[Repeater-Builder] Re: Anyone try the "new" ID-O-Matic 2?

[kd8biw]

I've not tried the ID2, but I do have the original ID-O-Matic and the connector 
interface hooked to 2 Maxtrac UHF mobiles configured as a portable repeater.  
It works very well, sounds great, and was easy to assemble and install!  I have 
maybe an hour total in assembly, wiring, programming, and tuning.  I'm sure the 
ID2 will be just as good!

Steve KD8BIW

KD8BIW/R  224.580
KD8BIW/R  443.500 (Portable)
N8IHI/R   147.105
W3YXS/R   146.745
KD8JBF/R  444.325

--- In Repeater-Builder@yahoogroups.com, AJ  wrote:
>
> http://www.hamgadgets.com/store/product_info.php?products_id=108
> 
> Looks like it might be a very -very- _very_ simple option for a temp
> repeater setup..
>

[Repeater-Builder] Re: Squelch crash on a MSR2000

[burkleoj]

Lots of good ideas and explanations out there on this issue.

I have never heard of any complaints of this problem on our Micor repeaters 
with users having commercial or decent amateur equipment.

What I do is use both the factory encoder and decoder and modify the station 
for "AND" squelch. I leave the station in PL all the time and only feed the 
controller the COR signal from the squelch gate card. 
I have a combination of Link-Com, Arcom, and ICS controllers in service with 
the Micors with no complaints of squelch crashes on decent radios. One of the 
worst I have found is Yaseu for producing squelch crashes when the repeater 
drops. My Yaseu mobile with or without PL decode turned on has a crash (and it 
is not all that bad) when the repeater drops. My Kenwood amateur radios work 
just fine. As they say.."You can't fix stupid". Well the same is true with some 
of the amateur equipment out there .."You can't always fix a badly designed 
radio either". 

I agree with those who also think it is really time in amateur equipment made 
in this day and age of firmware programmable radios to provide a proper working 
PL/DPL circuit with reverse burst capability and provide some flexibility in 
being able to program different PL/DPL tones for transmit and receive.
 
I am working on my first MSR2000 for amateur service and I was expecting the 
same results from it that we are seeing from the Micors. Maybe I am expecting 
too much, I will see how it comes out in the next couple weeks.

Joe - WA7JAW

--- In Repeater-Builder@yahoogroups.com, "kc7stw"  wrote:
>
> Hello again.
> 
> I have a UHF MSR2000 up and running now.  Most of my radios have the reverse 
> burst in them.  But just about all ham grade radios do not.  Is there a way 
> to get rid of the squelch crash from the repeater when a non commercial grade 
> radio is used?
> 
> Repeater is stock, and would like to try and keep it that way.  Hoping there 
> is maybe a jumper setting or a trick that someone might know.
> 
> Single PL tone card in the repeater, card number trn073app on back, trn5073 
> on front.
> 
> thanks
>

[Repeater-Builder] Maxtrac Channel Control

[kd8biw]

Hello everyone,

Wondering if anyone has been able to implement a Motorola Maxtrac as a 
"frequency agile" remote base on a repeater.  What I would like to do is have a 
16 channel VHF mobile hooked to our repeater, and be able to select a channel 
at will.  I'm sure it can be done, i'm just overlooking something here.  Our 
controller has a 4 pin hex output that I think could do the necessary stuff to 
make it work, just not sure about how it needs hooked to the radio.  Has anyone 
done something similiar to this?  I was looking at NO6B's RBI, and that would 
fit the bill, just wondering if I could make it work with our controller (MCC 
RC-100) or would I have to get a different controller (CAT or LinkCom)?  Thanks 
all!

Steve KD8BIW

KD8BIW/R 224.580
N8IHI/R  147.105
W3YXS/R  146.745
KD8JBF/R 444.325

Re: [Repeater-Builder] Anyone get RSS for MT1000 to run on a Dell M70 in DOS?

[Brian Raker]

There's a reason why I keep my decrepit Toshiba T2450 ;)  486DX2/50
with 4 MB memory and a 2gb CF card plugged into the harddrive slot.
Programs any (/\/\) I throw at it that uses RSS.

-Brian / KF4ZWZ

On Wed, Mar 24, 2010 at 11:00 PM, Yahoo  wrote:
> I use a bootable thumb drive with DOS 6.22 on a dual 1.8gHz laptop without
> any problems. Version R03.01.02 Moslo not needed. Have also used the same
> thumb drive on a Compaq P4 2gHz desktop without any problems. Might be just
> lucky but.
>
> Jeff
>
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of John Gleichweit
> Sent: Wednesday, March 24, 2010 10:28 PM
> To: Repeater-Builder@yahoogroups.com; Discussion of equipment manufactured
> by Motorola; motorola-u...@yahoogroups.com
> Subject: Re: [Repeater-Builder] Anyone get RSS for MT1000 to run on a Dell
> M70 in DOS?
>
> Short answer, no.
>
> Long answer: The MT1000 RSS is part of the Genesis Series, and was written
> long before the Pentium series chips were even though of. The RSS Primer on
> RBTIP and BatLabs both have a deeper explanation.
>
>  --
> John "Smokey Behr" Gleichweit FF1/EMT, CCNA, MCSE
> IPN-CAL023 N6FOG UP Fresno Sub MP183.5 ECV1852
> List Owner x10, Moderator x9 CalEMA 51-507
> http://smokeybehr.blogspot.com
> http://www.myspace.com/smokeybehr
>
>
>
> - Original Message 
>> From: Dennis Wade 
>> To: Discussion of equipment manufactured by Motorola
> ; motorola-u...@yahoogroups.com;
> Repeater-Builder@yahoogroups.com
>> Sent: Tue, March 23, 2010 9:08:26 PM
>> Subject: [Repeater-Builder] Anyone get RSS for MT1000 to run on a Dell M70
> in DOS?
>>
>> Good evening,
>
>         Well the subject line asks the
>> question.    The Dell M70 is a
> 1.8 ghz Pentium M machine.
>> What I've done is this:
>
>
>> Installed DOS7.1 (the Wind98SE one) in a dual boot
> arrangement on its own
>> partition.  I have been able to run RSS under
> this DOS on a different
>> machine.
>
>             Run FIFO.com to
>> disable the FIFO buffer on the 16550A UART
>
>
>>      Run RSS with MoSlo at various slower speeds with both
> methods
>> of slowdown.
>
>
>>    Constructive suggestions welcome...Thanks!
>
>
>>              Dennis
>
> --
> I've been
>> wondering lately..."Where am I going and why AM I in this
> hand
>> basket??"
>
> -
> Dennis L.
>> Wade
> KG6ZI
> Carmichael,
>> CA
>
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>

[Repeater-Builder] Re: Squelch crash on a MSR2000

[Wallace Murray]

Just to add my two cents to the discussion.  The Motorola Micor "and
squelch" modification is not 100 %.  The "and squelch" in the Micor starts
to function after the receiver has about .8 uV of signal.  Encouraging your
users to put their best signal into the repeater will minimize this effect.
The Micor book has the mods.

 

Good luck.  As has been pointed out, the audio delay line almost always
works.

[Repeater-Builder] NOS GE Phoenix For Sale

[Gary]

New/old stock GE VHF Phoenix PSX-200 synthesized mobile for sale. Model
N5HH2w40CB with mic, bracket, original order card, and some wiring.
Absolutely new in the box. I think it's all there but not sure so offered as
is. I need the storage space back so will take $50 with free shipping in the
continental U.S. Reply directly to me (off this email group) if interested.
Thanks.

Gary

RE: [Repeater-Builder] Motorola L1884 For Sale

[Gary]

The charger is spoken for. Thanks all.
Gary

 

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Gary
Sent: Thursday, March 25, 2010 6:39 PM
To: Repeater-Builder@yahoogroups.com; 2wayradios4s...@yahoogroups.com;
radios4s...@yahoogroups.com
Subject: [Repeater-Builder] Motorola L1884 For Sale

 






New/old stock Motorola L1884 rack mount reverting battery charger for high
power MTR2000 repeaters. Made by Argus Technologies and includes manual and
cables. 

Surplus to me and I need the storage space back. Cost a bunch new but will
take $500 with free shipping in the continental U.S. 

Reply directly to me (off of this email group) if interested.
Gary

[Repeater-Builder] Motorola L1884 For Sale

[Gary]

New/old stock Motorola L1884 rack mount reverting battery charger for high
power MTR2000 repeaters. Made by Argus Technologies and includes manual and
cables. 

Surplus to me and I need the storage space back. Cost a bunch new but will
take $500 with free shipping in the continental U.S. 

Reply directly to me (off of this email group) if interested.
Gary

RE: [Repeater-Builder] Anyone try the "new" ID-O-Matic 2?

[Leroy A. M. Baptiste]

Yes Mike I have used and I am still using, GM300
and PRO5100 as repeaters for years and they worked
flawlessly, although I must add they are probably
working in a 25 to 35% duty cycle. I have used a
Rick, ZR310, and Cat 250 as controllers with good
results.

Leroy Baptiste. J39AI 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On
Behalf Of k7pfj
Sent: Thursday, March 25, 2010 5:39 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Anyone try the
"new" ID-O-Matic 2?

  

No but we have used one for the portable ham
repeater using two CDM1250 radios and a RICK unit
that has no CWID. I used the link port of the
controller to use the IDER and works flawless.






Mike Mullarkey K7PFJ
6886 Sage Ave
Firestone, CO 80504
303-736-9693
k7...@skybeam.com  






On Mar 25, 2010, at 2:45 PM, AJ wrote:


  


http://www.hamgadgets.com/store/product_info.php?p
roducts_id=108
 
 
Looks like it might be a very -very-
_very_ simple option for a temp repeater setup..

Re: [Repeater-Builder] Anyone try the "new" ID-O-Matic 2?

[k7pfj]

No but we have used one for the portable ham repeater using two CDM1250 radios 
and a RICK unit that has no CWID. I used the link port of the controller to use 
the IDER and works flawless.





Mike Mullarkey K7PFJ
6886 Sage Ave
Firestone, CO 80504
303-736-9693
k7...@skybeam.com





On Mar 25, 2010, at 2:45 PM, AJ wrote:

> 
> http://www.hamgadgets.com/store/product_info.php?products_id=108
>  
> Looks like it might be a very -very- _very_ simple option for a temp repeater 
> setup..
> 
> 

RE: [Repeater-Builder] Re: opinions for a public safety repeater

[Mark]

Jed,

 

I use a 150W Crescend PA on my 444.5500 Amateur machine with very good
results.  It fried something about a year after we put it in service, and I
took it back to Crescend.  They repaired it under warranty for us.

 

It's been back in service now for over 2 years with no issues.

 

Mark - N9WYS

 

- Original Message - 

From: Jed Barton

Hey there,
so it sounds like the tkr750 might be the way to go.
I've heard the cresend stuff is awesome. 

 

Re: [Repeater-Builder] Re: opinions for a public safety repeater

[Maire-Radios]

I know Kenwood, Icom and Motorola on a open format.


  - Original Message - 
  From: Larry Horlick 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, March 25, 2010 10:51 AM
  Subject: Re: [Repeater-Builder] Re: opinions for a public safety repeater




  The digital side is Kenwood Nextedge, is it not? Does this mean that only 
Kenwood mobiles can be used?

  lh


  On Thu, Mar 25, 2010 at 10:47 AM, Jed Barton  wrote:

  
hmmm, tell me more about that one. Is that the combination analog /
digital?
Did the tkr750 go away? 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Maire-Radios
Sent: Thursday, March 25, 2010 10:22 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: opinions for a public safety repeater

also there is the NXR-710 that replaces the TKR-750



- Original Message - 
From: Maire-Radios  
To: Repeater-Builder@yahoogroups.com
 
Sent: Thursday, March 25, 2010 9:56 AM
Subject: Re: [Repeater-Builder] Re: opinions for a public safety
repeater




look at the new version of the TKR-740 the NXR-700 repeater it
is the way to go and get the ver 2 software.

John
727-441-3250




- Original Message - 
From: skipp025  
To: Repeater-Builder@yahoogroups.com
 
Sent: Thursday, March 25, 2010 8:37 AM
Subject: [Repeater-Builder] Re: opinions for a public safety
repeater



> "Jed Barton"  wrote:
> Hey guys,
> Need some input here. I'm putting together a public safety

> repeater for my local FD. It's going to be really simple. 
> Given the reliability factor, we're going with a Kenwood. 
> Here's the million dollar question, i need some input. How

> about a kenwood tkr750 or a tkr740. I've run several 750s
with
> great results. I have not played with the 740, but i know
it 
> has an amazing receiver, but yet only pushes a few watts. 
> Any suggestions for a good amp, perhaps Cresend i think it
is.
> Thanks,
> Jed

Hi Jed, 

The Kenwood TKR-750 and TKR-740 are both great Repeaters.
The 
TKR-750 also has an amazing receiver. Proper setup of the
receiver 
should normally include the front end pre-selector alignment

using a special coax cable jig assembly and a tracking
generator
properly configured and installed onto the PC-Board matching

input and RF sample port/jack. 

Most people and Dealers tend to do the more casual "peak for
max 
signal" method, which results in very usable but not the
absolute 
best sensitivity and performance. I'm very much amazed how
many 
repeaters we service with rather odd looking (on the test 
equipment) "tweak and peak" front end alignment(s). So be
sure to 
ask any Dealer what and how they prepare your equipment
before 
they send it to you. 

The TKR-750 is more of a self contained ready to use
repeater 
with a lot of built in features. Very popular for operations

toward the 50 watt power level. 

The TKR-740 is more of "system repeater" meaning... how many
owners 
often use them with external Power Amplifiers and
Controllers. The 
TKR-740 has much less power output and normal operation
assumed by 
most people is to include an external RF Power Amplifier. 

If you need to bark higher than a 50 watt signal onto the
air the 
most popular method is to include (and use) an external RF
Amplifier. 

You can save quite a bit of serious money by using the same
external 
amplifier configuration with a TKR-750 Repeater and a higher
drive 
(input) level External Amplifier. There's nothing in stone
about 
driving an external high power RF Amplifier at the 25 to 50
watt 
level compared to spending a lot more money on a low drive
level 
amplifier. TPL, Cresend and TE can and will sell you higher
drive 
amplifiers for much less money and you end up with pretty
much the 
same end product. In the hopefully rare case where an
external 
amplifier might fail, continued repeater operation at the
25-50 
watt power level is quite usable versus the very low power
output 
of the 740 repeater. There can be different advantages to
using 
the TKR-750 or the TKR-740 Repeater.

cheers, 
skipp 

skipp025 at yahoo.com 
www.radiowrench.com 










  

Re: [Repeater-Builder] Re: opinions for a public safety repeater

[Maire-Radios]

Cresend  yes very good  we use a lot of it.


  - Original Message - 
  From: Jed Barton 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, March 25, 2010 1:03 PM
  Subject: RE: [Repeater-Builder] Re: opinions for a public safety repeater



  Hey there,
  so it sounds like the tkr750 might be the way to go.
  I've heard the cresend stuff is awesome. 

  -Original Message-
  From: Repeater-Builder@yahoogroups.com
  [mailto:repeater-buil...@yahoogroups.com] On Behalf Of skipp025
  Sent: Thursday, March 25, 2010 8:38 AM
  To: Repeater-Builder@yahoogroups.com
  Subject: [Repeater-Builder] Re: opinions for a public safety repeater

  > "Jed Barton"  wrote:
  > Hey guys,
  > Need some input here. I'm putting together a public safety repeater 
  > for my local FD. It's going to be really simple.
  > Given the reliability factor, we're going with a Kenwood. 
  > Here's the million dollar question, i need some input. How about a 
  > kenwood tkr750 or a tkr740. I've run several 750s with great results. 
  > I have not played with the 740, but i know it has an amazing receiver, 
  > but yet only pushes a few watts.
  > Any suggestions for a good amp, perhaps Cresend i think it is.
  > Thanks,
  > Jed

  Hi Jed, 

  The Kenwood TKR-750 and TKR-740 are both great Repeaters. The TKR-750 also
  has an amazing receiver. Proper setup of the receiver should normally
  include the front end pre-selector alignment using a special coax cable jig
  assembly and a tracking generator properly configured and installed onto the
  PC-Board matching input and RF sample port/jack. 

  Most people and Dealers tend to do the more casual "peak for max signal"
  method, which results in very usable but not the absolute best sensitivity
  and performance. I'm very much amazed how many repeaters we service with
  rather odd looking (on the test
  equipment) "tweak and peak" front end alignment(s). So be sure to ask any
  Dealer what and how they prepare your equipment before they send it to you. 

  The TKR-750 is more of a self contained ready to use repeater with a lot of
  built in features. Very popular for operations toward the 50 watt power
  level. 

  The TKR-740 is more of "system repeater" meaning... how many owners often
  use them with external Power Amplifiers and Controllers. The TKR-740 has
  much less power output and normal operation assumed by most people is to
  include an external RF Power Amplifier. 

  If you need to bark higher than a 50 watt signal onto the air the most
  popular method is to include (and use) an external RF Amplifier. 

  You can save quite a bit of serious money by using the same external
  amplifier configuration with a TKR-750 Repeater and a higher drive
  (input) level External Amplifier. There's nothing in stone about driving an
  external high power RF Amplifier at the 25 to 50 watt level compared to
  spending a lot more money on a low drive level amplifier. TPL, Cresend and
  TE can and will sell you higher drive amplifiers for much less money and you
  end up with pretty much the same end product. In the hopefully rare case
  where an external amplifier might fail, continued repeater operation at the
  25-50 watt power level is quite usable versus the very low power output of
  the 740 repeater. There can be different advantages to using the TKR-750 or
  the TKR-740 Repeater.

  cheers,
  skipp 

  skipp025 at yahoo.com
  www.radiowrench.com 



  

Re: [Repeater-Builder] Re: opinions for a public safety repeater

[Maire-Radios]

750 still there but yes the new one will do both


  - Original Message - 
  From: Jed Barton 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, March 25, 2010 10:47 AM
  Subject: RE: [Repeater-Builder] Re: opinions for a public safety repeater



  hmmm, tell me more about that one. Is that the combination analog /
  digital?
  Did the tkr750 go away? 

  -Original Message-
  From: Repeater-Builder@yahoogroups.com
  [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Maire-Radios
  Sent: Thursday, March 25, 2010 10:22 AM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] Re: opinions for a public safety repeater

  also there is the NXR-710 that replaces the TKR-750



  - Original Message - 
  From: Maire-Radios  
  To: Repeater-Builder@yahoogroups.com
   
  Sent: Thursday, March 25, 2010 9:56 AM
  Subject: Re: [Repeater-Builder] Re: opinions for a public safety
  repeater




  look at the new version of the TKR-740 the NXR-700 repeater it
  is the way to go and get the ver 2 software.

  John
  727-441-3250




  - Original Message - 
  From: skipp025  
  To: Repeater-Builder@yahoogroups.com
   
  Sent: Thursday, March 25, 2010 8:37 AM
  Subject: [Repeater-Builder] Re: opinions for a public safety
  repeater



  > "Jed Barton"  wrote:
  > Hey guys,
  > Need some input here. I'm putting together a public safety

  > repeater for my local FD. It's going to be really simple. 
  > Given the reliability factor, we're going with a Kenwood. 
  > Here's the million dollar question, i need some input. How

  > about a kenwood tkr750 or a tkr740. I've run several 750s
  with
  > great results. I have not played with the 740, but i know
  it 
  > has an amazing receiver, but yet only pushes a few watts. 
  > Any suggestions for a good amp, perhaps Cresend i think it
  is.
  > Thanks,
  > Jed

  Hi Jed, 

  The Kenwood TKR-750 and TKR-740 are both great Repeaters.
  The 
  TKR-750 also has an amazing receiver. Proper setup of the
  receiver 
  should normally include the front end pre-selector alignment

  using a special coax cable jig assembly and a tracking
  generator
  properly configured and installed onto the PC-Board matching

  input and RF sample port/jack. 

  Most people and Dealers tend to do the more casual "peak for
  max 
  signal" method, which results in very usable but not the
  absolute 
  best sensitivity and performance. I'm very much amazed how
  many 
  repeaters we service with rather odd looking (on the test 
  equipment) "tweak and peak" front end alignment(s). So be
  sure to 
  ask any Dealer what and how they prepare your equipment
  before 
  they send it to you. 

  The TKR-750 is more of a self contained ready to use
  repeater 
  with a lot of built in features. Very popular for operations

  toward the 50 watt power level. 

  The TKR-740 is more of "system repeater" meaning... how many
  owners 
  often use them with external Power Amplifiers and
  Controllers. The 
  TKR-740 has much less power output and normal operation
  assumed by 
  most people is to include an external RF Power Amplifier. 

  If you need to bark higher than a 50 watt signal onto the
  air the 
  most popular method is to include (and use) an external RF
  Amplifier. 

  You can save quite a bit of serious money by using the same
  external 
  amplifier configuration with a TKR-750 Repeater and a higher
  drive 
  (input) level External Amplifier. There's nothing in stone
  about 
  driving an external high power RF Amplifier at the 25 to 50
  watt 
  level compared to spending a lot more money on a low drive
  level 
  amplifier. TPL, Cresend and TE can and will sell you higher
  drive 
  amplifiers for much less money and you end up with pretty
  much the 
  same end product. In the hopefully rare case where an
  external 
  amplifier might fail, continued repeater operation at the
  25-50 
  watt power level is quite usable versus the very low power
  output 
  of the 740 repeater. There can be different advantages to
  using 
  the TKR-750 or the TKR-740 Repeater.

  cheers, 
  skipp 

  skipp025 at yahoo.com 
  www.radiowrench.com 







  

[Repeater-Builder] Anyone try the "new" ID-O-Matic 2?

[AJ]

http://www.hamgadgets.com/store/product_info.php?products_id=108

Looks like it might be a very -very- _very_ simple option for a temp
repeater setup..

[Repeater-Builder] Re: Helper Instruments (Voltadder VA 502)

[Dawn]

The Mod Box was a great idea during it's time. Only the IFR-1000 at the time 
had the provision to use a microphone with a pre-emhasis network. Most all the 
service monitors only allowed an internal tone or external audio gen. Some 
allowed the mix of both. The Mod box was sort of like a microphone and two 
source tone mixer. 

The Power pad was neat b/c unlike an isotee or throughline power attenuator, 
you could combine both ends of a service monitor, especially one with 
duplex/offset generation to a device at the same time. Leave it attached 
permanantly and take into account the attenuation and never worry about 
accidently frying it.

We bought a couple of the Com-Ser (Neo-Lampkin) units. Still have one. These 
were single port devices based on a thick film hybrid in a big heatsink. They 
made some neat add-on stuff too. They had a banded, two way 
amplifier/preselector that raised the flea power output of some of the earlier 
monitors to +dbm levels, preslected the input and output for clean output and 
microvolt sensitivity of the monitor for OTA monitoring. Moot point with later 
monitors of the 80's.  

--- In Repeater-Builder@yahoogroups.com, Tony Faiola  wrote:
>
> 
> On Mar 24, 2010, at 11:06 PM, Gary Schafer wrote:
> 
> > Yes he did build some for a few years. They were never a big seller  
> > as the
> > price was pretty high. They did work pretty well. It did not have a  
> > digital
> > display, only analog meters. There were lights that showed what  
> > range it was
> > on. You could read AC on one meter and DC on the other. Handy for some
> > things.
> >
> > I kind of remember him playing around with an attenuator pad to go  
> > ahead of
> > a service monitor. I don't remember the wattmeter part though.
> >
> > There was a guy in California making a 40 db power pad to use ahead  
> > of a
> > service monitor. It was made during the Singer monitor era to go in  
> > front of
> > it. It had a port for the transceiver and one for the signal  
> > generator and
> > another for the receive input on the monitor. It worked pretty  
> > well. There
> > may be a few floating around yet.
> 
> Gary:  The guy that marketed that 40 db power pad was actually a rep,  
> a real character.  I still have the data sheet and picture somewhere  
> here in my library.  He used to tell me his real money came from  
> making and selling waders.
> 
> BTW I do have the schematic and JPEG of the Cushman 40 db pad with  
> the fuse inside.  Should I send it to someone?
> 
> Ciao, Tony, K3WX
> >
> > 73
> > Gary  K4FMX
> >
> >>
> >> While we're at it, what ever happened to the watt meter that fed a  
> >> power
> >> pad like a termaline with an attenuated output? Was that talk, or did
> >> they ever do anything with that?
> >>
> >>
> >>>
> >
>

RE: [Repeater-Builder] Re: opinions for a public safety repeater

[Ken Arck]

At 10:03 AM 3/25/2010, Jed Barton wrote:
>
>
>Hey there,
>so it sounds like the tkr750 might be the way to go.
>I've heard the cresend stuff is awesome.

<---Hi Jed. As you probably know, we have sold dozens and dozens of 
Kenwood TKR's. They have gone not only into ARS but many have gone 
into public safety uses and our customers just love 'em.

VERY well performing, VERY reliable and very reasonably priced. You 
can't go wrong.

Ken
--
President and CTO - Arcom Communications
Makers of repeater controllers and accessories.
http://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave and
we offer complete repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"

RE: [Repeater-Builder] Re: opinions for a public safety repeater

[Jed Barton]

Hey there,
so it sounds like the tkr750 might be the way to go.
I've heard the cresend stuff is awesome. 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of skipp025
Sent: Thursday, March 25, 2010 8:38 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: opinions for a public safety repeater

  

> "Jed Barton"  wrote:
> Hey guys,
> Need some input here. I'm putting together a public safety repeater 
> for my local FD. It's going to be really simple.
> Given the reliability factor, we're going with a Kenwood. 
> Here's the million dollar question, i need some input. How about a 
> kenwood tkr750 or a tkr740. I've run several 750s with great results. 
> I have not played with the 740, but i know it has an amazing receiver, 
> but yet only pushes a few watts.
> Any suggestions for a good amp, perhaps Cresend i think it is.
> Thanks,
> Jed

Hi Jed, 

The Kenwood TKR-750 and TKR-740 are both great Repeaters. The TKR-750 also
has an amazing receiver. Proper setup of the receiver should normally
include the front end pre-selector alignment using a special coax cable jig
assembly and a tracking generator properly configured and installed onto the
PC-Board matching input and RF sample port/jack. 

Most people and Dealers tend to do the more casual "peak for max signal"
method, which results in very usable but not the absolute best sensitivity
and performance. I'm very much amazed how many repeaters we service with
rather odd looking (on the test
equipment) "tweak and peak" front end alignment(s). So be sure to ask any
Dealer what and how they prepare your equipment before they send it to you. 

The TKR-750 is more of a self contained ready to use repeater with a lot of
built in features. Very popular for operations toward the 50 watt power
level. 

The TKR-740 is more of "system repeater" meaning... how many owners often
use them with external Power Amplifiers and Controllers. The TKR-740 has
much less power output and normal operation assumed by most people is to
include an external RF Power Amplifier. 

If you need to bark higher than a 50 watt signal onto the air the most
popular method is to include (and use) an external RF Amplifier. 

You can save quite a bit of serious money by using the same external
amplifier configuration with a TKR-750 Repeater and a higher drive
(input) level External Amplifier. There's nothing in stone about driving an
external high power RF Amplifier at the 25 to 50 watt level compared to
spending a lot more money on a low drive level amplifier. TPL, Cresend and
TE can and will sell you higher drive amplifiers for much less money and you
end up with pretty much the same end product. In the hopefully rare case
where an external amplifier might fail, continued repeater operation at the
25-50 watt power level is quite usable versus the very low power output of
the 740 repeater. There can be different advantages to using the TKR-750 or
the TKR-740 Repeater.

cheers,
skipp 

skipp025 at yahoo.com
www.radiowrench.com 

Re: [Repeater-Builder] RG21AU CABLE

[Doug]

At 06:42 AM 25/03/2010, you wrote:
>The "high resistance wire" is nichrome.
>
>As I recall its attenuation is around 20 dB/100ft at 2m.  I built an
>attenuator using it about 35 years ago.  It handled the maximum power
>rating of the coax as long as the first 10 ft from the input was well
>spread out to prevent build up of heat.
>
>There is a more modern version of this cable with the designation of
>RG-221 or RG-222 (sorry I cannot find my Times cable handbook to verify
>the number).  It's attenuation is approximately the same.
>
>Burt  VE2BMQ
-
Thanks Bert.. I remember using it even further back... Hadn't run across
it ever since until this piece showed up. Another conversation piece I
guess..

73 Doug 

Re: [Repeater-Builder] Re: opinions for a public safety repeater

[Larry Horlick]

The digital side is Kenwood Nextedge, is it not? Does this mean that only
Kenwood mobiles can be used?

lh

On Thu, Mar 25, 2010 at 10:47 AM, Jed Barton  wrote:

>
>
> hmmm, tell me more about that one. Is that the combination analog /
> digital?
> Did the tkr750 go away?
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:Repeater-Builder@yahoogroups.com]
> On Behalf Of Maire-Radios
> Sent: Thursday, March 25, 2010 10:22 AM
> To: Repeater-Builder@yahoogroups.com 
> Subject: Re: [Repeater-Builder] Re: opinions for a public safety repeater
>
> also there is the NXR-710 that replaces the TKR-750
>
>
>
> - Original Message -
> From: Maire-Radios 
> 
>
> To: Repeater-Builder@yahoogroups.com 
> 
>
> Sent: Thursday, March 25, 2010 9:56 AM
> Subject: Re: [Repeater-Builder] Re: opinions for a public safety
> repeater
>
>
>
>
> look at the new version of the TKR-740 the NXR-700 repeater it
> is the way to go and get the ver 2 software.
>
> John
> 727-441-3250
>
>
>
>
> - Original Message -
> From: skipp025 
> To: Repeater-Builder@yahoogroups.com 
> 
>
> Sent: Thursday, March 25, 2010 8:37 AM
> Subject: [Repeater-Builder] Re: opinions for a public safety
> repeater
>
>
>
> > "Jed Barton"  wrote:
> > Hey guys,
> > Need some input here. I'm putting together a public safety
>
> > repeater for my local FD. It's going to be really simple.
> > Given the reliability factor, we're going with a Kenwood.
> > Here's the million dollar question, i need some input. How
>
> > about a kenwood tkr750 or a tkr740. I've run several 750s
> with
> > great results. I have not played with the 740, but i know
> it
> > has an amazing receiver, but yet only pushes a few watts.
> > Any suggestions for a good amp, perhaps Cresend i think it
> is.
> > Thanks,
> > Jed
>
> Hi Jed,
>
> The Kenwood TKR-750 and TKR-740 are both great Repeaters.
> The
> TKR-750 also has an amazing receiver. Proper setup of the
> receiver
> should normally include the front end pre-selector alignment
>
> using a special coax cable jig assembly and a tracking
> generator
> properly configured and installed onto the PC-Board matching
>
> input and RF sample port/jack.
>
> Most people and Dealers tend to do the more casual "peak for
> max
> signal" method, which results in very usable but not the
> absolute
> best sensitivity and performance. I'm very much amazed how
> many
> repeaters we service with rather odd looking (on the test
> equipment) "tweak and peak" front end alignment(s). So be
> sure to
> ask any Dealer what and how they prepare your equipment
> before
> they send it to you.
>
> The TKR-750 is more of a self contained ready to use
> repeater
> with a lot of built in features. Very popular for operations
>
> toward the 50 watt power level.
>
> The TKR-740 is more of "system repeater" meaning... how many
> owners
> often use them with external Power Amplifiers and
> Controllers. The
> TKR-740 has much less power output and normal operation
> assumed by
> most people is to include an external RF Power Amplifier.
>
> If you need to bark higher than a 50 watt signal onto the
> air the
> most popular method is to include (and use) an external RF
> Amplifier.
>
> You can save quite a bit of serious money by using the same
> external
> amplifier configuration with a TKR-750 Repeater and a higher
> drive
> (input) level External Amplifier. There's nothing in stone
> about
> driving an external high power RF Amplifier at the 25 to 50
> watt
> level compared to spending a lot more money on a low drive
> level
> amplifier. TPL, Cresend and TE can and will sell you higher
> drive
> amplifiers for much less money and you end up with pretty
> much the
> same end product. In the hopefully rare case where an
> external
> amplifier might fail, continued repeater operation at the
> 25-50
> watt power level is quite usable versus the very low power
> output
> of the 740 repeater. There can be different advantages to
> using
> the TKR-750 or the TKR-740 Repeater.
>
> cheers,
> skipp
>
> skipp025 at yahoo.com
> www.radiowrench.com
>
>
>
>
>
> 
>

RE: [Repeater-Builder] Re: opinions for a public safety repeater

[Jed Barton]

hmmm, tell me more about that one.  Is that the combination analog /
digital?
Did the tkr750 go away? 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Maire-Radios
Sent: Thursday, March 25, 2010 10:22 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: opinions for a public safety repeater

  

also there is the NXR-710 that replaces the TKR-750
 
 

- Original Message - 
From: Maire-Radios   
To: Repeater-Builder@yahoogroups.com
  
Sent: Thursday, March 25, 2010 9:56 AM
Subject: Re: [Repeater-Builder] Re: opinions for a public safety
repeater

  


look at the new version of the TKR-740  the NXR-700  repeater   it
is the way to go and get the ver 2 software.
 
John
727-441-3250
 
 
 

- Original Message - 
From: skipp025   
To: Repeater-Builder@yahoogroups.com
  
Sent: Thursday, March 25, 2010 8:37 AM
Subject: [Repeater-Builder] Re: opinions for a public safety
repeater

  

> "Jed Barton"  wrote:
> Hey guys,
> Need some input here. I'm putting together a public safety

> repeater for my local FD. It's going to be really simple. 
> Given the reliability factor, we're going with a Kenwood. 
> Here's the million dollar question, i need some input. How

> about a kenwood tkr750 or a tkr740. I've run several 750s
with
> great results. I have not played with the 740, but i know
it 
> has an amazing receiver, but yet only pushes a few watts. 
> Any suggestions for a good amp, perhaps Cresend i think it
is.
> Thanks,
> Jed

Hi Jed, 

The Kenwood TKR-750 and TKR-740 are both great Repeaters.
The 
TKR-750 also has an amazing receiver. Proper setup of the
receiver 
should normally include the front end pre-selector alignment

using a special coax cable jig assembly and a tracking
generator
properly configured and installed onto the PC-Board matching

input and RF sample port/jack. 

Most people and Dealers tend to do the more casual "peak for
max 
signal" method, which results in very usable but not the
absolute 
best sensitivity and performance. I'm very much amazed how
many 
repeaters we service with rather odd looking (on the test 
equipment) "tweak and peak" front end alignment(s). So be
sure to 
ask any Dealer what and how they prepare your equipment
before 
they send it to you. 

The TKR-750 is more of a self contained ready to use
repeater 
with a lot of built in features. Very popular for operations

toward the 50 watt power level. 

The TKR-740 is more of "system repeater" meaning... how many
owners 
often use them with external Power Amplifiers and
Controllers. The 
TKR-740 has much less power output and normal operation
assumed by 
most people is to include an external RF Power Amplifier. 

If you need to bark higher than a 50 watt signal onto the
air the 
most popular method is to include (and use) an external RF
Amplifier. 

You can save quite a bit of serious money by using the same
external 
amplifier configuration with a TKR-750 Repeater and a higher
drive 
(input) level External Amplifier. There's nothing in stone
about 
driving an external high power RF Amplifier at the 25 to 50
watt 
level compared to spending a lot more money on a low drive
level 
amplifier. TPL, Cresend and TE can and will sell you higher
drive 
amplifiers for much less money and you end up with pretty
much the 
same end product. In the hopefully rare case where an
external 
amplifier might fail, continued repeater operation at the
25-50 
watt power level is quite usable versus the very low power
output 
of the 740 repeater. There can be different advantages to
using 
the TKR-750 or the TKR-740 Repeater.

cheers, 
skipp 

skipp025 at yahoo.com 
  

Re: [Repeater-Builder] Re: opinions for a public safety repeater

[Maire-Radios]

also there is the NXR-710 that replaces the TKR-750


  - Original Message - 
  From: Maire-Radios 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, March 25, 2010 9:56 AM
  Subject: Re: [Repeater-Builder] Re: opinions for a public safety repeater




  look at the new version of the TKR-740  the NXR-700  repeater   it is the way 
to go and get the ver 2 software.

  John
  727-441-3250



- Original Message - 
From: skipp025 
To: Repeater-Builder@yahoogroups.com 
Sent: Thursday, March 25, 2010 8:37 AM
Subject: [Repeater-Builder] Re: opinions for a public safety repeater


  
> "Jed Barton"  wrote:
> Hey guys,
> Need some input here. I'm putting together a public safety 
> repeater for my local FD. It's going to be really simple. 
> Given the reliability factor, we're going with a Kenwood. 
> Here's the million dollar question, i need some input. How 
> about a kenwood tkr750 or a tkr740. I've run several 750s with
> great results. I have not played with the 740, but i know it 
> has an amazing receiver, but yet only pushes a few watts. 
> Any suggestions for a good amp, perhaps Cresend i think it is.
> Thanks,
> Jed

Hi Jed, 

The Kenwood TKR-750 and TKR-740 are both great Repeaters. The 
TKR-750 also has an amazing receiver. Proper setup of the receiver 
should normally include the front end pre-selector alignment 
using a special coax cable jig assembly and a tracking generator
properly configured and installed onto the PC-Board matching 
input and RF sample port/jack. 

Most people and Dealers tend to do the more casual "peak for max 
signal" method, which results in very usable but not the absolute 
best sensitivity and performance. I'm very much amazed how many 
repeaters we service with rather odd looking (on the test 
equipment) "tweak and peak" front end alignment(s). So be sure to 
ask any Dealer what and how they prepare your equipment before 
they send it to you. 

The TKR-750 is more of a self contained ready to use repeater 
with a lot of built in features. Very popular for operations 
toward the 50 watt power level. 

The TKR-740 is more of "system repeater" meaning... how many owners 
often use them with external Power Amplifiers and Controllers. The 
TKR-740 has much less power output and normal operation assumed by 
most people is to include an external RF Power Amplifier. 

If you need to bark higher than a 50 watt signal onto the air the 
most popular method is to include (and use) an external RF Amplifier. 

You can save quite a bit of serious money by using the same external 
amplifier configuration with a TKR-750 Repeater and a higher drive 
(input) level External Amplifier. There's nothing in stone about 
driving an external high power RF Amplifier at the 25 to 50 watt 
level compared to spending a lot more money on a low drive level 
amplifier. TPL, Cresend and TE can and will sell you higher drive 
amplifiers for much less money and you end up with pretty much the 
same end product. In the hopefully rare case where an external 
amplifier might fail, continued repeater operation at the 25-50 
watt power level is quite usable versus the very low power output 
of the 740 repeater. There can be different advantages to using 
the TKR-750 or the TKR-740 Repeater.

cheers, 
skipp 

skipp025 at yahoo.com 
www.radiowrench.com 




  

Re: [Repeater-Builder] Re: opinions for a public safety repeater

[Maire-Radios]

look at the new version of the TKR-740  the NXR-700  repeater   it is the way 
to go and get the ver 2 software.

John
727-441-3250



  - Original Message - 
  From: skipp025 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, March 25, 2010 8:37 AM
  Subject: [Repeater-Builder] Re: opinions for a public safety repeater



  > "Jed Barton"  wrote:
  > Hey guys,
  > Need some input here. I'm putting together a public safety 
  > repeater for my local FD. It's going to be really simple. 
  > Given the reliability factor, we're going with a Kenwood. 
  > Here's the million dollar question, i need some input. How 
  > about a kenwood tkr750 or a tkr740. I've run several 750s with
  > great results. I have not played with the 740, but i know it 
  > has an amazing receiver, but yet only pushes a few watts. 
  > Any suggestions for a good amp, perhaps Cresend i think it is.
  > Thanks,
  > Jed

  Hi Jed, 

  The Kenwood TKR-750 and TKR-740 are both great Repeaters. The 
  TKR-750 also has an amazing receiver. Proper setup of the receiver 
  should normally include the front end pre-selector alignment 
  using a special coax cable jig assembly and a tracking generator
  properly configured and installed onto the PC-Board matching 
  input and RF sample port/jack. 

  Most people and Dealers tend to do the more casual "peak for max 
  signal" method, which results in very usable but not the absolute 
  best sensitivity and performance. I'm very much amazed how many 
  repeaters we service with rather odd looking (on the test 
  equipment) "tweak and peak" front end alignment(s). So be sure to 
  ask any Dealer what and how they prepare your equipment before 
  they send it to you. 

  The TKR-750 is more of a self contained ready to use repeater 
  with a lot of built in features. Very popular for operations 
  toward the 50 watt power level. 

  The TKR-740 is more of "system repeater" meaning... how many owners 
  often use them with external Power Amplifiers and Controllers. The 
  TKR-740 has much less power output and normal operation assumed by 
  most people is to include an external RF Power Amplifier. 

  If you need to bark higher than a 50 watt signal onto the air the 
  most popular method is to include (and use) an external RF Amplifier. 

  You can save quite a bit of serious money by using the same external 
  amplifier configuration with a TKR-750 Repeater and a higher drive 
  (input) level External Amplifier. There's nothing in stone about 
  driving an external high power RF Amplifier at the 25 to 50 watt 
  level compared to spending a lot more money on a low drive level 
  amplifier. TPL, Cresend and TE can and will sell you higher drive 
  amplifiers for much less money and you end up with pretty much the 
  same end product. In the hopefully rare case where an external 
  amplifier might fail, continued repeater operation at the 25-50 
  watt power level is quite usable versus the very low power output 
  of the 740 repeater. There can be different advantages to using 
  the TKR-750 or the TKR-740 Repeater.

  cheers, 
  skipp 

  skipp025 at yahoo.com 
  www.radiowrench.com 



  

Re: [Repeater-Builder] Re: Helper Instruments (Voltadder VA 502)

[Tony Faiola]

On Mar 24, 2010, at 11:06 PM, Gary Schafer wrote:

> Yes he did build some for a few years. They were never a big seller  
> as the
> price was pretty high. They did work pretty well. It did not have a  
> digital
> display, only analog meters. There were lights that showed what  
> range it was
> on. You could read AC on one meter and DC on the other. Handy for some
> things.
>
> I kind of remember him playing around with an attenuator pad to go  
> ahead of
> a service monitor. I don't remember the wattmeter part though.
>
> There was a guy in California making a 40 db power pad to use ahead  
> of a
> service monitor. It was made during the Singer monitor era to go in  
> front of
> it. It had a port for the transceiver and one for the signal  
> generator and
> another for the receive input on the monitor. It worked pretty  
> well. There
> may be a few floating around yet.

Gary:  The guy that marketed that 40 db power pad was actually a rep,  
a real character.  I still have the data sheet and picture somewhere  
here in my library.  He used to tell me his real money came from  
making and selling waders.

BTW I do have the schematic and JPEG of the Cushman 40 db pad with  
the fuse inside.  Should I send it to someone?

Ciao, Tony, K3WX
>
> 73
> Gary  K4FMX
>
>>
>> While we're at it, what ever happened to the watt meter that fed a  
>> power
>> pad like a termaline with an attenuated output? Was that talk, or did
>> they ever do anything with that?
>>
>>
>>>
>

Re: [Repeater-Builder] RG21AU CABLE

[Burt Lang]

The "high resistance wire" is nichrome.

As I recall its attenuation is around 20 dB/100ft at 2m.  I built an 
attenuator using it about 35 years ago.  It handled the maximum power 
rating of the coax as long as the first 10 ft from the input was well 
spread out to prevent build up of heat.

There is a more modern version of this cable with the designation of 
RG-221 or RG-222 (sorry I cannot find my Times cable handbook to verify 
the number).  It's attenuation is approximately the same.

Burt  VE2BMQ

Doug wrote:
> At 09:26 PM 24/03/2010, you wrote:
>> Doug,
>>
>>  From what I have found, RG-21A/U cable is 53 ohm impedance, 0.339" outer
>> diameter, double silver-plated copper braid shields, and a solid center
>> conductor of "high resistance wire."  The dielectric is solid polyethylene,
>> and the jacket is black PVC.  If you have a sample of this wire, please
>> reveal what is printed lengthwise on the jacket.
>>
>> 73, Eric Lemmon WB6FLY
> 
> Hi Eric. Well it has Plastoid Corportation RG-21/AU on the black jacket.
> It is stiff coax. You describe it very well. I sort of remember using
> something like this to reduce the power of an old Prog line unit... Here
> in Canada they didn't allow us to turn the power down, you had to use
> an attenuator.
>
> Thanks Eric
>
> Doug
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>

[Repeater-Builder] Re: opinions for a public safety repeater

[skipp025]

> "Jed Barton"  wrote:
> Hey guys,
> Need some input here.  I'm putting together a public safety 
> repeater for my local FD. It's going to be really simple.  
> Given the reliability factor, we're going with a Kenwood.  
> Here's the million dollar question, i need some input. How 
> about a kenwood tkr750 or a tkr740.  I've run several 750s with
> great results.  I have not played with the 740, but i know it 
> has an amazing receiver, but yet only pushes a few watts.  
> Any suggestions for a good amp, perhaps Cresend i think it is.
> Thanks,
> Jed

Hi Jed, 

The Kenwood TKR-750 and TKR-740 are both great Repeaters. The 
TKR-750 also has an amazing receiver. Proper setup of the receiver 
should normally include the front end pre-selector alignment 
using a special coax cable jig assembly and a tracking generator
properly configured and installed onto the PC-Board matching 
input and RF sample port/jack. 

Most people and Dealers tend to do the more casual "peak for max 
signal" method, which results in very usable but not the absolute 
best sensitivity and performance. I'm very much amazed how many 
repeaters we service with rather odd looking (on the test 
equipment) "tweak and peak" front end alignment(s). So be sure to 
ask any Dealer what and how they prepare your equipment before 
they send it to you. 

The TKR-750 is more of a self contained ready to use repeater 
with a lot of built in features. Very popular for operations 
toward the 50 watt power level. 

The TKR-740 is more of "system repeater" meaning... how many owners 
often use them with external Power Amplifiers and Controllers. The 
TKR-740 has much less power output and normal operation assumed by 
most people is to include an external RF Power Amplifier. 

If you need to bark higher than a 50 watt signal onto the air the 
most popular method is to include (and use) an external RF Amplifier. 

You can save quite a bit of serious money by using the same external 
amplifier configuration with a TKR-750 Repeater and a higher drive 
(input) level External Amplifier.  There's nothing in stone about 
driving an external high power RF Amplifier at the 25 to 50 watt 
level compared to spending a lot more money on a low drive level 
amplifier.  TPL, Cresend and TE can and will sell you higher drive 
amplifiers for much less money and you end up with pretty much the 
same end product.  In the hopefully rare case where an external 
amplifier might fail, continued repeater operation at the 25-50 
watt power level is quite usable versus the very low power output 
of the 740 repeater.  There can be different advantages to using 
the TKR-750 or the TKR-740 Repeater.

cheers, 
skipp 

skipp025 at yahoo.com 
www.radiowrench.com 

[Repeater-Builder] Re: Helper Instruments (Voltadder VA 502)

[skipp025]

> While the subject is odd Helper stuff, remember the 
> Mod Box or the Sineman? 

I'm a late comer to picking up extra Helper Instrument Equipment 
but I now have a modest collection of a few items like the Sineadder 
and a few of the antenna match boxes. I hadn't thought about it 
for a while but I even have a Mod Box somewhere.  It's not nearly 
as useful as some of their other products still are, but it's at 
least neat to try and read the manual. 

I have a Helper Instruments Catalog (one of their last) in my 
collection (somewhere). I expect my digital scanner to be back on
line later this month and I'll be able to make pdf copies available 
free to any and all parties. 

cheers,
s. 

Re: [Repeater-Builder] opinions for a public safety repeater

[WA3GIN]

We use Kenwood TKR for 2m and 70cm repeaters (2 ea), both drive TPL amps, 250 
watt on 2m and 100 on 70cm.  Been up for years, not one hick-up.  You don't get 
the great rich audio from the old Kendicoms but good quality communications 
audio.

ARCOM, Inc does commercial work as well as amateur. Ken can assist you with 
purchase and configuration, etc.

Best of Luck,
dave
wa3gin
W4AVA Trustee
www.w4ava.org
 
  - Original Message - 
  From: Jed Barton 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Wednesday, March 24, 2010 11:55 PM
  Subject: [Repeater-Builder] opinions for a public safety repeater



  Hey guys,
  Need some input here. I'm putting together a public safety repeater for my
  local FD. It's going to be really simple. Given the relyability factor,
  we're going with a kenwood. Here's the million dollar question, i need some
  input. How about a kenwood tkr750 or a tkr740. I've run several 750s with
  great results. I have not played with the 740, but i know it has an amazing
  receiver, but yet only pushes a few watts. Any suggestions for a good amp,
  perhaps cresend i think it is.

  Thanks,
  Jed



  

Re: [Repeater-Builder] Micor Big PA,what drive?

[gervais]

Thanks


From: Captainlance 
Sent: Wednesday, March 24, 2010 11:56 PM
To: Repeater-Builder@yahoogroups.com 
Subject: Re: [Repeater-Builder] Micor Big PA,what drive?





UHF take 1.5 watts, VHF 450mw.
  - Original Message - 
  From: gervais 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Wednesday, March 24, 2010 9:59 PM
  Subject: [Repeater-Builder] Micor Big PA,what drive?




  hi all
  i have some PA from old Micor i dismantled some years ago and they were no1.
  they are 100 watts + and i need to know,
  what drive do they need to output 100 watts + ?

  i will drive them with an Ge Phoenix specially modify at 450 too 500 mw of 
drive,is it enough?

  Thanks for your help
  Gervais ve2ckn