[MRCA] ARC R-13B Receiver

[Mark K3MSB]

Hi Everyone

Lots of people responded to my email -- Thank you!.    I think I have my
questions answered, but I am still unclear on some things.

This is the radio I have:   R-13B aka R-445 AN/ARN-30.

[image: image.png]

Several people sent me the manual ARN-30 TM_11-5826-215 and I thank you.
However, this manual is for the  AN/ARN-30.  The D variant is different
from my model.

For the D model:
Type of modulation:  AM
Input Impedance  50 ohms
Audio output:  300 ohms

>From M. W. Tauson's document I have the following for the AN/ARN-30 (no
suffix for the model specified)

J-lO3 ( ) To Equipment Rack *25
1 Gnd
2 Rec Audio
3 Gain Ctl
4 Tuning Meter
5 Navig Audio
6 +LV Source In
7 +HV Out

So, I know the pinout to the MT-65 rack.   Is the D model info (impedances)
the same for my model ?

Thanks!

Mark K3MSB





On Thu, Feb 19, 2026 at 5:31 PM Mark K3MSB <mark.k3msb at gmail.com> wrote:

> I recently purchased some AN/ARC-5 equipment and that included an R-13B
> receiver, C-22A control unit,  and interconnecting cable.
>
> I'v searched for R-13B manual, receiver, variants thereof, and come up
> with nothing.  Ditto for the control box.
>
> Does anyone have manuals, or perhaps they can give me the secret search
> words.....
>
> 73 Mark K3MSB
>
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