Yesterday I logged my first JA for the season, JA6GIJ. I am still on summer antennas with only one Pennant plus a coax loop for RX and a inverted L for TX. Also looking forward to receiving the K3's
Gedas, High speed CW on topband is rarely used and low signals in high levels of QRN favours short QSOs that follow familiar patterns. This makes topband a good place to pick up on CW again. 73 de Bj
I have just installed the second RX in my K3 and start to explore diversity RX using my inverted L TX antenna and a pennant located about 1/4L away. I am sure this is far from an optimal setup, but i
Hi Flam, I have built the W7IUV preamp and used it with pennants with good results. Gain should be around 18dB. Follow the link below; http://w7iuv.com/preamp.jpg 73 de Björn, SM0MDG SE0X ___________
Having a bad performance in the ARRL 160m contest yesterday I decided to check my TX antenna today. I needed to adjust the un-un for a better match resulting in lower SWR so I can run full power. As
Hi Henk and TB'ers Here in SM0 signals in the ARRL 160m contest was vy poor yesterday. I worked less than 10 stations although I could hear a few more, but I guess I drowned in contest QRM. I will be
I am very happy with my top loaded vertical based on the 18 meter Spiderbeam pole. I have a description online, look at http://sm0mdg.com/wordpress and scroll down to until you find the antenna descr
I agree! Being on 59 degrees I was amazed that the band was open all day, just like in JW a few weeks ago. K7RAT was fading in and out all day peaking at 579 and KL7RA was logged just before local no
Even with a fine radio like the K3 and directive RX antennas contest QRM in EU is challenging. On several occasions I had to narrow down the passband to 100 hz to be able to continue running. And eve
Hi Gang, For anyone interested in a preview of the Svalbard Top Band Activity QSL go here: http://sm0mdg.com/blog 73 de Björn, JW/SM0MDG _______________________________________________ Topband mailin
Hi gang, I am replacing my spiderbeam vertical with an aluminium vertical and are looking for information on the mechanical construction of a 18-24 meter tall vertical. I am planning to buy aluminium
Thanks to John W1FV, George AA7JV, Rick N6RK and Rick W0RIC who came back with useful information in private. I'll sum it up here for anyone interested in building a (tall) vertical: I have built a l
Having met Mathias twice I was very saddened when I got the news Sunday night. Mathias was a very kind person and he provided crucial support to the the January 2009 topband activity by OZ1LXJ John a
A few weeks ago I raised my topband inverted L which have an 62 feet vertical section and uses two elevated radials that are bent almost 90 degrees 10 meters out from the base. My location is on the
Hi Tomas and topbanders, I found it interesting to see how Tomas switched in/out the loading wire of the 160 meter vertical. I have also considered this solution to get 80 meter coverage, I wonder if
My QTH is in a very quiet / rural location but I will argue that any loop (or other RX antenna) will improve s/n ratio compared to the TX antenna, especially if it is a vertical. I use a 20ft coax lo
Hi Topbanders, What is the best way to detune a 1/4 wave inverted L? I suspect that it interferes with my pennants that are within 30 meters from the horizontal loding wire. Do I have to detune the e
Hi Eduardo, I have been using this type of coax loop that Pete describes with good results. I believe the key is to place it as far from the TX antenna as possible, and if possible make sure the null
My inverted L has two elevated radials and I see a shift of -30 kHz when its raining. The 4" of snow that fell this week dropped resonance about 5kHz. I am sure frozen ground (less moist) is the reas
Hi Tree and TB'ers, I have been considering a SDR RX just for monitoring the band, but also as a remote second RX. How do you find the performance of the SDR-IQ compared to your K3 or other high end