ASTRO Spectra Rear DB15 for data

[KK4LQX]

Hello All,

I have an ASTRO Spectra W9 that I would like to connect a TNC to and use the radio for data (APRS primarily) . I have gone over and over the pinout out of the radio and TNC and i'm certain my cable is ok. My pinout is as follows:

Radio Pin - Radio Function / TNC Function - TNC Pin
4 - SWB+ / Voltage Input - 7
8 - Dig GND / Ground - 6
11 - Disc. Audio / Receive Audio - 5
13 - PTT / Push to Talk - 3
15 - Mic Hi / Transmit Audio - 1

I use this same pinout at home on a Spectra and it works great. The info on this radio is: Model Number: T04KKH9PW9AN, Serial: 412CDG1332, FLASHcode: 580001-001800-0, Firmware 11.71.07.00, DSP N08.03.05

I am unable to PTT or receive audio from the radio. Is there something i'm missing in the Code Plug or cable that would change/prevent this?

Thank for your time and assistance

 

[KK4LQX]

Tried using DB25

So for an update. I made a cable to use the DB25 connector that would otherwise be used for a VRS or Extra Control Head using the following pinout:

Radio----Function----TNC

1----------PTT----------3

9-------DET AUD------5 (RX Audio)

12---------MIC HI-------1 (TX Audio)

18-------DIG GND-------6

22---SWB+ (+12VDC)---7

I have receive audio but I still have no PTT.

Now i'm fairly certain it's something in the Code Plug. Any suggestions would be greatly appreciated.

 

[radioman2001]

You may have to do some jumper setting on the command board, I remember something to that effect that not all options are jumpered from the factory depending on how the radio is being used. Check on Batlabs.com or post over there for more info.

 

[cmdrwill]

You have to add a jumper in the AUX connector board on the radio.

You will also need a filter on the transmit audio so the Mark and Space are at the same deviation.