[GreenKeys] Normal and Reverse

[Nick England]

The CV-2460 is indeed bass-ackwards from some other military converters and
from the the CV-3510 series that replaced it.
The military did switch from transmitting mark-high to mark-low. at some
point, so maybe the CV-2460 straddled that change..
The manuals for receive converters often threw up their hands and said -
"If teletype printer is printing garbled copy, set converter POLARITY
switch to REVERSE"

Cheers,
Nick England K4NYW
www.navy-radio.com


On Sat, Feb 18, 2023 at 2:46 PM W2HX <w2hx at w2hx.com> wrote:

> This issue that Mark K1HF had, really brings to light this issue of normal
> and reverse is a curious one. The MD-522 used with the GRC-106 (iirc) the
> term “normal” means mark low space high. And given this is a USB only radio
> then the space tone would in fact be a higher frequency carrier signal than
> the mark.
>
>
>
> However, curiously, in order for my CV-2460 to interoperate with the
> Saturday rats nest, I need to set it to R/R (reverse transmit/reverse
> receive). So the CV-2460 is either expecting a different “normal” or
> expecting to be used in an LSB environment. Given it is navy equipment, I
> suspect it was not expected to be used in LSB (nick?). Therefore, it might
> appear that the navy had a different opinion of “normal” than the army.
>
>
>
> No idea about any of this, I’m just happy I can get it to work!
>
> 73 Eugene W2HX
>
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