Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site mit-eddie.UUCP Path: utzoo!linus!philabs!cmcl2!harvard!think!mit-eddie!clements@bbnccq From: clements@bbnccq Newsgroups: net.ham-radio.packet Subject: Q Street on TNCs Message-ID: <253@mit-eddie.UUCP> Date: Wed, 30-Oct-85 13:09:31 EST Article-I.D.: mit-eddi.253 Posted: Wed Oct 30 13:09:31 1985 Date-Received: Sun, 3-Nov-85 07:20:00 EST Sender: nessus@mit-eddi.UUCP Organization: MIT, Cambridge, MA Lines: 40 From: Bob ClementsFellow Packeteers: Two comments on the article in the new QST on the TAPR, Heath and AEA TNCs... 1) The article says, approximately, that the TAPR code implements the ARRL-blessed AX.25 (Service mark pending!) protocol. And that it implements it correctly and has no bugs. Comment: AAAAAAAARRRRRRRRRGGGHGHHHH!!!!! Yuck! Such lies!!!! It implements only version 1 of the protocol, not the current V2.0. And it has bugs all over the place, particularly under any congestion. I am furious at TAPR for not getting out their maintenance release in literally years. I refuse to even consider a TNC-2 for this reason. ARRL continues to write only glowing reviews of anything at all. I continue to have no faith in their reviews. Yuck! Yuck!!! Ptooey!!!!!! and now that I have that out of my system.... 2) QST says the AEA has fixed the design bug that caused NOVRAM to fail so much on TAPR TNCs. I have never seen any real claim as to what needs to be done to fix it. Early rumors involved the clock oscillator running at the wrong speed sometimes, which it did, but that is NOT the thing (or the only thing) killing the NOVRAM. Does anyone know what AEA did about the NOVRAM? Packeterm uses a lithium battery and static RAM, but maintains software compatibility. Heath added a feedback loop in the reset circuit to get a longer reset pulse, which may or may not be the reason my HD4040 NOVRAM works better than the ones in my two TAPR TNC-1s. But I don't know anything about the AEA circuit. 73, Bob, K1BC