At 10/3/2008 00:10, you wrote:
Here is the latest. I terminated the cable at the antenna with a dummy
load and no desense. I hooked back up to the antenna and if listen to the
receiver with the squelch
open I hear a buzz in the background of the receiver white noise audio in
addition to desense
I don't know the current situation, but for years the antennas were inside
the building because the Forest Service would not allow them on the outside.
Around 1971 when the 2m repeater was first installed, we couldn't even
acknowledge where the repeater was located. At one time some years back,
When You say you're hearing a buzz in the background indicates to
me either severe line noise or, more likely, TV video from some high
power station TV transmitter. Try a substitute simple home made
ground plane antenna to rule out intermod generated from the antenna.
If noise is still
Hello all;
I'm trying to resurrect a 'Hybrid Ring Combiner'; it takes two 950 MHz
broadcast STL transmitters into a common antenna
I need one of the chassis-mount N-female connectors, it has one of the 4
'fingers' broke off the center connector
UG-58 A / U is stamped on them
Mouser says 'not
Any reason you can't use the connector that's listed in the Mouser catalog
above or below the UG-58? It's still an N female, four-hole chassis mount.
Mouser p/n 523-82-97-RFX
Over 1000 in stock, cost under $5.
Bob M.
==
--- On Sun, 10/5/08, Gary Glaenzer [EMAIL PROTECTED] wrote:
From:
Digi-Key Part NumberARF1023-ND
Price BreakUnit PriceExtended Price
112.8500012.85
109.2160092.16
257.06600176.65
1006.55990655.99
2505.710521,427.63
5005.412362,706.18
Quantity Available
789
ManufacturerAmphenol-RF Division
Manufacturer Part Number82-97
DescriptionN CONN SQUARE FLANGE
Lead Free
don't know
I'll call them tomorrow and ask what the difference is
G
- Original Message -
From: Bob M.
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, October 05, 2008 11:08 AM
Subject: Re: [Repeater-Builder] perhaps OT: need connector
Any reason you can't use the
Anyone have any ideas what a set of Sinclair C-3037 multicouplers are
worth? For the 450 to 470 Mhz band.
Here is the Sinclair site info;
http://www.sinclairtechnologies.com/catalog/product.aspx?id=101
Please contact me off list.
Thanks, Eric, VA3EAM
On Ebay for this assembly... the sharks alone would probably
bid it up to min $150.00
The bare quality UHF cavities alone are worth min $50 each
on Ebay... use the words Transmit Combiner in any part of
your auction listing and watch the sharks circle and the
feeding frenzy start.
Gary,
The new Military Specification for the UG-58/U panel jack is M39012/04-0002,
available here:
www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-PRF-39012/prf39012ss4.pdf
The only panel jack that meets the Mil-Spec has a silver-plated brass body,
a gold-plated center contact, and a PTFE (Teflon)
I've searched high and low but not found my Celwave catalogs. The RFS site was
no help. Can someone confirm that the CD220-B is for 220 MHz? Their naming
conventions appear straight forward. And if indeed for 220, has anyone used one
in the ham band on a repeater?
Thanks
Mike/W5JR
Mike,
Although my Celwave catalog does not show the CD220 isolators, I believe
that they were made for 220 MHz service. This seems logical, since the
CD150 series is for 136-174 MHz, the CD280 series is for 250-285 MHz, and
the CD460 series is for 406-512 MHz. However, the range of a specific
Just received a R1225 radio.
No duplexer or power supply with this radio.
No GR1225 Housing, just a basic radio.
Want to use the radio as just a base station, no repeater.
Couple of questions.
How can I control this radio? Does it have a remote head for it?
Remember, it did not come with the
I'm trying to resurrect a 'Hybrid Ring Combiner'; it takes two 950 MHz
broadcast STL transmitters into a common antenna
A Marti intermod-maker, right?
I need one of the chassis-mount N-female connectors, it has
one of the 4
'fingers' broke off the center connector
I have Deltas with gold
You can use a GM300 head.
skydiver297 wrote:
Just received a R1225 radio.
No duplexer or power supply with this radio.
No GR1225 Housing, just a basic radio.
Want to use the radio as just a base station, no repeater.
Couple of questions.
How can I control this radio? Does it have a remote
Outstanding. I really appreciate all the expertise here and the quick
replies to my very basic questions.
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Tom Parker
Sent: Sunday, October 05, 2008 5:56 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re:
Didn't read far enough... the back connector is the transmitter and the
front connector is the receiver... remember, it's a repeater by design.
Ray Hughes wrote:
Outstanding. I really appreciate all the expertise here and the quick
replies to my very basic questions.
From:
Our group was recently given a range 1 UHF MSF5000 secure station. Was
wondering if it was possible to get this up into the hambands without
too much trouble or is it not worth messing with? Thanks for any info
or help.
Keith Dobbins KC8RFW
W8TAP Repeater Group Technician
Parkersburg, WV 26101
Ray,
It seems a shame to use a full-duplex radio, complete with an internal
controller, as a base station- but it will work. Since the R1225 has
separate TX and RX connectors- the rear one is TX and the front one is RX-
you will need to install a T/R relay in order use a single antenna.
900mhz is unforgiving.
Make sure you are getting a silver plated connector.
RF Parts has the actual UG58 that you need for $2.85,
on the page at http://www.rfparts.com/c-typen.html
but they do have a $25 minimum. I'm sure that you
can find something else on the their web site to make
up the
--- In Repeater-Builder@yahoogroups.com, Jed Barton [EMAIL PROTECTED] wrote:
Hey guys,
I've got an older 220 repeater in my shack just taking up space.
scom 5 K controller, hamtronics modules, and an RF concepts amp.
All is working well, i pulled it out of service, and it is just
taking
I'll trade you that R1225 for an equivalent half-duplex radio (GM300)
that already has a nice built-in control head and T/R relay
:) :) :)
On Oct 5, 2008, at 4:02 PM, skydiver297 wrote:
Just received a R1225 radio.
No duplexer or power supply with this radio.
No GR1225 Housing, just a basic
I spent the weekend working on a set of DB4060 cans (cleaning and retuning)
and have managed to commit the ultimate stupidity. I had all the harnesses
off and instead of MARKING them I just laid them out on the bench.
Unfortunately, the bench got 'cleaned' and the cables are now all mixed up.
I
And as a follow up to my first question, as I understand it. there should be
no problem with swapping the TX and RX cans (and retuning them), correct?
Mike
WM4B
_
From: Mike Besemer (WM4B) [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 05, 2008
Hi all
i need another PA for my Master 2 VHF,
i have a Heavy Duty Micor 125 Watts ,really big,
i would exchanger it for an 115 watts GE MAster 2
anyone interested,i can send pictures
gervais ve2ckn
ps my master is dead,
_
Mike,
Not necessarily! Some duplexers are asymmetrical, meaning that one side
is intended for pass low and notch high, while the other is for pass high
and notch low. When the manufacturer puts TX and RX labels on the
connectors, it leads some folk to invert the tuning- often leading to grief.
Eric,
I've run them on a spectrum analyzer as I have them installed now (TX and RX
swapped from original conjuration) and they still seem to pass just fine.
maybe a dB or so of loss. Based on that, I think I'm okay. agreed?
All I need to do is figure out which cable goes where!
Mike
27 matches
Mail list logo
