Re: [digitalradio] Multiple Digital Modes: Time to get rid of most ?

2008-04-21 Thread Tom Azlin, N4ZPT
Hi Andy, Sorry about your pinched nerve, but all the (exotic) modes are great. Perhaps there is a natural selection of well known modes as a common starting point. Perhaps over time modes that are extremely robust under different conditions I've used both MixW and MultiPSK but still takes

Re: [digitalradio] April QST page 35

2008-04-07 Thread Tom Azlin, N4ZPT
Hi John, No outrage at all from me unless the mode suddenly switches to cover several KHz and wipes our my QSOs. Issue for me is not email over radio but the modem and how it is used. If a person is at the radio on both ends even less outrage. 73, Tom n4zpt. John Becker, WØJAB wrote: That

Re: [digitalradio] FCC Petition to Re-Establish Narrowbnad RTTY/Data Subband Comment Period Open

2007-12-28 Thread Tom Azlin, N4ZPT
Hi Mark, How would this kill various digital modes with a bandwidth of 1500 hertz or less? I operate Oliva mostly at 500 hertz wide and sometimes and 1000 hertz wide. 73, tom n4zpt Mark Miller wrote: The FCC has released

Re: [digitalradio] Re: The sorry state of VHF/UHF Packet

2007-12-07 Thread Tom Azlin, N4ZPT
Hi Ed, Ed Woodrick wrote: [snip] And in this entire thread, I'm surprised that I haven't seen any comments about D-STAR! 960 bps is built into every radio and the ID-1 can do 128 kbps. It's not AX.25, but it is packet digital data. It's pretty cool to put two ID-1s back to back and watch

Re: [digitalradio] Re: The sorry state of VHF/UHF Packet

2007-11-30 Thread Tom Azlin, N4ZPT
Well, we have been using the D700s for a couple years now on 9k2 in a straight packet mode. I just made sure the message sizes fit the TNC in the D700. 73, Tom n4zpt Bill Vodall WA7NWP wrote: On Nov 29, 2007 11:37 AM, Rud Merriam k5rud@ Which radio? The Kenwood D710.They've

Re: [digitalradio] Re: The sorry state of VHF/UHF Packet

2007-11-30 Thread Tom Azlin, N4ZPT
Hi Rick et al Rick wrote: [snip] 9k6 was the minimum usable speed for TCP/IP via ham radio in my view. It was moderately expensive, but as you know, many rigs came along that could do it. Most synthesized rigs can now, I have one here in the shack, but it will never be connected because

Re: [digitalradio] dstar and digital radios???

2007-02-14 Thread Tom Azlin, N4ZPT
Sorry, the 1.2 GHz ID-1 is FM, Digital Voice, or Digital Data! KV9U wrote: digital or analog. The 1.2 GHz rig is strictly digital and operates at a much higher data rate and has a raw 128 Kbps speed. And in testing around here on 2m and 23cm we have seen a range advantage for Digital

Re: [digitalradio] Re: dstar and digital radios???

2007-02-14 Thread Tom Azlin, N4ZPT
Hi. KV9U wrote: Since P25 is very expensive, are almost all users getting used equipment? How much does this cost? I have heard new prices for HT's at $1500. Is that really true? Our local police chief said the multi mode HTs they are buying were $3k each. They did normal FM for the

Re: [digitalradio] Proposed: New 80meter Bandplan for USA

2006-11-23 Thread Tom Azlin, N4ZPT
in the other 80 percent of the 80 meter band. And put both the semi-automatic and automatic modes up in the wider area. 73, Tom Azlin n4zpt expeditionradio wrote: Proposed New 80 meter Bandplan for USA 3500-3540 = CW 3540-3560 = 500Hz BW All Modes. 3560-3580 = 500Hz BW All Modes. Including Auto

Re: [digitalradio] Re: FCC Corrects J2D 500Hz Bandwidth Error

2006-11-23 Thread Tom Azlin, N4ZPT
HI Bonnie and the others commenting.. I certainly do not hate any mode but I believe that there are some incompatible uses of the bands that need to be separated given the number of inconsiderate operators that seem to be out there. I do not like getting stomped on by an operator using a mode