[Milsurplus] "Vegetation Antenna"

[Brian Harrison]

GM all,

Here is a picture of the metal nose and base of an example ADSID that I believe came from the William Howard Intelligence Museum along with some WW2 Japanese radio items.

Not only were these dropped along the trail, these or similar were dropped or installed around large U.S. bases late in the war. In early fall 1972 I was part of a 4.2” (106mm) heavy mortar unit providing flare and fire support for the Long Binh perimeter (biggest supply base in RVN). We had pre-plotted locations of seismic sensors around the base and would sometimes get calls at night by VHF radio or phone of "movement at sensor so and so" and permission to fire. We did so until the voice at the other end announced “sensor destroyed”… We typically did not go outside the wire and investigate (I only did so once in 2 months with this unit).

best,
brian
kn4r



> On Dec 26, 2022, at 8:14 PM, KD7JYK DM09 <kd7jyk at earthlink.net> wrote:
> 
> On 12/26/2022 16:23, Hubert Miller wrote:
>> I can’t locate the emails right now, but  there was recently some discussion of ‘vegetation – looking antennas’.
>> Here’s a scan from an article in ‘Vietnam’ magazine, December 2018.
> 
> Odd that I don't recall the conversation.
> 
> I have several such antennas, some guts from the sensors, and some photos from Sandia when they were developed, both the seismic, and acoustic models.
> 
> Kurt
> 
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