Re: New CP1

[Eric Swartz - WA6HHQ]

Absolutely! We'll have all of our Mini-modules in stock at Pacificon this weekend.
73, Eric

Eric
_..._

-----Original Message-----
From: Doug Faunt N6TQS <[hidden email]>
Date: Tuesday, Oct 11, 2005 3:51 pm
Subject: Re: [Elecraft] New CP1 Directional Coupler and BL2 250W 1:1/4:1
        switchable Balun

Hi Eric,
Is there going to be a stock of the Mini-module kits at Pacificon?

73, doug

 

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[dj7mgq]

Hi Eric et al,

I wonder whether it is a good idea to use BNC on equipment which is
designed for 100 watt and higher power levels.

It might be a good idea to offer a variant of these kits with PL
and/or N connectors ???

vy 73 de toby
--
DD5FZ (ex dj7mgq, dg5mgq, dd5fz)
K2 #885, K2/100 #3248
DOK C12, BCC, DL-QRP-AG
 

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[Eric Swartz - WA6HHQ]

Hi Toby,

The BNCs can easily handle 250 W. Actually they can easily handle 1500W
:-) In cases where I need a PL259 or SO-239 on the other end I use a BNC
adapter or cable.

Also, they do not make PCB mount versions of PL and N connectors that
fit our application.

73, Eric
====

Toby Deinhardt wrote:

> I wonder whether it is a good idea to use BNC on equipment which is
> designed for 100 watt and higher power levels.
>
> It might be a good idea to offer a variant of these kits with PL
> and/or N connectors ???

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[Mark J. Schreiner]

RF-wise an N-type and BNC-type connector are actually very similar.  The
differences are basically in the outer shell for mechanical connection.  
To see how similar they are try this:

Take a BNC-Female and slide it into an N-Male connector.  Nice tight
fit, except of course it doesn't actually mechanically stay together.  
Also, if you had a BNC-Male connector without the bayonette outer part
that turns it would slide into an N-Female connector and would be a
pretty good mate as well.  Also, I think an N-type connector is supposed
to be quite weather-resistant (although I would always wrap one up to
make it more weatherproof, however I don't think a BNC is
weather-resistant without significant efforts to add weatherproofing.

Somewhere I'd have to look for mechanical drawings of the N & BNC, but
I'm sure they important parts, that is the pin or socket sizes are
equivalent as well as the shield diameter parts.

73,

Mark, NK8Q
K2 4786

Eric Swartz - WA6HHQ, Elecraft wrote:

> Hi Toby,
>
> The BNCs can easily handle 250 W. Actually they can easily handle 1500W
> :-) In cases where I need a PL259 or SO-239 on the other end I use a BNC
> adapter or cable.
>
> Also, they do not make PCB mount versions of PL and N connectors that
> fit our application.
>
> 73, Eric
> ====
>
> Toby Deinhardt wrote:
>
>> I wonder whether it is a good idea to use BNC on equipment which is
>> designed for 100 watt and higher power levels.
>>
>> It might be a good idea to offer a variant of these kits with PL
>> and/or N connectors ???
>
>
> _______________________________________________
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> You must be a subscriber to post to the list.
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>

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[Timothy A. Raymer]

The N of the N connector is the initial of the same person as the
initial in the BNC connector.

http://www.microwaves101.com/encyclopedia/connectors.cfm

http://en.wikipedia.org/wiki/BNC_connector

are two examples of sites with information on the naming.  Paul Neill
is the "N" namesake.  The other initials are up for serious debate.

The usual limiting factor is the diameter of the conductors bringing
the RF to the connector, and to some extent the diameter of the
center pin of the connector.  They are used in the Microwave radar
world with much higher pulse ratings than 1500W, but the "average
power" would be much lower.

Tim Raymer


At 20:22 10/12/2005, [hidden email] wrote:
>RF-wise an N-type and BNC-type connector are actually very
>similar.  The differences are basically in the outer shell for
>mechanical connection.
>To see how similar they are try this:

Timothy A. Raymer
Missouri Department of Health
and Senior Services

<traymer[at]mail.state.mo.us>                        <RaymeT[at]dhss.mo.gov>
<KA0OUV[at]arrl.net>

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