[Milsurplus] Re: DF-ing & Earhardt/Noonan

[Al Klase]

Hue,

Interesting info about the 7500KC DF.  At that freq. you 
could have a really strong skywave hitting you nearly 
vertically when you were within 100 miles or so of the TX.
Hence no null.

Al




Hue Miller wrote:

> The loop thing was apparently similar to the Navy's early DU,
> the one without any -suffix number. This one tuned up to about
> 8 Mcs. and was fully manual for sense operation. Supposedly
> the ship was to transmit on 7500 and AE & FN would home
> on that. But before they left Lae, New Guinea, they tried it
> out on the airfield's HF signal and could not get it to work,
> no sense information. Then, when approaching Howland, same
> thing. She radio'd, "We have you but cannot get a null", or
> words close to that. Seems like not very good preparation, 
> maybe. You like to have a   strong plan B, and then a plan
> C, and so on.
> Hue



-- 
Al Klase - N3FRQ
skywaves@bw.webex.net
Flemington, NJ 08822
Web Page:  http://www.webex.net/~skywaves/home.htm