On Sat, 06 Sep 2003 13:29:08 +0000, John wrote:
1. Does the fact that this set has double conversion make it more
sensitive or selective ? It seems to be no better than my S-40B ? 2.The
volume and sensitivity controls must be at almost set to maximum to
receive anything on 80 meters or higher. Is this normal ? Any
suggestions on what to check ?
3.Will this set be more sensitive on a di-pole antenna ? I only have a
vertical connected to the co-ax connection . 4.The selectivity controls
has two capacitors about 1.25" long and3/8" thick with red, red, orange,
white, blue bands. What is value ?
I have replaced all caps, bad resisters and none of the tubes have
shorts. The alignments seems fairly decent on all bands, but I have not
attempted to adjust. (Don't trust myself to do this...).
Any and all help is appreciated.
Thanks,
John
The double conversion reduces image response compared to
the the S-40. This becomes a problem above 10-20 MHz
depending on the Q of the RF coils and how well the radio
is aligned.
The 5 selectivity choices on the S-76 would help receive
weak signals.
The S-40 is a much simpler radio and easier to align.
The S-7 alignment procedure calls for a 50 KHz signal
which is not provided by most signal generators.
The large S-meter on the S-76 provides a multimedia
experience which has no counterpart in the S40.
--
Chuck Forsberg
www.omen.com 503-614-0430
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 FAX 629-0665