[HCARC] Field Day Antennas

Fri Jun 6 10:03:24 EDT 2014

In this case do we want to possibly buy RG-8X vs RG-8U that was approved or 
maybe LMR-240??  I agree with Fred that we might want to change out the 
station coax as it is quite possible that we will be having more and more 
Field Days at the Red Cross in the future - air conditioning is mighty 
attractive in Texas.  A kitchen being handy is great too and we don't have 
to go and import tables and chairs, nor pay for the space to have it.

Robert Russell, Hank Folk and I have had excellent results with the Shireen 
RFC-400 we bought and their prices on the other cables are excellent too. 
It's possible to get RFC-240 for less than RG-8X.  I can get the Shireen 
RFC-240 ultraflex for 55 cents a foot in a spool of 250 feet and the regular 
RFC-240 in 1000 foot spools for approx 31.7 cents per foot.  I have said for 
a long time that the club should have a stock of the common items people 
need such as Coax, PL-259's, SO-239's so we can buy them at bulk prices and 
sell them to club members at a small profit, but still less than ordering 
them by the One each and paying shipping over and over each time.  It is 
shipping that kills you in a place like Kerrville.  I can get Amphenol 
Pl-259's including shipping for about $2.00 each if bought in groups of 10, 
where they are $3.50 if bought singly and the shipping cost is about the 
same.  Why not help out club members as well as having the connector/coax in 
stock when we need it for a repair or in an emergency???

Here is a link to Shireen and their products so you can check them out for 
yourselves:  http://www.shireeninc.com/low-loss-rf-coax-cables-uv-rated/ 
The company is located in Germantown, MD and supplies to much of industry 
and they guarantee their Coax to meet or beat any of the others.

I can have the coax here within a week.

Gary J
N5BAA

-----Original Message----- 
From: Harvey N. Vordenbaum
Sent: Friday, June 6, 2014 7:43 AM
To: 'Kerry Sandstrom'
Cc: hcarc at mailman.qth.net
Subject: Re: [HCARC] Field Day Antennas

Due to the limitations of the building feed through conduit we only have a
few coax's (RG-8's) available.
The HF antennas are combined outside by a remote coax switch box.  There is
one spare feed through cable however.
There are separate coax's for the 2M and 2M/.7M antennas.
Fred has an idea of replacing all the present RG-8's with RG-8X cable thus
gaining a few more lines passing through. Someone could make a calculation
about how many lines would be gained. Making this change would not be easy,
however and time is getting short.
For field day we may have to pass coax through the partially opened window,
but then you wouldn't want a generator running nearby.

-----Original Message-----
From: HCARC [mailto:hcarc-bounces at mailman.qth.net] On Behalf Of Kerry
Sandstrom
Sent: Thursday, June 05, 2014 10:07 PM
To: Gary J - N5BAA; hcarc at mailman.qth.net
Subject: [HCARC] Field Day Antennas

Gary,

You may only need to put an antenna up for the GOTA station across the
street.  Questions you need to answer are:
         1.  Do the existing 40 and 80 m dipoles have separate transmission
lines?
         2. Can you operate one transceiver on the 20/15/10 Vertical and
another on the dipoles simultaneously?
         3. If the answer to 1 is yes, can you operate with one transceiver
on 80m and another on 40 m simultaneously?
         4. Is operation even permitted on 30/17/12 m for field day, if not
you don't need any WARC antennas?

If you can operate on 80 and/or 40 simultaneously with 20/15/10, then that
is probably all you need.  You won't be able to operate two stations on any
single band even with separate antennas behind the RC Building.  I suggest
that if you really don't need to add any more antennas you shouldn't.

You should check out all the antennas and transmission lines that are a
permanent part of the station a couple weeks ahead of time in case you need
to make any repairs.

If you are operating as 2 or 3F (why not 4F!!) then I don't think setup time
is even a factor since the station is ostensibly part of a "permanent"
emergency fascility.

Kerry

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