[ARC5] AN/ARC-5 on MF 630 Meters

[Christopher Bowne]

I suspect they were used at USAAF  base control towers such as those of the 8th Air Force in England for ground to air comms and perhaps NDB homing.  And of course they were used originally in the large aircraft of the pre-war years which had 14V vs 28V electrical systems.  I have also read about use of aircraft acting as airborne NDBs for homing at rally points for missions.  Not sure what frequencies were used but it would make sense that low frequencies in the range of 200-500 kHz would have been used.  

TM-11-800 discusses how to tune the transmitter to an aircraft trailing wire antenna at low frequencies as well as HF.

At ground stations the 191 was likely powered with the RA-?? (Specific number escapes me) AC mains power supply.  RA-27 maybe….

The TU-26B here in the BC-191F is original to the the transmitter.

I won’t be the first to operate a BC-191 on the 630 meter amateur band.  Mike, WA1JAS in Maine uses one, and he’s well recognized by the slight chirp from it!

73 de Chris AJ1G
Stonington CT.


Sent from my iPhone

> On Mar 17, 2022, at 14:42, Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> 
> I suspect the BC-191  may sometimes have served as an airfield beacon transmitter, but i cannot recall now any evidence i can cite.
> -Hue Miller
> 
> 
> 
> Sent from my Verizon, Samsung Galaxy smartphone
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