====== Using a Second Receiver with the Omni VII ======
[[http://n4py.weebly.com/|N4PY's Omni VII Control Software]] simplifies using an RX-320, RX-340, Pegasus, or Jupiter as a second receiver with the Omni VII.

**From the N4PY Software Help File:**

If you wish to run the RX-320, RX-340, Jupiter, or Pegasus with the Omni VII, you need to add an AUX receiver output to the Omni VII, and if using the RX-320, a mute circuit for the RX-320.

To modify the Omni VII, first you need to contact Tentec and get the 2 small coax TMP jumpers that are made for this purpose. The mod to ask for brings the receiver antenna connection out to the 2 read spare jacks on the back of the Omni VII.  You will also need a Y connector phono cable with 2 male phono plugs on one end and a female phono jack on the other end.  This Y connector is available from Radio Shack.

  -Remove the Omni VII main cover.
  -Viewing from the front of the Omni VII, you will see a large square RF board on the left side.  On the right rear of the board you will see 3 female small coax sockets.  2 of these have no connection and one does have a connection.  Of the 3 sockets, the left one is labeled J15, the center labelled J16, and the right most is labeled "ANT".
  -Unplug coax TMP jumper 23 from the "ANT" socket and plug it into J15.
  -Plug in one the coax TMP jumpers you got from Tentec into J16.
  -Route this cable to the right rear of the Omni VII and plug the other end into socket 36 on the spare jack board.
  -Take the second coax TMP jumper you received from Tentec and plug one end into the "ANT" socket that used to have coax TMP jumper 23 plugged into it.
  -Route this cable to the right rear of the Omni VII and plug the other end into socket 37 on the spare jack board.
  -Now plug each male plug of the Y phono connector into each of 2 spare jacks on the back of the Omni VII.  The mod is now complete.
  -Replace the Omni VII main cover.

The female jack on the Y connector is now an AUX receiver output. This can be run to the antenna input of your second receiver.  This jack is fully protected from high transmit power when transmitting.


__Mute circuit for the RX-320__

I simply took a 12 volt SPDT relay and put the normally closed and common contacts of the relay in series with the speaker on the RX-320.  I put 12 volts to one side of the coil of the relay and ran the other side of the coil of the relay to the "EXT T/R" jack on the back of the Pegasus.  I put the relay in an external box and made connections to go 12 volts, external T/R, audio in, and audio out. I set the external T/R delay control on the Pegasus Control program to the minimum setting.  This works pretty well. I used a junk box relay that is pretty quiet.  I would suggest the Radio shack relay part number 275-241 as a good choice.


                        from       to
                        spk out    spk
                           |        |
                       |---|--------|---|
              RELAY    |  com      n/c  |
                       |                |
                       |                |
                       |  coil     coil |
                       |---|--------|---|
                           |        |
                           |        |
                           to      to 12
                        EXT T/R    volts