[aprssig] D7 and ITEM

Robbie, wa9inf mwrobertson at comcast.net
Sat Oct 7 15:21:34 CDT 2006


Yes, in my experience, the D-7's decoder "stinks" and I think its 
because, #1, it does not like less the perfect deviation from the 
sending stations, and #2, it needs a good signal input. Your chances of 
improvement is depent on the antenna you use. The shipped antenna is a 
dummy load! I greatly improved my results by changing to a better 
antenna with more capture length..

If you are using it mobile, get away from using any flexible springy 
antenna.. The whipping around causes data loss in a heartbeat!

I haven't any experience in sending "ITEMS"

Good luck and let us know about your expeience in changing antennas... :-)


Chris Kantarjiev wrote:

>Can someone tell me if the D7 will/should decode an ITEM packet, or
>if this is one of the types that the D7 just ignores? We're trying
>to advertise a repeater with
>	)W6WGZ-Rpt!3717.55N/11941.04Wr 147.180+PL146.2 441.175+PL146.2
>The digi is a TNC-X/Digi-X, which only allows 63 characters of btext.
>Using an OBJECT with a timestamp doesn't allow the entire text to
>be sent. So we switched to ITEM. The packet is getting to FINDU just
>fine, but I never see it on my D7, so I'm wondering....
>(And, not to start a flame, but does the D7's decoder just stink?
>I "hear" what seem to be nice solid packets but the majority don't
>decode at all... some do. Maybe something wrong with my radio,
>though, since I can't seem to get a decodable posit out as of about
>12 hours ago, either.)
>73 de chris K6DBG

More information about the aprssig mailing list