Design question, from just a hobbyist
- From: "Dave" <db5151@xxxxxxxxxxx>
- Date: Fri, 2 Nov 2007 15:59:27 -0500
I am wanting to take my (homebrew) tunable, active antenna for shortwave
reception to the next level, and make it independant of an external antenna.
To do this I have installed two 43" whips which I would like to have working
in tandem. They are spaced approx. 5.5 inches apart, and capable of being
spread to any angle through hinge-joints (sorry, I don't know what that is
called.) Question is, just for plain-vanilla operation, can I attach both
of their leads to my RF input and expect some sort of useful result? I am
planning on using an impedance-matching setup such as was described in the
July 2001 QST article about the Miracle Whip antenna (The Miracle Whip: A
Multiband QRP Antenna, PP 32-35) . I am wondering if I need something like
an NE/SA602 or 612 mixer to condition the antenna inputs before feeding them
to my RF amplification stages, in case the two signals are out of phase with
each other (a distinct probability, I suspect.)
If anyone would care to comment, I'm all ears.
Thanks for any input.
Dave
.
- Follow-Ups:
- Re: Design question, from just a hobbyist
- From: Eeyore
- Re: Design question, from just a hobbyist
- Prev by Date: Re: Sen. Harry Reid, NV: Wildfires caused by global warming
- Next by Date: low power water solenoid valve
- Previous by thread: Re: buy cheap shoes nz oz ozwomen R2 R3 R4 RIFT TN TNwomen www.cheapest-sell.cn
- Next by thread: Re: Design question, from just a hobbyist
- Index(es):
Relevant Pages
|
