[ARC5] AN-Ranges

Rich Post kb8tad at gmail.com
Fri May 4 13:09:20 EDT 2018


Hi Wayne,

According to my info, the last AN range in the United States was in use in
Northway, Alaska until 1974, a long life for a technology that was
state-of-the art in the 1920s, probably due to some difficulties of VHF use
in the mountains.  That may have been an issue in Montana also.  Last
year,  I  restored an RCK, used as the Commerce Department's
"on-the-ground" receiver for monitoring the low range, 3105 and  6210, a
customized variation on the National NC-100 with epicyclic dial.  Great
radio.

Rich KB8TAD

On Fri, May 4, 2018 at 10:59 AM, Robert Eleazer <releazer at earthlink.net>
wrote:

> When I was taking private pilot ground school in the mid-70's we were told
> there was still one AN range operational in the US, out in Montana or
> somewhere.
>
> We learned VOR navigation and a bit about ADF.  I used an ADF exactly
> once, when flying a Cessna 172 between Torrance CA and Santa Maria, CA, in
> 1982, but I just tuned in an AM radio station in Santa Barbara out of
> curiosity and not for navigation.
>
> Some NDB's also carry aviation weather broadcasts, but there are not
> many.
>
> Wayne
> WB5WSV
>
>
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