Re: intro and questions
- View SourceThank you Alan, not only for taking the time to respond to my questions, but also for the time and effort to collect and present such an overwhelming amount information !!
I am now beginning to think I might be getting in over my head, but one thing is for sure.
I will not be bored for some time to come !!
Another question. I saw that a second receiver was required to adjust the transmit side. How absolute is that?
As I would then need to also purchase the rx only model or some other cheap rcvr.
Again, trying to plan within a very, very, limited budget.
Thanks again !
donfrasher at yahoo dot com
--- In firstname.lastname@example.org, "Alan" <alan4alan@...> wrote:
> ----- Original Message -----
> Subject: [softrock40] intro and questions
> > for rx and tx of digi modes, will one sound card work? or will it need 2?
> For one card:-
> Some digimodes like WSPR, Multi-PSK have SDR transceive built-in.
> Any digimode may be used RX only.
> The usual way to work RX/TX for non-SDR software is to use one card and VAC (25 USD)
> > Also, will a straight key work the softrock ? or paddle only?
> A straight key may be used. I'm not a CW operator but I understand the digital delay of SDR can be a problem for fast operators. But
> this can be largely overcome.
> > Thanks in advance for any tips and info to what must be rather redundant questions on this reflector, however my searching the
> > files and past messages turned up a lot of info, but not really the basic, beginner, " SDR for Dummies" stuff I need !
> SDR is a big subject, I've got some pages here <https://sites.google.com/site/g4zfqradio/home> where I've tried to cover most
> 73 Alan G4ZFQ
> > Also, keeping in mind my current budget, If any one just happens to have such a thing as an "extra" rxtx covering 40m ,
- View Source
----- Original Message -----
Subject: [softrock40] Re: intro and questions
> I am now beginning to think I might be getting in over my head, but one thing is for sure.
> I will not be bored for some time to come !!
For a complete beginner there can be a lot to learn but many get there without too many problems.
> Another question. I saw that a second receiver was required to adjust the transmit side. How absolute is that?
I should say that anyone operating a transmitter should be able to monitor his transmissions.
Home built, even more so.
SDR, well, even even more so. SDRs do not necessarily transmit on the RX frequency, or may transmit on two frequencies. And the
image really needs to be adjusted to be at a low level.
But quite a few seem to do it by trial and error. Maybe one watt will not get the authorities smashing your door down but it can
still cause a lot of QRM.
73 Alan G4ZFQ
> As I would then need to also purchase the rx only model or some other cheap rcvr.
> Again, trying to plan within a very, very, limited budget.