Wolf and Clemens, thanks for your answers. So I can still have hope, despite the negative results so far.... :-) I understand that I need a lot of wire outside, in a form of a loop, preferably tuned
On 1/27/2010 12:52 AM, Stefan Schäfer wrote: Hi Alberto, Tnx for reply. Let us know about your loop preamp if it is finished. Surely Stefan, I will. On this subject, does anybody have a first ha
Mal, a "preferred mode" is actually any mode that works in the current circumstances. Please choose your words more carefully, Alberto is one of the few gentlemen on this planet that has given us wel
Self-training = learning something, by your own endeavours Radio Communications = the whole gamut of science & engineering involved in generating, radiating, receiving and detecting signals at radio
Checked for a couple of hours on dial 510 kHz, but no decodes... Then switched to a visual examination of the band segment, and saw Andy's WSPR signal (which did decode) and the two QRSS signals of D
I just study some interesting articles about low noise transistors and OPAs for amplifier applications and found that article very interesting: http://www.janascard.cz/PDF/Ultra%20low%20noise%20ampli
have a look at http://www.nist.gov/public_affairs/techbeat/tb2010_0126.htm#antenna . They claim antennas with 95% efficiency and dimensions of only 2% of the wavelength or less. But so only at VHF (3
I agree with Mal its very difficult to radiate a signal on 137kHz, let alone 9kHz! That's why it is interesting... were it easy, then it would be for appliance operators... 73 Alberto I2PHD
Thanks for all the responses on this. Some decent reasons have been given to leave things just as they are, so I'm OK with that. Maybe just a little change could be done...the current size limit for
On 3/5/2010 5:10 PM, M0FMT wrote: Also just use Winrad software by Alberto I2PHD ...... http://www.winrad.org/.. version 1.32 will give you more facilities than the dedicated SAQ RX. Although designe
Thanks to Krzysztof OE1KDA now there is a Polish language User Guide for Argo. You can get it from the Argo page on my Web site http://www.weaksignals.com 73 Alberto I2PHD
On 4/27/2010 12:50 AM, Daniele Tincani wrote: Hi Alberto, thank you very much for clarification. I was misled by the softrock example :-) Anyway, a doubt persists...I read on the frontpanel of the R&
On 4/26/2010 10:59 PM, Daniele Tincani wrote: but I believed that top-rated radio's like Racal, Eddystone, R&S, W-J, etc. distinghished over the others because of their superior construction, even fr
On 4/27/2010 2:25 AM, Daniele Tincani wrote: Hi Alberto, I'm quite familiar with digital signal processing (I work in the embedded SW area for a big manufacturer of telecommunications equipments and
On 5/19/2010 9:44 PM, [email protected] wrote: If it is of some interest, I can try to retrieve some screenshots showing the alpha signal in comparison with some MSK stations between 18KHz and
On 6/2/2010 7:09 PM, Mike.WE0H wrote: OK cool. I will try those and see which one works at my radio bench. I had one version working before but forgot where I found it and what version it was. I reca
Can anyone advise best settings for 10wpm and QRSS3 please? I see that you selected "BandPass" and that you placed the filter limits just across the CW signal. But unless you de-select the PassThru
On 7/4/2010 10:47 AM, Lubos OK2BVG wrote: Bingo, transmitter SAQ on the 17.2kHz is ON! Yes, nice reception in JN45sl, using just the sound card as receiver connected to th emini-whip of Roelof Bakker
