Re: [softrock40] Re: VFO Softrock... (I just got over the SMT/SDM jitters...)
>Thanks for the link. Actually any of the above would work.There is the rub, when I made the group buy I bought both the 501 and
>But after reading the data sheets the 601 looks like the
>Where is a good place to buy the ICS-601?
the 601 from ICS directly, but I bought several hundred of each and
was able to get a considerable discount. At the time there was a $50
minimum orders but now they are owned by someone else so most likely
the rules have changed.
The 601 has about 1/2 the noise of the 501 but the 501 worked just
fine with the SoftRock. I used a low frequency crystal and was able
to get 80M, 40M, and several shortwave bands out of one crystal by
changing the multiplier setting through jumpers on a header.
Another chip worth looking at is the ICS-307, it's not a LOCO
but programmable synthesizer in one chip for a couple of dollars,
it's output can go from 250KHz to about 160MHz. It uses a high speed
serial port for the frequency programming and a reference crystal or
reference input, it has digital outputs.
I'm at present building up a list of parts to try to do another group
buy, the 501 and the 601 are already on the list.
www.softrockradio.org www.qrpradio.com www.hpsdr.com
"Blessed are the cracked, for they shall let in the light."