listening to HF

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james rimmer

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Oct 11, 2017, 5:47:20 AM10/11/17
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Hi, i have installed 2.7 onto my mac running OSX 10.12.6 which seems to run fine. I can listen to stations above 26.5mhz without problem, however i want to listen to HF, 0-30Mhz. I thought to change the device string for direct sampling which did not work and assume this is wrong. What do i need to change, can you point me to the correct documentation for this?
Thanks
James

james rimmer

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Oct 11, 2017, 5:48:42 AM10/11/17
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Sorry, i should have noted that i am using a DVB dab and FM rtf usb tuner.

Simon Kennedy

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Oct 11, 2017, 6:41:56 AM10/11/17
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Hi James,

my understanding is that a hardware mod is required to enable direct sampling mode to work. See this link.

Alternatively use an upconverter, I built one using a 64MHz crystal from an old router and an NE602 based on this design but you can also buy them.

Regards
Simon. 

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james rimmer

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Oct 13, 2017, 5:42:47 AM10/13/17
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Thanks Simon.
This is beyond my current capability so perhaps at a later date.
Regards
James


On Wednesday, October 11, 2017 at 11:41:56 AM UTC+1, Simon Kennedy wrote:
Hi James,

my understanding is that a hardware mod is required to enable direct sampling mode to work. See this link.

Alternatively use an upconverter, I built one using a 64MHz crystal from an old router and an NE602 based on this design but you can also buy them.

Regards
Simon. 
On 11 October 2017 at 10:48, james rimmer <jamesri...@gmail.com> wrote:
Sorry, i should have noted that i am using a DVB dab and FM rtf usb tuner.

On Wednesday, October 11, 2017 at 10:47:20 AM UTC+1, james rimmer wrote:
Hi, i have installed 2.7 onto my mac running OSX 10.12.6 which seems to run fine. I can listen to stations above 26.5mhz without problem, however i want to listen to HF, 0-30Mhz. I thought to change the device string for direct sampling which did not work and assume this is wrong. What do i need to change, can you point me to the correct documentation for this?
Thanks
James

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