Hello all, I have reached the tx testing stage and following the construction instructions. My system is set up using Tony's d44 connection board for line i/p...
Attached 73 Kees K5BCQ -- Bill Dumke <billd@...> wrote: Kees, Can you send me a link to the errata sheet ? I couldn't find it. Thanks, Bill wa9pwr ... ...
Hi Tony ... thanks for your reply. I'm afraid I don't have equipment that would allow me to measure the receiver sensitivity, all I have is a good multimeter...
Guys, I have been following this list with interest and am about to embark on a first attempt at building a Softrock kit. As a complete beginner, it would be...
... Do you need two sound cards? You need "something" to connect to the Softrock. For RX only the SR connects to the sound card's input. For TX you need to ...
... I also have an old scope too that is worthless as a measurement device. Calibration is off by more than 10X. and all the traces run down hill. You can...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the softrock40 group. File : /I7SWX SDR...
softrock40@yahoogroup...
May 1, 2007 10:18 pm
10948
Thanks Chris ... I'm a great believer in home-brew gear. The kk5na website design looks intersting and I'll probably look into that one as I build up my...
Hi all, After I published my note "Extending SoftRock40, other QSD and Tayloe Detector to HF Multiband Coverage" I worked on another simple project, due to the...
... you ... order ... loss of ... Hi Tom, that's right. BTW average conversion loss of 2T H-Mode Mixer is around -5dB or less. <there is a configuration that...
I have an old handbook that has 4 tubes configured as an h mode mixer to generate DSB. sorry a bit before FETS and switches. fc ... you ... order ... loss of ...
Hi Giancarlo, signal marker is great. Pleasure attenuator to output, exitus mixer-IC. 73 Gerd DM2CDB ... Hi all, After I published my note "Extending...
Brian, Your Dell should be OK for using with Rocky and the other SDR programs. I use a 1.2 Gig Athlon perfect well, but you won't be running a huge amount of...
... mixer to generate DSB. ... Hi Francis, thanks for your note. I have not seen such circuit and it would be interesting to see it. My feeling is that such...
... No it b***dy isn't! ... and take heed of the "not stored" Nor _should_ it be: read Bill's post carefully; ... He asked for a _link_, not a _copy_! ...
... Tell us what sort of "pulse signal" you were expecting and we may be able to tell you whether you should (or more likely, should not) be seeing it. ...
Hello Len .. see below ... ... I had expected to be able to see some form of quadrature output signal from U4, but given my lack of experience, perhaps my...
Hi Gian, Look at page 338 and 339 of the Radio Handbook by Bill Orr. addition fifteen 1959 and you will see the H mode mixer and four phase switch (tubes) used...
So far I've built SR Lite's for 160, 80 and 40 without any problem. However, having just completed the 20m version I appear to have a short to ground somewhere...
... on me! ... quite ... one ... been ... errors (snip...) Tom, since you are receiving "faint transmissions", I am thinking that U4 and U5 are ok and there is...
I had a similar problem with mine. When you wind those tiny cores, it is possible to scratch off the enamel and induce a short. It's almost impossible to...
... addition fifteen 1959 ... used to generate SSB. ... always did a ring or single balanced mixer. I have his app notes. ... new. G3SBI did a good job on this...
... From: tsmithers@... Trevor, I just had problems similar with mine only the resistance went down after it was running for a while. Turned out to be a...
http://www.tech-systems-labs.com/books.htm Hi Gian, go to the link above and down load it for free. frank ... addition fifteen 1959 ... used to generate SSB. ...
Has anyone posted or have processing pictures of the actual coils being assembled - I have seen some indirect references on how to build coils in general but...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the softrock40 group. File : /Mixer.pdf ...
softrock40@yahoogroup...
May 2, 2007 4:11 pm
10968
I am proposing the SOFTROCK RX and RX/TX as a club project and need some presentation material. If you have anything I would appreciate it if I could get a...
Hi all, I am constructing a Softrock TXRX v6,1 kit. The Crystals I have are:- 28.2069 Mhz & 40.5 Mhz The info I have says I should have a 28.224 Mhz for the...
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