ENC: [1000mp] 1000MP Field - RTTY wiring

Tue, 27 Aug 2002 15:15:30 -0300

Gary

Thanks for the info. I have tried the AF-out output very simply. I have used
a stereo cable (with one stereo plug on each side). At the PK232 side I used
an stereo-to-mono adapter(short-circuited the two wires from the 2 audio
sources). Worked wonder ! I am not sure if that is absolutely the way you
suggested on the second paragraph.

Gary, where I know your call from ? Sounds related to Dxpediton. I guess we
met at Dayton too, didn't we ?

Thanks again

FRED PY2XB

Fred Carvalho
[email protected]
Integral Sistemas e Com Ltda
Sao Paulo - Brasil
Tel 55-11-5522 2600
Fax 55-11-5545 8246
http://www.integral.com.br

> -----Mensagem original-----
> De: [email protected] [mailto:[email protected]]Em
> nome de Garry Shapiro
> Enviada em: domingo, 25 de agosto de 2002 22:50
> Para: [email protected]
> Assunto: RE: [1000mp] 1000MP Field - RTTY wiring
>
>
> Fred:
>
> Yes, the AF OUT is the way, but with some precautions.
>
> * The AF OUTputs are 200 mV RMS, fixed-level; The AF GAIN controls do not
> control them. A way of selecting either or mixing both outputs is
> required.
> A simple way is to feed them to stereo sound card inputs and use the
> appropriate Balance control in the Windows Play Control window. However,
> this is awkward in a pileup. A superior hardware alternative is a
> small box
> with a separate balance pot, at the operating position. The AF OUT drivers
> are emitter followers, so their  output impedance is low.
>
> * You can run the mixed/selected output to the separate mono miniplug
> labelled RXIN AUDIO on the PK232; cut the RX audio line from the 4-pin DIN
> plug, or the main channel audio will always be present.
>
> Garry, NI6T
>
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]]On Behalf Of 50Mhz
> > Sent: Tuesday, June 25, 2002 18:25
> > To: [email protected]
> > Subject: [1000mp] 1000MP Field - RTTY wiring
> >
> >
> > I have wired the PK232MBX to the 1000MP thru the RTTY jack at the rear
> > panel. I have verified that only the main receiver audio is
> routed to the
> > PK232 via RTTY connector pin 2. This avoids the use of the
> > sub-receiver and
> > therefore makes not possible to monitor the transmitting side
> of the RTTY
> > pile-ups with the sub-receiver.
> >
> > I can overcome this problem by using the AF-OUT output where
> both receiver
> > audio are present. Is this the way ?
> >
> > I would appreciate feedback on this and information how you have worked
> > around cases like this.
> >
> > Thanks de PY2XB, Fred
> >
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