The LF and MF ARC-5 Transmitters

[Ed Sharpe]

Ok Fellow luggers of glowing weighty ship steadier
here it is!!

 our ,8 to 1,9 meg bc band arc 5 is a

 t-16/arc5
28 volts dc
NXsa32848    354   cby

it is nice used to have the cover plate over the tubes.... some one ripped
it off...
so much for all radio people being  good!

unit is crinkle black... yellow writing on the back is :

ARC #9316
0.8 - 1.3 MC
aircraft radio corporation
1-44                                   then over to side saus released
1-44

has an odd connector on the front... not used to it but has a screw on arc
5 yellow numbered cover......

Does anyone have an xtra tube cover for the finals? let us know!
Even if it is the wrong color we can paint it.

Ed Sharpe Archivist for SMECC


David Stinson wrote:

> Hue Miller wrote:
> >
> > >They were used to "spoof" enemy direction finders by rebroadcasting
> > >BCB stations, to broadcast propaganda messages to limited areas,
> >
> > ---C'mon Dave, doesn't that sound a bit fanciful?
> I can only go by apocryphal documentation and verbal accounts
> I've collected over the years.  The Navy saw to it that
> direct written evidence no longer exists.
>
> >Propaganda messages at 5 watts or so, radiated ???
> About 10 watts radiated from a trailing antenna at 10-12,000
> feet will cover many square miles with a useable signal-
> perfectly fine to broadcast to a city or an island.
>
> > Or to similute broadcast station beacons with
> > a radiated power miniscule compared to the field strength
> > of broadcast stations?
> BCB stations temporarily leaving the air was a common
> and common-sense part of black-out procedure.
> Moreover, a 10-watt signal a mile ahead at night
> is going to be stronger then a 10,000 watt signal
> 50 miles to the left, which was the idea.
> Remember that at this time, the only effective radar for this
> situation was on the ground and belonged to the allies, who
> could direct the "spoofer" aircraft to stay ahead of the
> enemy formation.
>
> Here's an important note:  While I have two verbal accounts
> from operators about why the units were acquired
> and other apocryphal evidence, I have -no- evidence
> that this system ever worked as intended or when/where
> it might have been used.  My account is simply
> "the best evidence" available at this time.  Any new and/or
> contradictory evidence will be welcome
> and incorporated as I find it.
>
> > Fact is, in a war theatre far from populated areas,
> > ANY frequency could be used...
> I have found no evidence for military use of 550-1500 KC
> for any type of communications other then broadcast-related
> transmissions.  I find no evidence of either allied or enemy
> aircraft or vehicle equipped to use 550-1500 KC for
> point-to-point communications, nor are there any such listings
> in still-extant radio operator's log books that I've read
> (have two new ones coming so we'll see).
> I can just imagine what General Sarnoff of RCA would have
> had to say to congress if such a thing were contemplated.
> These facts would have made the T-16 (800-1300 KC) useless
> and unlikely to have entered full production, which it did.
>
> The T-15 (500-800KC) could communicate with ships at sea
> and coast stations on 500 KC, but would have been useless
> for airborne LF communication on the "radio range" system
> since that covered 200-400 KC.  Also, this type communications
> was a direct function of the Liaison radio sets.  If the T-15
> were intended for this function or to "back-up" the
> Liaison set, why design it for the wrong frequency range?
>
> Given these facts the T-15, T-16 and T-17 were clearly designed
> with broadcast-type fuctions in mind, and this jibes with
> the verbal accounts I have.  I would welcome any new evidence,
> as I'd like to settle this issue as much as anyone.
>
> TNX ES 73 OM DE Dave AB5S
> arc5 at ix.netcom.com
>
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