Nate,
Thanks for the info, I have 4 or 5 clean 4076s that won't go below 444/449
and still look good separation wise. I had made a call about 6 months ago
and was told the cables were all the same but the loops are slightly longer
on ones spec'd in the ham band. (wonder were those notes are
Hi Howard,
I see you've had several responses in addition to mine.
If you're still on the hunt, I have a couple of VHF Station Master
type antennas available which I'll probably have for sale in the flea
market at Dayton. The fiberglass is in great shape on them; you could
replace the guts with
At 4/12/2008 01:54, you wrote:
By experimenting we found cable lengths for the tee that gave the
right picture on the HP service monitor. They ended up being slightly
longer than the original cables.
The individual halves of the duplexer (two cans, each side, one high-
pass, one low-pass) looked
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED]
wrote:
http://gigaom.com/2007/03/14/700mhz-explained/
enjoy,
s.
Something's wrong here...
I read the origional Congressional Law, written by non communications
people, where 700 Mhz was to become the overflow
[EMAIL PROTECTED] wrote:]
Hank sent me a couple of barrel connectors made by PD that
I've never seen before or since.
They are UHF on one end of the barrel and Type N on the
other end and Hank insisted that the connector produced
no VSWR bumps up to 500-Mhz.
... and they're still
Another cute low cost coax trick is the center insulation
material. If you have a choice... I would tell you go out
of your way to ensure the center material is not the soft
foam type insulator ... which has also been another nightmare
generator for me.
cheers,
s.
Eric Lemmon [EMAIL
The adapter you describe is the military UG-83B/U, which RF Industries makes
as RFN-1036-1. Actually, the RFN-1036-1 is better than the military part,
because it is silver-plated with a gold-plated center contact and Teflon
dielectric. It is available from RF Parts, Tessco, Talley, and Hutton
The discussion of RG-214/U coaxial cable prompted me to take a look at the
current military specifications, and I was surprised to note that a new
version of RG-214/U cable has arrived. This new version has a one-mil thick
polyester tape with an aluminum coating that wraps around the outer
Well said Nate!
I rarely respond to these type of things but couldn't control the urge
this time.
As anyone who monitors this list knows Eric provides a wealth of
information and in a very professional manner.
I for one read almost every reply that Eric sends as I have found his
information
On Fri, 11 Apr 2008, skipp025 wrote:
http://gigaom.com/2007/03/14/700mhz-explained/
I still prefer Albert Einstien's explaination of wireless.
--
Kris Kirby, KE4AHR [EMAIL PROTECTED]
But remember, with no superpowers comes no responsibility.
--rly
Eric,
Thanks for doing that research
I see a cable spec MIL-C-17/75G in my latest suppliers catalogue. Is this the
new cable to which you refer?
Also have you seen any information on connectors for this new cable.
Specifically, do you remove the foil before crimping the braid ?
Ian
G8PWE
Ian,
That information is a surprise, because the current listing shows
MIL-C-17/75F, here:
www.dscc.dla.mil/Programs/MilSpec/listdocs.asp?BasicDoc=MIL-DTL-17
No, the MIL-C-17/75F (or 75G, if it indeed exists) are RG-214/U designs.
The new cable with the foil-backed polyester layer is identified
I wonder if the folks at Times Wire had something to
do with it? Aren't they the ones that make LMR* cable
that's so good for outdoor repeater runs?
I bet their stuff couldn't hack it under the old spec
the way true RG214 could.
Bob M.
==
--- Eric Lemmon [EMAIL PROTECTED] wrote:
Here is an interesting item for the WP 642 duplexers. The existing
coax between the cans I was asking about is marked WACOM PRODUCTS RG
213U DOUBLE SHIELD. 213 not a typo.
Dail
N6DGT
HELP! Does anyone have access to the manual for this beast? Our club
has acquired one without a manual.
73 .. Bill
VE5FN
Eric,
Again thanks for your splendid research.
Looking through the old and new RG214 spec it looks like the Aluminium foil was
inserted to improve vertical flame performance.
The foil is in the RF cold area behind the 2 shields, however Im sure there are
instances where this foil will corrode
I guess they used different suppliers at different times. The cables I got
with the 641s 642s I got from Wacom all say: WACOM PRODUCTS MODIFIED RG-214
DOUBLE SHIELDED. As I mentioned
previously, Lloyd Alcorn felt that silver plated shields involved a cost
increment without any
I am going to sell my bench service monitor. It is in excellent shape and
has the factory bag with it. I am going to place it on Ebay if anyone here
on the list is not interested. Please contact me off the list regarding the
monitor.
Thanks,
Mike Mullarkey (K7PFJ)
Classification: UNCLASSIFIED
Caveats: NONE
Greetings,
I'm sure by now I've made enough noise that most of you know I'm working
on a the analog cell phone to Amateur 33cm. Well now it has reached the
point where one can choose the way he does things, and I'm going to
tackle both. The first
At 4/12/2008 14:03, you wrote:
Eric,
Again thanks for your splendid research.
Looking through the old and new RG214 spec it looks like the Aluminium
foil was inserted to improve vertical flame performance.
The foil is in the RF cold area behind the 2 shields, however Im sure
there are
I do. Contact direct
K.Paul Boggs.
[EMAIL PROTECTED]
Mountain Emergency Communications
- Original Message -
From: ve5fn
To: Repeater-Builder@yahoogroups.com
Sent: 4/12/2008 1:50:23 PM
Subject: [Repeater-Builder] Zetron model 30 interconnect
HELP! Does anyone have access to the
After a day of work putting together and putting up a DB224E in the 138-150
range I found the thing to be resonate at 150 MHZ center. After a few
colorful metaphors, I find I turned one of the elements upside down with the
feed at the bottom. Would this be enough to throw the antenna off balance
Randy,
I have been down that road myself, so I feel your pain! Unless you are
willing to let this one incident haunt you for the rest of your life, you
should fix the problem now. And yes, one element fed out-of-phase will
screw up the pattern.
Look at the bright side: Fresh air, good
Greetings,
Im sure by now Ive made enough noise that most of you know Im working on
a the analog cell phone to Amateur 33cm. Well now it has reached the point
where one can choose the way he does things, and Im going to tackle both. The
first one, performing most RF tasks by old
To me, I wouldn't have expected it to have thrown things that far out of whack
- except for what it's doing to the pattern. But these things can fool you. Is
it top mounted or side mounted? Configuration - omni or other? Any guy wires
near it?
In any event, report back with results after you
I am looking for a GE Mastr ll Repeater cabinet key.
Have one extra you can get rid of? Contact me off list.
Thank you.
Rod kc7vqr
Has anyone ever seen one of these. I aquired one, it has what looks
like a rangr UHF radio with a sinclair duplexer on the same case a
powere supply (120v and 12v) a 990 control head and one missing
component. I dont know what is missing and havent had any luck finding
info on it. It was a
I thought all the elements were fed in phase...
Joe M.
Eric Lemmon wrote:
And yes, one element fed out-of-phase will screw up the pattern.
gentlemen:
I am looking for a copy of the operation and / or
servie manual for the 2210b service monitor.
finally got it back from repair and not having
the book is kinda frustrating. it has alo tof
stuph i can't work out by simply playing with the
thing.
if someone has a manual I will pay to
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