Ham radio, HF propagation, DXCC/WAZ/IOTA, Antarctica
Hi all, Nice morning on 30m with 2 new ones added there, thanks to GI4DOH and KH6OO, resp. n° 191 and 192 on this band. I was actively chasing KH6 on 30m the past couple of weeks simply because this would be, in addition of being a new one, a new zone...
Hi all, All is the title T88TF on 30cw was a lucky one : Good timing (his sunrise), but seen on the cluster that there was some QRM on his frequency because of an European station calling on the same frequency. I was lucky because I didn't have nay short...
Hi all all is in the title. I do remember this QSO very well : His signal was BIG, as was the pile-up. Lucky one for sure, enabling me to get Fernando de Noronha on 7 bands now. Still looking for 160/80m Ronan ---------------------------------------------------------------------------------------------------------------------------------------------------...
Hi all, This is is kind of QSL that I do appreciate receiving : 5H1S from AF-032 arrived today for our 30m QSO. This is a new one and new zone confirmed on 30m, this is cool. But what is even "more" cool is the little hand-written word that Harald wrote...
Hi guys, This is what I call a miracle. I could get H44G on 10m SSB this morning working still barefoot and with a wire beam (the Hexbeam) at 8m from ground....Needless to say this is a WORST case in terms of efficiency on 10m but...!!!!! Before the expedition,...
Update 8th of March afternoon : TIME REMAINING TOTAL QSOs F8AFC Please enter... ...a valid callsign 160 80 40 30 20 17 15 12 10 6 CW SSB DIGI Ronan, F8AFC Update 8th of March morning Well, after missing a extraordinary opening on late evening on 10m,...
Not so bad here with the hexbeam... I could QSO with HK0/HK3JJH on 17m before the zoo (sorry, the pile-up) from NA133 (Serrana bank)... I must have been VERY lucky, hearing afterwards the pile-up going on.... More info here : http://www.5k0t.com/index.html...
Hi all, Good news tonight : After last WE's QSO on 20m, I succeeded in geting them on 40m as well. For once, not so many people were calling, and the guys calling were very respectuous (yes, on 40m !). One proof of that : I passed my call about 10 times...
Export version, 10/12m mod done, VERY slightly used... It arrived 2 days ago in perfect shippign case from a clean French ham. This one will help me a lot on the low bands !!!!!!!!!!!!!!!!!!!!!!!!!! For the moment, I tuned it on 80 and 40m only. With...
Today, thanks to CT3FQ QSL for our 12/10 and 6m QSO's, I got now CT3 confirmed on ALL bands from 80 to 6m, including WARC bands. That's the first time that happens to me, and this will stay as an excellent memory in my DX life of course. Many thanks to...
Hi all, An international team of experienced DXpeditioners will operate from Pulau Layang Layang in the Spratly islands in early March 2009. The callsign will be announced shortly before the operation. More info on : http://www.spratly2009.com/ I've already...
I decided to update the previous block diagram adding: - More "simple" description of the TX/RX relay from Ramsey. - A few LED's that will be helpful when switching ON/OFF such or such block. - updated DPDT block diagram... Blue color wires are HF signals....
By advance, good luck to all, this will make a LOT of noise on the bands !!!!!!!!!!!!!! Start Date: November 12, 2008 End Date: November 26, 2008 Coordinator: ARRL Record ID: 5461 Requisitioned by: Harry T. Flasher Call Sign: AC8G Address: 7425 Barr Circle,...
Hi all, Here is the diagram of the entire HF preamp + filters that I'm putting in place. The RF detection will be done through a RFS-1 kit from RAMSEY (supporting up to 100W). This also could be done by adding a DPDT relay using Tr-Ry signal from the...
Hi all, I've just finished to test the preamplifier (alone) as indicated in a post. Waouh, I'm impressed, everything worked very closely to simulation results !!!!! For all tests, Power supply was a regulated +12V. Total current consumed is 120 mA. 40m...
Hi all, While going on workign on the filter + preamplifier, I wanted to post here the RX antenna I plan to build for 40/80m... This is highly inspired from K6SE flag antenna, but I wanted to make it shorter to see how are impacted the over-all performances....
80m bandpass filter simulation 29µH ---- 68 pF ---- 68 pF ----58 µH ---- 68 pF ---- 68 pF ---- 29 µH 680 pF 680 pF gnd gnd This should look like : Now, the coil fabrication (same method as for the 40m bandpass filter !!!!!!) Once again, exactly 29.00µH...
So here we are, this is a picture of the "test filter" : As you may see, I added 68 pF capacitors in parallel of the 680pF on the 40m filter, this sharpens the bandwidth, while increasing slightly the insertion losses. Corresponding schematics :(measured...
40m bandpass filter simulation (RFSIM99) 8.2µH ------ 68pF ------ 68pF ---------- 16.4µH ---------- 68pF ----------- 68 pF -------------8.2µH 680 pF 680pF gnd gnd A few pictures of the 40m band-pass filter finally adjusted today: Coisl are made from T106-2...
Hi all, Today got a good suprise in the mail box TI9KK !!!!!!!!!!!! All time new one (20m QSO) J37k for our 15m QSO (new one on 15m) KG4WV for our 20/15m QSO's (Guantanamo, new one on 15m).. Thanks to all managers for their good job, and congrats to the...
Hi all, I feel like building a HF preamplifier for the low bands (at least 40 and 80m), in order to increase the signals of the Flag antenna I'm planning to build. The HF transistor( is a simpoe bipolar from NEC (NE46134), and the circuit has been optimized...
Hey, just conclude on a payment for an HF2V directly from the States. A New In Box HF2V from N3HYB, Don. Few pics : I'm looking forward to receiving it !!! I'm already preparing the ground plane (At least 32 radials of 30ft, 10m, each, to start)...It...
Hey, That's a nice news : Tom, the very well known Tom, ZD7X, will be on ZD9X for a few MONTHS (yes, months !) from late-June 2008. I've only got ZD9 on 20m, that will be a good chance to catch him on other bands (I QSO with Tom from St Helena on 20617615612...
MARQ/VK9XWW (CT1BWW), JOHN/VK9XHZ(EA3GHZ),HENRY/VK9XOR (EA5EOR), DINA/VK9XME (EC5BME) will be active from VK9X from the 8th to the 20th of next July. QSL Card via EA4URE direct or Bureau. More info on : http://www.dxciting.com/vk9x/ Personnaly, I never...
The Union de Radioaficionados Españoles, URE, the Spanish Amateur Radio League, is proud to announce a project in East Timor to take place in June 2008.URE's Radiosolidarity Department will organize an Amateur Radio DXpedition, combined with activities...
