[Milsurplus] ME-398/U ???

[Sheldon Daitch]

I beleive Joe is correct.  Also, considering that the two 
operational impedances are 135 and 600 ohms, that would 
nearly confirm it as some type of frequency selective 
voltmeter designed for FDM telephone equipment.

73
Sheldon
WA4MZZ



Joe LeKostaj wrote:
> 
> Barry,
> 
> Sounds like a signal line tester for checking (perhaps) FDM telephone
> lines. The description sounds very similar to a ME-71A/FCC that I've
> got. It might be usable as a bare-bones LF/VLF receiver if the
> sensitivity and IF bandwidth are adequate.
> 
> 73,
> Joe K9LY
> 
> At 5:24 PM -0400 9/24/02, Barry Hauser wrote:
> >Anybody know anything about an ME-398/U?
> >
> >Some clues:  First, it's a meter, not a Messerschmidt, gray and a bit
> >smaller than a breadbox.  Made by Cosmos, the PTO manufacturer and contains
> >a PTO with gear drive and a 3-digit Veeder-Root counter.  The range is
> >limited by a cam affair so that it reads from zero nominal to about 485 kHz.
> >
> >There's a big db/voltmeter on the left side, filter switch with 3
> >positions -- 250 Hz, 2500 Hz and "Flat".  Has an attentuator switch with
> >many positions marked in db and volts and one cal. position, fine tuning and
> >one or two other controls.
> >
> >Input is in the form of 3 banana jacks -- case ground jack strapped to
> >ground jack and hot. Near the meter side there's a switch for 135 and 600
> >ohms and "calibrate"..
> >
> >That's about it.
> >
> >Anybody know?  Any theories?
> >
> >Barry
> >
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