Yes... in the USA anyway the FCC Part 97 States Maximum Symbol rate

50 and 144 Mhz 19.2Kb 20Khz 222 and 420 Mhz 56k 100 Khz

73 jerry

-----Original Message----- From: 44net-bounces+jkutche=lehighcement.com@hamradio.ucsd.edu [mailto:44net-bounces+jkutche=lehighcement.com@hamradio.ucsd.edu] On Behalf Of Lin Holcomb Sent: Friday, December 20, 2013 1:52 PM To: AMPRNet working group Subject: Re: [44net] data bandwidth in other countries

(Please trim inclusions from previous messages) _______________________________________________ A question...is it really limited in bandwidth to 19.6K on 2m and 56K on 440 or is it just that this is the maximum used by the modes in common use? While at Data Radio (now calamp) we had 56K on a standard 20KHz channel for Police/Fire and Utilities. Their Viper Radio claims 32kbps on a 12.5khz channel. (as you know there are no more 20khz freq for commercial)

Lin

On Fri, Dec 20, 2013 at 1:14 PM, PE1RDW pe1rdw@amsat.org wrote:

(Please trim inclusions from previous messages) _______________________________________________ On 20-12-13 19:01, kb9mwr@gmail.com wrote:

...

(Please trim inclusions from previous messages) _______________________________________________ Hello all,

I don't like the idea of regulatory discussions on this list.

However, I am curious (as it's pertinent to what we do on this list) what the rules are in other counties for ham radio.. So far I haven't had much luck finding the answers on the web.

Presently in US ham radio data bandwith: 2 meters is 20 khz max, 19.6 kilobauds 70 cm is 100 khz max, 56 kilobauds

Ironically, while there is plenty of space on 70 cm, other modes like ATV are permitted to occupy up to 6 MHz of bandwidth.

Since we have a nice mix of hams from all over the world on this list, I'd appreciated a reply (can be off list) on what is permitted in your country on 2 meters and 70 cm.

Thanks,

Steve, KB9MWR _________________________________________ 44Net mailing list 44Net@hamradio.ucsd.edu https://urldefense.proofpoint.com/v1/url?u=http://hamradio.ucsd.edu/m ailman/listinfo/44net&k=%2FbKrTk44aPYZerIbkX9lDw%3D%3D%0A&r=d2mJWYlz9 QfT7w4aQqZ4NYgDdfT35%2Bio3uxhqpdt4ew%3D%0A&m=OFx92Bt6XnoKTnm4OtGqJtOI uoZjf2xwAbMuXcEzu1A%3D%0A&s=0949b5fee134d5a5b177259c7b1a0fde35d9af268 44be1d8c7b2f1d28c5f6e62

In the Netherlands, if it fits in the bandlimits you can legaly use it

regardless of mode, band or speeds. Offcourse you have to wonder if it is smart to use a small band like 2 meter (2 MHz wide) with very wide modes.

73 Andre PE1RDW

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-- Lin Holcomb

Office: +1 404 806 5412 Mobile: +1 404 933 1595 Fax: +1 404 348 4250

Same to you Tom.

Harold K7ILO On Dec 23, 2013 4:11 AM, sp2lob@tlen.pl wrote:

(Please trim inclusions from previous messages) _______________________________________________ To all participants of the list,

Merry Christmas, very prosperous and Happy New 2014 Year!

Best regards. Tom - sp2lob

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44Net mailing list 44Net@hamradio.ucsd.edu http://hamradio.ucsd.edu/mailman/listinfo/44net

with Net44 you have a static IP directly, no need dyndns is well you can write the ip 44.xx.xx.xx in setting DYNDNS! André ON4HU

Le 23/12/13 16:32, John Wiseman a écrit :

(Please trim inclusions from previous messages) _______________________________________________ Hi all,

I've just got back to experimenting with IP over ax.25 after many years. I've got rip44d running on my Raspberry PI, and my gateway registered on the portal. My ISP doesn't supply static IP addresses, so I'm using no-ip for dynamic DNS.

I'm planning to add support for the gateway to my BPQ32/LinBPQ ax.25 node software, but after searching the web, I can't find any info on how the Amprnet Gateway handles dynamic dns.

So I have a few questions. Can anyone help with the answers?

Does the gateway re-resolve each hostname before sending out each rip44 update? Or is the name just resolved to an address when it is added to the portal?

Is there any mechanism for uses to send RIP messages back to the gateway when their addresses change?

Is it possible to get a version of encap.txt that lists hoatnames instead of IP addresses, so uses can resolve them themselves?

Thanks, John G8BPQ

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44Net mailing list 44Net@hamradio.ucsd.edu http://hamradio.ucsd.edu/mailman/listinfo/44net

On Mon, 2013-12-23 at 15:32 +0000, John Wiseman wrote:

I'm planning to add support for the gateway to my BPQ32/LinBPQ ax.25 node software, but after searching the web, I can't find any info on how the Amprnet Gateway handles dynamic dns.

LinBPQ handles 44-net fine as it is now with the exception of how it handles ARP from what I see. Windows however is a totally different story all it's own. There is no native ip protocol 4 support in windows. XRouter/XR32 claim to handle it, but I have yet to see it work properly. You may want to consider a pseudo nic for Windows for ipencap (similar to linux's tunl0 interface) to handle this. It may also be a can of worms you may not want to open.

Does the gateway re-resolve each hostname before sending out each rip44 update? Or is the name just resolved to an address when it is added to the portal?

I believe hourly, however Chris and/or Brian Kantor can verify.

Is there any mechanism for uses to send RIP messages back to the gateway when their addresses change?

When the gateway is configured properly in the portal, there's no need to send RIP back. The portal will do the hostname resolutions prior to building a new encap.txt and rip table.

Is it possible to get a version of encap.txt that lists hoatnames instead of IP addresses, so uses can resolve them themselves?

If there's a need for users to resolve dynamic commerical IPs themselves, then something is wrong with the user's config. Just like with a phone, internet routes via a series of numbers. A hostname is for human-use moreso than for routing. If we were to eliminate DNS online, i don't think ampr.org would have any routing but 44/8 does.

Mark,

I'm interested in your statement regarding CNAMES and MX records because I tried a couple of configs that didn't work. Then I remembered that RFC 1912 (section 2.4) specifically disallows the use of CNAMES in combination with other records, like MX. Also, I see no entry in DNS for g7ltt.dyndns.org. Instead, it looks like the CNAME for g7ltt.ampr.org is ni2o.ampr.org.

So can you be more specific? For example, what is your situation and what entries did you make in DNS to solve it?

Thanks, Michael N6MEF

-----Original Message----- Hi John ,

Looooooong time no speak!

I use a cname entry. My g7ltt.ampr.org name is cnamed to g7ltt.dyndns.org.

The upshot is that the station trying to connect to me does the DNS chasedown rather than the ampr.org server. I only ever need to update the gateway server once and let my firewall take care of dyndns.

This works with MX records too (heard from g1plt lately? ).

Mark