LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #25   Report Post  
Old July 17th 03, 03:31 PM
Scott Dorsey
 
Posts: n/a
Default

Jim Hampton wrote:
Sheesh! 1 GHz with a 10 bit binary counter. Only $350.00 each in quantities
of 1000. Someone care to loan me over 1/3 of a million? Seriously,
however, there are affordable AMD devices but they appear to be in the 50
MHz to under 200 MHz range.


I could do that. Generate a 50-80 Mhz sine wave, then put it into a mixer
with a 50 Hz crystal oscillator and turn it into a DC-30 Mhz signal. I
think I could even get a brickwall high pass at 30 MHz so the whole thing
would be broadband with no tuning.

Of course, you'd lose some stability in the process from those extra
stages, but probably not enough to be a big issue.

Oh, and for 10M FM, of course, I could modulate the local oscillator.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."


 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Supporting theory that Antennas "Match" to 377 Ohms (Free space) Dr. Slick Antenna 183 October 2nd 20 10:44 AM
HAMS in or near EVERGREEN, COLORADO SecondHandMarklin.com Antenna 0 January 6th 04 03:19 AM
Reflection Delay is it real??? Peter O. Brackett Antenna 7 September 20th 03 11:55 AM
50 Ohms "Real Resistive" impedance a Misnomer? Dr. Slick Antenna 255 July 29th 03 11:24 PM


All times are GMT +1. The time now is 05:27 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017