[ARC5] HF/MF Mission Speculations (was ARC-39)

[Richard Knoppow]

    I have lost track of this thread so maybe this is irrelevant. 
The band from 200Khz to 400Khz was used for aeronautical 
navigation and communications from the late 1920s until at least 
the 1960s. I have fogotten the standard control tower frequency 
but about 300Khz. Aircraft probably used wire antennas strung 
from tail to some point on the fuselage. Aircraft also had 
rotatable loop antennas for direction finding. I have no idea 
what the military used.
    I remember loaded whips for 160, some worked quite well.
On 5/4/2020 6:42 PM, Hubert Miller wrote:
>
> I recall that ham mobile radios in the 160 meter band used whip 
> antennas down to about 8 foot.
>
> So, I think >16 foot fixed aircraft antenna would "work" on ½ 
> this frequency, say 1000 kHz. I don't know if any fighter or 
> small observation
>
> aircraft had an antenna this short.
>
> Did the PV class planes carry a larger transmitter, a liaison 
> type ?
> BUT, the ham radio antenna had a large in-antenna, high – Q 
> loading coil. With a very short antenna and a low Q shielded 
> load coil, actual
>
> radiated power would be very low.
>
> I have no revelation to share. I am just wondering.
>
> I would not be surprised if these MW command – sets 
> transmitters were never even used.
>
> -Hue Miller
>
>

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL