Date   

Re: Hailing channel and intermodulation suppression

PE1RDW <pe1rdw@...>
 

On Sat, 22 Jun 2013 05:34:06 +0200, Tom Hayward <esarfl@...> wrote:

I'm trying to embrace the concept of A Hailing Channel for Packet
Radio, but I've run into an engineering roadblock. I am assuming the
"hailing channel" will be something like 440.800 MHz APRS, and the 56k
data transfer channel will be 430.9 MHz. These are 10 MHz apart. How
can I support this on a crowded site that requires a [normally low
bandwidth] intermodulation suppression panel (isolator / low pass
filter)?

With the independent TX/RX connector option, is the internal TX/RX
relay preserved? I'd hate to try to implement an external TX/RX relay
with <10ms turnaround time.

Tom KD7LXL
you can always opt for 2 antennas, from what i understand the UDR is not full duplex anyway so desensing should not be a problem.

--
73 Andre PE1RDW


Hailing channel and intermodulation suppression

Tom Hayward <esarfl@...>
 

I'm trying to embrace the concept of A Hailing Channel for Packet
Radio, but I've run into an engineering roadblock. I am assuming the
"hailing channel" will be something like 440.800 MHz APRS, and the 56k
data transfer channel will be 430.9 MHz. These are 10 MHz apart. How
can I support this on a crowded site that requires a [normally low
bandwidth] intermodulation suppression panel (isolator / low pass
filter)?

With the independent TX/RX connector option, is the internal TX/RX
relay preserved? I'd hate to try to implement an external TX/RX relay
with <10ms turnaround time.

Tom KD7LXL


Re: The sound of one hand clapping

Brian D Heaton <ky9k-lists@...>
 

It would be very nice to visit in person with a bunch of people at DCC in September.  Even  better if we have UDRs then.  That will be an outstanding environment for ideas, experimentation, and such.

73-KY9K/Brian


On 6/20/2013 10:31 AM, John D. Hays wrote:
What can you do if you have the only UDR56k-4 in the neighborhood?

  1. 9600-baud AX.25 applications (RMS Gateway, iGate, Tracker, ...) compatible with Kenwood, Yaesu, etc.
  2. D-STAR Digital Voice simplex access point (Hotspot)
  3. D-STAR Digital Voice Radio (with AMBE-3000 plugin)
UDR-Expedition!

Love the idea!  Regional get togethers make a lot of sense.  The NW Digital Radio team would love to participate.  

SEA-PAC is the ARRL NW Division Convention held annually in Seaside, OR in early June.  How many of you would attend a Friday seminar and configuration/experimentation party in 2014? [Seaside is a great place to bring the whole family, my wife doesn't usually attend the convention but anticipates going every year.]

Our next big event where you can come visit in person with the team behind UDR56k-4 is DCC in Seattle in September.

What regional gatherings would make sense in your area for next year or beyond? We can't attend everything in person, but are interested in meeting you!


John D. Hays
K7VE
PO Box 1223, Edmonds, WA 98020-1223 
  





On Thu, Jun 20, 2013 at 9:31 AM, Douglas <dperv27@...> wrote:
 

At least you've got one guy.. I've got no guy.. So I either have to buy two to experiment with or hard recruit at least that one guy in my RF area.

Of course.. This could be the time to suggest a UDR56K-4 conference somewhere. Everyone bring their UDR's and we can spend the weekend testing/experimenting.. UDR-Expedition!!

--73




Re: The sound of one hand clapping

Bill Vodall <wa7nwp@...>
 

What regional gatherings would make sense in your area for next year or
beyond? We can't attend everything in person, but are interested in meeting
you!
NWAPRS Gathering, weekend after Labor Day each year, North Bend, WA.
Don't want to wait until September? How about Salmoncon in July?
UDR56K isn't QRP but this is the techiest bunch I know of in the PNW
and I'm sure they'd enjoy learning about the new radio and technology
involved.

http://valleycamp.org/page/salmoncon

Bill, WA7NWP


Re: The sound of one hand clapping

"Curt, WE7U" <curt.we7u@...>
 

On Thu, 20 Jun 2013, John D. Hays wrote:

SEA-PAC <http://www.seapac.org/> is the ARRL NW Division Convention held
annually in Seaside, OR in early June. How many of you would attend a
Friday seminar and configuration/experimentation party in 2014?
+1. I'll be there.


Our next big event where you can come visit in person with the team behind
UDR56k-4 is DCC in Seattle <http://tapr.org/dcc.html> in September.
+1. I'll be there.


What regional gatherings would make sense in your area for next year or
beyond? We can't attend everything in person, but are interested in meeting
you!
NWAPRS Gathering, weekend after Labor Day each year, North Bend, WA.

--
Curt, WE7U. http://wetnet.net/~we7u
APRS Usage Pages: http://wetnet.net/~we7u/usage.html


The sound of one hand clapping

"John D. Hays" <john@...>
 

What can you do if you have the only UDR56k-4 in the neighborhood?

  1. 9600-baud AX.25 applications (RMS Gateway, iGate, Tracker, ...) compatible with Kenwood, Yaesu, etc.
  2. D-STAR Digital Voice simplex access point (Hotspot)
  3. D-STAR Digital Voice Radio (with AMBE-3000 plugin)
UDR-Expedition!

Love the idea!  Regional get togethers make a lot of sense.  The NW Digital Radio team would love to participate.  

SEA-PAC is the ARRL NW Division Convention held annually in Seaside, OR in early June.  How many of you would attend a Friday seminar and configuration/experimentation party in 2014? [Seaside is a great place to bring the whole family, my wife doesn't usually attend the convention but anticipates going every year.]

Our next big event where you can come visit in person with the team behind UDR56k-4 is DCC in Seattle in September.

What regional gatherings would make sense in your area for next year or beyond? We can't attend everything in person, but are interested in meeting you!


John D. Hays
K7VE
PO Box 1223, Edmonds, WA 98020-1223 
  





On Thu, Jun 20, 2013 at 9:31 AM, Douglas <dperv27@...> wrote:
 

At least you've got one guy.. I've got no guy.. So I either have to buy two to experiment with or hard recruit at least that one guy in my RF area.

Of course.. This could be the time to suggest a UDR56K-4 conference somewhere. Everyone bring their UDR's and we can spend the weekend testing/experimenting.. UDR-Expedition!!

--73



Re: Updated Youtube demo of the UDR56K-4?

"Douglas" <dperv27@...>
 

At least you've got one guy.. I've got no guy.. So I either have to buy two to experiment with or hard recruit at least that one guy in my RF area.

Of course.. This could be the time to suggest a UDR56K-4 conference somewhere. Everyone bring their UDR's and we can spend the weekend testing/experimenting.. UDR-Expedition!!

--73

--- In UniversalDigitalRadio@..., "kb9mwr" <kb9mwr@...> wrote:

I second the motion of a youtube video.

The only real reason I didn't signup for a pre-order is because I need to convince one of my ham buddies to buy one. I took a look at the map (a good idea by the way) and there is only one guy in my state.

--- In UniversalDigitalRadio@..., "k7udr" <bhhoyer@> wrote:



Hi Doug,

Thanks for spreading the word.

The purpose of the pre-order discount is to incentivize those individuals who are willing to work with a new unproven product (early adopters) and contribute to it's development. It's perfectly reasonable and expected that there will be a second wave (pragmatists) who get on board once the product has been proven.

It's in all of our best interest not to rush the decision-making process and thanks again for your support.

Bryan

Reference: "Crossing the Chasm" by Gordon Moore, 1991

--- In UniversalDigitalRadio@..., "Douglas" <dperv27@> wrote:

Developers,

I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory.

Would it be possible to record and post an actual demo of the UDR56K-4's capabilities on Youtube? (The last discussion was Pacificon 2012 back in Oct 2012)

--73 de N1OBU (Doug)(FN41AN)


Re: Updated Youtube demo of the UDR56K-4?

"kb9mwr" <kb9mwr@...>
 

I second the motion of a youtube video.

The only real reason I didn't signup for a pre-order is because I need to convince one of my ham buddies to buy one. I took a look at the map (a good idea by the way) and there is only one guy in my state.

--- In UniversalDigitalRadio@..., "k7udr" <bhhoyer@...> wrote:



Hi Doug,

Thanks for spreading the word.

The purpose of the pre-order discount is to incentivize those individuals who are willing to work with a new unproven product (early adopters) and contribute to it's development. It's perfectly reasonable and expected that there will be a second wave (pragmatists) who get on board once the product has been proven.

It's in all of our best interest not to rush the decision-making process and thanks again for your support.

Bryan

Reference: "Crossing the Chasm" by Gordon Moore, 1991

--- In UniversalDigitalRadio@..., "Douglas" <dperv27@> wrote:

Developers,

I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory.

Would it be possible to record and post an actual demo of the UDR56K-4's capabilities on Youtube? (The last discussion was Pacificon 2012 back in Oct 2012)

--73 de N1OBU (Doug)(FN41AN)


Re: Updated Youtube demo of the UDR56K-4?

"mikenetbot" <mikenet213@...>
 

Does seem more than reasonable to wait till the units are shipping. It can cause a fair amount of FUD if you start talking too much about a product that hasn't been released yet :).

But given that, I'd 2nd the call for a Youtube demo by someone who knows the ins and outs of the design. Demo setup of two units into dummy loads and make them talk. Watch it on a spectrum analyzer + analog-audio (buzz, buzz). Make it pretty :).

Reason being is from the press coverage of this radio, I blew it off as a yet another TNC bolted to a radio. Wasn't until the MicroHams conference where I talked to people 'in the know' and realized this was the digital experimenter's 70CM dream rig...I could get my hands in there and build on it. I pre-ordered 2 on the spot :).

Now many want a plug-and-play box, and I want an experimenter rig, and I realize we're different audiences (and one's bigger than the other, hehe). But telling everyone exactly what it is and isn't never hurts :).

Michael

--- In UniversalDigitalRadio@..., "k7udr" <bhhoyer@...> wrote:



Hi Doug,

Thanks for spreading the word.

The purpose of the pre-order discount is to incentivize those individuals who are willing to work with a new unproven product (early adopters) and contribute to it's development. It's perfectly reasonable and expected that there will be a second wave (pragmatists) who get on board once the product has been proven.

It's in all of our best interest not to rush the decision-making process and thanks again for your support.

Bryan

Reference: "Crossing the Chasm" by Gordon Moore, 1991

--- In UniversalDigitalRadio@..., "Douglas" <dperv27@> wrote:

Developers,

I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory.

Would it be possible to record and post an actual demo of the UDR56K-4's capabilities on Youtube? (The last discussion was Pacificon 2012 back in Oct 2012)

--73 de N1OBU (Doug)(FN41AN)


Re: Updated Youtube demo of the UDR56K-4?

"k7udr" <bhhoyer@...>
 

Hi Doug,

Thanks for spreading the word.

The purpose of the pre-order discount is to incentivize those individuals who are willing to work with a new unproven product (early adopters) and contribute to it's development. It's perfectly reasonable and expected that there will be a second wave (pragmatists) who get on board once the product has been proven.

It's in all of our best interest not to rush the decision-making process and thanks again for your support.

Bryan

Reference: "Crossing the Chasm" by Gordon Moore, 1991

--- In UniversalDigitalRadio@..., "Douglas" <dperv27@...> wrote:

Developers,

I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory.

Would it be possible to record and post an actual demo of the UDR56K-4's capabilities on Youtube? (The last discussion was Pacificon 2012 back in Oct 2012)

--73 de N1OBU (Doug)(FN41AN)


Re: Updated Youtube demo of the UDR56K-4?

Michael Carey <michaelcarey@...>
 

Me too, but my savings have become less valuable!!

My concern now is that the $AU value has dropped against the greenback in the last month!  A few months ago the $AU bought around US$1.05 (-: ... now it's at US$0.94 )-: !!

I hope it doesn't drop too much more!

73

Michael
VK5ZEA

On 13/06/2013 02:22, Tom Hayward wrote:
 

On Wed, Jun 12, 2013 at 4:37 AM, avignonmimi@...
<avignonmimi@...> wrote:
>
> There needs to be a release date (4Q 2015) or something like that, for most to start saving money. Otherwise they will probably go out and buy a WiFi router :-)

I started saving money when it was first announced and by now I have
enough savings for 2 or 3 :-)

Tom KD7LXL



Re: Updated Youtube demo of the UDR56K-4?

"avignonmimi@..." <avignonmimi@...>
 

I still have a couple Kantronics D4-10 data radios (12 watt), but those radios had a bad oscillator design, as they drifted all over the place. Work fine in a heated room, but at a tower site they need to be temperature controlled somehow.

Hopefully this radio will have a TCXO onboard.

--- In UniversalDigitalRadio@..., Matthew Pitts <daywalker_blade_2004@...> wrote:

Actually, it's Q3 2013, which starts next month. I mean, they HAVE been taking preorders for the hardware for several months now.

Matthew Pitts
N8OHU


Re: Updated Youtube demo of the UDR56K-4?

"John D. Hays" <john@...>
 

Pre-order is open for 2 and 1/2 months -- until this Saturday http://nwdigitalradio.com/pre-order

We are planning for Q3 production for delivery -- we will update if that changes.


John D. Hays
K7VE
PO Box 1223, Edmonds, WA 98020-1223 
  



On Wed, Jun 12, 2013 at 7:47 AM, Matthew Pitts 

 

Actually, it's Q3 2013, which starts next month. I mean, they HAVE been taking preorders for the hardware for several months now.

Matthew Pitts
N8OHU



Re: Updated Youtube demo of the UDR56K-4?

Tom Hayward <esarfl@...>
 

On Wed, Jun 12, 2013 at 4:37 AM, avignonmimi@...
<avignonmimi@...> wrote:

There needs to be a release date (4Q 2015) or something like that, for most to start saving money. Otherwise they will probably go out and buy a WiFi router :-)
I started saving money when it was first announced and by now I have
enough savings for 2 or 3 :-)

Tom KD7LXL


Re: AW: Frequencies, Band Plans and other annoyances

"siegfried jackstien" <siegfried.jackstien@...>
 

Both antennas right hand is ok

Only if you use moon-bounce the direction of the waves change from right to
left

Look at 2 screws (and one nut on one of them represents the signal)

If both are normal direction you can turn the nut from one on to the other
(if the faces of the 2 screws are close enough)

Radiowaves behave the same (but distance between screws is higher and there
is no nut hi hi)

Dg9bfc

sigi

-----Ursprüngliche Nachricht-----
Von: UniversalDigitalRadio@...
[mailto:UniversalDigitalRadio@...] Im Auftrag von
avignonmimi@...
Gesendet: Mittwoch, 12. Juni 2013 11:29
An: UniversalDigitalRadio@...
Betreff: [UniversalDigitalRadio] Re: Frequencies, Band Plans and other
annoyances



I was thinking one station could have right-hand, but then to communicate
the next station would need left-hand (two antennas pointed at each
other).

Wimo only sells right-hand, as they sell to the satellite market, where
only the satellite needs to be left-hand.

--- In UniversalDigitalRadio@...
<mailto:UniversalDigitalRadio%40yahoogroups.com> , M5AKA <m5aka@...>
wrote:

Circular antennas are available from Wimo
http://www.wimo.de/helix-antennas_e.html

73 Trevor M5AKA



Re: Updated Youtube demo of the UDR56K-4?

Matthew Pitts <daywalker_blade_2004@...>
 

Actually, it's Q3 2013, which starts next month. I mean, they HAVE been taking preorders for the hardware for several months now.

Matthew Pitts
N8OHU

Sent from Yahoo! Mail on Android



From: avignonmimi@... ;
To: ;
Subject: [UniversalDigitalRadio] Re: Updated Youtube demo of the UDR56K-4?
Sent: Wed, Jun 12, 2013 11:37:54 AM

 

There needs to be a release date (4Q 2015) or something like that, for most to start saving money. Otherwise they will probably go out and buy a WiFi router :-)

Then too, 70cm may just go away in North America as the Government takes over the band.

I wish there was two or three Local Oscillators though, as the embedded Linux could be used to do a slow frequency hopper over (say) 5 MHz.

--- In UniversalDigitalRadio@..., "Douglas" wrote:
>
> Developers,
>
> I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory.


Re: Updated Youtube demo of the UDR56K-4?

"avignonmimi@..." <avignonmimi@...>
 

There needs to be a release date (4Q 2015) or something like that, for most to start saving money. Otherwise they will probably go out and buy a WiFi router :-)

Then too, 70cm may just go away in North America as the Government takes over the band.

I wish there was two or three Local Oscillators though, as the embedded Linux could be used to do a slow frequency hopper over (say) 5 MHz.

--- In UniversalDigitalRadio@..., "Douglas" <dperv27@...> wrote:

Developers,

I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory.


Re: Frequencies, Band Plans and other annoyances

"avignonmimi@..." <avignonmimi@...>
 

I was thinking one station could have right-hand, but then to communicate the next station would need left-hand (two antennas pointed at each other).

Wimo only sells right-hand, as they sell to the satellite market, where only the satellite needs to be left-hand.

--- In UniversalDigitalRadio@..., M5AKA <m5aka@...> wrote:

Circular antennas are available from Wimo
http://www.wimo.de/helix-antennas_e.html

73 Trevor M5AKA


Updated Youtube demo of the UDR56K-4?

"Douglas" <dperv27@...>
 

Developers,

I'm trying my hardest to spread the word about the UDR56K-4 here in CT, but many hams have adopted the "proof is in the pudding" theory.

Would it be possible to record and post an actual demo of the UDR56K-4's capabilities on Youtube? (The last discussion was Pacificon 2012 back in Oct 2012)

--73 de N1OBU (Doug)(FN41AN)


Re: Frequencies, Band Plans and other annoyances

"Douglas" <dperv27@...>
 

Here in Connecticut, we don't have a published 70cm Band Plan. I've asked for our Spectrum Manager for his input, but he is out of town on business and will discuss with me when he returns. I suggested we adopt the Northern California Band Plan:

http://ncpa.n0ary.org/overall_70_cm_band_plan.pdf

More info to follow..

--73 de N1OBU (Doug)(FN41AN)

--- In UniversalDigitalRadio@..., "k7udr" <bhhoyer@...> wrote:

As we move forward to deployment, it occurs to me that the landscape for operating frequencies is anything but stable.

Here in Western Washington we have 19 - 25kHz simplex channels designated as packet, of which only 3 are contiguous, such that we could use them as a 100kHz high speed channel.

We also have 3 pairs designated as packet repeaters.

What are your thoughts on how to deploy the UDR in your area, particularly once we move past the current 4800 NB and 9600 baud rate limitations.

Bryan - K7UDR