gotcha that helps thanks fore the info <smiles> fore example on the software adh controler would I inter 790 then press the tune button or is there a certain way of intering the freq in soft adh controler? Hanks Hank ----- Original Message ----- From: "netnovel2005" <[email protected]> To: <[email protected]> Sent: Wednesday, January 27, 2010 6:18 PM Subject: [soft_radio] Re: LD-1 Discussion on Garage-shoppe.com Blog
> > > Hello, > > I answered to Mr. hank by personal mail. > my answer is > Receiving frequency range is 2.5 to 30MHz. > This fearture is written in my site. > > my soft66ADI can not receive under 2.5MHz. > because there is limitation of ICS512 multiplier. > Minimum output frequency is 5MHz on datasheet. > But there is individual difference on ICS512M. > some ICS512M can output under 5MHz. > Therefore control soft can tune from 0.5MHz. > But under 2.5MHz is No guarantee. > > regards, > > JA7TDO<http://zao.jp/radio/> > > > --- In [email protected], Dave - WB6DHW <brain...@...> wrote: >> >> Hank: >> I only had a chance to take a quick look at the schematic. It appears >> that there is a thru position in the bandpass circuit that selects >> bandpass filter. You should be able to use that below 2.1 MHz, but >> could see harmonic responses. You could also modify on of the other >> filters to cover below 2.1 MHz. The frequency control is an AD9834, >> which should go down to audio without problem. >> >> Dave - WB6DHW >> <http://wb6dhw.com> >> >> hank smith wrote: >> > Hello I ordered mine all ready built >> > he is not answering my questions either >> > I don't think this can even go below 2.1 mhz either >> > is your kis all ready built? >> > I am visually impaired and am unable to sodder at this point. am >> > reading >> > articles on how to sodder but at this point don't know how to yet >> > Hank >> > ----- Original Message ----- >> > From: "larryw8er" <robi...@...> >> > To: <[email protected]> >> > Sent: Monday, January 25, 2010 9:12 PM >> > Subject: [soft_radio] Re: LD-1 Discussion on Garage-shoppe.com Blog >> > >> > >> > >> >> Peter ... The Soft66AD is assembled and shipped at $122. The problems >> >> are >> >> with support and documentation and drivers/software. My experience is >> >> that >> >> emails are often not answered and telephone contact is not possible >> >> and >> >> supplied drivers/software are weak, at best, for WinRad, not supplied. >> >> As >> >> for documentation, go to his website. The LD-1 appears to be a bargain >> >> at >> >> $200. I received mine today and will put it through it's paces >> >> tomorrow. >> >> May order a second one while still at $150. >> >> >> >> --- In [email protected], "ni9n" <pegood@> wrote: >> >> >> >>> Hank, the price goes up to $200 in about a week and a half. I think >> >>> it's >> >>> worth that. I see that the Soft66AD costs $125, plus shipping from >> >>> Japan, but you have to put it together yourself. If you do that, I >> >>> would >> >>> advise you to use better surface-mount techniques than the ones >> >>> recommended on the Soft66 website. Never, ever use a soldering iron. >> >>> I >> >>> like to use an electric griddle as a hot plate, along with a Weller >> >>> butane soldering iron with a hot air blower tip. Monitor the >> >>> temperature >> >>> using an IR thermometer from Harbor Freight tools. I've described >> >>> some >> >>> techniques that work well on my blog, but nothing beats using a >> >>> solder >> >>> stencil. >> >>> >> >>> The LD-1 works quite well down to about 1 KHz, and does work at lower >> >>> frequencies but with some spurious responses due to the low LO >> >>> frequency. >> >>> That could be fixed by changing the filter bands, and I might >> >>> consider >> >>> offering that as an option. I can't quite tell from the Soft66AD >> >>> docs >> >>> exactly what the frequency coverage is, he seems to make some claims >> >>> that >> >>> don't add up, but his english makes it hard to tell. >> >>> >> >>> I do use the AD9834, the same DDS chip that he does, but I actually >> >>> use >> >>> two of them. Both are programmed for the same frequency, but one is >> >>> programmed for a 90 degree phase shift relative to the other. Start >> >>> them >> >>> at the same time, and you have an I / Q LO. Also, I've found a >> >>> simple >> >>> technique to greatly reduce the spurs from the DDS chips. I'm >> >>> keeping it >> >>> close to the vest, but it works. >> >>> >> >>> Modes like DRM are a function of the SDR host software you run on >> >>> your >> >>> PC. Rocky does not do DRM, but Winrad does. Whatever radio you >> >>> decide >> >>> to use, take a look at Winrad. >> >>> >> >>> >> >>> --- In [email protected], "hank smith" <hanksmith5@> wrote: >> >>> >> >>>> will my softadh cover these same frequencies? >> >>>> also what is the normal price after your introduction? >> >>>> Hank >> >>>> ----- Original Message ----- >> >>>> From: "ni9n" <pegood@> >> >>>> To: <[email protected]> >> >>>> Sent: Saturday, January 23, 2010 6:11 PM >> >>>> Subject: [soft_radio] LD-1 Discussion on Garage-shoppe.com Blog >> >>>> >> >>>> >> >>>> >> >>>>> Thanks to those who have placed orders for or expressed interest in >> >>>>> the >> >>>>> LD-1 software defined receiver, which I am now shipping. Two of >> >>>>> the >> >>>>> first >> >>>>> lot of five are still available (I will be assembling them in the >> >>>>> morning, >> >>>>> so they don't show up as in stock yet) and I have just ordered >> >>>>> parts >> >>>>> for >> >>>>> the second lot. Those should be ready to ship later in the week. >> >>>>> >> >>>>> To recap the LD-1's features (which are fully described at >> >>>>> www.lazydogengineering.com/LD1home.htm ) it is a soundcard-based >> >>>>> SDR >> >>>>> like >> >>>>> the Softrock-40 and similar SDR's, but with a dual-DDS local >> >>>>> oscillator >> >>>>> using two Analog Devices AD9834 DDS chips. It will cover the >> >>>>> entire >> >>>>> 530 >> >>>>> kHz to 30+ MHz range. On the low end it will probably work below >> >>>>> 530 >> >>>>> kHz, >> >>>>> but I haven't tested it there. It may go as high as 37 MHz, but I >> >>>>> haven't >> >>>>> tried that, eiter. It is USB controlled, either from Winrad or >> >>>>> from >> >>>>> its >> >>>>> own stand-alone application. While I haven't done any formal >> >>>>> performance >> >>>>> measurements, it seems very comparable to my FT-817. Except, of >> >>>>> course, >> >>>>> being an SDR it runs rings around any conventional receiver when it >> >>>>> comes >> >>>>> to operator convenience and agility. >> >>>>> >> >>>>> I don't want to distract from the main topic of this discussion >> >>>>> group, so >> >>>>> I would like to encourage anyone who is interested in the LD-1, or >> >>>>> DIY >> >>>>> surface-mount projects, small-scale product developement, ham radio >> >>>>> entrepreneurship, etc. to visit my blog at www.garage-shoppe.com. >> >>>>> >> >>>>> >> >>>>> >> >>>>> ------------------------------------ >> >>>>> >> >>>>> Yahoo! Groups Links >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> >> >> >> >> >> ------------------------------------ >> >> >> >> Yahoo! Groups Links >> >> >> >> >> >> >> >> >> > >> > >> > >> > >> > > > > > ------------------------------------ > > Yahoo! Groups Links > > >
