For single keying line method, you need to go into the Orion TX Menu and
disable the Keying Loop.
Connect Orion Amp Key output to Centurion PTT/VOX as Rick described.
Barry N1EU
On Mon, Mar 30, 2015 at 5:06 AM, Rick - DJ0IP / NJ0IP <Rick@dj0ip.de> wrote:
> Yes!
>
> You are overlooking the fact that the ARB does absolutely nothing except
> enable keying a device (amp) with a different voltage level than the keying
> device (transceiver) can handle AND the amp and Orion do not have
> different voltage levels.
> THERE IS ZERO VALUE IN USING THE ARB!
>
> What smoked? The Centurion or the Orion?
>
> The Orion can also key an amplifier using the traditional single keying
> line
> method.
> It has no problem keying the centurion with a single line.
>
> Simply connect that line to the PTT/VOX jack on the Centurion as shown in
> figure 1-3 on page 1.6.
> This should get it working for SSB. BTW, the CONROL MODE switch of the
> Centurion must be set in the PTT/VOX position for this to work. AND if I
> recall correctly, you also have to go into the menu in the Orion and tell
> it
> to use this mode. See the manual on this.
>
> To work CW, the Centurion manual (paragraph 1-2) describes the procedure
> for
> break in, but it involves using the TX enable keying circuit which I think
> is burned up. So that is not going to work. And the ARB certainly will be
> of no help here!
>
> In fact the ARB is USELESS for newer equipment.
> You only need it for keying very old amps.
>
> Unfortunately Ameritron/MFJ hypes the value of the ARB far beyond reality.
> It has no means of addressing keying timing issues, which older devices
> also
> have.
> So in reality, in cases where it is needed, it only handles half of the
> job.
>
> Of course the best solution is to repair what has burned up.
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt am Main)
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of mcelmer1
> Sent: Monday, March 30, 2015 2:16 AM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Centurion
>
> Let me try this again.
>
> The my Orion 1, TX EN/TX OUT, both 1 & 2 will not key the Centurion - some
> component in that circuit smoked this morning.
>
> So, why not use the ARB to key the Centurion? Or am I overlooking another
> source on the Orion to key the Centurion?
>
> Miike
> ----- Original Message -----
> From: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>
> To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
> Sent: Sunday, March 29, 2015 15:32
> Subject: Re: [TenTec] Centurion
>
>
> > Why are you wanting to use that?
> > What transceiver are you using it with?
> > The Centurion does not need any MFJ stuff to be keyed properly from a
> > Ten-Tec transceiver.
> > It's useless baggage!
> >
> > The ARB 704 is intended for using a newer transceiver with an old amp
> that
> > has a T/R relay with high voltage.
> > It is totally useless and excess to your needs if you have a newer amp
> and
> > newer transceiver.
> >
> > 73 - Rick, DJ0IP
> > (Nr. Frankfurt am Main)
> >
> > -----Original Message-----
> > From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of
> mcelmer1
> > Sent: Sunday, March 29, 2015 10:24 PM
> > To: Discussion of Ten-Tec Equipment
> > Subject: [TenTec] Centurion
> >
> > I want to interface a ARB 704 with the Centurion but can not figure out
> > where to connect the ARB.
> >
> > Do I use the Key In or Key Out RCA's on the Centurion?
> >
> > Mike
> > W8TRN
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> >
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