Folks on FT-8 use a 2.5 khz ssb wide RX filter. FT-8 is supposed to be good for 20 db below the noise floor. I assume that means 20 db below the noise floor of the 2.5 khz RX filter ? But a 250 hz cw
<I recently saw a post come across the reflector that referred to FT8 as <junk. If I were to call CW a junk mode or insinuate that it's bad in any <way, shape, or form, I would have a mob of OM with
<I have a couple of 6ms 12V Kilovac relays wired up as a detuning circuit <during RX. One question comes up before implementation regarding flyback <diodes - would they be needed? Seeking opinions on
<Interesting and an explanation why he doesn't respond to my calls from here in NW Europe. I had put it down to poor RX at his end due to high local noise which I guess is part of the reason. <Regard
<Hi gary, <I thought that was the rule.? But I've not dug into it because I don't use the remotes.? So just now I looked and you are 100% right.? Here's what the ARRL web page says from Section 1...
<Nevertheless, I have worked Kanti a couple of times on each of 30, 40 and 80M. The 30M QSOs took place generally around his SR and early evening here, and I have heard him many times in that time fr
<The ONLY positive solution I see is for the ARRL to rewrite Section 9 of the DXCC rules?right now totally remote stations (Rx+Tx) are OK but split Rx and Tx more than 500 meters apart are NOT...does
https://swling.com/blog/2018/02/fcc-authorizes-wireless-power-transmission-experimental-station https://apps.fcc.gov/els/GetAtt.html?id=204036&x=. http://www.texzontechnologies.com/technology Tesla t
companies vast outside plant of poles, HV lines and xfmrs..out of business any time soon. The same outfit has been applying for these experimental licences for years now. Jim VE7RF <I agree about the
<I shunt feed my tower for Topband. Presently using a Comtek 100 bead balun. <After reading K9YC's article on baluns it would seem that a stack of five <N2TK, Tony works good on 160m... aprx 5 k ohms
Plan B would be to use RG-400... but more than 7 turns. If you are going to build a 160M CM choke, you may as well do it right the 1st time. Jim VE7RF Why do you want it resonant? 73 Peter --Origina
<Equally as Tom W8JI found that his dipole at 300?' feet high (to quote Guy K2AV) ?would never beat a commercial-AM-BC-quality vertical and radial field, and only infrequently would equal it?, Mike V
www.arrl.org/news/storm-takes-down-amateur-radio-contest-club-towers-in-northern-europe think the rotating 300 ft tower that came crashing down in a windstorm, was caused by a failure of the auto mec
<The MFJ259 is a fine box but when you get to 80m with anything near a BC it's going to be problems.? In fact I discovered the hard way that even up on 20m the box can read funky if your antenna is b
<My AA-55 is a different model than yours, but the instructions have curious warning about not putting too much force on the UHF connector. I am thinking that RE realizes they have a weak mechanical
and TX, which is legit per the rules. But using a remote station for RX only is a big no-no ! That makes no sense what so ever. further pointless. Somebody needs to ..get with the program, and make s
<After operating 7 straight nights on 160, my ears were ready for a break. We <switched to FT8 for about 5 hours, using the regular QSO mode (not <hound-and-fox). With N1DG operating, we made about 1
station. I use the 20 mhz WWV to align the TCXOs in all 4 of my yaesu xcvrs. I would be dead in the water without them. BTW, if you do use WWV to align the TCXO in your xcvr, any brand, use the highe
<Several options: (1) CHU is still operating on several HF frequencies that reasonably cover North America; (2) In the U.S., AM broadcast stations are required to maintain +/- 20 Hz carrier stability