GE Phoenix Resources

2-Channel Phoenix SX

This area contains general manuals, schematics and documentation for the GE Phoenix SX and PSX radios. The original parallel port programming hardware and the EPROM data structure information is based on the work of Gary Marsh VO1CPU. Gary and others did the original pioneering background work. I have built upon the work of Gary and others to create the GE-Flash for Windows. You can visit Gary's website for additional phoenix info.

Special thanks to Mike Swiderski K4HBI who gave me my first Phoenix PSX-200 radio and turned me on to these great radios. Larry Waggoner WOKA also helped tremendously with the software debugging, programming details and testing on the various phoenix models. Although I can't remember all the names, many other people have contributed to the GE-Flash project over the years. Thanks to everyone for helping keep these great radios alive!

Microphone and Connector Wiring

Many phoenix Radios used the CES 600L microphone with an optional touch tone pad. The CES microphones are probably still in production and have a number of internal configurable options available (mic & tone gain, etc). For complete option details view the 600L owners manual in PDF format.

CES 600L Microphone Wiring

Color  Function  To Radio P911
*BLUE  +12V DC INPUT +12V
RED  PTT (logic low) 2
WHITE  TX AUDIO OUT 4
BLACK  CTCSS HANG UP (logic low) N/C
SHIELD  AUDIO/LOGIC GROUND 3
YELLOW  LOGIC & POWER GROUND 3

* The BLUE +12V wire on the CES600 microphone should be connected to a switched +12V line inside the radio. On my radios I found the switched +12V power at point HL57 (one of the inter-board feed through pins located on the top board near the front panel). I then used one of the extra pins (pin 8) on P911 as my +12V power source. Note on the SX I had to cut a trace on the bottom side of the board in order to use Pin 8 as a microphone power pin; on the PSX-200 no trace ran to this pin and I just ran the wire from HL57 to Pin 8.


Phoenix Microphone Connector (P911)

P911 Description
1  GROUND (A-)
2  PTT - TX  (Active LOW)
3  MIC SHIELD GROUND
4  MICROPHONE INPUT HI
5  MICROPHONE INPUT HI
6  RESET (Active LOW)
7  CHANNEL SELECT
8  (I converted this pin to +12V for mic power)

Phoenix Power Connector (P910)

P910 Description
1  TO IGNITION SWITCH + (2A Fused)
2  RX MUTE (Active LOW)
3  EXTERNAL SPEAKER HI
4  FILTERED VOL/SQ HI
5  SPARE (Channel A/B Select)
6  GROUND
7  EXTERNAL SPEAKER LOW
8  GROUND
9  CG DISABLE (Active LOW)
10  INTERNAL SPEAKER HI
11  +13.5 VDC POWER INPUT (15A Fused)