Hi Scott: Any other diagnostic I could run on this ?
In [email protected], Scott Miller <sc...@...> wrote: > > No, the T2-301 never had that problem. Could be the receiver itself has > a sensitivity problem. > > Scott > > > Yono Adisoemarta wrote: > > > > > > > > > > That T2 board might still has the "deaf syndrome" due to wrong R and C > > during mfg ? > > > > Paulus N5SNN > > > > Sent from my iPhone > > > > On Jul 11, 2009, at 9:09 AM, "w6cjq" <w6...@... > > <mailto:w6cjq%40yahoo.com>> wrote: > > > > So I had a chance to compare things I connected a sound card interface > > to a FT8800 a VX 150HT to a MFJ TNC and the T2 301 The T2 decoded the > > fewest amount about 50 % less than the sound card and about 40 % less > > than the MFJ TNC set up. I live in an area where the signal comes off > > the top of a 3600 ASL hill and gives you a full scale reading on the > > radios so I have lots of signal to play with, just have a hard time > > believing the T2 reciever is really not working that well, must be a > > setting in this thing somewhere. --- > > > > In [email protected] <mailto:tracker2%40yahoogroups.com>, "Lynn > > W. Deffenbaugh (Mr)" <ldeffenb@> wrote: > > > > In my experience, it is unfair to compare a hardware TNC with a sound > > card interface. The sound card seems to be able to decode a much > > broader range of signals than the hardware TNCs. This is based on > > KPC-3+, TinyTrak4, and T2-135 hardware TNCs. Once the radio levels are > > tuned well, the TT4 and T2-135 (v1.2 only) can come close to what I was > > getting from AGWPEpro, but the sound card still consistently decoded > > 10-25% more packets even when fed by the same radio via an audio Y cable. > > > > That being said, I've still retired the sound card system and am using a > > TinyTrak 4 as my IGate (KJ4ERJ-2/-7) and T2-135s with Nuvi 350s as my > > trackers (KJ4ERJ-9 and KJ4ERJ-14). I just couldn't justify the overhead > > of keeping a windows PC alive and WIRED to a radio connected to an > > antenna on a tower in the lightning capital of the world (Florida). > > With the TT4, I'm using a Bluetooth to serial connection between the TNC > > and the javAPRSsrvr server so there's an ultimate air-gap protection there. > > > > Your mileage may vary, but the DSP power of a computer with sound card > > was always better in my experience. > > > > Lynn (D) - KJ4ERJ > > > > w6cjq wrote: > > > > Hi so I am a proud new owner of a T2-301 Prior to this I was using a > > west mountian sound card interface with a FT8800. So here is what I > > have noticed. I set the T2-301 up and got it talking through the com > > port on my computer. I use Ui View 32 and noticed that I was not > > seeing a lot of traffic. I turned on my HT and heard a lot of traffic > > on 144.39 but the T2-301 only seems to pass about every 5th or so > > transmission to UI-View 32. The stations do show up on the map and I > > can transmit a query through the T2-301 it just seems to be real > > selective about what it here and sends to the com port. > > > > I also monitored the unit in hyper terminal and the same amount of > > traffic appeared > > > > Any thoughts on this?? > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > >
