[Milsurplus] Re: RBF-3 (David Stinson)

[Patrick Jankowiak]

It may be that the transmitter was not crystal controlled, or 
that the telemtry was wideband. If it was used for receiving 
underwater sound, the frequency bandwidth of those 'sounds' is 
very wide, much wider than the humanly audible signal.

PJ

> From: "Ray Fantini" <RAFANTINI at salisbury.edu>
> Subject: [Milsurplus] RBF-3
> 
> I would like to think that I have some small understanding of vintage
> mill equipment but every now and then there is something that I have no
> idea what it is. On the "bay" item number # 6536851054 is a RBF-3
> receiver, it appears to tune between 70 to 90 MHz and is FM, with a
> front de-emphasis control and an apparent bandwidth of 75Khz. would
> think that it may be a fax receiver or maybe some early multiplex wide
> band receiver for several channels at once?
> Ray Fantini KA3EKH