant lobes off the back that are only 10 dB down from the main signal << There is no high RDF with lobes 10 db down, or one or another, not both at the same time. Rega
Carl Now we just went through the deepest solar min in our lifetimes - which also means we were hit with more GCRs than ever in our recorded history (about 19% more than anything we've seen in the pa
Jim Not always, polarization plays a lot on 160m, in special W-E E-W. Sometimes a signal from Africa dive on the QSB and disappear from the Vertical WF and switching to the horizontal WF the signal i
Jim Is your WF horizontal antenna much higher than the vertical? < Yes, the HWF boom is at 116ft and the VWF=BWF as I used to call it , the boon is at 50ft Both antennas has RDF of 11.5 db, the HWF h
Doug Nope, Nope. I am a firm believer in one-way propagation on 160m, having witnessed it many times. Can we agree, that we disagree.? When the signal is going up the polarization does not matter bec
Here some interesting paper about LF MF polarization http://www.ann-geophys.net/22/1705/2004/angeo-22-1705-2004.pdf This paper, High-latitude propagation studies using a meridional chain of LF/MF/HF
Gary You have a god point, if we don't care they don't mind. I think we cc download the RBN file with all callers on the DX window during the contest, it is available in .csv, easy to filter using ex
Art A DL wondered how many DX can coexist in 5kHz. Not many. << I think 5 KHz can hold a lot of DX , CW and 100 Hz BW can do miracles, however just one local CQ machine gun calling CQ stopping only 2
information? Yes, there is a great solution, I'm using it for almost 10 years. The issue with capacitors in 160m is the dielectric an most capacitors get hot and change the capacitance. I used 19 x 6
Hi Top-banders I just got this skype IM for Ilian T6LG and I would like to congratulate Ilian for his dedication on all aspects of Ham radio. hi Jose [12:02:50 PM] Ilian: My log is already uploaded o
Hi Arunas I just wondering what is the reason to separate each of CAT5 pairs? <<< The main problem in high noise environment is common mode noise, The unused wires does not help to eliminate common m
If you plan to use the antenna on 160m you'll need 73 material. 43 works 3.8 up. Regards JC N4IS I wasn't going to use a binocular core, Tim - I was going to use the Amidon FT-140-43 OR the FT-140-77
Well, Jim, here is what N4IS stated (bolded words my emphasis) - Hi guys Jim is 100% right, balancing both ends is a MUST. But there is more. I would like to share what happened few month ago with a