LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Report Post  
Old July 19th 06, 08:54 AM posted to rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 1
Default could VFO frequency be below IF ?

hi,

I'm experimenting with my superhet. My IF is 8mhz (cause I have 8 mhz
crystals for IF filter). I first experimented on 40m. VFO was 15mhz. At
design time I'm using 3 meters long wire as an "antenna" (and I'm
sitting in my basement). I heard different european stations (EA5FKX,
RW6XE, UR4GI etc) which are several thousand km-s away. Pretty amazing
for such "antenna"!

So I decided to go for 20m band. I had an option to set my VFO either
to 6mhz or 22mhz. I first went with 6mhz. But for my disappointment I
heard nothing but the band noise.

So I'm confused now - is it because the short "antenna" or am I wrong
thinking that VFO 6mhz + IF 8mhz should give me 14mhz?

any ideas?

 
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
Electromagnetic Radiation N9OGL General 31 March 1st 06 02:42 PM
Electromagnetic Radiation N9OGL Policy 32 March 1st 06 02:42 PM
Channel-based AM tube tuner (was Designs for a single frequency high performance AM-MW receiver?) Jon Noring Shortwave 103 June 30th 04 07:13 PM
MilAir Monitoring from KeyWest - Lots of Comms! GeorgeF Scanner 1 May 13th 04 09:37 PM
North-Central Florida Mil Logs 9/10/2003 & 9/11/2003 GeorgeF Shortwave 0 September 12th 03 03:32 AM


All times are GMT +1. The time now is 10:09 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017