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[aprssig] Help setting up Kenwood D700A

Vic Fraenckel victorf at windreader.com
Sun Sep 11 20:10:41 UTC 2005

I am not the brightest bulb in the chandelier! 

I have been struggling for two days to get my 700A on the air. I have it interfaced to a laptop running APRSPoint. I am receiving packets from other stations and see them plotted on my map, but I am unable to see my own packets. I have a GPS attached to the radio and 'believed' I had things setup properly on my radio. Not seeing my position show up on the map is discouraging. It leads me to believe I do not have forgotten something. Where have I gone wrong? Perhaps something is not set right in AP? Maybe I am not supposed to see myself! From the map display there appears to be a digipeater locally. I even went to findu to see if my station was there with no luck. One area I may have overlooked and just found in the User Manual is menu item 1-9-5 and 1-9-6. Do these have any effect on my problem? If so, I expect I should set 1-9-5 to 9600 and 1-9-6 to 1200. Right? 

If someone could guide me in the radio set up - sort of step by step I would be grateful. I must have missed something. What are the minimal things that should be attended to as far as the radio's menus are concerned?

I have the radio setup in TNC PKT mode, NMEA, 1200B packet transfer rate. My GPS is a Garmin GPS35 and I have verified that it is transmitting NMEA 4800B. In the vain hope that I wired the GPS => radio plug backwards I have even tried interposing a null modem between the GPS and the connector to the radio. I wired a DB9 on the free end of the plug as my GPS has a DB9 on the output. Neither direction worked. BTW: the pigtail is wired to the DB9 so that the GPS Data appears on the plugs tip without the null modem and on the ring with the null modem. The manual is somewhat vague sayig that the tip (white) goest to DATA IN on the gps and the ring (red) goes to DATA OUT on the gps. I am not clear as to which device is the DTE and which is the DCE. If OUT means to the radio in this context, I have the DB9 wired incorrectly. However the null modem corrects this for testing purposes. I WILL rewire this so as to not have to use the null modem.

Any enlightenment will be appreciated.


Victor Fraenckel - The Windman         
victorf ATSIGN windreader DOT com
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