[Yaesu] Rom Version/Serial Number

[Berndt Josef Wulf]

G'day,

The difference is a change of some fields in the protocol. Most software is 
written for the newer firmware version which generally isn't backwards 
compatible. I didn't experience any instability during the standard operation 
of the rig was concerned.

You can upgrade the microprocessor to a later version. It took me about 20 
minutes to replace the chip. The processor can be purchased from Vertex. Its 
a SMD device and you need a steady hand, small tipped soldering iron, a 
hot-air tool will be a distinct advantage but it can be done without it, and a 
magnifying glass.

I believe of having a spare processor collecting dust somewhere in my shack.

73, Berndt
VK5ABN

On Wednesday 01 August 2007 11:03:24 Robert Pack, NX5M wrote:
> Computer interfacing with my logging software.  Older version is too
> unstable in this case.
>
> ----- Original Message -----
> From: "John Geiger" <aa5jg at lcisp.com>
> To: "Robert Pack, NX5M" <nx5m at txcyber.com>; "Mike" <nf4l at nf4l.com>
> Cc: <Yaesu at contesting.com>
> Sent: Tuesday, July 31, 2007 8:30 PM
> Subject: Re: [Yaesu] Rom Version/Serial Number
>
> > What is the difference between the different ROM versions?  Is one so bad
> > that it makes the radio less than stellar?
> >
> > 73s John AA5JG
> >
> > ----- Original Message -----
> > From: "Robert Pack, NX5M" <nx5m at txcyber.com>
> > To: "Mike" <nf4l at nf4l.com>
> > Cc: <Yaesu at contesting.com>
> > Sent: Wednesday, August 01, 2007 12:54 AM
> > Subject: Re: [Yaesu] Rom Version/Serial Number
> >
> >> Thanks Mike, I was aware of the 1 and 3 keys being held down since I
> >> have two other 990's in the shack.  I guess I should clarify the reason
> >> for the
> >> question.  It is a possible purchase of an extra radio (in this case a
> >
> > 990).
> >
> >> It is all packaged up for shipping and the individual does not want to
> >> unpack it.  This is the reason I was just wondering about the rom id in
> >> relation to the serial number because if I cannot find out any other
> >> way, and the seller is unwilling to unpack it to verify it, I am going
> >> to back out of the possible sale.
> >>
> >> 73,
> >> Bob
> >>
> >> ----- Original Message -----
> >> From: "Mike" <nf4l at nf4l.com>
> >> To: "Robert Pack, NX5M" <nx5m at txcyber.com>
> >> Cc: <Yaesu at contesting.com>
> >> Sent: Tuesday, July 31, 2007 7:20 PM
> >> Subject: Re: [Yaesu] Rom Version/Serial Number
> >>
> >> > Robert Pack, NX5M wrote:
> >> >> Without going into great detail.....can one tell what rom version a
> >> >> 990
> >> >> would have based on the serial number (assuming no upgrade had been
> >> >> done)?
> >> >>
> >> >> Bob
> >> >> _______________________________________________
> >> >> Yaesu mailing list
> >> >> Yaesu at contesting.com
> >> >> http://lists.contesting.com/mailman/listinfo/yaesu
> >> >
> >> > I don't know about the serial number, but you can see the software ROM
> >> > version by  holding  the "1" and "3"
> >> > keypad buttons down at the same time that power is turned on. This
> >> > puts the radio through a self-test and ends by displaying "YAESU" and
> >> > the ROM version. Also known as the Las Vegas display...
> >> > 73, Mike NF4L
> >>
> >> _______________________________________________
> >> Yaesu mailing list
> >> Yaesu at contesting.com
> >> http://lists.contesting.com/mailman/listinfo/yaesu
>
> _______________________________________________
> Yaesu mailing list
> Yaesu at contesting.com
> http://lists.contesting.com/mailman/listinfo/yaesu