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TCP/IP Over Packet
Questions that came in via email. Thanks to John for responding
Is it possible to use TCP-IP over ax25 with large MTU ?
The UDR56K implements the Linux AX.25 stack using a socket interface. Each
Questions that came in via email. Thanks to John for responding
Is it possible to use TCP-IP over ax25 with large MTU ?
The UDR56K implements the Linux AX.25 stack using a socket interface. Each
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By
"k7udr" <bhhoyer@...>
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#432
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Re: Software interface to UDR56K
Hello,
I am interested in several project using the udr56k.
The first is testing several types of forward error correction at the higher speeds.
I what to find what works best so that we can use 56k
Hello,
I am interested in several project using the udr56k.
The first is testing several types of forward error correction at the higher speeds.
I what to find what works best so that we can use 56k
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By
Marshall Denny <MarshallDenny@...>
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#431
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Re: Software interface to UDR56K
Hi Marshall,
Everyone is heads down leading up to Dayton.
What type of software are you planning. It may help us understand what priorities our customers have for writing software?
Hi Marshall,
Everyone is heads down leading up to Dayton.
What type of software are you planning. It may help us understand what priorities our customers have for writing software?
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By
"John" <john@...>
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#430
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Software interface to UDR56K
I don't want to rush NW Digital.
But, I would like to get API's to the radio as they become finalized.
This will allow me to start building some software before I get the
I don't want to rush NW Digital.
But, I would like to get API's to the radio as they become finalized.
This will allow me to start building some software before I get the
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By
"marshalldennyai4cm" <MarshallDenny@...>
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#429
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Re: USB Radio Interface (URI) ?
--- In UniversalDigitalRadio@..., "Douglas" wrote:
>
> All,
>
> Can the URI (from DMK Engineering Inc.) work with the UDR56K-4 to provide an additional radio interface?
>
>
--- In UniversalDigitalRadio@..., "Douglas" wrote:
>
> All,
>
> Can the URI (from DMK Engineering Inc.) work with the UDR56K-4 to provide an additional radio interface?
>
>
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By
"John" <john@...>
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#428
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USB Radio Interface (URI) ?
All,
Can the URI (from DMK Engineering Inc.) work with the UDR56K-4 to provide an additional radio interface?
http://www.dmkeng.com/Products.htm
v/r
Doug (N1OBU)
All,
Can the URI (from DMK Engineering Inc.) work with the UDR56K-4 to provide an additional radio interface?
http://www.dmkeng.com/Products.htm
v/r
Doug (N1OBU)
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By
"Douglas" <dperv27@...>
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#427
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Re: Power output... is it adjustable?
Power output is firmware adjustable via PWM, then filtered and switched to the PA for fast turnaround. This is a low bandwidth path and is not designed for modulation.
However, you can still do
Power output is firmware adjustable via PWM, then filtered and switched to the PA for fast turnaround. This is a low bandwidth path and is not designed for modulation.
However, you can still do
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By
"k7udr" <bhhoyer@...>
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#426
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Re: Power output... is it adjustable?
Are these power steps fixed in hardware, or are they soft-adjustable by firmware (eg PWM output from MCU determines DC voltage delivered to TX RF amplifier chain)?
If the TX power is adjustable over
Are these power steps fixed in hardware, or are they soft-adjustable by firmware (eg PWM output from MCU determines DC voltage delivered to TX RF amplifier chain)?
If the TX power is adjustable over
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By
"zl2wrw" <ross@...>
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#425
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Re: Power output... is it adjustable?
From the Data Sheet:
Tx Output Power @ 13.8VDC
25, 10, 5 W
We may go lower but it becomes diminishing returns in RF Output Power vs DC Input Power.
Bryan
From the Data Sheet:
Tx Output Power @ 13.8VDC
25, 10, 5 W
We may go lower but it becomes diminishing returns in RF Output Power vs DC Input Power.
Bryan
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By
"k7udr" <bhhoyer@...>
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#423
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Re: Power output... is it adjustable?
From the PDF file on the web site: TX Output Power @ 13.8VDC: 25, 10, 5 W
From the PDF file on the web site: TX Output Power @ 13.8VDC: 25, 10, 5 W
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By
Dean Gibson AE7Q <yahoo@...>
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#424
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Power output... is it adjustable?
Hi Everybody,
We all know the UDR56K-4 is a 25 Watt radio... but can it be turned down?
There will be times when a power output of a few hundred milliwatts would be perfectly
Hi Everybody,
We all know the UDR56K-4 is a 25 Watt radio... but can it be turned down?
There will be times when a power output of a few hundred milliwatts would be perfectly
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By
Michael Carey <michaelcarey@...>
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#422
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Re: UDR56K-4 current draw / fuse
I too have seen them on batteries inside ups units where I work, and all of the fork trucks in the building (probably over 100). I would think a slight covering of 'NoOx' compound used in electrical
I too have seen them on batteries inside ups units where I work, and all of the fork trucks in the building (probably over 100). I would think a slight covering of 'NoOx' compound used in electrical
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By
ka1ifq <ka1ifq@...>
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#421
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Re: UDR56K-4 current draw / fuse
Your last sentence is an understatement (especially for the experimenter). The convenience factor cannot be overstated, and no other connection standard that I have seen comes close. I have
Your last sentence is an understatement (especially for the experimenter). The convenience factor cannot be overstated, and no other connection standard that I have seen comes close. I have
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By
Dean Gibson AE7Q <yahoo@...>
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#420
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Re: UDR56K-4 current draw / fuse
* On 2013 15 Apr 13:37 -0500, k7udr wrote:
Elecraft is using Power Poles mounted to the RF board on the K3. I have
found them as connectors for batteries inside a UPS.
My experience with PP
* On 2013 15 Apr 13:37 -0500, k7udr wrote:
Elecraft is using Power Poles mounted to the RF board on the K3. I have
found them as connectors for batteries inside a UPS.
My experience with PP
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By
Nate Bargmann <n0nb@...>
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#419
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Re: UDR56K-4 current draw / fuse
E.F. Johnson used them for many years on their commercial land mobile radios in the 1980s and 1990s. Don't know if they still do or not.
Tom n7oep
Sent from my iPhone (I think)
E.F. Johnson used them for many years on their commercial land mobile radios in the 1980s and 1990s. Don't know if they still do or not.
Tom n7oep
Sent from my iPhone (I think)
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By
Tom Saunders <n7oep@...>
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#418
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Re: UDR56K-4 current draw / fuse
I note that no radio manufacturer uses power-poles nor do they appear in any automotive, marine, aviation or appliance applications that I am aware of. I have used them and the experience has been
I note that no radio manufacturer uses power-poles nor do they appear in any automotive, marine, aviation or appliance applications that I am aware of. I have used them and the experience has been
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By
"k7udr" <bhhoyer@...>
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#417
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Re: UDR56K-4 current draw / fuse
The cost is minimal, especially in bulk. They are not waterproof, but I don't remember reading that the UDR is waterproof, so the point is moot for this conversation.
You are totally right WRT
The cost is minimal, especially in bulk. They are not waterproof, but I don't remember reading that the UDR is waterproof, so the point is moot for this conversation.
You are totally right WRT
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By
"brad_ka3yan" <bradm75@...>
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#416
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Re: UDR56K-4 current draw / fuse
David's points are part of the reason that engineering chose to go with the RAST 5 solution. For those who use Anderson Pole connectors, the other end of the 2 meter cable can be mated with Anderson
David's points are part of the reason that engineering chose to go with the RAST 5 solution. For those who use Anderson Pole connectors, the other end of the 2 meter cable can be mated with Anderson
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By
"John D. Hays" <john@...>
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#414
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Re: UDR56K-4 current draw / fuse
I'm still playing the PP game, and all my equipment is converted over... but I find them to be frustrating for all the reasons you cite, and am considering switching to a more secure connection.
That
I'm still playing the PP game, and all my equipment is converted over... but I find them to be frustrating for all the reasons you cite, and am considering switching to a more secure connection.
That
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By
Tyrell Jentink <tyrell@...>
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#415
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Re: Photo of finished product.
Hi Perry,
The tooling for the cases has not been committed, so there is no final photo.
As I have said before, this is a pre-order for planning purposes. We will not be accepting dollar commitments
Hi Perry,
The tooling for the cases has not been committed, so there is no final photo.
As I have said before, this is a pre-order for planning purposes. We will not be accepting dollar commitments
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By
"k7udr" <bhhoyer@...>
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#413
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