[Collins] S-Line questions

[Glen Zook]

Usually detuning the preselector does cut down on the
heterodyne oscillator output from the receiver to the
transmitter.  This can affect the power output from
the transmitter.

On my D-104 I installed a DPDT switch that allows me
to switch between just the microphone element and the
amplifier.  Both my 32S-1 and 32S-3 are "much" happier
just using the element alone.  My Heathkit SB-Line
equipment (SB-401, SB-101, and SB-110A) are "much"
happier with the amplifier!

The antenna that you are describing is often called a
"parallel" dipole or a "fan" dipole.  They work fine. 
Remember that you don't need a 15 meter section if you
have a 40 meter section.  15 meters works fine as a
3/2 wavelength dipole from the 40 meter section. 
Years ago, when I was living in a rented house for 6
months, I used a "parallel" dipole and it worked fine.
 Have also built a couple to use on Field Day and they
worked fine as well.

Using an ohmmeter doesn't give the impedance of the
microphone element as I recall.

As for the knobs, you are on your own!

Glen, K9STH


--- Jim Isbell <millenniumfalcon@cableone.net> wrote:

When tuning in a station on the 75S-1,  I sometimes
find that the station is more readable by tuning the
preselector off to one side or the other of the peak
to eliminate the background noise.  does it affect the
transmit adversely?

Can I just bypass the amplifier and use the stock
D-104 element straight into the 32S-1?  Is an Ohmmeter
reading on a mike element a fair estimation of its
impedance??

Has anyone any experience with using multiple dipoles
from a single feed point on the theory that the non
resonant dipoles will have a high impedance so not
affect the resonant dipole's 50 ohm impedance.


=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

__________________________________
Do you Yahoo!?
Exclusive Video Premiere - Britney Spears
http://launch.yahoo.com/promos/britneyspears/