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QCX mini: RF output BNC or SMA
#poll-notice
Kind of like the "socket savers" we had on the tube testers back in the day. 73 Jim W4JED
Kind of like the "socket savers" we had on the tube testers back in the day. 73 Jim W4JED
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By
James Daldry W4JED
· #50940
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QCX mini: RF output BNC or SMA
#poll-notice
BNC rather than SMA, but my real preference is for the 'RF out' pad on the pcb and space on the case to fit whatever your choice of connector might be. Mind you, I'm still looking for the magic drill
BNC rather than SMA, but my real preference is for the 'RF out' pad on the pcb and space on the case to fit whatever your choice of connector might be. Mind you, I'm still looking for the magic drill
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By
Chris Wood
· #50939
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QCX mini: RF output BNC or SMA
#poll-notice
common practice with very expensive test gear costing many thousands or tens of thousands of dollars which use SMA connector is to use a "connector saver". A SMA connector saver is little more than a
common practice with very expensive test gear costing many thousands or tens of thousands of dollars which use SMA connector is to use a "connector saver". A SMA connector saver is little more than a
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By
Graham, VE3GTC
· #50935
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QCX mini: RF output BNC or SMA
#poll-notice
In my experience, it's much better to use a short SMA to BNC pigtail (out of high quality micro coax) if there is going to be any strain at all (and I do mean at all) on the BNC connector. This counts
In my experience, it's much better to use a short SMA to BNC pigtail (out of high quality micro coax) if there is going to be any strain at all (and I do mean at all) on the BNC connector. This counts
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By
namerati@...
· #50934
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QCX mini: RF output BNC or SMA
#poll-notice
SMA is a bit small and difficult in a portable setting. However, I very much prefer threaded connectors. BNC tends to be too "wiggly" and you can hear noise in the receiver by just bumping the cable.
SMA is a bit small and difficult in a portable setting. However, I very much prefer threaded connectors. BNC tends to be too "wiggly" and you can hear noise in the receiver by just bumping the cable.
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By
John AK4AT
· #50933
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QCX mini: RF output BNC or SMA
#poll-notice
The consensus at the NanoVNA group was that the "ideal" solution was the APC3.5 connector: https://www.maurymw.com/pdf/datasheets/5A-011.pdf Unfortunately this is not exactly cheap. Since professional
The consensus at the NanoVNA group was that the "ideal" solution was the APC3.5 connector: https://www.maurymw.com/pdf/datasheets/5A-011.pdf Unfortunately this is not exactly cheap. Since professional
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namerati@...
· #50932
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QCX mini: RF output BNC or SMA
#poll-notice
All, The life cycle mating on SMA is for the full frequncy range, plus mechanical wear aspects. At HF frequencies, the wear cycles should be greater than for the microwave frequencies. That said, SMA
All, The life cycle mating on SMA is for the full frequncy range, plus mechanical wear aspects. At HF frequencies, the wear cycles should be greater than for the microwave frequencies. That said, SMA
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By
...
· #50930
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QCX mini: RF output BNC or SMA
#poll-notice
I like that idea!
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George Korper
· #50928
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QCX mini: RF output BNC or SMA
#poll-notice
I fully expect I'm in a group of one. But especially as the QCX was first requested and now being offered as field optimised....... Imagine the gods gave were kind hearing the rarest of rare DX statio
I fully expect I'm in a group of one. But especially as the QCX was first requested and now being offered as field optimised....... Imagine the gods gave were kind hearing the rarest of rare DX statio
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By
Alan de G1FXB
· #50927
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QCX mini: RF output BNC or SMA
#poll-notice
Hi All, I have had long term reliability problems with BNC connectors. So much so that I have converted most stuff to either real screw terminals or simple soldered connections. Clamp type 'screw' ter
Hi All, I have had long term reliability problems with BNC connectors. So much so that I have converted most stuff to either real screw terminals or simple soldered connections. Clamp type 'screw' ter
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By
jmh6@...
· #50926
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QCX mini: RF output BNC or SMA
#poll-notice
OK. I am thinking the longer BNC with the threads could be substituted with one that is shorter and needs no nut and lock washer. Democracy is all about arriving at the best solutions...hee hee. It ma
OK. I am thinking the longer BNC with the threads could be substituted with one that is shorter and needs no nut and lock washer. Democracy is all about arriving at the best solutions...hee hee. It ma
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By
George Korper
· #50924
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QCX mini: RF output BNC or SMA
#poll-notice
SMA connectors are nice and cute on small rigs but BNC are far easier to use with fat fingers. Also how many have actually ever made up SMA cables and adapter cables? It’s pretty tough and much harder
SMA connectors are nice and cute on small rigs but BNC are far easier to use with fat fingers. Also how many have actually ever made up SMA cables and adapter cables? It’s pretty tough and much harder
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By
Skip Davis
· #50923
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QCX mini: RF output BNC or SMA
#poll-notice
Shorter BNC is the same. How reliable they are for its connection to the board is unknown as all the systems used a variant that locked to the chassis. for mechanical support. I do not see the problem
Shorter BNC is the same. How reliable they are for its connection to the board is unknown as all the systems used a variant that locked to the chassis. for mechanical support. I do not see the problem
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By
ajparent1/KB1GMX
· #50919
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QCX mini: RF output BNC or SMA
#poll-notice
Maybe something like these are a little better/sturdier: https://www.knjn.com/ShopFlashyWidyAccessories.html (don't know Jean source tough) Definitely SMA are not the best if you need many connect/dis
Maybe something like these are a little better/sturdier: https://www.knjn.com/ShopFlashyWidyAccessories.html (don't know Jean source tough) Definitely SMA are not the best if you need many connect/dis
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By
Giuseppe Marullo
· #50918
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QCX mini: RF output BNC or SMA
#poll-notice
Agree with Allison. The extra length of the plastic gets snaggy when putting a radio in a bag. If you look at a QCX the long BNC is ridiculous. So I ask Allison if the shorter BNC is reliable.
Agree with Allison. The extra length of the plastic gets snaggy when putting a radio in a bag. If you look at a QCX the long BNC is ridiculous. So I ask Allison if the shorter BNC is reliable.
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By
George Korper
· #50917
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QCX mini: RF output BNC or SMA
#poll-notice
SMA for size. BNC for durability and less fiddly when up on a hill with cold hands. Note some of the PCB edge mount BNC may provide a lower profile. Allison ------------------------------- Please repl
SMA for size. BNC for durability and less fiddly when up on a hill with cold hands. Note some of the PCB edge mount BNC may provide a lower profile. Allison ------------------------------- Please repl
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By
ajparent1/KB1GMX
· #50915
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QCX mini: RF output BNC or SMA
#poll-notice
Regardless of the connector used, I would likely not mount it on the PCB even if the board provides for it. Off-board mounting, to me, gives me more flexibility in the case I might use. My problem is
Regardless of the connector used, I would likely not mount it on the PCB even if the board provides for it. Off-board mounting, to me, gives me more flexibility in the case I might use. My problem is
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By
jjpurdum
· #50912
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QCX mini: RF output BNC or SMA
#poll-notice
Hi, I have a nanoVNA with SMA fittings. The early deterioration most likely affects their performance in the microwaves. I use mine at HF and may use it some day a time or two on two meters but probab
Hi, I have a nanoVNA with SMA fittings. The early deterioration most likely affects their performance in the microwaves. I use mine at HF and may use it some day a time or two on two meters but probab
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By
Bill Cromwell
· #50910
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QCX mini: RF output BNC or SMA
#poll-notice
Please, no. Those give me nightmares. Too many cases of them either not staying in or refusing to come out.
Please, no. Those give me nightmares. Too many cases of them either not staying in or refusing to come out.
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By
Shirley Dulcey KE1L
· #50909
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QCX mini: RF output BNC or SMA
#poll-notice
What about RCA connectors?
What about RCA connectors?
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By
Phil/K3UT
· #50908
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