[amsat-bb] Re: Packet Contact

[Robert Bruninga]

> where is the contact?
> that just shows that both were able to copy each other.

But they exchanged a QSL and both got the original exchange info from each
other.
On a shared single channel resource, we should be concerned with contact
efficiency.
This takes 16 packets for 8x8 or a total of 64 confirmed contacts. 2N for
N*N contacts
Compared to 256 packets for 64 confirmed contacts the analog way (4*N*N)
Or compared to the impossible 2560 retries trying to do it via the ISS
BBS!

>> [an] aprs style contact it is usualy done like this:
>> station A sends a CQ beacon with his exchange info
>> station B sends a CQ beacon with his exchange info
>> station B sends a bulletin message with all the calls he has
>> recieved so far in the pass. Station A sends a bulletin with
>> all the calls he has recieved so far in the pass. if station A is in
>> the list of station B and Station B is in the list of station A,
>> I would say it is a confirmed contact.
>>
>> in most places there are igates that will send the pass to the APRS
>> internet stream and you can check back on aprs.fi or findu.com

Bob, WB4APR