Max,
I was running it at 1200BPS for the tests. I can receive all packets from APRS on UIVIEW and HyperTerminal. My Kenwood HT call N3MVF-2 can even send a message to N3MVF on APRS software through the TNC and into the laptop. With the HT feet away, I cannot connect or ack the message back from the laptop/TNC. I get on the Icom TX that empty carrier. Same symptom on both TNCs. In summary, recives, keys TX at TNC and radio but cannot connect loop test back to mycall/N3MVF on TNC or hear packets transmitted at 1200baud using APRS.
Good to know abt the 9600 too.
16 years of packet and sat BBS and I'm stumped.
Tnx Greg
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of SV1BSX Sent: Wednesday, August 13, 2008 9:27 PM To: Gregory Dober; amsat-bb@amsat.org Subject: [amsat-bb] Re: TNC Problem
Hi Greg,
sorry for asking but, have you before any experience with 9600 bPs ???
9600 is a direct, pure FSK signal, not AFSK like 1200 bPs in order to hear "tone-packets". Therefore, you can not hear anything else than short carrier-bursts ("quick empty carrier" as you correctly pointed out).
So, if you heard just a carrier on another radio, that is 100% normal for 9600 bPs. I can't see any problem on that.
73, Mak SV1BSX
----- Original Message ----- From: "Gregory Dober" gjdober@comcast.net To: amsat-bb@amsat.org Sent: Thursday, August 14, 2008 3:36 AM Subject: [amsat-bb] TNC Problem
Went back to attempting to work digital modes on the birds. Hooked a new Timewave 9600 and was able to communicate immediately by hyperterminal. I tried a loopback test and couldn't connect to my callsign though the TNC would light TX. Went to an APRS program, connected the TNC to my Icom and was able to copy stations. When I would transmit, TNC, radio all keyed up but I heard no packets on another radio. Just a quick empty carrier.
Borrowed my friends AEA PK 900.same problem.
Never had this problem on past TNC's or laptops. The only difference is they all had direct serial connections to the laptop. The Dell Inspiron is about 6 months old and uses the serial to usb connections. I have two Belkins for the com ports. Are some serial to usb connections problematic for the TNC? This is the only change I can note since I last worked packet. APRS and digital modes about a year ago on an older computer with a serial connector.
Perplexed as I awaited GO-32.
Greg
N3MVF
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb