[hpsdr] VNA kit -- parts for reflection bridge for use with Hermes

[David McQuate]

Hi John,
   Yes, my available time for ham radio activities seemed to take a 
continuous long slide downward, and will likely stay very low for some 
months.
Jim Piccirillo WA1NBS (jpiccirillo at greenwaldindustries.com) said he 
would like to "pick up the ball".  I sent him some of the information I 
had gathered as of feb 22.  Maybe he can comment on his progress.

73,
Dave

On 3/22/2013 7:40 PM, John Marvin wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> It's been 4 months and I was curious if there was any progress in 
> getting this kit together. I tried mailing David directly a few weeks 
> back but did not get a response. Has anyone else heard anything? I 
> really appreciate the initial work he did to get this going, and can 
> understand if life got in the way, but I'd just like to know if 
> progress is being made, and whether another alternative should be 
> pursued.
>
> Thanks,
>
> John
> AC0ZG
>
> If doing the pc board is the bott
>
> On 11/12/2012 10:35 AM, David McQuate wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> RG-178 is OD 0.072 inch, RG-316 OD is 0.102 inch.
>> The wireman says his RG-178B/U is mil-spec, ptfe dielectric, class 9 
>> teflon jacket, silvered copper shield.
>>
>> On 11/12/2012 4:39 AM, Tim O'Rourke wrote:
>>> ***** High Performance Software Defined Radio Discussion List *****
>>>
>>> Is that teflon mil spec 316?
>>> If so easily available.
>>> Tim
>>>
>>>
>>> -----Original Message-----
>>>> From: Bruce Beford<bruce.beford at myfairpoint.net>
>>>> Sent: Nov 12, 2012 6:27 AM
>>>> To: hpsdr at lists.openhpsdr.org
>>>> Subject: Re: [hpsdr] VNA kit -- parts for reflection bridge for use 
>>>> with    Hermes
>>>>
>>>> ***** High Performance Software Defined Radio Discussion List *****
>>>>
>>>> Dave,
>>>> Thanks very much for moving ahead with this project, and your 
>>>> willingness to
>>>> hash out the details. For myself, I see no problem with a longer 
>>>> lead time.
>>>> This is especially true if the proven design of two boards/brass 
>>>> shim stock
>>>> is to be changed. It would be good to build and test a prototype 
>>>> (or 2) to
>>>> prove the performance of a single-board version of the 3 bead 
>>>> reflection
>>>> bridge.
>>>>
>>>> I also note that Sam used some high quality RG-178 (teflon?) in his 
>>>> design.
>>>> I don't know what the material from the wireman is like.
>>>>
>>>> In any event, count me in!
>>>> 73 es GL,
>>>> Bruce, N1RX
>>>>
>>>>
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>>> Tim O'Rourke
>>> W4YN at ARRL.Net
>>> Low Power Amateur Radio Rocks
>>> Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
>>> NHRA Life Member
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>>
>
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-- 
Clear Stream Technologies

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