XG-100P service manual

[merlin]

Just going through this thread again and saw this post. The RF-5000 labeled control head above is an RF-5010FP remote. I'm new to the Harris XG-100M but now own several with CH-721 heads. Some consider me somewhat of an expert on the Harris RF-5000 HF transceiver line which includes the RF-5010, 5020, 5022 and 5022(E) variants which I've owned over a dozen of.

With that said there is nothing shared in any way between the CH-721 head originally designed by the old General Electric team which was bought by M-A/Com then Tyco then Harris around 2009. The Harris RF-5010FP and the RF-5000 line was originally designed in the mid 1980s by Harris, well before they purchased the GE, M-A/Com, Tyco line. The only tiny thing these two items share is the HARRIS logo.

If that's not enough, I have a RF-5010FP and a CH-721 in front of me right now. Don't make me take them apart and post pictures of the completely different and unrelated insides.

So you have a dud RF-5010 with a mucked display or keyboard. Pull those from a junkbox CH-721.
Those are the only two parts that will swap, nothing else is even close.
This is all from Harris RF Rochester and no connection with GE/MaCom Ericsson Tyco only that Harris now owns them.

 

[merlin]

Mentioned above, the RF-5000 is an SDR which is true. A totally dumb SDR at that.
The control head has the controller, encryption and interface board.
A faceplate covers all that with all the human interface controls. pots, switches, button board and display board.
A ribbon connects the, for lack of description, the faceplate board to the interface board.
I have only seen one of these opened ever, so can't say whats different with other Falcon series radios.

 

[motorcoachdoug]

THANK YOU DAN!!!!!

 

[prcguy]

Mentioned above, the RF-5000 is an SDR which is true. A totally dumb SDR at that.
The control head has the controller, encryption and interface board.
A faceplate covers all that with all the human interface controls. pots, switches, button board and display board.
A ribbon connects the, for lack of description, the faceplate board to the interface board.
I have only seen one of these opened ever, so can't say whats different with other Falcon series radios.

None of this is true and none of the boards mentioned are in the control head. The main chassis holds the the separate controller, encryption mother/daughter and interface boards. The faceplate connects to the main chassis with a multipin M/S connector. I just sold off some of my spare RF-5000 encryption, controller and other related boards and I've very familiar with where they live in the radio.

Here are some docs that show where all the boards mentioned live and none are inside the control head. The info below is of the main chassis and not the control head.

The RF-5000 series is a very smart radio and probably one of the first HF SDR transceivers ever commercially produced. Its performance will rival the specs of most radios today except for the highest end amateur transceivers that have been fighting for first place over the last couple of years.

 

[prcguy]

To further and hopefully finish the debate on whether or not the M-A/Com, Tyco CH-721 control head is in any way related to the Harris RF-5000 series control head, here are a few pics showing the interface and control board from an RF-5000 next to a CH-721 which has been said to house these circuits, but the boards are much larger than the entire CH-721 head. The keypads are completely different with a different layout of the internal membrane switches.

The displays are also completely different with hard coded, specific icons for things like AM/FM/USB/LSB/Data modes and other features in the RF-5000 with Volume and other very specific icons in the CH-721 control head, there is no similarity whatsoever between the two displays and nothing is interchangeable.

Bottom line is there is nothing related between the Harris RF-5000 series control head and the M-A/Com, Tyco CH-721 control head.