Re: [Repeater-Builder] Re: FS: GE MASTR2 VHF 100w base/repeater

[Kevin Custer]

Hi Ramesh,

You must have tuned in late; the repeater I referred to herein, isn't
'For Sale'.  I have more in this repeater then most have in 3 or four
of them. 

We do however do custom/professional repeater conversions from
commercial gear such as the GE Mastr II and Motorola Micor, from either
Stations or Mobiles.  Go here to view what we have to offer:
http://www.repeater-builder.com/rbtip/custombuilt.html

ve3rsd wrote:

  Hi Kevin:

I am new to the world of repeaters and may be in the market for a used
2m repeater.  Could you please let me know what you are asking for the
repeater, whether it comes with a duplexer, and how easy is it to
change the operating frequencies.

If you wish to contact me off-list with pricing, etc., my email addr
is va3uv(at)rac.ca

73 de
Ramesh.



--- In Repeater-Builder@yahoogroups.com, Kevin Custer <[EMAIL PROTECTED]> wrote:
  
  
[EMAIL PROTECTED] wrote:



  Wow Kevin, sounds like you got a [EMAIL PROTECTED] repeater
with 330 watts on 2meters.

Question for you: How many watts ERP is your repeater
putting out? What type of antenna will handle 330
watts?

  

The repeater is actually outputting (and is coordinated for) 250 watts 
into the duplexer.  Subtracting the duplexer insertion loss of 1.5 dB 
(or 29 %), I get about 175 watts to the bottom of the feeder which I 
lose an additional 1/2 a dB or so, so I really get about 158 watts to 
the stick (Sinclair SRL-229) which has a rated gain of 6.1 dBd, so my 
ERP is about 650 watts.  The antenna will handle 300 watts, so I'd need 
to run over 400 watts for that to be a concern.

I have run this station for short periods of time at the 330 watt level 
for testing.  There isn't much difference in ERP between the 250 and

  
  330 
  
  
watt level, so I choose to save on the electric bill and keep the 
coordinator happy and run it at the 1/4 kilowatt level.

Kevin
  















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Re: [Repeater-Builder] Re: FS: GE MASTR2 VHF 100w base/repeater

[Kevin Custer]

[EMAIL PROTECTED] wrote:

>Wow Kevin, sounds like you got a [EMAIL PROTECTED] repeater
>with 330 watts on 2meters.
>
>Question for you: How many watts ERP is your repeater
>putting out? What type of antenna will handle 330
>watts?
>

The repeater is actually outputting (and is coordinated for) 250 watts 
into the duplexer.  Subtracting the duplexer insertion loss of 1.5 dB 
(or 29 %), I get about 175 watts to the bottom of the feeder which I 
lose an additional 1/2 a dB or so, so I really get about 158 watts to 
the stick (Sinclair SRL-229) which has a rated gain of 6.1 dBd, so my 
ERP is about 650 watts.  The antenna will handle 300 watts, so I'd need 
to run over 400 watts for that to be a concern.

I have run this station for short periods of time at the 330 watt level 
for testing.  There isn't much difference in ERP between the 250 and 330 
watt level, so I choose to save on the electric bill and keep the 
coordinator happy and run it at the 1/4 kilowatt level.

Kevin







 
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Re: [Repeater-Builder] Re: FS: GE MASTR2 VHF 100w base/repeater

[kd6hcn]

Kevin, it still rocks!


--- Kevin Custer <[EMAIL PROTECTED]> wrote:

> 
> [EMAIL PROTECTED] wrote:
> 
> >Wow Kevin, sounds like you got a [EMAIL PROTECTED] repeater
> >with 330 watts on 2meters.
> >
> >Question for you: How many watts ERP is your
> repeater
> >putting out? What type of antenna will handle 330
> >watts?
> >
> 
> The repeater is actually outputting (and is
> coordinated for) 250 watts 
> into the duplexer.  Subtracting the duplexer
> insertion loss of 1.5 dB 
> (or 29 %), I get about 175 watts to the bottom of
> the feeder which I 
> lose an additional 1/2 a dB or so, so I really get
> about 158 watts to 
> the stick (Sinclair SRL-229) which has a rated gain
> of 6.1 dBd, so my 
> ERP is about 650 watts.  The antenna will handle 300
> watts, so I'd need 
> to run over 400 watts for that to be a concern.
> 
> I have run this station for short periods of time at
> the 330 watt level 
> for testing.  There isn't much difference in ERP
> between the 250 and 330 
> watt level, so I choose to save on the electric bill
> and keep the 
> coordinator happy and run it at the 1/4 kilowatt
> level.
> 
> Kevin
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> [EMAIL PROTECTED]
> 
>  
> 
> 
> 
> 




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Re: [Repeater-Builder] Re: FS: GE MASTR2 VHF 100w base/repeater

[Kevin Custer]

Coy Hilton wrote:

>You've peaked my interest. Are you running two antennas with this 
>beast, or are you duplexing, If, so what kind of duplexer?
>

Click on the link provided:



Single antenna, simple 4 cavity duplexer.
- tubes are better -

Kevin






 
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Re: [Repeater-Builder] Re: FS: GE MASTR2 VHF 100w base/repeater

[Kevin Custer]

kk2ed wrote:

>Honestly,  I have always been a Motorola person (you are either GE or 
>Moto), and my other repeaters are all Motorola.
>

Okay, but I'll not agree that everyone is 'either' one flavour or the 
other.  I say this as I am (finally) rebuilding my 145.27 machine the 
way I want it.  The repeater is a Motorola Micor Non Unified Chassis.  
The transmitter is built from an old IMTS paging station that originally 
fed 10 watts into the tube PA.  I sold the Motorola tube PA to make room 
for the rest of the goodies.  The receiver shelf was added and the 
control system stripped as I usually do containing only a modified 
Station Control Card.  In addition to the exciter, 10 watt PA, receiver, 
and control shelf, there also resides a RC-96, DVR, and FC-900 stack.  
The original power supply was replaced with TPN1110B so the backup 110 
watt PA could be driven under battery power.  I say 'backup' PA because 
the main PA is a GE 4EF5A1, 330 watt station power amplifier from the 
Mastr Pro/II era.  The GE tube PA resides in its own (GE) cabinet along 
with a front facing exposed metering panel and internal rack mounted 
Mastr II style IMTS power meter/alarm.

In this station, GE and Motorola are married to give (IMHO) the best 
operation from one of the most powerful 2 meter repeaters on the east 
coast. 
Both are simply a joy to service.



Kevin Custer






 
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Re: [Repeater-Builder] Re: FS: GE MASTR2 VHF 100w base/repeater

[kd6hcn]

Wow Kevin, sounds like you got a [EMAIL PROTECTED] repeater
with 330 watts on 2meters.

Question for you: How many watts ERP is your repeater
putting out? What type of antenna will handle 330
watts?

Regards, Barry
--- Kevin Custer <[EMAIL PROTECTED]> wrote:

> 
> kk2ed wrote:
> 
> >Honestly,  I have always been a Motorola person
> (you are either GE or 
> >Moto), and my other repeaters are all Motorola.
> >
> 
> Okay, but I'll not agree that everyone is 'either'
> one flavour or the 
> other.  I say this as I am (finally) rebuilding my
> 145.27 machine the 
> way I want it.  The repeater is a Motorola Micor Non
> Unified Chassis.  
> The transmitter is built from an old IMTS paging
> station that originally 
> fed 10 watts into the tube PA.  I sold the Motorola
> tube PA to make room 
> for the rest of the goodies.  The receiver shelf was
> added and the 
> control system stripped as I usually do containing
> only a modified 
> Station Control Card.  In addition to the exciter,
> 10 watt PA, receiver, 
> and control shelf, there also resides a RC-96, DVR,
> and FC-900 stack.  
> The original power supply was replaced with TPN1110B
> so the backup 110 
> watt PA could be driven under battery power.  I say
> 'backup' PA because 
> the main PA is a GE 4EF5A1, 330 watt station power
> amplifier from the 
> Mastr Pro/II era.  The GE tube PA resides in its own
> (GE) cabinet along 
> with a front facing exposed metering panel and
> internal rack mounted 
> Mastr II style IMTS power meter/alarm.
> 
> In this station, GE and Motorola are married to give
> (IMHO) the best 
> operation from one of the most powerful 2 meter
> repeaters on the east 
> coast. 
> Both are simply a joy to service.
> 
> 
> 
> Kevin Custer
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> [EMAIL PROTECTED]
> 
>  
> 
> 
> 
> 




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