Lets close this thread - we are -way- past the max posting number limit for a
single topic.
Folks - I am not always able to watch the list in real time. Please self limit
on OT discussions like this. Once you hit 5-10 emails (at most) please take it
off list. You do not need to wait for me to
No, BNC's and N's do not inter-mate, not without damage.
Yes, you can push a N plug into a BNC socket, but the BNC socket will be
permanently damaged if you push hard enough for it not to fall out
unexpectedly. Plus the mismatch will be bad. But in an emergency?
Yes, the dimensions of the
> On Sep 19, 2018, at 7:24 AM, hawley, charles j jr
> wrote:
>
> As I remember, the bnc and n actually plug together. What then is the benefit
> of n? Water resistance?
>
> Chuck Jack
> KE9UW
Type N is weatherproof, BNC is not.
Type N peak voltage is 1500 V, BNC is 500 V (UHF is also 500
mble them correctly and look after them
>> physically, and they will last a lifetime.
>>
>> The UHF series are just plain unreliable. It is no surprise that the
>> military (NATO) don't use them any more.
>>
>> 73.
>>
>> Dave G0WBX (also G8KBV)
>&
-
>> On 18/09/18 19:45, elecraft-requ...@mailman.qth.net wrote:
>> Message: 1
>> Date: Mon, 17 Sep 2018 16:45:10 -0700
>> From: Walter Underwood
>> To: "elecraft@mailman.qth.net"
>> Subject: Re: [Elecraft] loss of RX sensitivity
>> Message-I
also G8KBV)
On 18/09/18 19:45, elecraft-requ...@mailman.qth.net wrote:
> Message: 1
> Date: Mon, 17 Sep 2018 16:45:10 -0700
> From: Walter Underwood
> To: "elecraft@mailman.qth.net"
> Subject: Re
...@triconet.org]
Sent: Tuesday, September 18, 2018 12:51 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] loss of RX sensitivity
It's difficult to argue with Frank's experience and expertise. That said, fools
rush in...
I own some network analyzers, 1) an N2PK which I built with type N
Hi Frank,
Agreed.
See: https://www.sdr-kits.net/VA5_Page bottom of the page. Indicative prices in
USD $191.77
Wes
On 9/18/2018 1:53 PM, donov...@starpower.net wrote:
Hi Wes,
Thanks for forwarding the information about DG5MK's new FA-VA5
VNA. What is its current selling price?
If you
esn't
> maintain sufficient engagement force to keep the RF connections
> in proper alignment.
>
>
> 73
> Frank
> W3LPL
>
>
>
>
> - Original Message -
>
> From: "Wes Stewart"
> To: elecraft@mailman.qth.net
> Sent: Tu
On 9/18/2018 1:53 PM, donov...@starpower.net wrote:
What is its current selling price?
Frank,
I believe it's under $200. https://www.sdr-kits.net/VA5_Page
73, Jim
__
Elecraft mailing list
Home:
t: Tuesday, September 18, 2018 5:51:45 PM
Subject: Re: [Elecraft] loss of RX sensitivity
It's difficult to argue with Frank's experience and expertise. That said, fools
rush in...
I own some network analyzers, 1) an N2PK which I built with type N connectors,
2) a DG8SAQ VNWA-3, supplied with SMA
It's difficult to argue with Frank's experience and expertise. That said, fools
rush in...
I own some network analyzers, 1) an N2PK which I built with type N connectors,
2) a DG8SAQ VNWA-3, supplied with SMA connectors and 3) a RigExpert AA-55 Zoom
with a SO239. Professionally, I've used
Captivated pin N connectors completely resolve the problem of the
center pin pulling back in cold weather.
73
Frank
W3LPL
- Original Message -
From: "Dr. William J. Schmidt"
To: "Elecraft Reflector"
Sent: Tuesday, September 18, 2018 3:29:41 PM
Subject:
[[The next time someone challenges me on why I only use BNC and Type N
connectors, I’m going to send them this entire discussion.]]
Unfortunately this is not perfect either. If you use an "N" connector on long
runs of heliax in a cold climate, you must be aware that the coefficients of
Trouble is I have to put adapters on the equipment and then go to bnc
Chuck Jack
KE9UW
Sent from my iPhone, cjack
> On Sep 17, 2018, at 6:46 PM, Walter Underwood wrote:
>
> The next time someone challenges me on why I only use BNC and Type N
> connectors, I’m going to send them this
2018 11:45:10 PM
Subject: Re: [Elecraft] loss of RX sensitivity
The next time someone challenges me on why I only use BNC and Type N
connectors, I’m going to send them this entire discussion.
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
> On Sep 17,
Pretty much my point made in another post.
In fact, I often take a perverse view of these situations and ask myself, "Self,
if you wanted to screw these two things together without the faces touching, how
difficult would it be to do?" And of course the answer is, almost impossible.
Wes
This is one of those, "it depends" situations. Depending on the location of the
two center conductor insulators in the plug and socket, the serrated (toothed)
surface of the female connector might well contact the mating plug surface, if
there is a gap between the insulators. In fact the
The next time someone challenges me on why I only use BNC and Type N
connectors, I’m going to send them this entire discussion.
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
> On Sep 17, 2018, at 4:41 PM, Don Wilhelm wrote:
>
> Andy,
>
> The PL259 to SO239
Andy,
The PL259 to SO239 connector "end face" contact is provided only by
pressure - it is not a sliding contact as you would find in a BNC or an
N connector. The pressure is provided only by the tightening of the
threaded portion of the PL259.
I ask you - just how much resistance can be
" the threads of the PL259 are providing the only contact with the SO239"
In the connectors that you are mating how do you prevent contact between the
end face of the PL259 body and the end face of the SO239 body? You would need
an insulating spacer for your statement to be true.
73,
Andy
Chuck,
That is true, but is ignoring the fact that the threads of the PL259 are
providing the only contact with the SO239. They must be solidly tight
for reliable conductivity to the shield of the coax. All contact from
the SO239 to the coax shield is by pressure contact. Finger tight may
Motorcycles
From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on
behalf of Jim Brown [j...@audiosystemsgroup.com]
Sent: Monday, September 17, 2018 2:44 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] loss of RX sensitivity
On 9/17
Yes, regardless of how good they look, always snug the PL-259 with a small pair
of Channel Lock pliers. Finger tight is not good enough. Many of our
connectors today are of inferior quality.
Also due to the use of jumpers, the flexing and pulling is prone to damage the
connection between
On 9/17/2018 9:20 AM, Drew AF2Z wrote:
Note that there is no electrical connection through the threads on the
plug body and the threads on the shell; these threads are merely a
stop to keep the shell from sliding down the cable when not connected
to the SO-239 on the equipment.
This is
Real easy to see on a spectrum analyzer with a tracking generator. The
trace goes wild as soon as you start turning the PL-259 connector by hand
(please don't use pliers on your SA).
73, Ian N8IK
On Mon, Sep 17, 2018 at 12:59 PM, Don Wilhelm
wrote:
> Drew and all,
>
> I beg to differ, unless
Drew and all,
I beg to differ, unless you meant something different than I read.
The threads on a PL-259 connector are the only thing that connects the
coax shield to the SO-239 jack.
That is why hand tightening of PL-259 connectors is not sufficient. Use
pliers to snug them up just a bit
I used that trick to keep my DSL line running for a couple of years when
Verizon was abandoning copper and no longer interested in doing
maintenance. Placing a resistor across the telephone line would draw a
constant small current, not enough to off-hook the line but enough to
"seal" the poor
Reminds me of having to blow on the contacts in a Nintendo game cartridge
to make it work in the console. ;)
On Mon, Sep 17, 2018 at 7:31 AM rich hurd WC3T wrote:
> I guess that’s the electronic equivalent of blowing through a tube to clear
> the blockage. :)
>
> On Mon, Sep 17, 2018 at 01:44
I guess that’s the electronic equivalent of blowing through a tube to clear
the blockage. :)
On Mon, Sep 17, 2018 at 01:44 Frederick Dwight wrote:
> Scott,
> The problem you describe is actually quite common in electronics. In
> the telephone industry, especially in the “good old days”
Scott,
The problem you describe is actually quite common in electronics. In the
telephone industry, especially in the “good old days” with wire cables,
sometimes with many splices it was common to get drop outs. These could be due
to a splice, wire wrap connection, oxidized relay contact
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