Larry:
I use an NHRC MVP controller on my 440 repeater. It has been in service for
years without any problems
73
Gregg
Ps Renee say hi
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com]on Behalf Of
larryjspamme...@teleport.com
I don't have much experience with repeaters and tuning of the same but I would
like to know how to tune mine to a fine reception, I do know a bit (not an
expert) in how to work around the program CE27 but I don't have a clue in how
to get a fine tune to the receiver, If anybody could help me
Extend the radials not less than 1/4 wave from the mast stub to the tip. And
bend them down at about a 30 degree angle. Lone
ger radials probably wouldn't hurt (in 1/4 wave increments) but provides more
wind load and aesthectic challenges. $ equally space might be slightly better
Hello All:
Hope some one can help me. I am cleaning out the grauge of a silenet key
and come accross a vertical antenna. I could find NO name or manual for this
antenna. All I can find are 4 trapes 7 to 28 mhz. a label on the traps state
Daiyamond. Any ideas.
Thanks in advance
Ray Rosler
Sent to me by an acquaintance... I merely repost it in case someone in CA
or elsewhere near the left coast might be looking for a clean MICOR VHF
repeater. Be aware -- it is an SP model, and is currently on 169/172 MHz.
Disclaimer: I have no pecuniary interest in this auction.
Item number:
Is it brand name : Diamond from Japan ?
Model : CP-5 ?
73s! de VR2XVD /W.L.Ho
On 3/28/09, Ray Rosler ro...@sasktel.net wrote:
Hello All:
Hope some one can help me. I am cleaning out the grauge of a silenet
key and come accross a vertical antenna. I could find NO name or manual for
Hi all
is the CP-5 still on sale ??today
from diamond
73/s
gervais ve2ckn
From: vr2 xvd
Sent: Saturday, March 28, 2009 10:56 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Vertical Antenna
Is it brand name : Diamond from Japan ?
Model : CP-5 ?
73s! de VR2XVD
If the elements are flat (not tubing), then it's a DB410. They stopped
making them probably in the early 80's?
--- Jeff
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of k5in
Hi Jeff,
Yes, the elements are flat.
There is one feed point at the bottom with the wiring going up the outside of
the mast.
Mast is 12ft in length, with a manufacturers cap on the top.
Thhanks for the information: I will now do some research on that model number.
Brian
-
Hello to the group.
I just programmed my 630 for the Ten Meter Band using the SP Tune feature.
Before I got a chance to tune the VCO/PLL TC51, 52 PLL lock voltage, the unit
went into transmit. When it does come out of TX for a few seconds, it shows
BUSY. I have tried to touch the the PLL but it
gebhardstephen wrote:
I am pretty sure HD has aluminum strips that will work just fine.
Should I make the radials 1/4 wave , or longer?
About 10% longer.
My first Db was a 410 in the same time period. It had tubular di-poles and
tubular stand-off's, not the stamp sheet type now used. It had 8 pairs of
di-poles (16 total) and was on a 2 section mast the same as the current DB-420.
I don't know what has only 6 di-poles an a 12' mast unless it
Just for the trivia,
Installing a VHF base station using a brand new RFS Cellwave
Omni Antenna. The label says the antenna is now made in Denmark.
Appears to be very well made... just interesting to learn it
was made in Denmark.
cheers,
s.
I would have guessed that they went to tubing earlier than the 80's, but my
earliest Decibel antenna was around 1978-81 (they used tubing), so I can't say
with any certainty.
Chuck
WB2EDV
- Original Message -
From: Jeff DePolo
To: Repeater-Builder@yahoogroups.com
You may be right, could have been late 70's. I don't have any DB catalogs
old enough to show the 410's. They may have continued to make the
flat-stock 410's for a few years after they introduced the current line of
tubing-stock element antennas (408, 420, 411, 413, etc.), not sure. I've
only
But the feed harness would be a bit more difficult for 6 pairs (or 6 single
elements).
And, the original post indicated he had an antenna that had 6 single
elements, I believe.
Chuck
WB2EDV
- Original Message -
From: Jeff DePolo j...@broadsci.com
To:
--- In Repeater-Builder@yahoogroups.com, Jeff DePolo j...@... wrote:
If the elements are flat (not tubing), then it's a DB410. They stopped
making them probably in the early 80's?
I have a DB Products catalog copyright 1971. All antennas in this catalog show
and describe 3/8 OD tubing for
But the feed harness would be a bit more difficult for 6
pairs (or 6 single
elements).
Nah, not really. You can power-divide into any number of branches, there's
nothing sacred about multiples of two's.
And, the original post indicated he had an antenna that had 6 single
elements, I
Installing a VHF base station using a brand new RFS Cellwave
Omni Antenna. The label says the antenna is now made in Denmark.
Appears to be very well made... just interesting to learn it
was made in Denmark.
cheers,
s.
That's odd, last week I picked up a case of Carlsberg pilsner
Will have a Like new Icom FR-4000 for sale the end of May 2009.
It at this time is at my tower in TN just set up to ID every 15 mins. (no
other use) Was installed in December 2008 new repeater.
Will replace with Icom FR-6000. Asking price $1100.00
will program if needed and just add
Looks like the general concensuss is to keep this one in service and not even
bother trying the Diamond antenna.
The Diamond is not even in the same class as this antenna in terms of
construction and quality.
There is a reason this antenna's list price was in the $500 range and the
Diamond
--- In Repeater-Builder@yahoogroups.com, Jeff DePolo j...@... wrote:
If the elements are flat (not tubing), then it's a DB410. They stopped
making them probably in the early 80's?
Interesting Jeff, the DB410 pictured and described in my old DB catalog looks
EXACTLY like a modern DB420.
If I were to guess, and it's just that, I'd guess flat stock sometime on the
50's or 60's.
Chuck
WB2EDV
- Original Message -
From: Laryn Lohman lar...@hotmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, March 28, 2009 4:01 PM
Subject: [Repeater-Builder] Re: What is this
That's how I remember them too.
Chuck
WB2EDV
- Original Message -
From: Laryn Lohman lar...@hotmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, March 28, 2009 5:02 PM
Subject: [Repeater-Builder] Re: What is this antenna???
--- In Repeater-Builder@yahoogroups.com, Jeff
DB 406 pre 1970
Re: [Repeater-Builder] DB-406 450-470MHz how useful on 440-450MHz?
James
10 Aug 2004 00:31:31 -
window.google_render_ad();
I had a DB404 (I think that was the number, two dipoles each side of the
stick, 5 or 6 ft long?). This was made for 450-470 and
K5IN,
The antenna you have is a DB-406. They are a old design and were fairly narrow
banded (450-470). As a rule they do not make the Ham band with any kind of
return loss numbers that are desirable for use as a 440 repeater antenna.
With the loops orientated the way they are in your picture
Hi Jeff,
The antenna arrived (OK) in the typical super thick round tube.
Gonna see you at Dayton this year? Looking forward to the
beer (pale ale) and brats (brauts) again.
My long time Friday evening diner event was is (relatively) last
min canceled so I'm looking around at other options.
Fellows:
How much are seven sections of used Rohn 45 tower worth? The tower is on the
ground, has been painted, but the galvanized appears to be intact...no rust.
No bent sections. Estimates? Thanks de David
Howdy gang.
I have a UHF Micor repeater that was having intermod issues.
I traced the problem to ripple on the main power supply.
After pulling this monster out and flipping it over I noticed electrolite
leakage around two of the large capacitors.
I would guess this is a pretty common failure
I don't have any experience with Kenwood commercial radios, but I can tell you
that I have repaired may Kenwood mics for their Ham radios that had flakey SMT
capacitors in them causing them to key the radio at random times and for random
lengths of time. An easy way to test for this is to
David,
Where aare you located? If you are close I will make you an offer, if
you want to sell. I would say $50 - $75 per section. What color is it
now?
Collin
-Original Message-
From: drwoolweaver k5...@ix.netcom.com
To: Repeater-Builder@yahoogroups.com
Sent: Sat, 28 Mar 2009 8:16 pm
I am taking everyone's advice on this topic. I agree the antenna I am using
now is superior to Diamond, as you said, hence the expensive list price. It
does a very good job as it is, and I am sure it will do better after the ground
radials are installed. I got the clamps and aluminum strips
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