[1000mp] IF Tap

[Mark Tetrault]

On Thu, 14 Mar 2002 09:27:41 EST, you wrote:

>Mark, I use my 1000MP with a Yaesu YO-901 Multiscope.
>
>The YO-901 is a monitoring instrument, originally designed for use with the 
>FT-901DM series of amateur equipment. Here is a schematic to construct an 
>interface that allows the YO-901 to be used with the FT-1000MP. The interface 
>provides both TX and RX monitoring. It is in pdf format and you need Acrobat 
>reader to open it.
>

Got a spare YO901??? I need one for my FT902DM shack!!!

Will the YO301 do the same thing? The manual says that it will monitor
the received signal if the Vinput is connected to the radio's IF. 

>The interface is made from parts readily accessible from Radio Shack 
>including the box for less than $5.00.
>

Looks simple enough. Your schematic shows the interface getting its
signal from the aux speaker from the radio? Not the IF? The interface
allows the use of the speaker signal from the radio?

>You also need to construct a cable to connect the TX GND on the back of the 
>FT-1000MP or 1000D to the 11 pin female plug at position ACC 2 on the back of 
>the YO-901. Using a RCA plug into the TX GND connect the center conductor of 
>RCA plug to pin 11 on the 11 pin male plug and connect the outside of the RCA 
>plug to pin 8 (ground from the radio) on the 11 pin male plug.

You  kinda lost me there. Why does the scope need a ground signal from
the radio?

>
>Check out the schematic I have posted at my website.
>http://www.qsl.net/k3gv/shackandequipment.html
>
Got it, thanks.

>73,
>George K3GV

George thanks for your input.

Mark