Re: [Repeater-Builder] I need "professional" help

[DCFluX]

Check with Mike Collis, WA6SVT.  He is an engineer with KUNA/KESQ in
Palm Springs and the system designer for ATN, he may know someone
close to you.  I would do it, but I am not insured, and I've spent my
fair share up towers already this month.

On 5/24/05, Eric Lemmon <[EMAIL PROTECTED]> wrote:
> Jeff,
> 
> The best way to locate someone to install your antenna is to contact each
> of the licensees in that area, and find out what riggers they employ.  You
> can also contact the chief engineers at local broadcast stations, for the
> same info.
> 
> Be aware that, depending upon the proximity and power of any other
> stations in the immediate area, the rigger may have to request that one or
> more transmitters be shut down while he works.  This may incur a
> significant cost.
> 
> 73, Eric Lemmon WB6FLY
> 
> Jeff wrote:
> 
> > I am looking for a competent insured "Tower Climber" in the Los
> > Angeles California area willing to install my new antenna system for
> > my UHF repeater. The tower is a small 3 sided 3 section self supported
> > structure rising approximately 60 feet above the 7800 foot mountain
> > top in the San Bernardino mountains area. I have a new Hustler Spirit
> > 14 foot tall UHF antenna with mounting hardware and Andrews 7/8 hard
> > line and L5NF connectors that will need to be professionally installed
> > and professionally secured to the tower structure.
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
>




 
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Re: [Repeater-Builder] delta sx uhf mobile radio as repeater ?

[mch]

Not very easily. There is only one synthesizer.

Joe M.

[EMAIL PROTECTED] wrote:
> 
> Hello group
> 
> I would like to know if delta sx uhf mobile radio can be moded to
> repeater mode and if so does any one have step by step or some
> directions  any information would be a help at this time.
> 
> Thanks all
> Keith
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>





 
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Re: [Repeater-Builder] D B Products 224 Vhf antenna Question

[Russ]

I had a DB-224 cut for 151.955 from a 
local school district on 147.315 for many years. It worked just 
fine.
I replaced it about a year ago with a new 
DB-224 cut by the factory and it does not work any better then the one cut for 
151.955. I could have saved a few bucks and left well enough a lone. The bottom 
line is it should work just fine if you do not go to far down the band. At 
147.315 the SWR was flat and looked good on the site master.
Good luck and 73,
Russ, W3CH
 

  - Original Message - 
  From: 
  [EMAIL PROTECTED] 
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Tuesday, May 24, 2005 10:19 
PM
  Subject: [Repeater-Builder] D B Products 
  224 Vhf antenna Question
  
  Greetings, All,
   I am in need to replace a vhf repeater antenna that 
  has "gone bad"
    and I have come across  two  DB products 
  224 type VHF antennas 
    Free. They are on 151.XXX now. My question is, has 
  anyone out there used this antenna, [10mhz spread, 150-160 MHz] on their 
  repeaters?  A new one on the ham band will cost $499 plus shipping plus 
  brackets. I would like to use the ones I have, if possible. 
  Let me know if any of you guys have used them, and do they 
  work OK  thanks, Mike KD4HLH
   
  Michael C. 
  JohnsonKD4HLH













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[Repeater-Builder] delta sx uhf mobile radio as repeater ?

[forfun]

Hello group


I would like to know if delta sx uhf mobile radio can be moded to 
repeater mode and if so does any one have step by step or some 
directions  any information would be a help at this time.

Thanks all
Keith






 
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Re: [Repeater-Builder] D B Products 224 Vhf antenna Question

[Eric Lemmon]

Michael,

I have a DB224-E in service right now, on a hilltop packet node, and it
works very well.  The "E" split is for 138-150 MHz, and this was
originally used by a Government station in the 138-140 MHz band.  The
DB224 is broadband and works well in duplex operation.

Sitting in the garage is a new DB224E-E, which is the elliptical-pattern
version of the same antenna.  This antenna is for a new 2m repeater that
will be at one side of the intended coverage area, and I know it will
perform exactly as I expect.

One of the advantages of a four-bay dipole antenna over a fiberglass
vertical of similar gain is that the vertical bandwidth is remarkably
superior.  This makes the dipole antenna work better for close-in
portables and mobiles that are below the main lobe of the pattern.  It's
also much less prone to wind-induced noise.

73, Eric Lemmon WB6FLY

[EMAIL PROTECTED] wrote:

>  Greetings, All, I am in need to replace a vhf repeater antenna that
> has "gone bad"  and I have come across  two  DB products 224 type VHF
> antennas  Free. They are on 151.XXX now. My question is, has anyone
> out there used this antenna, [10mhz spread, 150-160 MHz] on their
> repeaters?  A new one on the ham band will cost $499 plus shipping
> plus brackets. I would like to use the ones I have, if possible.Let me
> know if any of you guys have used them, and do they work OK  thanks,
> Mike KD4HLH






 
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Re: [Repeater-Builder] D B Products 224 Vhf antenna Question

[Mike Morris WA6ILQ]

At 07:19 PM 5/24/05, you wrote:

>Greetings, All,
>  I am in need to replace a vhf repeater antenna that has "gone bad"
>   and I have come across  two  DB products 224 type VHF antennas
>   Free. They are on 151.XXX now. My question is, has anyone out there 
> used this antenna, [10mhz spread, 150-160 MHz] on their repeaters?

You will find that a large number of ham system use '224s or '228s
(two 224's on one 40' mast).  Look at www.repeater-builder.com, then
select the "Antenna Systems" page, then scroll down about 2/3 of
the way to the "Antennas" section, then scroll down to the Phelps
Dodge section.  You will find  a lot of '224 info.

>A new one on the ham band will cost $499 plus shipping plus brackets. I 
>would like to use the ones I have, if possible.
>Let me know if any of you guys have used them, and do they work 
>OK  thanks, Mike KD4HLH

You will want to take them apart, clean up the joints, use DeOxIt on
them, and reassemble with stainless steel, and put a split washer
(also stainless steel) on every bolt.  You will want to use non-acidic
RTV on the coax-to-loop connections. Do that and you can ignore it
for 20 years, unless you are in a salt water / coastline environment.

If the harness looks like it's falling apart, bite the bullet and order a 
new one.

>Michael C. Johnson
>KD4HLH

Folks have taken the 160-170MHz ones and cut the loops
and lengthened them by splicing in (welding in) pieces of
aluminum rod to make the elements the proper length for
the 130-150 MHz range.  Someone was going to shoot
some pictures for a photo article for the web page on how
to do that but I never got anything.

Mike WA6ILQ





 
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Re: [Repeater-Builder] I need "professional" help

[Eric Lemmon]

Jeff,

The best way to locate someone to install your antenna is to contact each
of the licensees in that area, and find out what riggers they employ.  You
can also contact the chief engineers at local broadcast stations, for the
same info.

Be aware that, depending upon the proximity and power of any other
stations in the immediate area, the rigger may have to request that one or
more transmitters be shut down while he works.  This may incur a
significant cost.

73, Eric Lemmon WB6FLY

Jeff wrote:

> I am looking for a competent insured "Tower Climber" in the Los
> Angeles California area willing to install my new antenna system for
> my UHF repeater. The tower is a small 3 sided 3 section self supported
> structure rising approximately 60 feet above the 7800 foot mountain
> top in the San Bernardino mountains area. I have a new Hustler Spirit
> 14 foot tall UHF antenna with mounting hardware and Andrews 7/8 hard
> line and L5NF connectors that will need to be professionally installed
> and professionally secured to the tower structure.






 
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Re: [Repeater-Builder] I need "professional" help

[Maire-Radios]

you would do better with a DB antenna.  better unit and longer life.  


- Original Message - 
From: "Jeff" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, May 24, 2005 9:48 PM
Subject: [Repeater-Builder] I need "professional" help


>I am looking for a competent insured "Tower Climber" in the Los
> Angeles California area willing to install my new antenna system for
> my UHF repeater. The tower is a small 3 sided 3 section self supported
> structure rising approximately 60 feet above the 7800 foot mountain
> top in the San Bernardino mountains area. I have a new Hustler Spirit
> 14 foot tall UHF antenna with mounting hardware and Andrews 7/8 hard
> line and L5NF connectors that will need to be professionally installed
> and professionally secured to the tower structure.
> 
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
>





 
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Re: [Repeater-Builder] D B Products 224 Vhf antenna Question

[Maire-Radios]

not sure how it will 
do,  but I need to do the same in the near further.  any thoughts or 
actions here?
If not will advise as soon 
as we try it.
 
thanks  
John
 
 

  - Original Message - 
  From: 
  [EMAIL PROTECTED] 
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Tuesday, May 24, 2005 10:19 
PM
  Subject: [Repeater-Builder] D B Products 
  224 Vhf antenna Question
  
  Greetings, All,
   I am in need to replace a vhf repeater antenna that 
  has "gone bad"
    and I have come across  two  DB products 
  224 type VHF antennas 
    Free. They are on 151.XXX now. My question is, has 
  anyone out there used this antenna, [10mhz spread, 150-160 MHz] on their 
  repeaters?  A new one on the ham band will cost $499 plus shipping plus 
  brackets. I would like to use the ones I have, if possible. 
  Let me know if any of you guys have used them, and do they 
  work OK  thanks, Mike KD4HLH
   
  Michael C. 
  JohnsonKD4HLH













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[Repeater-Builder] D B Products 224 Vhf antenna Question

[iamkd4hlh]

Greetings, All,
 I am in need to replace a vhf repeater antenna that has 
"gone bad"
  and I have come across  two  DB products 224 
type VHF antennas 
  Free. They are on 151.XXX now. My question is, has 
anyone out there used this antenna, [10mhz spread, 150-160 MHz] on their 
repeaters?  A new one on the ham band will cost $499 plus shipping plus 
brackets. I would like to use the ones I have, if possible. 
Let me know if any of you guys have used them, and do they 
work OK  thanks, Mike KD4HLH
 
Michael C. 
JohnsonKD4HLH













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RE: [Repeater-Builder] Re: Info needed on Standard RPA-5/90WA

[N9WYS]

Hmmm... That's interesting.  I like the idea of the muffin fan to assist the
cooling.  Nice touch!  I guess I'll need to do that if I'm going to put it
on a ham repeater.

Thanks!
Mark - N9WYS

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Brent
Sent: Tuesday, May 24, 2005 6:09 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Info needed on Standard RPA-5/90WA

I have two of them in use and one in vhf and  the vhf is a 150w and one of
my uhf are a rpa 5/70  5watt in a 70 watt out and i see you have a 5 in 90
out..  the amp is not adjustable, and it will disapate heat very quickly
I use a  6" muffin fan on the amp with a 100deg thermal switch to activete
them..
they are reated " they say 100% duty cycle for the 70 and 50 and 35 watt,
but the 90, 110, and 150  is 60% duty





 
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[Repeater-Builder] I need "professional" help

[Jeff]

I am looking for a competent insured "Tower Climber" in the Los
Angeles California area willing to install my new antenna system for
my UHF repeater. The tower is a small 3 sided 3 section self supported
structure rising approximately 60 feet above the 7800 foot mountain
top in the San Bernardino mountains area. I have a new Hustler Spirit
14 foot tall UHF antenna with mounting hardware and Andrews 7/8 hard
line and L5NF connectors that will need to be professionally installed
and professionally secured to the tower structure.







 
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[Repeater-Builder] Re: Anyone know a source for 2SD1434 transistors?

[gm7svk]

Matt, try 4 Star Electronics

Doug

--- In Repeater-Builder@yahoogroups.com, "Matt" <[EMAIL PROTECTED]> wrote:
> They're UHF 80W PA transistors, NPN .
> 
> Any help greatly appreciated.
> 
> Thanks,
> 
> Matt
> G4RKY
> 
> 
>   
>   
>   
> ___ 
> Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide 
with voicemail http://uk.messenger.yahoo.com








 
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RE: [Repeater-Builder] need some advice

[South Hills ARC]

Hi Don,

I have two of these controllers. The controller doesn't offer a time
announcement.
As for the voice announcement, you need the external DVR (digital voice
recorder) board which is
accessed/controlled by the RC-1000 controller.

- Jim

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Donnie Q
Sent: Tuesday, May 24, 2005 5:06 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] need some advice


I just bought a RC-1000V controller, what I need to know is how do i
get the time to be brocasted on the air. and also I hear on other
repeaters announcments and different voices. I know this must be done
by a aux board but not sure what it is. thank you guys for being here
and it was great to see some of you at dayton.

W8RIF
Don







Yahoo! Groups Links













 
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[Repeater-Builder] Re: Anyone know a source for 2SD1434 transistors?

[gm7svk]

Matt, try 4 Star Electronics for information etc.

Doug



--- In Repeater-Builder@yahoogroups.com, "Matt" <[EMAIL PROTECTED]> wrote:
> They're UHF 80W PA transistors, NPN .
> 
> Any help greatly appreciated.
> 
> Thanks,
> 
> Matt
> G4RKY
> 
> 
>   
>   
>   
> ___ 
> Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide 
with voicemail http://uk.messenger.yahoo.com








 
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Re: [Repeater-Builder] Re: Info needed on Standard RPA-5/90WA

[Brent]

I have two of them in use and one in vhf and  the vhf is a 150w and one of
my uhf are a rpa 5/70  5watt in a 70 watt out
and  i see you have a 5 in 90 out..  the amp is not adjustable, and  it will
disapate heat very quickly
I use a  6" muffin fan on the amp with a 100deg thermal switch to activete
them..
they are reated " they say 100% duty cycle for the 70 and 50 and 35 watt,
but the 90, 110, and 150  is 60% duty

- Original Message -
From: "DCFluX" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, May 24, 2005 4:46 PM
Subject: Re: [Repeater-Builder] Re: Info needed on Standard RPA-5/90WA


> I have one.  I believe it is continuous duty.  These came with the UHF
> RPT-21 and are driven from 5-10 watts.
>
> On 5/24/05, skipp025 <[EMAIL PROTECTED]> wrote:
> > Email me a picture of two of it.  While I don't
> > sometimes remember specific model numbers, I can
> > probably tell you by looking at it what it's
> > real world spec is. I might have a manual for it
> > in my files.
> >
> > skipp
> >
> > skipp025 at yahoo.com
> > [EMAIL PROTECTED]
> >
> >
> > > "n9wys" <[EMAIL PROTECTED]> wrote:
> > > C'mon, guys!! Doesn't ANYONE know about this animal??  I've tried
> > > searching the internet (including Vertex/Standard's webpage) with no
> > > luck.
> > >
> > > Mark - N9WYS
> > >
> > > --- In Repeater-Builder@yahoogroups.com, "Mark Tomany" <[EMAIL PROTECTED]>
> > > wrote:
> > > I'd like some information on this Power Amp:
> > >
> > > Standard UHF RF Power Amplifier
> > > Model RPA-5/90WA
> > > 25A input at 12VDC
> > >
> > > The heat sink is finned aluminum, measures ~19.5 x ~10.5 inches, and
> > > is
> > > notched for rack mounting.
> > >
> > > Is this amp rated for continuous duty at full output, or is it
> > > adjustable to a level where it will "survive" in ham radio
> > > service?
> > > Also, if anyone can point me toward any documentation on it, I'd
> > > be
> > > much obliged.
> > >
> > > Thanks!
> > > Mark – N9WYS
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
> -
>
> N–ž~ŠzL


---
[This E-mail scanned for viruses at TNWEB LLC]





 
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Re: [Repeater-Builder] Re: Info needed on Standard RPA-5/90WA

[DCFluX]

I have one.  I believe it is continuous duty.  These came with the UHF
RPT-21 and are driven from 5-10 watts.

On 5/24/05, skipp025 <[EMAIL PROTECTED]> wrote:
> Email me a picture of two of it.  While I don't
> sometimes remember specific model numbers, I can
> probably tell you by looking at it what it's
> real world spec is. I might have a manual for it
> in my files.
> 
> skipp
> 
> skipp025 at yahoo.com
> [EMAIL PROTECTED]
> 
> 
> > "n9wys" <[EMAIL PROTECTED]> wrote:
> > C'mon, guys!! Doesn't ANYONE know about this animal??  I've tried
> > searching the internet (including Vertex/Standard's webpage) with no
> > luck.
> >
> > Mark - N9WYS
> >
> > --- In Repeater-Builder@yahoogroups.com, "Mark Tomany" <[EMAIL PROTECTED]>
> > wrote:
> > I'd like some information on this Power Amp:
> >
> > Standard UHF RF Power Amplifier
> > Model RPA-5/90WA
> > 25A input at 12VDC
> >
> > The heat sink is finned aluminum, measures ~19.5 x ~10.5 inches, and
> > is
> > notched for rack mounting.
> >
> > Is this amp rated for continuous duty at full output, or is it
> > adjustable to a level where it will "survive" in ham radio
> > service?
> > Also, if anyone can point me toward any documentation on it, I'd
> > be
> > much obliged.
> >
> > Thanks!
> > Mark – N9WYS
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
>




 
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[Repeater-Builder] Anyone know a source for 2SD1434 transistors?

[Matt]

They're UHF 80W PA transistors, NPN .

Any help greatly appreciated.

Thanks,

Matt
G4RKY





___ 
Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail 
http://uk.messenger.yahoo.com




 
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[Repeater-Builder] need some advice

[Donnie Q]

I just bought a RC-1000V controller, what I need to know is how do i 
get the time to be brocasted on the air. and also I hear on other 
repeaters announcments and different voices. I know this must be done 
by a aux board but not sure what it is. thank you guys for being here 
and it was great to see some of you at dayton.

W8RIF
Don






 
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[Repeater-Builder] UHF Micor Mobile Manual?

[Nick Papadonis]

Does anyone have this in PDF format?  I need to retune a UHF Micor
Mobile so it can be used as a repeater.

Thanks






 
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Re: [Repeater-Builder] UHF ham band offset dipole array availability

[Russ]

Hey Steve,
Not as well as one for the 440-450 would work.
You can still buy the DB-411 (NEW) for 440-450.
All so the DB-408 for 440 works very well if you
do not need every thing going in one direction. Omni or
Quasi-omni
Good Luck,
Russ, W3CH
- Original Message - 
From: "Steven Passmore, kf6fkk" <[EMAIL PROTECTED]>
To: 
Sent: Saturday, May 21, 2005 1:30 AM
Subject: [Repeater-Builder] UHF ham band offset dipole array availability


> I'm looking for a UHF ham band antenna with an offset pattern like the
> DB-411.  Is it possible to get a ham band DB-411 or are there any
comparable
> antennas available that wont break the bank?  I don't need anything
> particularly heavy duty as it will be used in a mild climate low wind
> situation.   I've heard of people using a 450 DB-411 in the ham band, how
> significantly will that impair performance?
>
> Thanks
> Steve,
> kf6fkk
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>







 
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[Repeater-Builder] Micor Mobile PL Enc/Dec

[Nick Papadonis]

I have a UHF Micor mobile and would like to add a PL Encoder/Decoder to
it for CTCSS operation.  Does anyone have any suggestions or info on
which signals to tap?  Should I seek an off the shelf unit (not sure
which are available anymore) or build one with an ASIC?

There are Micor PL decode boards available on Ebay, however I haven't
seen encode boards.

Thanks,
Nick KB1GZN Boston, MA






 
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[Repeater-Builder] Seeking Mitrek LB/6M Channel Elements...

[Nick Papadonis]

I'm looking for two pairs for low band channel elements.  Does anyone
have any or know where to find?

Thanks

Nick, KB1GZN Boston, MA






 
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Re: [Repeater-Builder] Re: Poor Repeater RX

[albemarle7]

Novice license? Old call KN2BDK. (8-20-52). It was really tough removing 
desense in the crystal set receiver caused by spark gap transmitter. 
Been trying ever since, haven't figured it out yet. 
Gary K2UQ
 













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[Repeater-Builder] Re: Info needed on Standard RPA-5/90WA

[skipp025]

Email me a picture of two of it.  While I don't 
sometimes remember specific model numbers, I can 
probably tell you by looking at it what it's 
real world spec is. I might have a manual for it 
in my files. 

skipp

skipp025 at yahoo.com 
[EMAIL PROTECTED] 


> "n9wys" <[EMAIL PROTECTED]> wrote:
> C'mon, guys!! Doesn't ANYONE know about this animal??  I've tried 
> searching the internet (including Vertex/Standard's webpage) with no 
> luck.
> 
> Mark - N9WYS
> 
> --- In Repeater-Builder@yahoogroups.com, "Mark Tomany" <[EMAIL PROTECTED]> 
> wrote:
> I'd like some information on this Power Amp:
>  
> Standard UHF RF Power Amplifier
> Model RPA-5/90WA
> 25A input at 12VDC
>  
> The heat sink is finned aluminum, measures ~19.5 x ~10.5 inches, and
> is
> notched for rack mounting.
> 
> Is this amp rated for continuous duty at full output, or is it 
> adjustable to a level where it will "survive" in ham radio
> service?  
> Also, if anyone can point me toward any documentation on it, I'd
> be 
> much obliged.
>  
> Thanks!
> Mark – N9WYS






 
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Re: [Repeater-Builder] Re: Poor Repeater RX

[Neil McKie]

  Finally?  QCWA Member?  

  I joined QCWA 20 years ago as a Technician Class License holder. 

  Neil 


Mike Morris WA6ILQ wrote:
> 
> Now Neil, be nice.
> 
> Just because your license was endorsed by Edwin
> Armstrong doesn't mean that you can't be pleasant
> to us new QCWA members.
> 
> At 09:50 PM 5/23/05, you wrote:
> 
> >   Humpf ... new-comer ...
> >
> >   Neil - WA6KLA
> >
> >
> >"Mark A. Holman" wrote:
> > >
> > > Yep I even recall the Novice Class I had back in 1976 we were
> > > discussing the KC's , MC's to Khz. and Mhz.  was on the exam
> > > probably.
> > >
> > > Mark AB8RU
> > > [EMAIL PROTECTED]
> > >
> > > - Original Message -
> > > From: "Coy Hilton" <[EMAIL PROTECTED]>
> > > To: 
> > > Sent: Sunday, May 22, 2005 12:18 PM
> > > Subject: [Repeater-Builder] Re: Poor Repeater RX
> > >
> > > > Good For you Joe! I too, went through the "cycles-per-second" to
> > > > Hertz transition.
> > > > To all else,
> > > > cycles-per-second = Hertz
> > > > Kilo cycles-per-second = KC = KiloHertz = KHz
> > > > Mega cycles-per-second = MC = MegaHertz = MHz
> > > > From this point add what ever prefix that applies.
> > > > Gee, What kind of table do you need?
> > > > My memory is not real good BUT I CAN remember "cycles-per-second =
> > > > Hertz"
> > > > 73
> > > > AC0Y
> > > > --- In Repeater-Builder@yahoogroups.com, "Joe Jarrett" <[EMAIL 
> > > > PROTECTED]>
> > > > wrote:
> > > > > This has to be OT for this group but the proper conversion would
> > > > be:
> > > > >
> > > > > KiloCycles per Second = KiloHertz.
> > > > >
> > > > > Unfortunately I'm old enough to remember "time before
> > > > KiloHertz" . . . . or maybe its fortunate I've lived to be that old.
> > > > >
> > > > > Joe K5FOG
> > > > >
> > > > > *** REPLY SEPARATOR  ***
> > > > >
> > > > > On 5/21/2005 at 9:32 PM DCFluX wrote:
> > > > >
> > > > > >I've got a kiloCycle to kiloHertz conversion table you can study.
> > > > > >
> > > > > >On 5/21/05, Richard <[EMAIL PROTECTED]> wrote:
> > > > > >> KiloHertz is the correct term!
> > > > > >>
> > > > > >> Richard, N7TGB
> > > > > >>
> > > > > >>
> > > > > >> -Original Message-
> > > > > >> From: Repeater-Builder@yahoogroups.com
> > > > > >> [mailto:[EMAIL PROTECTED] Behalf Of DCFluX
> > > > > >> Sent: Saturday, May 21, 2005 7:17 PM
> > > > > >> To: Repeater-Builder@yahoogroups.com
> > > > > >> Subject: Re: RE : Re: [Repeater-Builder] Poor Repeater RX
> > > > > >>
> > > > > >>
> > > > > >> Don't you mean, kiloCycles?
> > > > > >>
> > > > > >> On 5/21/05, Kevin K. Custer <[EMAIL PROTECTED]> wrote:
> > > > > >> >
> > > > > >> >
> > > > > >> >
> > > > > >> > >--- Original Message ---
> > > > > >> > >From : Eric Lemmon[mailto:[EMAIL PROTECTED]
> > > > > >> > >Sent : 5/21/2005 4:05:15 PM
> > > > > >> > >To : Repeater-Builder@yahoogroups.com
> > > > > >> > >Cc :
> > > > > >> > >Subject : RE : Re: [Repeater-Builder] Poor Repeater RX
> > > > > >> > >
> > > > > >> >  >Alexander,
> > > > > >> > >
> > > > > >> > >The
> > > > > >> > >Sinclair Q-202G duplexer can barely make 85 dB when tuned on
> > > > a network
> > > > > >> > >analyzer, so that's the major part of your desense problem.
> > > > It's only
> > > > > >a
> > > > > >> > >four-cavity duplexer, specified at 80 dB minimum isolation,
> > > > so no
> > > > > >amount
> > > > > >> > >of tuning is going to make it operate at an isolation above
> > > > its design
> > > > > >> > >limit.
> > > > > >> >
> > > > > >> >  While I don't disagree with what has been written, please
> > > > realize that
> > > > > >> > *most* commercial manufacturers 'rate' their highband/2M
> > > > duplexer at
> > > > > >500
> > > > > >> > kiloHertz split, not 600 kiloHertz where most amateur 2 meter
> > > > repeaters
> > > > > >> are
> > > > > >> > operated.  This added frequency separation allows for the
> > > > duplexer to
> > > > > >> > provide more than the stated isolation at the 500 kiloHertz
> > > > > >specification.
> > > > > >> >
> > > > > >> >  The Wacom WP-641 is specified at 85 dB of isolation at a 500
> > > > kiloHertz
> > > > > >> > split, but provides 93 dB of isolation at 600 kiloHertz.  The
> > > > Sinclair
> > > > > >> Q202G
> > > > > >> > is similar in its factory specifications, and isolation
> > > > provided.
> > > > > >> >
> > > > > >> >  Kevin Custer
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>





 
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Re: [Repeater-Builder] Re: Poor Repeater RX

[Neil McKie]

  ... snicker ... 

  You are 20 months younger then me too ... 

  Neil 

vmckever wrote:
> 
> Be nice Neil.  Some of us still remember when the Novice was 
> re-introduced.
> 
> Vincent N6OA got mine 50 years ago this year.
> 
> - Original Message -
> From: "Neil McKie" <[EMAIL PROTECTED]>
> To: 
> Sent: Tuesday, May 24, 2005 12:50 AM
> Subject: Re: [Repeater-Builder] Re: Poor Repeater RX
> 
> >
> >  Humpf ... new-comer ...
> >
> >  Neil - WA6KLA
> >
> >
> > "Mark A. Holman" wrote:
> >>
> >> Yep I even recall the Novice Class I had back in 1976 we were
> >> discussing the KC's , MC's to Khz. and Mhz.  was on the exam
> >> probably.
> >>
> >> Mark AB8RU
> >> [EMAIL PROTECTED]
> >>
> >> - Original Message -
> >> From: "Coy Hilton" <[EMAIL PROTECTED]>
> >> To: 
> >> Sent: Sunday, May 22, 2005 12:18 PM
> >> Subject: [Repeater-Builder] Re: Poor Repeater RX
> >>
> >> > Good For you Joe! I too, went through the "cycles-per-second" to
> >> > Hertz transition.
> >> > To all else,
> >> > cycles-per-second = Hertz
> >> > Kilo cycles-per-second = KC = KiloHertz = KHz
> >> > Mega cycles-per-second = MC = MegaHertz = MHz
> >> > From this point add what ever prefix that applies.
> >> > Gee, What kind of table do you need?
> >> > My memory is not real good BUT I CAN remember "cycles-per-second =
> >> > Hertz"
> >> > 73
> >> > AC0Y
> >> > --- In Repeater-Builder@yahoogroups.com, "Joe Jarrett" <[EMAIL 
> >> > PROTECTED]>
> >> > wrote:
> >> > > This has to be OT for this group but the proper conversion would
> >> > be:
> >> > >
> >> > > KiloCycles per Second = KiloHertz.
> >> > >
> >> > > Unfortunately I'm old enough to remember "time before
> >> > KiloHertz" . . . . or maybe its fortunate I've lived to be that old.
> >> > >
> >> > > Joe K5FOG
> >> > >
> >> > > *** REPLY SEPARATOR  ***
> >> > >
> >> > > On 5/21/2005 at 9:32 PM DCFluX wrote:
> >> > >
> >> > > >I've got a kiloCycle to kiloHertz conversion table you can study.
> >> > > >
> >> > > >On 5/21/05, Richard <[EMAIL PROTECTED]> wrote:
> >> > > >> KiloHertz is the correct term!
> >> > > >>
> >> > > >> Richard, N7TGB
> >> > > >>
> >> > > >>
> >> > > >> -Original Message-
> >> > > >> From: Repeater-Builder@yahoogroups.com
> >> > > >> [mailto:[EMAIL PROTECTED] Behalf Of DCFluX
> >> > > >> Sent: Saturday, May 21, 2005 7:17 PM
> >> > > >> To: Repeater-Builder@yahoogroups.com
> >> > > >> Subject: Re: RE : Re: [Repeater-Builder] Poor Repeater RX
> >> > > >>
> >> > > >>
> >> > > >> Don't you mean, kiloCycles?
> >> > > >>
> >> > > >> On 5/21/05, Kevin K. Custer <[EMAIL PROTECTED]> wrote:
> >> > > >> >
> >> > > >> >
> >> > > >> >
> >> > > >> > >--- Original Message ---
> >> > > >> > >From : Eric Lemmon[mailto:[EMAIL PROTECTED]
> >> > > >> > >Sent : 5/21/2005 4:05:15 PM
> >> > > >> > >To : Repeater-Builder@yahoogroups.com
> >> > > >> > >Cc :
> >> > > >> > >Subject : RE : Re: [Repeater-Builder] Poor Repeater RX
> >> > > >> > >
> >> > > >> >  >Alexander,
> >> > > >> > >
> >> > > >> > >The
> >> > > >> > >Sinclair Q-202G duplexer can barely make 85 dB when tuned on
> >> > a network
> >> > > >> > >analyzer, so that's the major part of your desense problem.
> >> > It's only
> >> > > >a
> >> > > >> > >four-cavity duplexer, specified at 80 dB minimum isolation,
> >> > so no
> >> > > >amount
> >> > > >> > >of tuning is going to make it operate at an isolation above
> >> > its design
> >> > > >> > >limit.
> >> > > >> >
> >> > > >> >  While I don't disagree with what has been written, please
> >> > realize that
> >> > > >> > *most* commercial manufacturers 'rate' their highband/2M
> >> > duplexer at
> >> > > >500
> >> > > >> > kiloHertz split, not 600 kiloHertz where most amateur 2 meter
> >> > repeaters
> >> > > >> are
> >> > > >> > operated.  This added frequency separation allows for the
> >> > duplexer to
> >> > > >> > provide more than the stated isolation at the 500 kiloHertz
> >> > > >specification.
> >> > > >> >
> >> > > >> >  The Wacom WP-641 is specified at 85 dB of isolation at a 500
> >> > kiloHertz
> >> > > >> > split, but provides 93 dB of isolation at 600 kiloHertz.  The
> >> > Sinclair
> >> > > >> Q202G
> >> > > >> > is similar in its factory specifications, and isolation
> >> > provided.
> >> > > >> >
> >> > > >> >  Kevin Custer
> >> > > >> >
> >> > > >> >
> >> > > >> >
> >> > > >> >
> >> > > >> >
> >> > > >> >
> >> > > >> >
> >> > > >> >  
> >> > > >> >  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! Groups is subject to the Yahoo! Terms of
> >> > Service.
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >> Yahoo! Groups Links
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > 

Re: [Repeater-Builder] DB-4032 Duplexer Info needed

[Mike Morris WA6ILQ]

There is the data sheet, the tuning instructions and a conversion article
on  under DB
duplexers.

Mike WA6ILQ

At 07:13 AM 5/24/05, you wrote:

>Does anyone have any documentation on the Decibel Products DB4203
>vhf-lowband duplexer?
>
>
>
>Thanks in advance,
>
>Mark C.  KB4CVN
>Monroe, VA
>
>__
>Do You Yahoo!?
>Tired of spam?  Yahoo! Mail has the best spam protection around
>http://mail.yahoo.com
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>





 
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RE: [Repeater-Builder] DB-4032 Duplexer Info needed

[Mike Perryman]

Yep,
I,ve got the catalog info if you need it...  how big of a file can you
handle?
mike

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Mark Cobbeldick
[KB4CVN] Home
Sent: Tuesday, May 24, 2005 10:14 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED];
[EMAIL PROTECTED]; Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] DB-4032 Duplexer Info needed


Does anyone have any documentation on the Decibel Products DB4203<<
>>>10 out of 3 engineers are dyslexic...<<<
vhf-lowband duplexer?



Thanks in advance,

Mark C.  KB4CVN
Monroe, VA

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Re: [Repeater-Builder] Re: Poor Repeater RX

[Mike Morris WA6ILQ]

Now Neil, be nice.

Just because your license was endorsed by Edwin
Armstrong doesn't mean that you can't be pleasant
to us new QCWA members.

At 09:50 PM 5/23/05, you wrote:

>   Humpf ... new-comer ...
>
>   Neil - WA6KLA
>
>
>"Mark A. Holman" wrote:
> >
> > Yep I even recall the Novice Class I had back in 1976 we were
> > discussing the KC's , MC's to Khz. and Mhz.  was on the exam
> > probably.
> >
> > Mark AB8RU
> > [EMAIL PROTECTED]
> >
> > - Original Message -
> > From: "Coy Hilton" <[EMAIL PROTECTED]>
> > To: 
> > Sent: Sunday, May 22, 2005 12:18 PM
> > Subject: [Repeater-Builder] Re: Poor Repeater RX
> >
> > > Good For you Joe! I too, went through the "cycles-per-second" to
> > > Hertz transition.
> > > To all else,
> > > cycles-per-second = Hertz
> > > Kilo cycles-per-second = KC = KiloHertz = KHz
> > > Mega cycles-per-second = MC = MegaHertz = MHz
> > > From this point add what ever prefix that applies.
> > > Gee, What kind of table do you need?
> > > My memory is not real good BUT I CAN remember "cycles-per-second =
> > > Hertz"
> > > 73
> > > AC0Y
> > > --- In Repeater-Builder@yahoogroups.com, "Joe Jarrett" <[EMAIL PROTECTED]>
> > > wrote:
> > > > This has to be OT for this group but the proper conversion would
> > > be:
> > > >
> > > > KiloCycles per Second = KiloHertz.
> > > >
> > > > Unfortunately I'm old enough to remember "time before
> > > KiloHertz" . . . . or maybe its fortunate I've lived to be that old.
> > > >
> > > > Joe K5FOG
> > > >
> > > > *** REPLY SEPARATOR  ***
> > > >
> > > > On 5/21/2005 at 9:32 PM DCFluX wrote:
> > > >
> > > > >I've got a kiloCycle to kiloHertz conversion table you can study.
> > > > >
> > > > >On 5/21/05, Richard <[EMAIL PROTECTED]> wrote:
> > > > >> KiloHertz is the correct term!
> > > > >>
> > > > >> Richard, N7TGB
> > > > >>
> > > > >>
> > > > >> -Original Message-
> > > > >> From: Repeater-Builder@yahoogroups.com
> > > > >> [mailto:[EMAIL PROTECTED] Behalf Of DCFluX
> > > > >> Sent: Saturday, May 21, 2005 7:17 PM
> > > > >> To: Repeater-Builder@yahoogroups.com
> > > > >> Subject: Re: RE : Re: [Repeater-Builder] Poor Repeater RX
> > > > >>
> > > > >>
> > > > >> Don't you mean, kiloCycles?
> > > > >>
> > > > >> On 5/21/05, Kevin K. Custer <[EMAIL PROTECTED]> wrote:
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >> > >--- Original Message ---
> > > > >> > >From : Eric Lemmon[mailto:[EMAIL PROTECTED]
> > > > >> > >Sent : 5/21/2005 4:05:15 PM
> > > > >> > >To : Repeater-Builder@yahoogroups.com
> > > > >> > >Cc :
> > > > >> > >Subject : RE : Re: [Repeater-Builder] Poor Repeater RX
> > > > >> > >
> > > > >> >  >Alexander,
> > > > >> > >
> > > > >> > >The
> > > > >> > >Sinclair Q-202G duplexer can barely make 85 dB when tuned on
> > > a network
> > > > >> > >analyzer, so that's the major part of your desense problem.
> > > It's only
> > > > >a
> > > > >> > >four-cavity duplexer, specified at 80 dB minimum isolation,
> > > so no
> > > > >amount
> > > > >> > >of tuning is going to make it operate at an isolation above
> > > its design
> > > > >> > >limit.
> > > > >> >
> > > > >> >  While I don't disagree with what has been written, please
> > > realize that
> > > > >> > *most* commercial manufacturers 'rate' their highband/2M
> > > duplexer at
> > > > >500
> > > > >> > kiloHertz split, not 600 kiloHertz where most amateur 2 meter
> > > repeaters
> > > > >> are
> > > > >> > operated.  This added frequency separation allows for the
> > > duplexer to
> > > > >> > provide more than the stated isolation at the 500 kiloHertz
> > > > >specification.
> > > > >> >
> > > > >> >  The Wacom WP-641 is specified at 85 dB of isolation at a 500
> > > kiloHertz
> > > > >> > split, but provides 93 dB of isolation at 600 kiloHertz.  The
> > > Sinclair
> > > > >> Q202G
> > > > >> > is similar in its factory specifications, and isolation
> > > provided.
> > > > >> >
> > > > >> >  Kevin Custer





 
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[Repeater-Builder] DB-4032 Duplexer Info needed

[Mark Cobbeldick \[KB4CVN\] Home]

Does anyone have any documentation on the Decibel Products DB4203
vhf-lowband duplexer?



Thanks in advance,

Mark C.  KB4CVN
Monroe, VA

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[Repeater-Builder] Re: Info needed on Standard RPA-5/90WA

[n9wys]

C'mon, guys!! Doesn't ANYONE know about this animal??  I've tried 
searching the internet (including Vertex/Standard's webpage) with no 
luck.

Mark - N9WYS

--- In Repeater-Builder@yahoogroups.com, "Mark Tomany" <[EMAIL PROTECTED]> 
wrote:
I'd like some information on this Power Amp:
 
Standard UHF RF Power Amplifier
Model RPA-5/90WA
25A input at 12VDC
 
The heat sink is finned aluminum, measures ~19.5 x ~10.5 inches, and
is
notched for rack mounting.

Is this amp rated for continuous duty at full output, or is it 
adjustable to a level where it will "survive" in ham radio
service?  
Also, if anyone can point me toward any documentation on it, I'd
be 
much obliged.
 
Thanks!
Mark – N9WYS






 
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[Repeater-Builder] today live on echolink/irlp ISS qso with School in California 17:21utc

[ian abel]

today live on echolink/irlp ISS qso with School in California 17:21utc


Detail for ISS contact with Coronado School in California on 5/24/05 
at 17:21UTC
  
Coordinator: Dieter Schliemann,KX4Y Event Type: School Contact 
Start Date (mm/dd/yy): 05/24/05  End Date (mm/dd/yy): 05/24/05 
Open to the Public: Yes  Special Event Callsign: NA1SS 

--
--
 
City: Coronado  State/Province: CA 
Country: US 

--
--
 
Additional Comments:
 
We hope to see you join us in listening to this contact between the 
ISS and the Coronado School in California on 24 May 2005 on the 
EchoLink AMSAT and EDU_NET servers. The event will start at 17:21UTC. 
Please give the EDU_NET server your preference over the AMSAT server 
for your connection. This will keep the load light on the AMSAT 
server, assuring us of better audio quality all around.

If using IRLP is more convenient for you than using EchoLink, please 
connect to the IRLP reflector 9010. The ARISS IRLP Team is feeding 
the audio into that reflector. No prior approval is needed to connect 
to the IRLP reflector 9010.

Thanks for your interest and 73, de Dieter kx4y
 
  







 
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Re: [Repeater-Builder] Re: Poor Repeater RX

[vmckever]

Be nice Neil.  Some of us still remember when the Novice was re-introduced.

Vincent N6OA got mine 50 years ago this year.

- Original Message - 
From: "Neil McKie" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, May 24, 2005 12:50 AM
Subject: Re: [Repeater-Builder] Re: Poor Repeater RX


> 
>  Humpf ... new-comer ... 
> 
>  Neil - WA6KLA 
> 
> 
> "Mark A. Holman" wrote:
>> 
>> Yep I even recall the Novice Class I had back in 1976 we were 
>> discussing the KC's , MC's to Khz. and Mhz.  was on the exam 
>> probably.
>> 
>> Mark AB8RU
>> [EMAIL PROTECTED]
>> 
>> - Original Message -
>> From: "Coy Hilton" <[EMAIL PROTECTED]>
>> To: 
>> Sent: Sunday, May 22, 2005 12:18 PM
>> Subject: [Repeater-Builder] Re: Poor Repeater RX
>> 
>> > Good For you Joe! I too, went through the "cycles-per-second" to
>> > Hertz transition.
>> > To all else,
>> > cycles-per-second = Hertz
>> > Kilo cycles-per-second = KC = KiloHertz = KHz
>> > Mega cycles-per-second = MC = MegaHertz = MHz
>> > From this point add what ever prefix that applies.
>> > Gee, What kind of table do you need?
>> > My memory is not real good BUT I CAN remember "cycles-per-second =
>> > Hertz"
>> > 73
>> > AC0Y
>> > --- In Repeater-Builder@yahoogroups.com, "Joe Jarrett" <[EMAIL PROTECTED]>
>> > wrote:
>> > > This has to be OT for this group but the proper conversion would
>> > be:
>> > >
>> > > KiloCycles per Second = KiloHertz.
>> > >
>> > > Unfortunately I'm old enough to remember "time before
>> > KiloHertz" . . . . or maybe its fortunate I've lived to be that old.
>> > >
>> > > Joe K5FOG
>> > >
>> > > *** REPLY SEPARATOR  ***
>> > >
>> > > On 5/21/2005 at 9:32 PM DCFluX wrote:
>> > >
>> > > >I've got a kiloCycle to kiloHertz conversion table you can study.
>> > > >
>> > > >On 5/21/05, Richard <[EMAIL PROTECTED]> wrote:
>> > > >> KiloHertz is the correct term!
>> > > >>
>> > > >> Richard, N7TGB
>> > > >>
>> > > >>
>> > > >> -Original Message-
>> > > >> From: Repeater-Builder@yahoogroups.com
>> > > >> [mailto:[EMAIL PROTECTED] Behalf Of DCFluX
>> > > >> Sent: Saturday, May 21, 2005 7:17 PM
>> > > >> To: Repeater-Builder@yahoogroups.com
>> > > >> Subject: Re: RE : Re: [Repeater-Builder] Poor Repeater RX
>> > > >>
>> > > >>
>> > > >> Don't you mean, kiloCycles?
>> > > >>
>> > > >> On 5/21/05, Kevin K. Custer <[EMAIL PROTECTED]> wrote:
>> > > >> >
>> > > >> >
>> > > >> >
>> > > >> > >--- Original Message ---
>> > > >> > >From : Eric Lemmon[mailto:[EMAIL PROTECTED]
>> > > >> > >Sent : 5/21/2005 4:05:15 PM
>> > > >> > >To : Repeater-Builder@yahoogroups.com
>> > > >> > >Cc :
>> > > >> > >Subject : RE : Re: [Repeater-Builder] Poor Repeater RX
>> > > >> > >
>> > > >> >  >Alexander,
>> > > >> > >
>> > > >> > >The
>> > > >> > >Sinclair Q-202G duplexer can barely make 85 dB when tuned on
>> > a network
>> > > >> > >analyzer, so that's the major part of your desense problem.
>> > It's only
>> > > >a
>> > > >> > >four-cavity duplexer, specified at 80 dB minimum isolation,
>> > so no
>> > > >amount
>> > > >> > >of tuning is going to make it operate at an isolation above
>> > its design
>> > > >> > >limit.
>> > > >> >
>> > > >> >  While I don't disagree with what has been written, please
>> > realize that
>> > > >> > *most* commercial manufacturers 'rate' their highband/2M
>> > duplexer at
>> > > >500
>> > > >> > kiloHertz split, not 600 kiloHertz where most amateur 2 meter
>> > repeaters
>> > > >> are
>> > > >> > operated.  This added frequency separation allows for the
>> > duplexer to
>> > > >> > provide more than the stated isolation at the 500 kiloHertz
>> > > >specification.
>> > > >> >
>> > > >> >  The Wacom WP-641 is specified at 85 dB of isolation at a 500
>> > kiloHertz
>> > > >> > split, but provides 93 dB of isolation at 600 kiloHertz.  The
>> > Sinclair
>> > > >> Q202G
>> > > >> > is similar in its factory specifications, and isolation
>> > provided.
>> > > >> >
>> > > >> >  Kevin Custer
>> > > >> >
>> > > >> >
>> > > >> >
>> > > >> >
>> > > >> >
>> > > >> >
>> > > >> >
>> > > >> >  
>> > > >> >  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! Groups is subject to the Yahoo! Terms of
>> > Service.
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >> Yahoo! Groups Links
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >> Yahoo! Groups Links
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >
>> > > >
>> > > >
>> > > >
>> > > >
>> > > >Yahoo! Groups Links
>> > > >
>> > > >
>> > > >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> 
>>

[Repeater-Builder] CTCSS BOARD FOR KYODO BSR-150 RPT?

[Velissaris Dimitris]

Looking for ctcss encode/decode board of kyodo BSR-150 vhf repeater.
If someone can give me any information..many thanks!







 
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Re: [Repeater-Builder] Transmit Noise

[Neil McKie]

  I have a carefully selected pair of sledgehammers here for use 
 on-site: 8 lb and 20 lb. 

  I seldom need the use of the 20 lb ... that one time use guarantees 
 it will never be needed for that project again.

  Neil - WA6KLA 

Chuck Kelsey wrote:
> 
> A sledgehammer will correct it as well ;-) And the advantage is 
> that you'll never have to worry about tuning later on. 
> 
> Chuck
> WB2EDV
> 
> - Original Message -
> From: "Eric Lemmon" <[EMAIL PROTECTED]>
> To: 
> Sent: Monday, May 23, 2005 9:30 PM
> Subject: Re: [Repeater-Builder] Transmit Noise
> 
> >> Don,
> >
> > You have it right; the correct term is "microphonics."  The IEEE Standard
> > Dictionary of Electrical and Electronics
> > Terms defines microphonics as "The noise caused by mechanical shock or
> > vibration of elements in a system."
> >
> > Tube-type amplifiers are extremely prone to microphonics, since they have
> > grids and plates that can be vibrated
> > easily.  Solid-state devices are much less prone.
> >
> > IMHO, the most frequent culprit of microphonics in recent radio equipment
> > is the thin aluminum shield can over a
> > frequency-determining coil/capacitor combination.  Vibration at an audio
> > rate- such as a human voice- may vibrate the
> > thin shield enough to affect the capacitance to ground of the enclosed
> > tuned circuit and lead to modulation of the RF
> > within.  Total encapsulation with wax or epoxy usually corrects this
> > effect, but it makes it difficult to tune the
> > circuit later.
> >
> > 73, Eric Lemmon WB6FLY
> >
> >>
> >>





 
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