[NLRS] 10 GHZ

Sun, 10 Aug 2003 13:40:23 -0400

Ray,

I'm assembling a 10GHz station here in Rochester, NY with the help of 
several locals.  I went with the N-to-WR90 for the sake of durability. 
 Since this is mainly a portable setup which I'll be puting the the 
suitcase from trips back to Nebraska, I wanted something I wasn't likely 
to break from stressing it too much.  Afterall, I will have to 
disassemble the dish from the arm to make it fit in the bag.  My plan 
right now is to have the DEMI xvtr, amp, and all the 
switching/sequencing stuff inside one box--UT141 internally, and 12V, 
IF, and antenna connectors to the outside world.  I'm going with 
N-connectors just beacause I have a feeling that I would break a 
connection on the SMA connectors at a critical time--like when I'm 
freezing my buns off this December trying work you guys from some lonely 
cornfield.

Like Don says, if you have some choice pieces of semi-rigid coax, 
there's no sense in buying new stuff to change the connectors.  Folks 
around here seem to be successful using whatever they got their hands on 
the cheapest, at least on 10 GHz..

Andy K0SM/2

Baker, Donn B wrote:

>Hi Ray,
>I think its largly what you have, and what your equipment has.  Most of the
>newer stuff (DEMI & DB6NT XVRTRS) have SMA.  Older gear tends to have N
>connectors.  W0ZQ is having very good success with N-connectors and LMR400
>for 24" or so of feedline.  Hard to put SMAs on "RG-8" ! I think he said he
>had measured 0.7 dB loss.  UT-141 can be good and VERY bad.  I think I'm
>having a problem with one of my UT-141 cables... w/maybe 3+ dB loss in 6-7"
>of cable.
>
>Digi-key has SMA (male) connectors at a reasonable price.  They are just a
>nut and collar.  You use the UT-141 as the center connector.  Make good
>cables.  (Don't remember the part number off-hand.  I'll look it up.)
>
>73 Donn
>WA2VOI/0
>
>PS Will you be on for the September portion of the 10GHz Contest ?  There
>won't too many folks around town next weekend... many of us will be around
>Lake Superior.
>
>
>
>
>
>>-----Original Message-----
>>From: Ray J [mailto:[email protected]]
>>Sent: Sunday, August 10, 2003 11:55 AM
>>To: [email protected]
>>Subject: [NLRS] 10 GHZ
>>
>>
>>
>>
>> Hello
>>I am looking at some waveguide to coax adapters. do I want SMA or N?
>>Does it make a big difference?  I have some male N connectors for ut141
>>but don't have much sma stuff around..
>>
>>Thanks...
>>
>>W9RAY
>>EN44
>>
>>
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