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New Update on NW Digital Radio Blog
http://nwdigitalradio.com/udr-progress-report
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http://nwdigitalradio.com/udr-progress-report
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By
john@...
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What's in a name? 21 messages
Have you ever thought about product names? It's kind of important. A good
name will identify a product in such a way that the observer is quick to
understand the purpose of the product.
We have been
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Have you ever thought about product names? It's kind of important. A good
name will identify a product in such a way that the observer is quick to
understand the purpose of the product.
We have been
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By
"John D. Hays"
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Feature Creep 14 messages
Transmit testing is well underway and I have begun the board spin to prototype II, in parallel with receiver characterization.
In the process I have added a small housekeeping processor to the radio
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Transmit testing is well underway and I have begun the board spin to prototype II, in parallel with receiver characterization.
In the process I have added a small housekeeping processor to the radio
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By
Bryan Hoyer
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Pre-Order confirmation 2 messages
Is the "Pre-Order Confirmation" a commitment to buy, or just a
confirmation of intent?
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Is the "Pre-Order Confirmation" a commitment to buy, or just a
confirmation of intent?
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By
Dean Gibson AE7Q
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New Updates on Site 7 messages
See new information on http://nwdigitalradio.com
Sent from my iPhone
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See new information on http://nwdigitalradio.com
Sent from my iPhone
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By
John Hays
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Universal Digital Radio Name Change to UDRX-440
Press Release
30 December 2013
Friday Harbor, WA
NW Digital Radio
Universal Digital Radio Name Change to UDRX-440
NW Digital Radio has renamed it's forthcoming digital radio platform. Since
its
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Press Release
30 December 2013
Friday Harbor, WA
NW Digital Radio
Universal Digital Radio Name Change to UDRX-440
NW Digital Radio has renamed it's forthcoming digital radio platform. Since
its
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By
"John D. Hays"
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Question on TX/RX antenna ports 5 messages
Hi all:
I have a quick question on the implementation of the separate TX and RX
ports on the UDRX: I realize its half-duplex, so will there still be T/R
switching internally to protect against tx rf
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Hi all:
I have a quick question on the implementation of the separate TX and RX
ports on the UDRX: I realize its half-duplex, so will there still be T/R
switching internally to protect against tx rf
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By
Jim Kusznir
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Question on TX/RX antenna ports [1 Attachment]
Hi Jim,
Remember that you should also install a low pass filter or band pass
cavity after the isolator to keep it off the antenna for IM reasons.
John Lloyd, K7JL
Jim Kusznir wrote:
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Hi Jim,
Remember that you should also install a low pass filter or band pass
cavity after the isolator to keep it off the antenna for IM reasons.
John Lloyd, K7JL
Jim Kusznir wrote:
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By
John Lloyd
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Question on TX/RX antenna ports
Sorry, my diagram did not indicate that I do also have a band pass filter
on the output of the isolator before the RF goes back to the radio.
In my current setup, I have 2 3-port TX/RX isolators goin
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Sorry, my diagram did not indicate that I do also have a band pass filter
on the output of the isolator before the RF goes back to the radio.
In my current setup, I have 2 3-port TX/RX isolators goin
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By
Jim Kusznir
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New Post on Site
http://nwdigitalradio.com/dds-success http://nwdigitalradio.com/dds-success
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http://nwdigitalradio.com/dds-success http://nwdigitalradio.com/dds-success
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By
john@...
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Webmail Clients 27 messages
When using email over RF either peer to peer or winlink a mail client is required.
We support POP3 and IMAP so you may use your favorite standard email client such as Outlook, AppleMail or Thunderbir
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When using email over RF either peer to peer or winlink a mail client is required.
We support POP3 and IMAP so you may use your favorite standard email client such as Outlook, AppleMail or Thunderbir
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By
Bryan Hoyer
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Forum Etiquette
To all,
The purpose of the forum is for you to ask questions about the UDR and post your thoughts on Digital Amateur Radio. In addition, we use it to gain insight into how you want to use the UDR so
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To all,
The purpose of the forum is for you to ask questions about the UDR and post your thoughts on Digital Amateur Radio. In addition, we use it to gain insight into how you want to use the UDR so
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By
bhhoyer@...
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AW: PNW digital network
Seems the same thing (or nearly) like the "hamnet" we have here in europe
Tcpip based high speed network
Dg9bfc
Sigi
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Seems the same thing (or nearly) like the "hamnet" we have here in europe
Tcpip based high speed network
Dg9bfc
Sigi
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By
"siegfried jackstien"
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SAW filters
In Canada, band starts at 430mhz.
Doug, ve7ept
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In Canada, band starts at 430mhz.
Doug, ve7ept
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By
James D Steventon
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PNW digital network 7 messages
Back in the mid 90s, when packet radio was well established in the
PNW, Vancouver Island, the B.C. mainland, and the Puget Sound area
was well served by a network of nodes and BBSs. The 1200 baud
net
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Back in the mid 90s, when packet radio was well established in the
PNW, Vancouver Island, the B.C. mainland, and the Puget Sound area
was well served by a network of nodes and BBSs. The 1200 baud
net
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By
ve7dhm@...
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AW: SAW Filter limitations
What about using a highpass with about 400 megs?!?
Dg9bfc
Sigi
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What about using a highpass with about 400 megs?!?
Dg9bfc
Sigi
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By
"siegfried jackstien"
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PNW digital network
Yes, very similar. The significant difference I see (and maybe this is
just due to my inability to read German) is that HamWAN attempts to
research and provide specifications for similar networks.
Ou
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Yes, very similar. The significant difference I see (and maybe this is
just due to my inability to read German) is that HamWAN attempts to
research and provide specifications for similar networks.
Ou
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By
Tom Hayward
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Advance Notice: D-STAR DV 4 messages
We have changed the configuration of our DV3000 add-on board to use the same 26 pin header as the Raspberry Pi. The boards are working in the lab now and are headed off for application integration. Tw
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We have changed the configuration of our DV3000 add-on board to use the same 26 pin header as the Raspberry Pi. The boards are working in the lab now and are headed off for application integration. Tw
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By
bhhoyer@...
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SAW Filter limitations 13 messages
The UDR has a SAW Filter in both the transmit and receive paths. We are currently using a 440MHz filter with a 19MHz BW, meaning we are 3db down at 430.5MHz and 449.5MHz.
I have been searching for 2
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The UDR has a SAW Filter in both the transmit and receive paths. We are currently using a 440MHz filter with a 19MHz BW, meaning we are 3db down at 430.5MHz and 449.5MHz.
I have been searching for 2
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By
bhhoyer@...
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G4KLX at Dayton
Jonathan Naylor, G4KLX -- developer of the open source D-STAR suite of
software and contributor to the Linux AX.25
stack will be coming to Dayton Hamvention this year.
He w
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Jonathan Naylor, G4KLX -- developer of the open source D-STAR suite of
software and contributor to the Linux AX.25
stack will be coming to Dayton Hamvention this year.
He w
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By
"John D. Hays"
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