[HamWAN PSDR] 44.x.x.x HamWAN network at Paine

Sun Apr 27 07:12:16 PDT 2014

I like this plan.  We have a DD mode repeater on site currently that was
moved from Granite Falls.  I think it currently has the antenna at the 150'
level and the ID-1 is using the antenna at 40'.  These can be swapped as
needed.

Scott N7SS

On Sat, Apr 26, 2014 at 9:41 PM, John D. Hays <john at hays.org> wrote:

> I might be able to hit this on 23 cm -- just be sure its in its own
> Ethernet broadcast group, it will transmit anything that appears on its
> Ethernet port.
>
> I think this would be a great experiment -- also on the direct buy
> program, an ID-RP2D can be had for $600 (
> http://www.icomamerica.com/en/amateur/BuyDirect/d-star/default.aspx) and
> added to both HamWan and possibly NR7SS repeater gateway.
>
>
> ------------------------------
> John D. Hays
> K7VE
> PO Box 1223, Edmonds, WA 98020-1223
> <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays> <http://www.facebook.com/john.d.hays>
>
>
> On Sat, Apr 26, 2014 at 9:26 PM, Dean Gibson AE7Q <hamwan at ae7q.com> wrote:
>
>>  I have an idea to provide additional radio network connectivity to the
>> Snohomish County DEM at Paine on 23cm, that would require one or two fixed
>> 44.x.x.x IP addresses at the DEM, and one at my house (separate from my
>> MikroTik radio), that would be accessible via the present 44.24.240.x
>> connection to Paine (and perhaps any other 44.24.240.0/20 address).
>> Both involve the use of two (or more) Icom ID-1 radios in D-Star DD mode.
>>
>> Background:  An Icom ID-1 in DD mode acts just like a piece of Ethernet
>> cable (except that it is half-duplex and limited to a raw 128Kbps speed).
>> No IP address is (or can be) assigned to the device. Any Ethernet packet
>> reaching the ID-1's Ethernet port (whatever the content) is simply
>> encapsulated and transmitted if the radio is in DD-mode.  Similarly, any
>> received data (properly encapsulated by another ID-1) is simply sent out
>> the receiving radio's Ethernet port.  The only radio configuration possible
>> is to select a 23cm frequency and set the radio into DD-mode.  Most of
>> these actions can either be done by the radio's control head, or via a USB
>> port "connected" to a Windows PC running Icom's control software for the
>> ID-1.  This prior sentence is important in the following discussion.
>>
>> As an aside, the transmission of an ID-1 can be addressed to and received
>> by a D-Star DD-mode "repeater" module, routed via the D-Star network over
>> the Internet to another such "repeater" module anywhere in the world, and
>> retransmitted over the air to a receiving ID-1 radio.  This mechanism,
>> while perhaps interesting, is not the subject of this eMail.  I only
>> mention it so as to avoid confusion.
>>
>> In scenario #1 for the ID-1 that already is installed at the Snohomish
>> County DEM:
>>
>>    1. The Ethernet port of the ID-1 is directly connected to a switch at
>>    the DEM that is on the 44.24.240.x network.  In this mode, any packets
>>    received over-the-air by the ID-1 are injected into the local 44.24.240.x
>>    network, and are routed in exactly the same manner as from any other device
>>    hard-wired to the 44.24.240.x network at the DEM.  Further, any Ethernet
>>    packets seen by the ID-1 (whether intended for radio transmission or not),
>>    would be transmitted by the ID-1.
>>    2. Another ID-1, located (say) at my house would be connected to a
>>    router, which would act as though it were directly connected to the
>>    44.24.240.x network at the DEM.
>>
>> I don't view the above scenario as a good idea.  For one thing, the
>> indiscriminate transmissions from the DEM of unrelated 44.x.x.x packets
>> doesn't seem like a good idea.  For another, there is no security.  So,
>> that brings me to scenario #2:
>>
>>    1. At the Snohomish County DEM, place a router (or bridge) between
>>    the ID-1 and the 44.24.240.x network.
>>    2. In this scenario, the ID-1 located at my house would also be
>>    connected to a router that acts as though it were directly connected to the
>>    44.24.240.x (or any other) network at the DEM.
>>
>> Now, here is the wrinkle (to both scenarios):  The ID-1 at the DEM is
>> currently in VERY LOW utilization, being (as so far as we know) only able
>> to contact my ID-1 (in either digital  data or voice mode), and the two
>> 23cm D-Star K7LWH repeater modules (one voice, and presumably one data) in
>> Bellevue.  Also, the ID-1 also supports normal FM voice mode, and is easily
>> able to hit with one watt (from both the DEM and my house) the KB7CNN 23cm
>> FM repeater on East Tiger Mountain.  So, it would be nice to use the DEM's
>> ID-1 radio in different modes, as needed, and switch modes or frequencies
>> REMOTELY as desired.  The solution to this the use of a Digi "Anywhere/5"
>> (or "/2") Ethernet-to-USB box (I have several).  With the installation of
>> Digi drivers on any Windows PC, these allow a PC anywhere in the world to
>> connect over the Internet to a Digi box and have access to several remote
>> USB devices (including any connected USB hubs).  In particular, the USB
>> control port of an ID-1.  In fact, this is how I control my ID-1 at home:
>> this allows me to control the ID-1 from any Windows PC.
>>
>> Hence the desire for a fixed 44.24.240.x IP address for the Digi box at
>> the DEM, allowing REMOTE control and configuration of the ID-1 when the
>> Internet is not available.  While the Digi box can be connected to any
>> network at the DEM, it seems most productive to connect it to the
>> 44.24.240.x network there, allowing remote configuration and control of the
>> ID-1 in an Internet outage (this can be disabled by unplugging the ID-1's
>> USB port).  Unfortunately, the Digi USB boxes are only usable from Windows
>> systems (Digi's remote SERIAL (RS-232) port boxes are supported not only on
>> Windows from 98 on, but on most variants of Linux ...).
>>
>> Yes, this provides a much slower connection to the DEM than the MikroTik
>> radios, but doesn't have quite the strict line-of-sight issues that 5cm
>> does, and thus permits some mobile access.
>>
>> To Scott Hokaker:
>>
>> I am willing to provide a Digi "Anywhere/5" box on permanent loan (or
>> perhaps donation) to this project.  I also have a couple of consumer-grade
>> routers (Linksys BEFSR41, Netgear WGT624v2) that are similarly available,
>> if they are suitable.
>>
>> Comments welcome!
>>
>> -- Dean
>>
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