I agree with Kevin.
All too often one hears someone say they have everything they need to make a
repeater, except for a duplexer. They expect to use a piece of crap antenna,
too.
Spend your money on a good duplexer and good antenna. The other stuff is the
cheap stuff. The antenna and duplexer
Come on guys I gave you a direct email link to keep this off the list.
Sorry to Kevin and anyone else that might not appreciate the OT traffic.
Again: mailto:[EMAIL PROTECTED]
Chuck
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday,
Funny you should mention Regency. My nickname for them has always been
re-junk-cy.
And while we're bashing different manufacturers of repeater equipment,
there's at least one controller out there that is a real dog. Been several
revisions to it, but it stays a dog.
Need we go on about antennas.
That was the problem with the Hamtronics stuff. Trimmer caps were
problematic. I had one of their exciters for 6-meters way back when and
you couldn't keep it aligned to save yourself, besides the fact that it
sounded like crap on the air.
Chuck
WB2EDV
- Original Message -
From: Kevin
Thanks for sharing the circuit. Now someone needs to design a printed
circuit board for it and make it available to those not having the
wherewithal to make their own.
Chuck
WB2EDV
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday,
: [Repeater-Builder] Re: PL/CTCSS Filter
On Thu, 27 Nov 2003 13:09:44 -0500, Chuck Kelsey wrote:
Thanks for sharing the circuit. Now someone needs to design a printed
circuit board for it and make it available to those not having the
wherewithal to make their own.
Just breadboard it Chuck. It only
But it's human nature.
Ask a kid if he would like some old stale popcorn right now, or whether he'd
rather wait to go to the store later on and buy some new popcorn with his
own money.
What's his choice going to be? Yep, take the stale stuff and eat it now.
Chuck
WB2EDV
- Original Message
: [[Repeater-Builder] Spectrum Communication SCR1000]
Didn't the guy say he had two 2M pairs, though? (read: Not UHF)
Joe M.
Chuck Kelsey wrote:
That's the exception, not the rule. Typically UHF (non tripler) MII's go
for
$75 - $100. But even at that price, you are looking at the RF being
M and GE are the favorites since they are the most easily found, economical,
and work extremely well.
Your Spectrum may be one of those that actually worked. I had one that was
fine (a UHF model with all the high stability and filter options), but most
appear to have had difficulties.
Chuck
Maybe I'm reading more into this than I should, but it appears that the
Spectrum was on the air from July 1976 until June 2001 -- 25 years -- before
they purchased a couple of Micor repeaters.
Like I said earlier, I had a Spectrum UHF, I believe it was the S7-R model,
and it had the high
Shack.
Chuck Kelsey
WB2EDV
- Original Message -
From: john_k2gvp [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, December 02, 2003 4:52 PM
Subject: [Repeater-Builder] Re: crimp/crimp or clamp/solder?
Sean: My experience in 30+ years in electronics has been
I agree. I'm doing that distance on UHF with lots of hills and portables
running only about 1 watt. I'd be willing to bet you've got a repeater
antenna problem, maybe causing desense.
Chuck
WB2EDV
- Original Message -
From: skipp025 [EMAIL PROTECTED]
To:
Although I've never tried it, I have heard some say that you can inject the
crystal frequency with a service monitor. Someone more familiar with the
Mitrek could better advise, however.
Chuck
WB2EDV
- Original Message -
From: fyreonhigh [EMAIL PROTECTED]
To:
Why don't you write it up in some detail and submit to Kevin for posting on
the Repeater-Builder web site?
Chuck
WB2EDV
- Original Message -
From: Virden Clark Beckman [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, December 20, 2003 8:19 AM
Subject: Re:
And the other side of the coin -- press the PTT and then talk. All too often
one hears a user (ham and commercial) begin talking before they have pressed
the PTT. And it's even worse if there's CTCSS involved on both the repeater
and the users radios -- add the time for two decoders to kick in. I
You will gain 3 dB that most likely will never be noticed by your users. You
will add the need to place additional supports. You'll narrow the beamwidth
which may cause close-in coverage problems. It will add to your cost. I'd
personally stick with the 4-element version.
Chuck
WB2EDV
-
and one 6 meter ham repeater and oversees a UHF repeater system at
work.
Chuck Kelsey
WB2EDV
Yahoo! Groups Links
To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
Your use of Yahoo
That's the problem when you get
older
First, you can't find the car keys...
Then, you go to the store and can't remember
everything the wife told you to get
Then you can't find the repeater's duplexer. It
seems to go downhill from there.
Chuck
- Original Message -
Why would you use this in favor of a traditional sequential two-tone or a
DTMF sequence? And of those two, I'd pick the sequential two-tone to avoid
happy touch toner's from accidentally alerting someone. And some
controllers will generate a sequential two-tone for you.
Chuck
WB2EDV
-
My reply was likewise based on the information at hand and the near
impossibility of finding 5-tone decoders. But even given that, it seems like
a lot of overkill to use an exotic format.
I'm certainly not opposed to experimenting and learning, but the original
post didn't really give us a hint
Maybe it's just me. The page comes up with service unavailable.
Chuck
WB2EDV
- Original Message -
From: Craig [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Friday, December 26, 2003 10:29 PM
Subject: [Repeater-Builder] 5-tone
For those that would like to see a listing
I suggest that everyone send a copy to their local emergency services (fire,
sheriff, ambulance, etc.). I took a moment to do so and gave one to my local
electric utility as well.
Chuck Kelsey
WB2EDV
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
I've never heard of this happening before. I've always had very good results
with DB folded dipoles. I must wonder if a phasing harness quality control
problem developed - maybe when DB was sold. Workmanship issues continue to
increase almost everywhere, it seems. Not really sure what to make of
with 146.64, the only way to cure it was to replace
all of the cable in the house and the drop to the cable co tap with
RG-11, and terminate all unused outlets in the house.It is still there
slightly but perfectly watchable
Chuck Kelsey wrote:
Cable channel 18 is 145.25 video, 148.83
Here's what Times Microwave has to say about cable noise:
SELF GENERATED CABLE NOISE
A noted cable phenomenon, is the generation of acoustical and electrical
noise when flexed. The acoustical noise is a function of mechanical motion
within the cable. Such noise (and the associated mechanical and
Oh great! Just what we needed. Yet another source of interference that will
be virtually unexplainable to the neighbor.
Chuck
WB2EDV
- Original Message -
From: Gene Colson [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, January 03, 2004 10:44 AM
Subject: Re:
Those aren't free anymore, are they?
Chuck
- Original Message -
From: Neil McKie [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, January 03, 2004 9:00 PM
Subject: Re: [Repeater-Builder] Off topic questions
Those of you out there who are fortunate enough to
These values can vary, but in my opinion they are
as follows:
Low band Mitrek $0 - $30
VHF band Mocom $0 - $10
Motorola siren $0 - $25
Probably not what you were hoping for, but this
equipment is pretty easy to come by just for the asking.
Chuck
WB2EDV
- Original Message -
I'd like a line on those free Mastr II UHF
radios.
Chuck
WB2EDV
- Original Message -
From:
James
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, January 06, 2004 7:43
PM
Subject: Re: [[Repeater-Builder] Repeater
Help]
Good luck, If you check with
I agree with you. It appears to be commercial grade rather than amateur
grade. It seems like Hy-Gain made a similar antenna, but my bet is that it
(the Hy-Gain) was much lighter duty. My hunch is that it may be an old
Phelps Dodge antenna from the 60's.
Chuck
WB2EDV
- Original Message
That's what I found on my 6 meter repeater. Exciter oscillator runs all the
time. I believe I configured it so it would not do that. It's a real pain
when using an HT in the repeater shack otherwise.
Chuck
WB2EDV
- Original Message -
From: Laryn Lohman [EMAIL PROTECTED]
To:
Whenever this subject has come up before, the suggestion has been trial and
error by checking the receiver for desense.
Chuck
WB2EDV
- Original Message -
From: ROB FELSTEIN [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 19, 2004 4:25 PM
Subject:
I've never seen an MVP T/R relay fail. They are sealed in a metal can.
I'd sooner think that the interconnecting cable between the T/R relay and RX
input may have become questionable. The connections are simple RCA
plugs/jacks and may have become corroded over time. Could also be the RCA
Seems with all the talk on here about the benefits of using an impedance
matcher at the repeater's transmitter output, someone could come up with
some construction information for the group.
Chuck
WB2EDV
Yahoo! Groups Links
To visit your group on the web, go to:
I swap out a repeater that
uses one, but that will be in a month or two... Perhaps some photos of
the guts will be useful...
73, Eric Lemmon WB6FLY
Chuck Kelsey wrote:
Seems with all the talk on here about the benefits of using an impedance
matcher at the repeater's transmitter output
If my memory is correct (and it may not be) I seem to recall
that Decibel was going to discontinue selling antennas directly to hams, on ham
frequencies, on a small volume basis. However, it seems that someone said that
they would do a run of antennas on ham frequencies if someone wanted
: [Repeater-Builder] Bad price
from Cook!
DB will not sell direct.
I think COOK Towers orders a pile of the Ham stuff as well
as Business, Police and Fire stuff. We as Hams gain because we can still get a
great Ant.
73 Russ
- Original Message -
From:
Chuck Kelsey
Lee, maybe you could try another picture sometime. Those two were pretty
fuzzy. Can't really see the components. I can tell it's right next to the
harmonic filter and it looks like an RCA connection to the outside world,
but that's about it.
Chuck
WB2EDV
- Original Message -
From: Lee
Are there specifics on the variable air capacitors - like similar to XYZ
or a working voltage, etc?
Chuck
WB2EDV
- Original Message -
From: ac0y5 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Friday, January 23, 2004 10:01 PM
Subject: [Repeater-Builder] Re: Z-Matcher
Not wanting to sound like looking a gift horse in the mouth what about 6
meters and 440?
The GE versions for 2 and 440 look good, but I also like the idea of a self
contained version that just adds on at the antenna port.
Chuck
WB2EDV
- Original Message -
From: Eric Lemmon [EMAIL
Thanks for taking the time and effort to come up with the info. And the
pictures were great!
Chuck
WB2EDV
- Original Message -
From: Eric Lemmon [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, January 25, 2004 9:49 PM
Subject: [Repeater-Builder] Z-Matcher
Would that mean to tune for the highest power level out at the lowest
current draw?
Chuck
WB2EDV
- Original Message -
From: Jeff DePolo WN3A [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 26, 2004 3:16 PM
Subject: RE: [Repeater-Builder] Z-Matcher
EMR makes Z matchers and discounts 25% off list to hams.
The model 6550/Z for UHF ends up $67.50 and the model LB6350/Z for six
meters ends up $78.75 after the discount. Forgot to ask about the VHF high
band (I don't have any repeaters there).
Chuck
WB2EDV
Yahoo! Groups Links
To visit
http://www.emrcorp.com/catalog/contents.html
440 band6650/Z $67.50
2 M6450/Z 63.75
6M LB6350/Z 78.75
These prices are including the ham discount.
Yahoo! Groups Links
To visit your group on the web, go to:
http://www.spectrumwatch.com/engineering/tools/tools.asp?tab1=4
this site gives you several things.
Chuck
WB2EDV
- Original Message -
From: Tim Shephard [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, February 05, 2004 3:20 PM
Subject: [Repeater-Builder]
I guess that the Repeater Builder list was so overwhelmed with Mitrek stuff
that it was inevitable that another list would be needed.
I'm thinking of starting a list for users of 1/4 wave stainless steel 440
whip antennas. Should I narrow it down to the black anodized/painted ones?
Chuck
WB2EDV
It starts to get a bit old. And, yes, I suppose my comments are slightly
out of line here.
Does someone have the right to start a new list even though there are
several existing ones that will easily serve the purpose? Certainly.
Can someone put up another repeater when there are already 10
Use 'em. And fire extinguishers for 2 meters and 440.
Chuck
WB2EDV
- Original Message -
From: dave_g7uzn [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, March 15, 2004 6:48 AM
Subject: [Repeater-Builder] 6M duplexers using C02 bottles ?
Hi All, and greetings
No one silver plates the inside of the can. And my assumption was that they
were aluminum. I don't think I'd use steel.
Chuck
WB2EDV
- Original Message -
From: ka0ies [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, March 15, 2004 1:04 PM
Subject:
Best bet is to pick up a used can and duplicate it times the number you
need. After you've done that and poured tons of hours into your project, you
decide whether you want to document in detail and share the info with the
rest of the world.
Chuck
WB2EDV
- Original Message -
From:
@yahoogroups.com
Sent: Monday, March 15, 2004 4:33 PM
Subject: RE: [Repeater-Builder] 6M duplexers using C02 bottles ?
Has anyone ever tried this???
-Original Message-
From: Chuck Kelsey [mailto:[EMAIL PROTECTED]
Sent: Monday, March 15, 2004 11:57
To: Repeater-Builder
The GE Exec II makes a fine UHF repeater. I've done
several. There is no "conversion" to the ham bands. You buy crystals and tune it
up. You can't just generally tune the radio for the ham band -- you need to tune
it for your specific frequency.
Chuck
WB2EDV
- Original Message
Good memory. I was thinking about these wires, too. I couldn't remember the
company name. As I recall, there were some on the list who had tried these
wires and had great success.
Chuck
WB2EDV
- Original Message -
From: Burt Lang [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Have not seen that arrangement yet. Seems like it would be easier to shield.
Chuck
WB2EDV
- Original Message -
From: Steve Bosshard [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, March 27, 2004 4:13 PM
Subject: RE: [Repeater-Builder] Ignition Noise suppression
Line of sight should give you 100 miles with only 5-10 watts. I've done 65
miles with one watt.
Chuck
WB2EDV
- Original Message -
From: Richard [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 28, 2004 9:31 PM
Subject: RE: [Repeater-Builder] UHF link
I
I don't use a blanker on my 6 meter machine, but I've heard that some have
had success connecting the blanker to a separate RX antenna.
Another approach is to use a Delta with the blanker board installed. This
blanker does its job at I.F. frequencies instead of a separate front end. It
worked
I agree. Try it as is. I'm running a DB-411 (4 elements all pointed in one
direction) with good SWR on 442.75.
Chuck
WB2EDV
- Original Message -
From: Laryn Lohman [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, March 31, 2004 10:28 PM
Subject:
Rule of thumb
Things are always worth less when you own them than they are when someone
else owns them ;-)
Chuck
WB2EDV
- Original Message -
From: Dave [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, April 03, 2004 12:55 PM
Subject: [Repeater-Builder] SCOM
http://www.amtronix.com/
- Original Message -
From: KC1RM [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, April 03, 2004 7:30 PM
Subject: [Repeater-Builder] Used Test Equipment Sources
Wondering if anyone can recommend a good source of used test
equipment?
Sounds like corona discharge problem like we used to have on a 2-meter
machine here.
What are you running for an antenna? How is the antenna system
grounded?
It's not unusual to have this effect using a co-linear style antenna at
some sites.
Chuck
WB2EDV
- Original Message
According to PolyPhaser, the best grounding material is copper strap, then
solid copper (or copper clad) wire. They don't recommend using stranded wire
due to increasing inductance as the strands start to weather and corrode
between each conductor.
Chuck
WB2EDV
- Original Message -
Good price.
It's been too long since I was involved with MED licensing, but typically
you are looking at routine patient stat info between ambulance and hospital
and between ambulances. You can also send telemetry.
Let me guess... they dropped the licenses and use cell phones. What a HUGE
Just curious... how did you determine that each element was 50 ohms?
I was always of the understanding that the Decibel design, each element was
100 ohms. Also, that the later versions of Decibel arrays used 50 ohm and 35
ohm cable, no 75 ohm stuff.
Chuck
WB2EDV
- Original Message -
ohms but all the folded-dipole types I ever played
with
were close to 50.
73
Al, K9SI
Date: Sat, 17 Apr 2004 22:25:06 -0400
From: Chuck Kelsey [EMAIL PROTECTED]
Subject: Re: Re: Decibel repeater antenna question..
Just curious... how did you determine that each element was 50 ohms
to substitute a commercial transmitter and receiver and
just, if you're lucky, have enough extra headroom to make it work reliably.
My gut feeling is that you won't be able to accomplish what you are setting
out to do at that small distance and stay within the ham band without the
aid of a can or two.
Chuck
The link was a blank page.
Chuck
WB2EDV
- Original Message -
From: Kevin Custer [EMAIL PROTECTED]
To: Repeater Builder Repeater-Builder@yahoogroups.com; GE List
[EMAIL PROTECTED]; GE-Mastr II List [EMAIL PROTECTED];
Motorola-User List [EMAIL PROTECTED]; Micor List
[EMAIL PROTECTED]
http://www.amtronix.com/
- Original Message -
From: Rich Garcia [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, April 24, 2004 11:54 PM
Subject: [Repeater-Builder] Suggestions as to IFR Monitor Repairs ?
Would like to hear from other IFR owners as to where you
http://www.aria-glb.com/reset_frames.htm?/index-main.shtml
Not sure if they still make them anymore.
Chuck
WB2EDV
- Original Message -
From: k9bf [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 17, 2004 11:39 AM
Subject: [Repeater-Builder] GLB preamp
Hi
to be the harness
anyway.
Chuck Kelsey
WB2EDV
- Original Message -
From:
Kim
Carr
To: Repeater-Builder@yahoogroups.com
Sent: Friday, May 21, 2004 10:00 AM
Subject: RE: [Repeater-Builder] Re:
DB-224 Questions
Anyone know if this
method has been tried on 440MHz
- Original Message -
From: Chuck Kelsey [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, May 22, 2004 11:18 AM
Subject: Re: [Repeater-Builder] Remote Base Project
I agree with Kevin. Try it.
Keep your remote base TX output as low as you can. Try always to work
Make that MASTR! not Master. I DO know how to spell it ;-)
Chuck
WB2EDV
- Original Message -
From: Chuck Kelsey [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, May 22, 2004 11:26 AM
Subject: Re: [Repeater-Builder] Remote Base Project
Almost forgot. If things
Once in a while, but most of us are wise and search
on all the common "misspellings."
I seem to be able to tolerate "Mastr 2" without a
problem, but the Mastr 11 (eleven) is the worst for me.
Chuck
WB2EDV
- Original Message -
From:
Budd Turner : N7EOJ
To:
Yes Mastr, said Jeanie to Major Healy.
- Original Message -
From: Charles Miller [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, May 22, 2004 10:23 PM
Subject: Re: [Repeater-Builder] GE Mastr II
PLEASE CUT IT OUT.
MY SIDES ARE HURTING.
Now, that's a Syntor 10 (ten) isn't it?
Chuck
WB2EDV
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, May 22, 2004 4:58 PM
Subject: Re: [Repeater-Builder] GE Mastr II
Kinda like the notations I often see for the Motorola Syntor XX.
Yep... must be a bad memory chip ;-)
- Original Message -
From: Steve Grantham [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, May 23, 2004 1:06 AM
Subject: Re: [Repeater-Builder] GE Mastr II
That was Major Nelson.
- Original Message -
From: Chuck
Yes, that works well.
Chuck
WB2EDV
- Original Message -
From: wa8ili [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 24, 2004 8:59 PM
Subject: [Repeater-Builder] Folded dipole ant.
What is the material used to secure the hot end of the folded
dipole to
You can also use Lexan.
Chuck
WB2EDV
- Original Message -
From: Jeff Otterson [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 24, 2004 9:26 PM
Subject: Re: [Repeater-Builder] Folded dipole ant.
I think that Delrin is popular.
I have bought it from
There are others on this list who could site engineering theory to prove
your suggestion to be not efficient.
My approach is more basic -- effectiveness and cost.
If your idea would work, the commercial two way world would implement it.
Why? Because tower real estate is expensive. If placing 4
I'm partial to a vectorscope.
Chuck
WB2EDV
- Original Message -
From: Jeff DePolo [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, June 07, 2004 2:08 PM
Subject: RE: [Repeater-Builder] East coast system?
There are a few variables in figuring this out, one is
Stick with a Micor or Mastr II exciter. Cheap, and will work forever.
Chuck
WB2EDV
- Original Message -
From: Mathew Quaife [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, June 10, 2004 8:27 PM
Subject: Re: [Repeater-Builder] Using an HT for a Transmitter -
Are you using cheap hamfest connectors or are they Amphenol or Kings? I
think if you stick with a name brand, you'll find that they will work well.
The silver plated imports are junk.
Chuck
WB2EDV
- Original Message -
From: NØATH [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
I was wondering the same thing. Fit fine.
Chuck
WB2EDV
- Original Message -
From: Laryn Lohman [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, June 14, 2004 10:36 PM
Subject: [Repeater-Builder] Re: Duplexer cable question
Hm. I've never had to
, bottom half not so good, going to attempt
to
build a harness. Unless the price of a new one is cheap enough, might
just
buy one.
Mathew
- Original Message -
From: Chuck Kelsey [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, June 14, 2004 6:35 PM
Yep, got to keep in mind both the gain of the antenna and the power
output -- the ERP. But, I have to agree, regardless of the antenna gain, if
you drop the power level by 50%, most users will never be able to tell.
Chuck
WB2EDV
- Original Message -
From: Chris Peterson [EMAIL
So, when you're down 20 dB it's time to refill the coffee cup?
Chuck
WB2EDV
- Original Message -
From: Neil McKie [EMAIL PROTECTED]
Sent: Friday, July 16, 2004 12:16 PM
Subject: [Repeater-Builder] Just a couple of dB loss you say?
The following is from a coffee cup I
got
Hey, it may have been obsolete technology, but it sure beat the heck out
of performance people are expected to put up with using cell phones. That
old technology actually worked good.
Chuck
WB2EDV
- Original Message -
From: Eric Lemmon [EMAIL PROTECTED]
To:
I may have one still, if I can locate it. Let me know if you come up empty.
You do know that the Parkinson board doesn't do much don't you? It allows
the radio to repeat and has a hang timer and audio adjustments. There is
probably a ComSpec board on it. But, it does not have ID nor any control
Most low band base station antennas can be cut down to 6 meters. However, a
base loaded mobile usually can't, unless the coil was designed to go to 54
MHz in the first place.
Chuck
WB2EDV
- Original Message -
From: Kevin Bednar [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
You want the user to be a bit noisy when you do that test. If you then turn
your repeater TX on and nothing changes, you don't have desense.
Chuck
WB2EDV
- Original Message -
From: Mathew Quaife [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, July 26, 2004 10:48
No.
- Original Message -
From: Mathew Quaife [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, July 26, 2004 10:17 PM
Subject: Re: [Repeater-Builder] Receiver Sensitivity Testing Through
Duplexer
Could I get by using a seperate antenna to test for desense? Say
Yep, premium stuff. Can't go wrong.
Chuck
WB2EDV
- Original Message -
From: Maire Company [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, August 01, 2004 5:46 PM
Subject: Re: [Repeater-Builder] Wanted: UHF Duplexer
I don't know always had good luck and great
I believe we are talking about a tower that is not required to be lit or FAA
painted.
Chuck
WB2EDV
- Original Message -
From: mch [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 02, 2004 12:31 AM
Subject: Re: [Repeater-Builder] FAA Paint Removal
As for
Maybe the 406 is an older model, my catalog doesn't show it. What type
antenna is it? If it's a folded dipole array, you should be able to use it
as is.
Chuck
WB2EDV
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 09, 2004 4:02 PM
just checked Andrew's web site it is like the
DB-411.
I didn't know folded dipoles were so broad at these frequencies. I guess
the next thing to do is test it out
with and SWR meter.
Steve
WA6ZFT
From: Chuck Kelsey [EMAIL PROTECTED]
Date: 2004/08/09 Mon PM 05:32:44 EDT
To: Repeater
Title: Message
John,
You may want to check with your local cable TV
company. They may have some on hand and may be nice enough to core it for you.
Never hurts to ask. Tell 'em you're with the TV station.
Chuck
WB2EDV
- Original Message -
From:
Jeff DePolo
To:
I agree with Kevin. GE and Motorola stuff is out there for less money and
much less grief. There's conversion info on the Repeater Builder's web site
for the 220 stuff.
Chuck
WB2EDV
- Original Message -
From: Kevin Custer [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent:
I'm willing to take that risk ;-)
Chuck
WB2EDV
- Original Message -
From: Coy Hilton [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 16, 2004 8:59 PM
Subject: [Repeater-Builder] Re: RAMSEY BOARDS fo 2 m and 220.
CAREFULL, Chuck and Kevin you may hurt
DB-408 will give you decent gain without the extra length and cost of the
DB-420. It has 4-bays (8 elements).
It will give you good close-in coverage with HT's that the higher gain
antennas can't give. If most of your potential users are 10-15 miles away,
the DB-420 (8-bays, 16 elements) is not
Quick answer -- no.
Expanding on this -- you will barely be able to detect a difference.
Chuck
WB2EDV
- Original Message -
From: ian wells [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, August 28, 2004 4:27 AM
Subject: [Repeater-Builder] db comparisons
in the
field and just listening to the signal -- no meters, just your ear.
Chuck Kelsey
WB2EDV
- Original Message -
From:
Tom Parker
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, August 28, 2004 12:39
PM
Subject: Re: [Repeater-Builder] db
comparisons
An old
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