Re: [DSTAR_DIGITAL] Re: Bit Rate?
If you change the vocoder, doesn't that mean that everyone else will have to as well, or else you will be off by your lonesome ? But I may be wrong...steve n2gyn wrote: Thank you all for you reply and comments. -- Ham Radio Spoken Here !!! EM11ma - South Mountain, Texas
Re: [DSTAR_DIGITAL] linked reflector + traditional callsign routing
Just out of curiosity Carl, how can you tell that the JA station was using a dongle ? I suspect the JA station was call sign routing to Cleveland (CQ Cleveland) and because Cleveland was linked to a reflector, all stations likewise linked heard the JA station. Why else would the US station need RXCS to be heard in JA ? steve Carl W8KRF wrote: Jeff, As has been said, he was coming through the reflector because other stations were hearing him. I had the DVR running on my hotspot and I was able to listen to your entire exchange with him. I believe any problems were on his end since he was using a Dongle. I keep these recording for 30 days, so if you are interested, I can play them back for you on WB8THD C local sometime. 73, Carl W8KRF -- Ham Radio Spoken Here !!! EM11ma - South Mountain, Texas
Re: [DSTAR_DIGITAL] linked reflector + traditional callsign routing
The addition of Dplus to the native Dstar transport system can make for some un-intended consequences. Folks did AOK without Dplus linking for quite some time. Dplus is nice for tying repeaters together for wide area operations and a great add on to the native system. For me, it is easier to set UR=W8KRF and call you than to try and figure out if you are linked / unlinked / or know what repeater you are using. I'll try and give you a call - use One Touch, RXCS to capture my call to reply. 73, steve Carl W8KRF wrote: I believe he said he was using a dongle and he may very well have been linked to the Cle repeater which was linked to REF001C. -- Ham Radio Spoken Here !!! EM11ma - South Mountain, Texas
Re: [DSTAR_DIGITAL] Please help me support D-Star ...
A wonderful tool Bert - I do wish the low speed data port could carry an abbreviated form accessible to mobile stations without the benefit of an internet connection. Bert Bruner - KE4FOV wrote: There's been a lot of discussion in this thread about D-Star itself, but, unless I missed something, there's only been a passing mention of DStarUsers.org. -- Ham Radio Spoken Here !!! EM11ma - South Mountain, Texas
Re: [DSTAR_DIGITAL] US D-STAR band planning and directories
Phase 1 project 25 digital is a public safety specification. I know of no amateur radios in production that offer P25. For interoperability many public safety entities install base station equipment for the non-compatible system and cross connect the foreign radio system through a switch to the native system. For example an 800 Mhz EDACS public safety system installs VHF P25 stations and cross connect on demand through a switch. When public safety moves to phase2 digital there will be a glut of phase 1 radios that hams may use in amateur service. I was hoping Alinco would offer a DSTAR add on board to make their radio compatible. steve bruce mallon wrote: -- Ham Radio Spoken Here !!! EM11ma - South Mountain, Texas
Re: [DSTAR_DIGITAL] US D-STAR band planning and directories
DSTAR on 220 sounds like it would make a tremendous lot of sense. Propagation similar to 2M - No Pave Paws ? Radar - clean spectrum available - Antennas and Duplexers would be an issue for a little while, but could surely be overcome. Folks would for the most part be buying a new Icom repeater anyhow, so cost would be about the same, 2M v 1.25M. I am not sure how much of the band remains purely amateur, though. At first glance this might be a great direction for dstar in the US. steve bruce mallon wrote: -- Ham Radio Spoken Here !!! EM11ma - South Mountain, Texas
Re: [DSTAR_DIGITAL] Fooling the GPS firmware in an IC2820 to display position data without a GPS sig
Don't know about the 2820, but on an ID800 I ran a GPS emulator program in place of the GPS receiver to feed the radio. I can put in any coordinates I want. Do a search on messages or look in the files and links sections - I believe the emulator program and some relative posts are there. 73, steve jkvochick wrote: I have a 2820 installed in a place where receiving a GPS signal would be very, very, difficult. Sadly, without receiving a valid GPS signature, some of the other cool features, like distance to station doesn't work. Since this radio is installed in a fixed location, I was wondering if you could inject an appropriate rs232 signal from say an Arduino microprocessor board, so that the internal units believed they had valid psiiton data? Jim WB8AZP Ham Radio Spoken Here !!! EM11ma - South Mountain, Texas
Re: [DSTAR_DIGITAL] Re: Dec 2009 QST p 50 - SSB vs. AM
Interesting side note. I was thinking 2 Ghz operational fixed links were displaced in the US by PCS Cellular service - perhaps 960 Mhz or 6 Ghz ? Doesn't make that much difference - many applications use 960 Mhz. with a fractional T1 data channel. Trunking repeaters just allows a large pool of subscriber units better access to a small pool (trunk group) of radio channels. Certainly not the correct answer for every application. Now if the radios were using amplitude modulation instead of some form of angle modulation, that may be different. Merry Christmas and best regards, nu5d On 12/20/2009 8:53 PM, kb9mwr wrote: Well my county isn't even trunked. My city is analog trunked. My county still uses 2 GHz analog links between VHF receive sites.
Re: [DSTAR_DIGITAL] Re: Can';t get IC92AD radio to scan
I believe that is where Bank Links come into play - link several banks together to scan all included. steve w3zpi wrote: Thanks for all the help. I was able to get it work but, I have one other question. There are 350 repeaters on band A and when it scans it only covers 1 thru 13. Is there something else I have to do to have it scan 1 thru 350? Ralph - W3ZPI
Re: [DSTAR_DIGITAL] Simplify Abbreviations for Alpha Tags
It's easy to segregate into different banks. USA1, USA2, CANADA, etc. Also not enough radio channels to hold every gateway..Would be nice to have a bank of call signs, another bank of frequencies, etc (larger than those available now) where you can mix and match UR/RPT1/RPT1, or better yet, a PC interface to replace the control head with a GUI interface and downloadable repeater lists... steve Pete wrote: -- Belton Ham Expo - The Cheapest Hamfest around. NU5D - Nickel Under Five Dollars
Re: [DSTAR_DIGITAL] Question: Scanners?..
DSTAR is an option on the Icom PCR-2500 - http://www.icomamerica.com/en/products/receivers/pc/pcr2500/default.aspx 73, steve nu5d Swiger, Jeffrey M. wrote: Can any of the Digital Scanners out Hear/Decode D-Star?.. Got thinking about it today, as I was talking Simplex to a friend about some Checks that should be in, and Know the office I used to work at now has a Digital Scanner for Dispatch.. Jeff-N8NOE
[DSTAR_DIGITAL] New JA Repeater List / Contest Thoughts ? [1 Attachment]
JF1TEU has added a new xls spreadsheet in the dstar digital files section. File attached de nu5d Thoughts on the Icom sponsored WW Dstar Contest ? -- A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] IP addressing vs. DV DD Protocol Transport
John D. Hays wrote: I think that any IP address (terminal) assigned to a DV radio is an artifact of the ID-1 networking design. I also think Icom engineering missed that DD is D-STAR Frame encapsulation of Ethernet and not TCP/IP. Certainly TCP/IP can live in the Ethernet frame, but its my belief that to be true to the D-STAR air protocol, any gateway design must support transport of any Ethernet frame that is encapsulated by a D-STAR Frame. Like so many networking transports, there are layers to the stack. The gateway should transport D-STAR frames to the gateway that currently services the DST/UR D-STAR address. I certainly don't have a problem where the use of something DNS facilitates that, but I don't like artificial dependencies and artifacts. So lets say that Gateway 1 is at 24.22.100.19 with FQDN KX1XYZ.dstartransport.net and is servicing the following: Repeater Module KX1XYZ A Repeater Module KX1XYZ B Repeater Module W1AW (Think outside the Icom implementation, callsigns are just addresses) Radio NU1TY Radio W1ABC ... Radio KN1ZKY If we want to use DNS, we certainly can have KX1XYZ_A IN A 24.22.100.19 or IN CNAME KX1XYZ.dstartransport.net. KX1XYZ_B IN A 24.22.100.19 or IN CNAME KX1XYZ.dstartransport.net. W1AW IN A 24.22.100.19 or IN CNAME KX1XYZ.dstartransport.net. NU1TY IN A 24.22.100.19 or IN CNAME KX1XYZ.dstartransport.net. W1ABC IN A 24.22.100.19 or IN CNAME KX1XYZ.dstartransport.net. ... KN1ZKY IN A 24.22.100.19 or IN CNAME KX1XYZ.dstartransport.net. Then if KN1ZXY keys up on Gateway 2 at 188.199.200.5 with FQDN WX1XX.dstartransport.net Its record is rapidly updated to KN1ZKY IN A 188.199.200.5 or IN CNAME WX1XX.dstartransport.net. (of course you could use record types as well) This would allow traffic to be directed to either Gateway 1 (KX1XYZ) or Gateway 2 (WX1XX) by looking up the serviced callsign and routing accordingly. When an Internet packet arrives at the designated gateway via IP addressing, it extracts the D-STAR frame and directs it based on its callsign and associated port (not a meaningless IP address). If the D-STAR frame is DV, it should eventually end up a radio or other device with AMBE decoding capability, if it is DD, the DD device would extract the Ethernet packet and present it to the device's Ethernet connection. Then the DD device owner can build whatever network topoplogy they desire based on the protocol selected. (For example, a token passing bus, might be better for ID-1 throughput, than a CDMA based TCP/IP system.) Personally, I would not implement gateway address management as a TCP/IP DNS system, leave that to allow gateways (and other Internet connected D-STAR application servers) to find and communicate with one another. The address mapping can happen in dynamic structures (like a hashtable) and only use a scheme like the DNS records, to fill in when the destination gateway is not known. Nate Duehr wrote: On Jul 29, 2009, at 3:17 AM, dlake02 wrote: Your comment on the 10.X.X.X range is interesting - whilst I would gladly sweep that away in an instance, I am concerned that there is a use that may break. Does anyone know what was in Icom's mind when they used that range ? Of course, the range itself isn't the key... 10.x.x.x is a reserved private IP range and used by lots of folks behind NAT. What's interesting about it is that -- I believe... in Japan, where JARL runs the repeaters and Gateways that they've also built a 10.x.x.x intranet between all of them... over here, we NAT straight out to the public IP world. I think they can manage their network from their ID-1's over there, and connect to other stuff on the 10.x.x.x network, but I can't be sure. Just rumors I've heard. I always HOPED that the whole point of registering a DNS entry and having a 10.x.x.x network address was so that the system could route that traffic from say, and ID-1 in Denver, and someone else's ID-1 in another city. But I don't think in the current configuration today that it works, nor does it look like there's any plans to actually accomplish it. That sure LOOKS like what they were originally intending to tackle though, considering the entire D-STAR product was the 1.2 GHz repeaters/radios at first ONLY... then the VHF/UHF repeaters and cheaper radios were released. But you can see a lot of stuff was originally intended for those running ID-1 rigs, and didn't translate all that well over to the non-data-capable rigs. (High speed data, that is.) These are all total guesses looking at the design in hindsight and knowing the whole thing was designed for ID-1's and the 10 GHz links, originally... then the Gateway and VHF/UHF came along, and are by far the more commonly used side of D-STAR now. -- Nate Duehr n...@natetech.com mailto:nate%40natetech.com facebook.com/denverpilot
[DSTAR_DIGITAL] NU5D's Shameless WW DSTAR Contest Plug...
I will be QRV tommorrow, 07/30 around 13:00 Zulu for WW DSTAR Contest Contacts. Rules: http://www.icom.co.jp/world/d-contest/ No Reflectors. No Hot Spots. No DV Dongles. No Dplus. LOCAL CONTACTS DO COUNT. Set UR=NU5D or Set UR=/K5CTX B or use One Touch Received Call Sign Write to capture my call sign for reply. K5CTX is NOT linked to any reflector (Contest Rules) so if you don't have my call captured or UR=NU5D or UR=/K5CTX B, I will NOT hear you. If you get RPT? in reply, Try Again. K5CTX was busy. If you get UR* or YOUR? I should have heard you. If I don't reply, CALL AGAIN. Sometimes the call sign gets garbled in doesn't capture. I will try and operate for a couple of hours and then off and on till the contest ends Saturday. 73 de nu5d -- A Decibel saved is a Decibel Earned...
[DSTAR_DIGITAL] Contest Underway - Ososso, MI Special Event Station
The DSTAR World Wide Contest is underway - relaxing and lots of fun contacts. http://www.icom.co.jp/world/d-contest/ AND The Ososso Michigan Train Festival Special Event Station gets underway tomorrow: http://www.w8shi.net/Home/community/trainfestival2009 Make some contacts. 73 de nu5d
[DSTAR_DIGITAL] D-STAR Contest Announcement
Below is the latest announcement. I am excited as WriteLog is the only contesting software package that will support the D-STAR Contest as outlined on the ICOM Japan website. *Ray Novak, N9JA | Division Manager – Amateur and Receiver Products* ICOM America, Inc. | 2380 116^th Ave NE | Bellevue, WA 98004 | Tel: 425.454.8155 www.icomamerica.com *Hey, D-STAR Fanatics*…..Are you ready for THE contest? *WELL, WE ARE!* Several locations across the globe will be ready to hand out 3 points for each Q, (short for QSO) with our ICOM related stations. JQ1YLI JQ1YOL JI2ZYH JA3YUA JL3YKZ JL3YRP JE4YJG JR5YAP JH6ZKR JE7YWW JR8YKT F1SHS G4ICMIQ3DQ N9JA SY1ICOM VE3EIVE7SUN VK3COM In the US, we will use N9JA and will be in the WR. So, make sure to have N9JA in your URCALL memory list! I will be on the air over the weekend. To make sure I work as many JA and EU callsigns as possible, I will be camping with a radio and logging computer in the bunk with me. Speaking of the logging computer, I have worked with the wonderful people at WriteLog to develop a D-STAR Contest module for the WriteLog contesting software package! For those of you who already own the WriteLog program, below is the link for the D-STAR Contest Module upgrade. We are in the final phases of beta testing! So, check out the link below for your WriteLog D-STAR Contest Module. http://www.n9oh.com/d-starcontest or writelog.com http://writelog.com For those of you who do not own write log, below is the link to purchase and download: WriteLog is distributed exclusively by Ron Stailey, K5DJ. Contact Ron by e-mail or by telephone. Visa and Mastercard accepted. 504 Dove Haven Dr. Round Rock, TX 78664 Voice: 1-512-255-5000 (8 AM to 9 PM CST) Fax: 1-512-255-1376 For quicker service, please send orders to this address rather than directly to K5DJ. Orders: sa...@writelog.com mailto:sa...@writelog.com or visit http://www.writelog.com/ordering.htm Please TRIM your replies or set your email program not to include the original message in reply unless needed for clarity. ThanksYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/dstar_digital/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/dstar_digital/join (Yahoo! ID required) * To change settings via email: mailto:dstar_digital-dig...@yahoogroups.com mailto:dstar_digital-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: dstar_digital-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [DSTAR_DIGITAL] Crossband DV to FM Methods
Take 1, IC800D. Replace the loudspeaker with an 8 to 10 ohm resistor. Connect a small transformer across the loudspeaker (terminating resistor) to isolate the dstar receive audio from the FM radio. There is a +5 VDC signal from the micro in the ID800 used to mute the loudspeaker. This signal goes to nearly 0 VDC during receive. (The squelch signal on the ID800 does not work on DSTAR - only FM and maybe AM for packet connections). I used the 5V going to 0 V during receive to turn on a small PNP transistor used to turn on the transmitter on a MA/COM M3 repeater. I set the M3 up for duplex 4 wire audio. The 600 Ohm secondary from the ID800 goes to the line in on the M3. The DSTAR to FM audio is 'reasonable' but I prefer the crisp audio from the ID800 to the more bass sounding audio from the M3. Next I used an 8 pin data connector in the mic jack of the ID800. Took RUS (receiver unsquelched) from the M3 to an NPN keying transistor, to the PTT lead on the ID800 (be careful - there is +DC in the mic connector and you could really do some damage connecting to the wrong pin. Finally I took line out from the M3 through a second 1:1 600 Ohm transformer with a pad to drop the level into the mic jack of the ID800. FM to DSTAR is marginal to acceptable as far as audio quality goes. Also the volume control on the ID800 needs to be set and taped in place for reasonable TX audio into the M3. The M3 is set up for 3 khz @ 1000hz = -=10 dbm 600 and vice versa. Channel guard adds 0.75 khz - to the TX setting. I did not leave the FM to DSTAR mic / ptt connection hooked up. I do leave DSTAR to FM connected and have the gateway connected to 5A in the morning and 1C afternoon - just to give the FM folks a taste of what DSTAR is like. Plan is to leave it a month or so, the then unhook it so I can have my ID800 back for fixed station operation. Your mileage may vary. I sure DON'T want to pollute a nice DSTAR network with not so good sounding FM, but I wouldn't criticize anyone for making such a connection (with prior consent of the reflector owner / operator and gateway operator and others who swim in the same stream) on a limited basis for demonstration purposes. (maybe 1 hour a week for a net for a month or so, but certainly not full time). Please don't start a war over this - my opinion only - 73 steve nu5d. PS - I am disappointed to say the least about the audio quality reports from unbiased listeners - also 30+ years in LMR and familiar with empahsis / de-emphasis, roll off, etc. sb Bob Witte K0NR wrote: We've got a local D-STAR 70 cm repeater on the air and I am looking at approaches to allow access via analog FM users. (This is probably a religious issue, so please chill :-) -- There is more to ham radio.
[DSTAR_DIGITAL] Re: Native D-STAR vs. DPLUS linking
There is no question Dplus makes contacts possible for more people, in large due to the obtuse nature of setting up radios that you likened to MSDOS vs Windows as a user interface in an earlier post. Many average hams find setting up a radio and using the features of say, and IC91, far too complex. Set UR=CQCQCQ and RPT2 to G and you can make contacts, provided the repeater is linked to something. DSTAR continues to emerge. That said, I believe the long range solution to more fully utilize DSTAR lies in a sensible user interface that integrates all of the features of DSTAR (G2 and Dplus) in a user friendly format. Also making system statue available on demand through the low speed data capabilities will be a tremendous asset. Picture adding a $300 PC to your radio and getting a GUI interface where the PC gets a daily or weekly update of the state of DSTAR, and uses that info to communicate with and control your radio. I would not go so far to liken G2 Dstar alone to HF Digital because HF Digital has functional difficulties like the AOR format being too unreliable, and other sound card formats being difficult to set up. Dstar saw a lot of growth before Dplus and Dplus continues to be a tremendous stimulus for continued growth. Just my thoughts on a Sunday afternoon, 73, Steve nu5d. john_ke5c wrote: Source routing to an individual callsign (native D-STAR) has its purpose Callsign routing to a long haul truck driver who is in range of a DStar repeater say 5% of the time, and whose whereabouts even then would be known only if he remembered to key up? Without dplus and reflectors, DStar would be on its way to join HF digital. I agree 100% with Ed. 73 -- John -- A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] DStar uses
Perhaps the protocol could be revised to give the whole bandwidth to data if voice is not needed ? It would not be the original spec, but rather, a derivative. de nu5d John D. Hays wrote: This is really a question of bandwidth. -- A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] RS-92 programming software
Press the M/N button on the radio - toggles memory name. 73 de nu5d jorgensenflemm...@rocketmail.com wrote: I do have a problem with the software RS-92. When I try to load from a file with all the memory channels configured I do not get the name of any of the memory channel uploaded. The freq is OK I am missing the scan name or name of fex the repeater. The scan name setting is ON. Any good ideas? OZ4P, Flemming -- A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] Re: UPDATE on Group Order buyings
Hello Fred, Do you have an email address to order the kits, or a web site, and do you accept paypal ? Please tell us the procedure to order a kit. Thanks and 73, Steve NU5D Fred N. van Kempen wrote: Hi, Q: What radios will these boards work on ? A: Pretty much any radio which has access to the low-level audio input/output (modulator/discriminator), such as those radios which have a port for connecting a 9600bps modem (TNC) to. --fred -- A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] Obfuscation of Callsigns (Was: US Topic - Collecting and publishing information)
How would you use call sign routing if you obscured the callsigns ? Call signs are a part of DSTAR and really the matter in my opinion is having dstarusersorg log time and date and repeater vs call sign (maybe a real call sign, and maybe not). DX Central manually does similar for DX Spotting, Call Sign, Time and Frequency. To me this (dstarusers.org) is very useful in making contacts. DPRS - wanna be unseen, turn your GPS off or use an NMEA Emulator and put your coordinates in Tahiti. Perhaps 40M cw would be more discreet for some ops ? No Flames Please ? 73, Steve k7ve wrote: --- In dstar_digital@yahoogroups.com, Nate Duehr n...@... wrote: Or another way around it, would be to transmit obfuscated data in those fields and ID in voice. This tickles another train of thought I've had. I think the current registration of stations to use the gateway system is the wrong approach. I understand the concerns for Internet initiated conversations, a la the DV Dongle, having some vetting of the credentials of the operator. -- A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] Updates
Very true Nate - sri about the confusion - the intent was that the JA stations cannot use reflectors other than through the dongle. Thanks, Steve Nate Duehr wrote: I think your info that: The JA stations can connect to Gateways with their dv dongles, and reflectors but not via RF. is confusing, Steve. RF: They can call from RF through their Gateways to our Gateways with /REPEATER routing, but not individual callsign routing. They have no access to Reflectors from RF at all. DV-Dongle: They can use a DV-Dongle and connect that direct to any of our Gateways or Reflectors. Normal DV-Dongle behavior, just like we'd bought one. What doesn't work: Direct callsign routing to/from a JA Amateur between Trust Server domains. This is supposedly coming, someday. RF from the US: We can also /REPEATER route to their Gateway equipped repeaters on the list you provided. We can not individual callsign route to them on the other Trust Server Domain. I don't know if Robin has convinced any JA Gateways (or JARL) to run DPlus (doubt it) on their Gateways, so I doubt Dongle users can connect to their Gateway equipped systems. That would change things dramatically. Nate WY0X From: dstar_digital@yahoogroups.com [mailto:dstar_digi...@yahoogroups.com] On Behalf Of Steve Bosshard Sent: Friday, February 13, 2009 10:36 AM To: dstar_digital@yahoogroups.com Subject: [DSTAR_DIGITAL] Updates JL7HHS is qrv in Dubai via dv dongle - also new repeaters in Slovenia. Many JA stations are now using the dv dongle and call sign routing. -- A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] Re: Breakthrough / Re Hash Permissible Communications.....
Hi Jess, Yep, CW can go anywhere but I was thinking of data like RTTY. Seems Voice, CW, SSTV and FAX are lumped together and CW and FSK are lumped into the CW portion of the bands. Maybe folks with better knowledge of the rules can clarify this for me. Congrats in ticket since 1959. I was born in 53, but trying to catch up as fast as I can...73, Steve NU5D ps - I don't think I would want to order a pizza or see if the wife needs a loaf of bread via ham radio, not that I couldn't - just not the time or place...sb Jess Girard wrote: Steve: Why would you be concerned about sending data in the voice portion of the band? In the states, at least, you may for example communicate via CW everywhere in the HF bands, but you may not use voice except in the portion of the band where it's permitted. I cannot imagine why you would force yourself out of the voice portion to transmit data. After all, you're transmitting digital data. Or has FCC changed the rules again? I've had my ticket since 1959 and I tend to be slow to pick up on the new rules changes. I would NEVER order a pizza via amateur radio, but that's my old school learning I guess... A Decibel saved is a Decibel Earned...
Re: [DSTAR_DIGITAL] Re: Using analog cross band repeater
Before I bought a dstar system I took a pair of GE Phoenix SX mobiles and made a back to back repeater - It would work AOK if I hard keyed the transmit radio and left it keyed. The time it took the synthesizer to load and the transmitter to settle caused leading data loss. I did have to do a data inversion taking discriminator audio thru an emitter follower stage, then direct coupled to a common emitter stage and to the VCO modulator stage (after audio filtering). A CCD delay IC between the RX and TX may have helped - also a crystal controlled TX may have been faster on key up. I also could have left the TX keyed and switched a later stage in the TX chain. That said, as a repeater it simply repeated what was present on the input - no DCD - just COR to key - I don't know how this would work in a bidirectional application where you carry data from the repeater to the fill in area, then turn around and carry data from the fill in area back to the repeater site. Seems like the time needed to load the syn and switch between send and receive would kill the thing - not trying to rain on your parade, but there may be some challenges. Best success, Steve NU5D Tony Langdon wrote: At 01:00 PM 11/24/2008, you wrote: I have tried it several times and could not get it to work. I think that the delay between keying up the dstar radio and the FT-8800 repeating the signal is too great the fully relay the data packets. Seems the best hope for a quick and dirty repeater/range extender is to get a couple of suitable (i.e. not PM ) commercial radios, modify them and connect them back to back so they will pass GMSK. :) Just have to make sure the repeater doesn't distort the signal or take too long to key up (and lose the headers). 73 de VK3JED http://vkradio.com There is more to amateur radio..
[DSTAR_DIGITAL] Re: [DSTAR] Subject tagging ...
is set to [DSTAR_DIGITAL] - Sorry about any trouble it caused. The tag on the German site is [D-STAR] and the WIA tag is [Dstar] - close, but not the same as [DSTAR] . On the ID800 cable, as said in my earlier reply, the programming cable has a level shifter that converts RS232 to TTL and goes into the spkr jack on the ID800. It will also program the 2820 thru the speaker jack. The DATA cable shown on the N5ZPR site will NOT program the ID800. It is used for low speed data or GPS Emulator, or between a GPS receiver and the radio. The cable shown on the N5SPR site WILL program the 2820 and 91AD thru the DATA jack. A cable with a level shifter is needed to program the ID800 thru the speaker jack. Best success, Steve NU5D Richard wrote: The change in the subject tag is also causing problems for us down here. We have a local email list with the [DSTAR] tag and use the tags to do a lot of list sorting etc. Cheers Richard VK3JFK Fred N. van Kempen wrote: That would not be good, as it is already in use by Yahoo!'s DSTAR group. Which is in German, by the way, but quite useful. --fred PA4YBR _ From: dstar_digital@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Bob McCormick W1QA Sent: Thursday, November 06, 2008 3:29 AM To: dstar_digital@yahoogroups.com Subject: [DSTAR] Subject tagging ... Did someone change the Subject tag on this mailing list from [dstar_digital] to [DSTAR]? Bob W1QA
[dstar_digital] Classroom DSTAR Reminder
Tomorrow, November 4th @ 9:15 AM Central Standard Time, (15:15Z) Reflector 5C, or direct to /K5CTX B or NU5D, Temple Texas, the 4th Grade Class at Tarver Elementary will receive a demonstration of Amateur Radio using DSTAR. Please identify whether you are calling via reflector or direct. Thanks for being there to help bring along the next generation of radio amateurs...and say Howdy to the kids. Contact [EMAIL PROTECTED] for more info. - 73, Steve NU5D -- There is more to amateur radio..
Re: [dstar_digital] poor vhf receive on repeater
Do you key the repeater transmitter while the hand held is receiving ? (+3v on TXE) Is the transmitter also keyed when the repeater receiver is receiving ? Tom wrote: We did a small test today. If you hook the receiver on the repeater up and use low powe from distant station you get alot of break-up. If you hook your handheld up at the duplexer receiver point the break-up goes away and you get better receive through the handheld. Any ideas?
Re: [dstar_digital] how are you routing?
Just tried it. It makes a short key press beep, then almost immediately a second short beep, and then about 2 seconds later when it writes the received call sign, a third short beep, all the same pitch. Be careful, Ray - it is easy to put the radio in Call Sign Squelch or DCS if you make a short key press. 73, Steve Greg Forrest wrote: I think it actually makes two to three tones - but I cannot confirm this since I replaced my 800 with a 2820. http://groups.yahoo.com/group/dstar_digital/
Re: [dstar_digital] how are you routing?
Actually, the icf files in the files section on this yahoo group have pretty much every gateway loaded for the 2820 and 91ad. I left the A bands out in the 91AD icf except JA repeaters because JA repeaters use band designators differently to make more room. It is easy the bulk edit the frequency and rept 1 and rept 2 call signs using the dstarcom.exe utility from Dean Gibson. Just put the memories into a spread sheet, edit, and then move the edited csv file back into an empty icf file. Yesterday afternoon, I called for close to 1/2 hour trying to make a gateway contact to demonstrate dstar to an old ham friend who is new to dstar. I tried gateways all over the world where I saw activity on dstarusers.org One repeater showing activity kept giving REPT ? - Folks were not leaving any room for someone to join in the conversation. Please leave a pause between transmissions - this is just plain courtesy. Others showed the station being on the air but not reaching the destination. Next when I was trying to contact a distant station that was calling, another local ham kept trying. I asked what he had his UR set to. He said CQCQCQ...Always worked before. This is someone who has been using dstar for over a year. What this tell me is that WE more experienced (at least I claim such - maybe made more mistakes than most) are NOT doing a good job of teaching our fellow hams and then we confuse the basics with depending on one touch and reflectors. Both are great tools but folks need the basics first - kinda like learning DC theory before doing power factor corrections. Maybe some hands on short training sessions are in order One touch can really lag when the called station changes bands or repeaters. It may take 10 minutes or longer for YOUR gateway to be updated. Same goes for gateways with non-fixed ip addresses. It can take a LONG time for a new address to propagate thru the network - ie, I hear your station, but you cannot hear me because my local gateway doesn't know your new address..yet... Anyhow /soapbox off - no flames intended whatsoeverjust wanting to help make things better for everyone on dstar. 73, Steve NU5D Nate Duehr wrote: Ray T. Mahorney wrote: A reminder and a request folks; some of you are going to see this more than once and for that I apologize. Recently a couple of you folks have tried to call me but you haven't told me where you are routing from so I cant respond. You can hit your one-touch button... just a thought... Much easier than trying to program in where they're calling from. I agree, folks should give the full routing info when they call you, but if they don't... as long as they transmit long enough/a few times, you can usually get to the one-touch button quick enough to catch it. Nate WY0X
Re: [dstar_digital] how are you routing?
One Touch will not work calling the JA stations. You have to put their repeater call in the UR...UR=/JP8YDZA or the like, because their network in not completely compatible with things in the US. Even at best there are plenty of opportunities for one touch to be less than reliable, folks changing repeaters / or modules, etc and the distant gateway not being updated quickly enough.. 73, Steve NU5D Tony Langdon wrote: At 07:40 AM 8/17/2008, you wrote: I agree, folks should give the full routing info when they call you, but if they don't... as long as they transmit long enough/a few times, you can usually get to the one-touch button quick enough to catch it. Assuming they're not Japanese operators at this time. 73 de VK3JED http://vkradio.com
[dstar_digital] I am new to D-Star
Welcome to DSTAR, John. Wonder if you are near a dstar repeater with an internet gateway - That will give you access to the world once you register with your local repeater keeper. 73, Steve NU5D mablethorpevisions wrote: I am new to D-Star and have just got my hands on an ICOM E92D. http://groups.yahoo.com/group/dstar_digital/
Re: [dstar_digital] Re: reflector guideline ??
Regarding every user can link and unlink, that applies to the K5CTX system in Temple, TX. I believe the unlink works everywhere, but am not certain. Steve Steve Bosshard wrote: Hey Fran, I suppose folks could set RPT2=NOT USE http://groups.yahoo.com/group/dstar_digital/
Re: [dstar_digital] Re: Japan Contact (corrected)
You cannot, for the time being, reply to JA7NJN or use one touch. You would have to put their repeater in the UR. Perhaps UR=/JP7YELA or /JP7YEMA. I don't know about the dongle users - I suspect until the JA trust server better coordinates with the US trust server, there will be a few hitches. I don't rely on one touch reply because when folks change repeaters or bands it takes some time for the far end gateways to catch up. For me it is much better to call the repeater instead of the individual. As far as forgetting the change the UR back to CQCQCQ, kinda like remembering to flush. 73, Steve franmiele wrote: How would Dongle users reply? Also, I don't see anyone doing this while they are driving. Today wwe had an instance where JA7NJN was calling on AAA1HD and none of us could get back to him. http://groups.yahoo.com/group/dstar_digital/
[dstar_digital] Coaxial Cable Shielding
Aside from the losses mentioned earlier in coaxial cable, (IR loss, Dielectric Losses, and Radiation) under radiation, aside from the percentage of shielding, the resistivity of the shielding also comes into play: For shielding to work perfectly, the shield conductor must have no resistance. If you look up the skin depth formula, one of the terms is sigma, the conductivity of the material. If sigma is small, the skin depth gets big. John So 100% shielding does not mean 100% containment, necessarily. 73, Steve NU5D
Re: [dstar_digital] GPS Receiver for ID-800H
Wonder if you are looking at a particular make and model ? I could do a little looking and see if there is a manual with better detail. 73, Steve NU5D Sherman Banks wrote: What I would ideally like is just a plain-jane receiver with the RS-232
[dstar_digital] Echolink / DSTAR Coming to Baghdad - Help Wanted !
http://groups.yahoo.com/group/hamurabihams/message/379
