It's never enough to make a profit, and never cheap enough to have a ham
pay for it.
We certainly are a parsimonious group of people. ;-)
73, Joe, K1ike
On 4/17/2010 11:39 PM, Mel Swanberg wrote:
I probably could, but I never know what to charge for stuff like that.
Mel - WA6JBD
for particular units, maybe set a
flat rate for different models.
Chuck
WB2EDV
- Original Message -
From: Mel Swanberg wa6...@yahoo.com
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, April 17, 2010 11:39 PM
Subject: Re: [Repeater-Builder] Identify Please
I probably could, but I never know
I probably could, but I never know what to charge for stuff like that.
Mel - WA6JBD
Mel - Looks like you could have a
side job re-working these things for hams.
Chuck
WB2EDV
It is a dual stage circulator.
Attach dummy loads to the bottom connectors and sweep it with the generator
on the antenna side and the detector on the transmit side, you should see
about a 40-60dB dip on the frequency it is tuned for.
On Fri, Apr 16, 2010 at 2:11 PM, La Rue Communications
At 02:11 PM 4/16/2010, La Rue Communications wrote:
Ran across a box of 5 or 6 of these units. Have no idea what they
are aside from being a CelWave R.F product. If any of you have one
of these, maybe you can tell me what it is, and what bandwidth it
would be for. Right now, its my *guess*
---Looks like a circulator (isolator) to me. No model # on the
label (and no way to tell from the pic what its freq is)?
I should have said a dual stage circulator...
Ken
--
President and CTO - Arcom
-
From: La Rue Communications
Sent: Apr 16, 2010 5:11 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Identify Please
Ran across a box of 5 or 6 of these units. Have no idea what they are aside
from being a CelWave R.F product. If any of you have one
...@tir.com
*To:* Repeater-Builder@yahoogroups.com
*Sent:* Friday, April 16, 2010 2:21 PM
*Subject:* Re: [Repeater-Builder] Identify Please
Looks like a two stage circulator. One port is for input one for output and
the other two (that come out the same side) are terminated into 50 ohm dummy
...@yahoogroups.com] On Behalf Of La Rue Communications
Sent: Friday, April 16, 2010 2:34 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Identify Please
Thanks all for the speedy responses. I found one more (with a tag to boot!)
assuming they are all the same
Here's a picture of one from my office:
Bill Hudson
W6CBS
Thanks all for the speedy responses. I found one more (with a tag to boot!)
assuming they are all the same, they are Model CD800-F, tuned to 875.00 MHz.
Ugh, more 800 crap for the junkpile! Is it wrong to be cursing Nextel? I
at the moment to
verify. Would that be verified with the monitor?
John Hymes
La Rue Communications
10 S. Aurora Street
Stockton, CA 95202
- Original Message -
From: Bill Hudson
To: Repeater-Builder@yahoogroups.com
Sent: Friday, April 16, 2010 2:56 PM
Subject: RE: [Repeater-Builder
to Knox)
_
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of La Rue Communications
Sent: Friday, April 16, 2010 3:03 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Identify Please
Thats the one Bill! I have 3
@yahoogroups.com
Sent: Friday, April 16, 2010 3:12 PM
Subject: RE: [Repeater-Builder] Identify Please
Here are the precise instructions on tuning that bad boy to see if it will
stretch to 902-928. It is on the Repeater-Builder website:
http://www.repeater-builder.com/db/pdfs/db-dual
I might be a little wrong because I dont have one in front of me, but try
this:
Connect the Generator of a spectrum analyzer to the connector all the way to
the right.
Connect a dummy load to the connector on the bottom left.
Connect the detector to the connector all the way to the left.
You
Sent: Friday, April 16, 2010 3:03 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Identify Please
Thats the one Bill! I have 3 units that look just like that, and 3 that have
the CelWave R.F on the label. Any HAMs good with Trap Shooting? :-)
One more question
95202
- Original Message -
From: Eric Lemmon
To: Repeater-Builder@yahoogroups.com
Sent: Friday, April 16, 2010 3:27 PM
Subject: RE: [Repeater-Builder] Identify Please
John,
Don't get your hopes too high, because most dual isolators can only be tuned
3% or so away
Disassemble, save the screws and Type-N bulkhead connectors and toss the rest!
LOL
- Original Message -
From: La Rue Communications
To: Repeater-Builder@yahoogroups.com
Sent: Friday, April 16, 2010 6:32 PM
Subject: Re: [Repeater-Builder] Identify Please
Thanks
A lot of us amateur microwavers retune circulators with external magnets. With
a handful of otherwise useless circulators, one could tear one apart, recover
the magnets, and apply them to the outside of the case of the unit to be tuned.
A network analyzer helps, so you can watch what's
, April 16, 2010 7:23 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Identify Please
A lot of us amateur microwavers retune circulators with external magnets.
With a handful of otherwise useless circulators, one could tear one apart,
recover the magnets, and apply them
Hi Eric,
The steel cases are not an impediment to the magnetic field, at least not
enough to make retuning impossible. Microwave type circulators are built in a
similar fashion, just smaller, and the technique is well known among those of
us who play in the microwave region. Just to give an
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