FIRST? SINGLE SIDEBAND

[Tom Clarke]

I know what you mean about the herks shedding a wire now and then.  We Navy
type don't do assault landings very often, but the antennas let go now and
then anyway!

We also have an E-6 (707-320) and it has 3 probes and a couple of other
e-field antennas.  Also a 20,000 + foot trailing wire (as opposed to
"training wire" in my previous post!).  No roof top long wires though.  The
LTWA breaks now and then but we normally deploy it over the ocean.

73 de Tom/W4OKW
Pax River Flight Test
----- Original Message -----
From: "Scott Johnson" <scottjohnson1 at cox.net>
To: "Tom Clarke" <fclarke at EROLS.COM>; <BOATANCHORS at LISTSERV.TEMPE.GOV>
Sent: Wednesday, January 14, 2004 10:26 PM
Subject: Re: Re: FIRST? SINGLE SIDEBAND


> ------the EC, RC and some KC-135 aircraft do have longwires, the probes do
> not load below about 6.5 MHz.  The KC-135 is capable of .91 mach, and we
> don't seem to have much trouble with the longwire, never experienced a
> failure in my 17 years on 135's, although C-130s sometimes break longwires
> on assault landings. Hard to believe, but the only problem with longwires
on
> KC-135's is a resonance at pattern speeds that makes a racket in the
> vicinity of the galley (where the coupler and mast are situated).
>
> Scott
> ----- Original Message -----
> From: "Tom Clarke" <fclarke at EROLS.COM>
> To: <BOATANCHORS at LISTSERV.TEMPE.GOV>
> Sent: Wednesday, January 14, 2004 8:01 PM
> Subject: Re: FIRST? SINGLE SIDEBAND
>
>
> > Training wire antennas are fairly rare today, generally on some military
> > aircraft such as the E-6 (VLF) and E-2 Hawkeye.  Fixed wires are used on
> > slower, prop type aircraft, where increased drag is not a consideration.
> >
> > HF antennas on jet aircraft are often probe type or slot types that do
not
> > cause additional drag.  Wires are not practical.  If you see and old 707
> > check the top of the vertical stab and you will see a probe extending
> > forward, this is an HF antenna.
> >
> > 73 de Tom/W4OKW
> > --------------------------snip-------------------------
> >
> > Where do they keep the antenna on airplanes working HF?  Is it trailed
out
> > the back of the aircraft.
> >
> > I never see an HF antenna on commercial jets parked on airport tarmacks.
> >
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