[Repeater-Builder] Uniden ARX-1250 amp 220mhz

[KD8BIW]

Hello All,

The Uniden ARX-1250 and ARX-2125 amps for 220mhz ACSSB.  Has anyone ever 
got a manual or schematics for one of these things?  I emailed Crescend and 
finally got an answer about a manual... "we don't have one" is what they told 
me...  They did however give me some info that sorta helped.  Seems the 
ARX-1200 amp is similiar in design, and I did find a manual for one of those.  
I've ordered it and will check it out/compare it to what I have.  If it is a 
match, I will post some pics/info/whatever I can to the group...

Keep your fingers crossed!


Steve KD8BIW
www.kd8biw.com
KD8BIW/R 224.580
KD8JBF/R 444.2625
KD8JBF/R 444.325
N8IHI/R  147.105
W3YXS/R  146.745

Re: [Repeater-Builder] MSR2000 TRN5074

[Will Gwin]

WA2RJP wrote:
> Also, does anyone know of an economical way to convert microfiche to PDF or 
> printed form?

I've got a flatbed scanner that has a Film Negative function that could 
probably work.  Basically the lid has a backlight so you can light up the 
negative.  Combine that with a high res scan and you could probably get as 
decent of a transfer as you're gonna get.  Keep in mind this would be a very 
slow process as you would have to line up each individual cell and scan it by 
hand. 

Will Gwin
www.N5KH.org

Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

[Don Crutcher]

OK Ian
Hope that helps.

Regards
Don

  - Original Message - 
  From: Ian Wells 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Wednesday, March 03, 2010 4:29 PM
  Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150



Thanks don that would explain the trouble I had a couple years ago and 
we setup the radios to decode on their own .that works ok but it is slow 

Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au

---Original Message---

From: Don Crutcher
Date: 3/03/2010 4:21:09 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

  

Hello again Ian

I've also tried a decoder with a 4 MHz crystal and it still heterodyned.
Get a tunable decoder and your troubles will be solved.

What I found was if I turned up the TX CTCSS encode, the decoder 
activated and held up the receiver which held up the transmitter etc.
We also had a ~ 1KHz whistle, probably the receive signals or TX were 
off frequency by that much.

Peter VK2ZTV also has had the same problem with FM-828's 

Regards
Don vk2zcz
- Original Message - 
From: Ian Wells 
To: Repeater-Builder@yahoogroups.com 
Sent: Wednesday, March 03, 2010 3:12 PM
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150


  
  From the manual it says it uses a 4 meg crystal 

  Thank You ,Ian Wells
  Kerinvale Comaudio,
  361 Camboon road, Biloela.4715
  Ph 0749922449 Mb 0409159932 
  Hm 0749922574 Fx 0749922767
  www.kerinvalecomaudio.com.au

  ---Original Message---

  From: Don Crutcher
  Date: 3/03/2010 3:04:49 PM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon 
pm150



  Hello Ian

  IF your repeater is a UHF and the CTCSS decoder has a 5 MHz 
crystal oscillator, it will mix with the transmitter and give a signal at the 
receiver frequency 5 MHz lower (in Australia RX 433-435 TX 438-440 MHz)
  This a is a common occurrence with UHF Philips FM-828's.
  The fix is to use a tuneable CTCSS decoder and not use the one 
with a crystal oscillator in it.
  Been there and done that. Took years to find out why we had a 
whistle in the receiver (heterodyne).

  Regards
  Don vk2zcz

  - Original Message - 
  From: Ian Wells 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Wednesday, March 03, 2010 2:48 PM
  Subject: [Repeater-Builder] Adapting ctcss decoders to maxon pm150



Hi guys .I was looking at adapting a midian tds-1 to a 
maxon pm150 but we end up with feedback problems when used in repeater .
Can anyone suggest ideas to give rf protection to the 
decoder chip .I came up with shielded cable between the board and the chip 
And to install the chip in a metal case on near the radio 
.or mounting it as close to the rf motherboard as possible but I don't think 
It will fit under the lid .The reason we would like to use 
the tds-1 is that the radio has to unmute before it decodes
And I would like it to decode before the signal opens the 
mute .This improves the speed the repeater opening up
On a valid signal .
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
   
   
   



 
 
 



   
   
   


  

Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

[Ian Wells]

Thanks don that would explain the trouble I had a couple years ago and we
setup the radios to decode on their own .that works ok but it is slow 

Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 
---Original Message---
 
From: Don Crutcher
Date: 3/03/2010 4:21:09 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150
 
  
Hello again Ian
 
I've also tried a decoder with a 4 MHz crystal and it still heterodyned.
Get a tunable decoder and your troubles will be solved.
 
What I found was if I turned up the TX CTCSS encode, the decoder activated
and held up the receiver which held up the transmitter etc.
We also had a ~ 1KHz whistle, probably the receive signals or TX were off
frequency by that much.
 
Peter VK2ZTV also has had the same problem with FM-828's 
 
Regards
Don vk2zcz
- Original Message - 
From: Ian Wells 
To: Repeater-Builder@yahoogroups.com 
Sent: Wednesday, March 03, 2010 3:12 PM
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150


  
>From the manual it says it uses a 4 meg crystal 
 
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 
---Original Message---
 
From: Don Crutcher
Date: 3/03/2010 3:04:49 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150
 
  
Hello Ian
 
IF your repeater is a UHF and the CTCSS decoder has a 5 MHz crystal
oscillator, it will mix with the transmitter and give a signal at the
receiver frequency 5 MHz lower (in Australia RX 433-435 TX 438-440 MHz)
This a is a common occurrence with UHF Philips FM-828's.
The fix is to use a tuneable CTCSS decoder and not use the one with a
crystal oscillator in it.
Been there and done that. Took years to find out why we had a whistle in the
receiver (heterodyne).
 
Regards
Don vk2zcz
 
- Original Message - 
From: Ian Wells 
To: Repeater-Builder@yahoogroups.com 
Sent: Wednesday, March 03, 2010 2:48 PM
Subject: [Repeater-Builder] Adapting ctcss decoders to maxon pm150


  
Hi guys .I was looking at adapting a midian tds-1 to a maxon pm150 but we
end up with feedback problems when used in repeater .
Can anyone suggest ideas to give rf protection to the decoder chip .I came
up with shielded cable between the board and the chip 
And to install the chip in a metal case on near the radio .or mounting it as
close to the rf motherboard as possible but I don't think 
It will fit under the lid .The reason we would like to use the tds-1 is that
the radio has to unmute before it decodes
And I would like it to decode before the signal opens the mute .This
improves the speed the repeater opening up
On a valid signal .
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 



 




 <>

Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

[Don Crutcher]

Hello again Ian

I've also tried a decoder with a 4 MHz crystal and it still heterodyned.
Get a tunable decoder and your troubles will be solved.

What I found was if I turned up the TX CTCSS encode, the decoder activated and 
held up the receiver which held up the transmitter etc.
We also had a ~ 1KHz whistle, probably the receive signals or TX were off 
frequency by that much.

Peter VK2ZTV also has had the same problem with FM-828's 

Regards
Don vk2zcz
  - Original Message - 
  From: Ian Wells 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Wednesday, March 03, 2010 3:12 PM
  Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150



From the manual it says it uses a 4 meg crystal 

Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au

---Original Message---

From: Don Crutcher
Date: 3/03/2010 3:04:49 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

  

Hello Ian

IF your repeater is a UHF and the CTCSS decoder has a 5 MHz crystal 
oscillator, it will mix with the transmitter and give a signal at the receiver 
frequency 5 MHz lower (in Australia RX 433-435 TX 438-440 MHz)
This a is a common occurrence with UHF Philips FM-828's.
The fix is to use a tuneable CTCSS decoder and not use the one with a 
crystal oscillator in it.
Been there and done that. Took years to find out why we had a whistle 
in the receiver (heterodyne).

Regards
Don vk2zcz

- Original Message - 
From: Ian Wells 
To: Repeater-Builder@yahoogroups.com 
Sent: Wednesday, March 03, 2010 2:48 PM
Subject: [Repeater-Builder] Adapting ctcss decoders to maxon pm150


  
  Hi guys .I was looking at adapting a midian tds-1 to a maxon 
pm150 but we end up with feedback problems when used in repeater .
  Can anyone suggest ideas to give rf protection to the decoder 
chip .I came up with shielded cable between the board and the chip 
  And to install the chip in a metal case on near the radio .or 
mounting it as close to the rf motherboard as possible but I don't think 
  It will fit under the lid .The reason we would like to use the 
tds-1 is that the radio has to unmute before it decodes
  And I would like it to decode before the signal opens the mute 
.This improves the speed the repeater opening up
  On a valid signal .
  Thank You ,Ian Wells
  Kerinvale Comaudio,
  361 Camboon road, Biloela.4715
  Ph 0749922449 Mb 0409159932 
  Hm 0749922574 Fx 0749922767
  www.kerinvalecomaudio.com.au
 
 
 



   
   
   


  

[Repeater-Builder] 800 MHz spectras

[tengelinjohn]

Thanks for those who responded to my question about the trunked spectras- what 
a great bunch of folks!
I didn't bid on them- by the way!
John
K7FPM

RE: [Repeater-Builder] MSR2000 TRN5074

[Eric Lemmon]

Jim,

The complete information on the TRN5074 Tone encode/decode board, along with
all other MSR2000 accessories, is contained in the MSR2000 Control and Audio
Manual 6881061E40.  This large book is still available from Motorola Parts
for about $60, and is worth every penny.  Call 800-422-4210 to order.  The
TRN5074 has one reed, and that is why it can either encode during transmit
or decode during receive, but not both at the same time, as required for a
repeater.  For that operation, you need a TRN5073 module.

Regarding the conversion of microfiche to readable copy, that is a problem
that I have dealt with for several years.  Many large municipal libraries
have microfilm reader-printers that also can accept microfiche films, and
can produce a hard copy that can then be scanned to create an electronic
version in PDF.  Another possibility is to find a local Family History
Center, which usually has reader-printers on-hand for genealogical
researchers.  The problem with multiple-step conversions is based upon the
fact that microfiche films are at a low resolution, and appear somewhat
blurry when reproduced in hard copy, and blurrier still when subsequently
scanned.  The ultimate quality is significantly inferior to that of a
scanned version of an original hard copy, but is certainly better than
nothing.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of WA2RJP
Sent: Tuesday, March 02, 2010 7:48 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] MSR2000 TRN5074

  

I have a TRN5074 PL board that I cannot find information on. I know it is a
simplex board. If this is installed in a repeater is it used on the RX side
or the TX side?

Also, does anyone know of an economical way to convert microfiche to PDF or
printed form? I have a manual on microfiche but no way to read it.

tnx,

Jim

Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

[Ian Wells]

>From the manual it says it uses a 4 meg crystal 

Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 
---Original Message---
 
From: Don Crutcher
Date: 3/03/2010 3:04:49 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150
 
  
Hello Ian
 
IF your repeater is a UHF and the CTCSS decoder has a 5 MHz crystal
oscillator, it will mix with the transmitter and give a signal at the
receiver frequency 5 MHz lower (in Australia RX 433-435 TX 438-440 MHz)
This a is a common occurrence with UHF Philips FM-828's.
The fix is to use a tuneable CTCSS decoder and not use the one with a
crystal oscillator in it.
Been there and done that. Took years to find out why we had a whistle in the
receiver (heterodyne).
 
Regards
Don vk2zcz
 
- Original Message - 
From: Ian Wells 
To: Repeater-Builder@yahoogroups.com 
Sent: Wednesday, March 03, 2010 2:48 PM
Subject: [Repeater-Builder] Adapting ctcss decoders to maxon pm150


  
Hi guys .I was looking at adapting a midian tds-1 to a maxon pm150 but we
end up with feedback problems when used in repeater .
Can anyone suggest ideas to give rf protection to the decoder chip .I came
up with shielded cable between the board and the chip 
And to install the chip in a metal case on near the radio .or mounting it as
close to the rf motherboard as possible but I don't think 
It will fit under the lid .The reason we would like to use the tds-1 is that
the radio has to unmute before it decodes
And I would like it to decode before the signal opens the mute .This
improves the speed the repeater opening up
On a valid signal .
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 




 <>

Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

[Ian Wells]

Yep uhf 450-470mhz.I will check on that and make sure 
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 
---Original Message---
 
From: Don Crutcher
Date: 3/03/2010 3:04:49 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150
 
  
Hello Ian
 
IF your repeater is a UHF and the CTCSS decoder has a 5 MHz crystal
oscillator, it will mix with the transmitter and give a signal at the
receiver frequency 5 MHz lower (in Australia RX 433-435 TX 438-440 MHz)
This a is a common occurrence with UHF Philips FM-828's.
The fix is to use a tuneable CTCSS decoder and not use the one with a
crystal oscillator in it.
Been there and done that. Took years to find out why we had a whistle in the
receiver (heterodyne).
 
Regards
Don vk2zcz
 
- Original Message - 
From: Ian Wells 
To: Repeater-Builder@yahoogroups.com 
Sent: Wednesday, March 03, 2010 2:48 PM
Subject: [Repeater-Builder] Adapting ctcss decoders to maxon pm150


  
Hi guys .I was looking at adapting a midian tds-1 to a maxon pm150 but we
end up with feedback problems when used in repeater .
Can anyone suggest ideas to give rf protection to the decoder chip .I came
up with shielded cable between the board and the chip 
And to install the chip in a metal case on near the radio .or mounting it as
close to the rf motherboard as possible but I don't think 
It will fit under the lid .The reason we would like to use the tds-1 is that
the radio has to unmute before it decodes
And I would like it to decode before the signal opens the mute .This
improves the speed the repeater opening up
On a valid signal .
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 




 <>

Re: [Repeater-Builder] MSR2000 TRN5074

[larryjspamme...@teleport.com]

Jim, I see the TRN5074A shown in the "MSR-2000 Base and Repeater Control and 
Audio" manual, Motorola Manual Part # 68P81061E40-O. In my manual, the part 
number of the sub-section in that C&A manual which covers the "Tone 
Private-Line Encoder-Decoder Modules", models TRN5073A, TRN5074A and TRN5075A 
is: 68P81062E51-O . 

I don't know if the manual is still available from Motorola, but that's the 
section you probably want to look for in your microfiche. I remember having a 
microfiche copy of the MSR-2000 manuals years ago, and I think the microfiche 
versions were seperate sets for RF and for Control & Audio, just like the 
separate bound service manuals.
 
Larry 



-Original Message- 
From: WA2RJP 
Sent: Mar 2, 2010 7:48 PM 
To: Repeater-Builder@yahoogroups.com 
Subject: [Repeater-Builder] MSR2000 TRN5074 

  



I have a TRN5074 PL board that I cannot find information on. I know it is a 
simplex board. If this is installed in a repeater is it used on the RX side or 
the TX side?

Also, does anyone know of an economical way to convert microfiche to PDF or 
printed form? I have a manual on microfiche but no way to read it.

tnx,

Jim

Re: [Repeater-Builder] Adapting ctcss decoders to maxon pm150

[Don Crutcher]

Hello Ian

IF your repeater is a UHF and the CTCSS decoder has a 5 MHz crystal oscillator, 
it will mix with the transmitter and give a signal at the receiver frequency 5 
MHz lower (in Australia RX 433-435 TX 438-440 MHz)
This a is a common occurrence with UHF Philips FM-828's.
The fix is to use a tuneable CTCSS decoder and not use the one with a crystal 
oscillator in it.
Been there and done that. Took years to find out why we had a whistle in the 
receiver (heterodyne).

Regards
Don vk2zcz

  - Original Message - 
  From: Ian Wells 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Wednesday, March 03, 2010 2:48 PM
  Subject: [Repeater-Builder] Adapting ctcss decoders to maxon pm150



Hi guys .I was looking at adapting a midian tds-1 to a maxon pm150 but 
we end up with feedback problems when used in repeater .
Can anyone suggest ideas to give rf protection to the decoder chip .I 
came up with shielded cable between the board and the chip 
And to install the chip in a metal case on near the radio .or mounting 
it as close to the rf motherboard as possible but I don't think 
It will fit under the lid .The reason we would like to use the tds-1 is 
that the radio has to unmute before it decodes
And I would like it to decode before the signal opens the mute .This 
improves the speed the repeater opening up
On a valid signal .
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
   
   
   


  

[Repeater-Builder] MSR2000 TRN5074

[WA2RJP]

I have a TRN5074 PL board that I cannot find information on. I know it is a 
simplex board. If this is installed in a repeater is it used on the RX side or 
the TX side?


Also, does anyone know of an economical way to convert microfiche to PDF or 
printed form? I have a manual on microfiche but no way to read it.

tnx,

Jim

[Repeater-Builder] Adapting ctcss decoders to maxon pm150

[Ian Wells]

Hi guys .I was looking at adapting a midian tds-1 to a maxon pm150 but we
end up with feedback problems when used in repeater .
Can anyone suggest ideas to give rf protection to the decoder chip .I came
up with shielded cable between the board and the chip 
And to install the chip in a metal case on near the radio .or mounting it as
close to the rf motherboard as possible but I don't think 
It will fit under the lid .The reason we would like to use the tds-1 is that
the radio has to unmute before it decodes
And I would like it to decode before the signal opens the mute .This
improves the speed the repeater opening up
On a valid signal .
Thank You ,Ian Wells
Kerinvale Comaudio,
361 Camboon road, Biloela.4715
Ph 0749922449 Mb 0409159932 
Hm 0749922574 Fx 0749922767
www.kerinvalecomaudio.com.au
 <>

RE: [Repeater-Builder] Re: Hamtronics versus Commercial (Kenwood) Repeater Selection

[Eric Lemmon]

Skipp,

I agree with nearly every point you made, having had experience with both
the Kenwood and Hamtronics repeaters.  However, Hamtronics and similar
repeaters have one serious deficiency: A total lack of PA protection against
high SWR due to antenna or feedline problems.  In addition, the Hamtronics
PAs have no active power control circuitry; if the supply voltage goes up,
the output power goes up, and vice-versa.  The Kenwood TKR-x50 repeaters, on
the other hand, have both active power control and high SWR protection
built-in.

I have a Hamtronics REP-200 repeater in service right now on 224.500 MHz,
and I took the precaution of hanging a single ferrite isolator on its TX
output to protect the very simple 15 watt PA.  So far, so good...

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of skipp025
Sent: Tuesday, March 02, 2010 9:35 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Hamtronics versus Commercial (Kenwood)
Repeater Selection

  

A Hamtronics versus a Kenwood Repeater... 

> If you are considering purchasing the Hamtronics REP-200 
> repeater, I would spend my money on a Kenwood TKR750/850 
> series repeater. They are about the same price, but the 
> Kenwood is a much better built piece of equipment and has 
> a decent built-in controller for basic operation.

As a huge and long time fan of Hamtronics gear and of course 
a full Kenwood Dealer and Service Station... I have to say 
I'm in a corner regarding the above statements... 

Both complete Repeaters are in the same price range and of course 
the Kenwood is a commercial quality/spec unit. But the Hamtronics 
unit is also quite usable, has more desired Amateur Radio 
Operational features (because of the internal controller). The 
Hamtronics Repeater in basic form is lower in transmit power 
output and the chassis is not as rugged (thick metal chassis 
parts). But there's nothing wrong with the supplied chassis of 
the Hamtronics Repeater if you buy the pre-made complete repeater 
versus installing transmit and receive modules in your own 
box of your selected size and material(s). 

Unless you install an additional external repeater controller onto 
the Kenwood Repeater... you don't get an Auto-patch (telephone 
interconnect), the ability to command CTCSS (PL) and Carrier 
Squelch operation on/off and a number of other "bells and whistles" 
you could research by inventorying the feature set page of the 
Hamtronics Repeater Controller Manual (on their web page). 

> If you were looking to buy just the individual pieces from 
> Hamtronics and put your own repeater chassis together, I 
> would prefer to use just about any commercial equipment 
> instead of those pieces. 

... which shows a fairly obvious bias against Hamtronics Equipment 
for what-ever reason good or bad. 

There's nothing wrong with current Hamtronics, Hi-Pro and 
similar products if you understand what you get when you buy 
them. They tend to be very decent performers and in the case 
of the Hamtronics unit... probably also FCC Type Accepted. 

> I am not sure what features you are looking for in the 
> controller but there is a large amount of support available 
> in the amateur community for Arcom, NHRC, CAT, ICS, and 
> Link-Comm controllers. The Pacific Research Controller 
> does not seem to be used much in our area but it looks 
> like it will do most things a person would need.

So will the Hamtronics COR-5 Repeater Controller

> Good luck with your project.

I suspect the selection of radio products would obviously come 
down to motivation and money. If you bought a ready to 
rock-and-roll Kenwood TKR-850 Repeater (from me :-) you'd be 
pretty much in a plug & play situation once you had a duplexer 
& antenna scheme in place. You could then or later install 
an external repeater controller onto the TKR-850 if you needed 
additional operational features not available with the "stock 
TKR-850 repeater controller". 

If you were interested in a converted surplus radio package, 
you could save a bit of money and probably have to get more 
into the technical details of the equipment while trying to 
get it on the air. There are also a fairly large number of 
usable repeaters made from surplus Mobile Radios connected 
"back to back" with basic logic and audio cables.

You could also go with a more modular and hand constructed 
Hamtronics, Hi-Pro Modular type of repeater project, which 
is a favorite topic of mine. You will learn a lot more about 
both repeater and radio operation if you construct your own 
repeater. 

There is a serious glut of cheap, high quality surplus radio 
gear available at flea markets and Ebay... so all bets are off 
on pricing on that type of gear... you might even find people 
willing to donate equipment for little or nothing. 

When 224 MHz band repeater operation is desired... there is 
less plug and play gear available, so 

Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[Matthew Kaufman]

Kris Kirby wrote:
> On Tue, 2 Mar 2010, wd8chl wrote:
>   
>>  >No. Narrowbanding only affects Part 90, and Marine is Part 80.
>>
>> It should also be noted that VHF Part 80 cannot be narrowbanded 
>> without an International agreement. That means it's not likely to 
>> happen for quite a while yet.
>> 
>
> Much like switching aeronautics to FM instead of AM
>
>   
Which would be a bad idea, so won't happen.

Their digital scheme is a different kind of bad idea, but will happen, 
eventually.

Matthew Kaufman

Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[Kris Kirby]

On Tue, 2 Mar 2010, wd8chl wrote:
>  >No. Narrowbanding only affects Part 90, and Marine is Part 80.
> 
> It should also be noted that VHF Part 80 cannot be narrowbanded 
> without an International agreement. That means it's not likely to 
> happen for quite a while yet.

Much like switching aeronautics to FM instead of AM

--
Kris Kirby, KE4AHR
Disinformation Analyst

RE: [Repeater-Builder] 800 MHz spectras

[Mark]

Glad you mentioned that Mike...  I did buy a 9-series remote head Spectra
for 800 that I used to convert a 5-series dash mount 900 Spectra to remote.
Worked QUITE well, I might add!  hehehehe

-Original Message-
From: Repeater-Builder@yahoogroups.com On Behalf Of Mike Morris WA6ILQ

At 07:19 PM 03/01/10, you wrote:
>Hello to the group-
>I have a chance to bid on some spectras offered at a local auction.
>The model number is D35FGA5JB5AK- which makes them 30 watt, 800 Mhz 
>trunked units.
>Question---are they worth considering for the 900 band or are not 
>even worth a second look.
>Thanks for any input.
>John  K7FPM

True 900 MHz radios are common enough.

I'd pass on them unless they are remote
mount and you can get them for really really
cheap (like one to two dollars a piece)
AND if the cables are't cut.  It seems that
every removal monkey just cuts the cable
in half and rips it out from each end.

Personally, I'd love to find a cable and B5 head
kit for a remote mount Spectra.

I know a couple more folks that would love to
convert a front mount Spectra to a remote mount.
With cars getting smaller and smaller, there
are probably a lot more folks out there that would
like to as well.

Mike WA6ILQ

Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[w7trh]

Thanks for the words of wisdom, one and all! 



Tim W7TRH 












- Original Message - 
From: "wd8chl"  
To: Repeater-Builder@yahoogroups.com 
Sent: Tuesday, March 2, 2010 12:15:12 PM GMT -08:00 US/Canada Pacific 
Subject: Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT) 

  




On 3/2/2010 2:02 PM, afa5tp wrote: 
> Hello 
> 
> Thought you folks would be the ones to ask. 
> Am I going to be forced to purchase new marine VHF radios, or is the "Marine 
> Band" going to stay @ 5 kHz dev.? 
> 
> Tim Hardy 
> W7TRH / AFA0TP 
> Vashon Is. Wa. 

>No. Narrowbanding only affects Part 90, and Marine is Part 80. 

It should also be noted that VHF Part 80 cannot be narrowbanded without 
an International agreement. That means it's not likely to happen for 
quite a while yet. 

 
  




On 3/2/2010 2:02 PM, afa5tp wrote: 
> Hello 
> 
> Thought you folks would be the ones to ask. 
> Am I going to be forced to purchase new marine VHF radios, or is the "Marine 
> Band" going to stay @ 5 kHz dev.? 
> 
> Tim Hardy 
> W7TRH / AFA0TP 
> Vashon Is. Wa. 

>No. Narrowbanding only affects Part 90, and Marine is Part 80. 

It should also be noted that VHF Part 80 cannot be narrowbanded without 
an International agreement. That means it's not likely to happen for 
quite a while yet. 

Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[James Delancy]

Marine is not part 90 (I think it is part 22??).  It should NOT be affected.

James


afa5tp wrote:
> Hello
>
> Thought you folks would be the ones to ask.
> Am I going to be forced to purchase new marine VHF radios, or is the "Marine 
> Band" going to stay @ 5 kHz dev.?
>
> Tim Hardy
> W7TRH / AFA0TP
> Vashon Is. Wa.
>
>
>   

Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[wd8chl]

On 3/2/2010 2:02 PM, afa5tp wrote:
> Hello
>
> Thought you folks would be the ones to ask.
> Am I going to be forced to purchase new marine VHF radios, or is the "Marine 
> Band" going to stay @ 5 kHz dev.?
>
> Tim Hardy
> W7TRH / AFA0TP
> Vashon Is. Wa.

 >No. Narrowbanding only affects Part 90, and Marine is Part 80.


It should also be noted that VHF Part 80 cannot be narrowbanded without 
an International agreement. That means it's not likely to happen for 
quite a while yet.

[Repeater-Builder] Slightly OT - schematic Yaesu NC-2

[va2ir]

Perhaps someone out there in RB-land has an old copy of a schematic 
for a yaesu NC-2 standup desk charger. These were used for the FT-207 
and FT-208 handi-talkies back in the day.

I did google it - no results.

Thanks for any help

Ian
VA2IR
Trustee - VE2RJS repeater

Re: [Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[wd8chl]

On 3/2/2010 2:02 PM, afa5tp wrote:
> Hello
>
> Thought you folks would be the ones to ask.
> Am I going to be forced to purchase new marine VHF radios, or is the "Marine 
> Band" going to stay @ 5 kHz dev.?
>
> Tim Hardy
> W7TRH / AFA0TP
> Vashon Is. Wa.

No. Narrowbanding only affects Part 90, and Marine is Part 80.

[Repeater-Builder] Narrow Banding versus Marine Channels (OT)

[afa5tp]

Hello

Thought you folks would be the ones to ask.
Am I going to be forced to purchase new marine VHF radios, or is the "Marine 
Band" going to stay @ 5 kHz dev.?

Tim Hardy
W7TRH / AFA0TP
Vashon Is. Wa.

[Repeater-Builder] Re: Hamtronics versus Commercial (Kenwood) Repeater Selection

[skipp025]

A Hamtronics versus a Kenwood Repeater... 

> If you are considering purchasing the Hamtronics REP-200 
> repeater, I would spend my money on a Kenwood TKR750/850 
> series repeater. They are about the same price, but the 
> Kenwood is a much better built piece of equipment and has 
> a decent built-in controller for basic operation.

As a huge and long time fan of Hamtronics gear and of course 
a full Kenwood Dealer and Service Station... I have to say 
I'm in a corner regarding the above statements... 

Both complete Repeaters are in the same price range and of course 
the Kenwood is a commercial quality/spec unit. But the Hamtronics 
unit is also quite usable, has more desired Amateur Radio 
Operational features (because of the internal controller). The 
Hamtronics Repeater in basic form is lower in transmit power 
output and the chassis is not as rugged (thick metal chassis 
parts). But there's nothing wrong with the supplied chassis of 
the Hamtronics Repeater if you buy the pre-made complete repeater 
versus installing transmit and receive modules in your own 
box of your selected size and material(s). 

Unless you install an additional external repeater controller onto 
the Kenwood Repeater... you don't get an Auto-patch (telephone 
interconnect), the ability to command CTCSS (PL) and Carrier 
Squelch operation on/off and a number of other "bells and whistles" 
you could research by inventorying the feature set page of the 
Hamtronics Repeater Controller Manual (on their web page). 

> If you were looking to buy just the individual pieces from 
> Hamtronics and put your own repeater chassis together, I 
> would prefer to use just about any commercial equipment 
> instead of those pieces. 

... which shows a fairly obvious bias against Hamtronics Equipment 
for what-ever reason good or bad. 

There's nothing wrong with current Hamtronics, Hi-Pro and 
similar products if you understand what you get when you buy 
them. They tend to be very decent performers and in the case 
of the Hamtronics unit... probably also FCC Type Accepted. 

> I am not sure what features you are looking for in the 
> controller but there is a large amount of support available 
> in the amateur community for Arcom, NHRC, CAT, ICS, and 
> Link-Comm controllers. The Pacific Research Controller 
> does not seem to be used much in our area but it looks 
> like it will do most things a person would need.

So will the Hamtronics COR-5 Repeater Controller

> Good luck with your project.

I suspect the selection of radio products would obviously come 
down to motivation and money.  If you bought a ready to 
rock-and-roll Kenwood TKR-850 Repeater (from me :-) you'd be 
pretty much in a plug & play situation once you had a duplexer 
& antenna scheme in place. You could then or later install 
an external repeater controller onto the TKR-850 if you needed 
additional operational features not available with the "stock 
TKR-850 repeater controller". 

If you were interested in a converted surplus radio package, 
you could save a bit of money and probably have to get more 
into the technical details of the equipment while trying to 
get it on the air. There are also a fairly large number of 
usable repeaters made from surplus Mobile Radios connected 
"back to back" with basic logic and audio cables.

You could also go with a more modular and hand constructed 
Hamtronics, Hi-Pro Modular type of repeater project, which 
is a favorite topic of mine. You will learn a lot more about 
both repeater and radio operation if you construct your own 
repeater. 

There is a serious glut of cheap, high quality surplus radio 
gear available at flea markets and Ebay... so all bets are off 
on pricing on that type of gear... you might even find people 
willing to donate equipment for little or nothing. 

When 224 MHz band repeater operation is desired... there is 
less plug and play gear available, so cases like building a 
project using Hamtronics and Converted Surplus gear should be 
a lot more cost effective.  Indeed I've done many a project 
from Hamtronics and Hi-Pro Modules (as well as a number of 
other brands) and of course have provided examples of these 
projects in photos available in the Group Photos Section: 

http://groups.yahoo.com/group/Repeater-Builder/photos/album/1157128983/pic/list 

You could easily duplicate the above mentioned project in 
the UHF 445 MHz Amateur Band with great results.  Keep in mind 
you have to do all the hardware (chassis holes, wiring, mounting 
of modules, testing... etc) but if you're into that type of 
building there's a lot of fun and knowledge to be had... 

So, I'm an advocate of both the buy-it or build it repeater 
method. You have to figure out how much time, money and 
resources you want or are willing  to apply toward getting 
things done (a repeater on the air). 

And of course "Repeaters are like opinions..." or is it the 
converse? 

cheers, 
skipp 

skipp025 at yahoo.com 

> > "k9bf"  wrote:
> > Hi al

[Repeater-Builder] Re: 900 meg Spectra radio

[Skip]

Steering the PLL in the synthesizer is not the only thing you need to 
do.  PL/DPL encoding and decoding is all done in software.  Unless 
you want to add another encoder like Joe did you can't take that 
approach.

I did a similar project for the Syntor X, but I decided to emulate 
the removable code plug in those radios rather than driving the 
synthesizer directly. By replacing the EPROM with a suitably 
programmed PIC you retain all of the original functions of the radio 
including it's superior priority scanning.  The radio can be restored 
to stock in about 3 minutes.

My primary interest was in remote base radios so my controller speaks 
the Icom CI-V and Doug Hall protocols so it can be interfaced to a 
repeater controller.  I never did a fancy control head for mobile use.

One reason for the choice of the Syntor was that a group of hams had 
already decoded the code plug format before I discovered the Syntor.  
If the low level deals of the layout of the EEPROM in the Spectra 
were known or reversed engineered a similar approach could be taken 
with the Spectra.  Of course there's a lot less space in a Spectra 
for add on things, but it's probably possible.

If you are interested in my project you might want to checkout 
http://groups.yahoo.com/group/xcat/ .  The 800 Mhz Syntor is not 
currently supported, and probably never will be.  Syntors require 
fairly extensive modifications for 900 and are 5Khz radios.  At least 
in my area everything is on 12.5 Khz channels and with 900 Mhz 
Maxtracs going for $20 it seems pointless to mess with Syntors.

73's Skip WB6YMH

--- In Repeater-Builder@yahoogroups.com, Doug Bade  wrote:
>
> The reason it died was more apathy in the amateur 
> world when a ham can buy a full featured vhf or 
> uhf or even 6m radio off the shelf that did more 
> for less and required no surgery... Joe and I had 
> discussions on porting it onto 900 radios at the 
> time which were only available as commercial 
> feature starved radios( mostly with no mods 
> available at the time like we have now) and at 
> the time 900 was such slow growth.. no one chose 
> to show interest. If you look back in discussions 
> on ar902mhz you will find queries of interest.. 
> there was none so the project was never pushed...
> 
> What needed to be done is build a self contained 
> head and finish it as a complete unit.. it was 
> not really complete although it was operational. 
> Some of us had issues when we tried to remote 
> control a radio from a remote head as the line 
> drivers had poor immunity to noise...
> 
> Most assembled were hand wired as boards were 
> only available later in the project..
> 
> A replacement project is worthy ( and quite 
> doable ) but I am not sure Joe would care to 
> participate.. as he was pretty dejected about the 
> reception by the amateur community... Timing is everything as they say...
> 
> Many radios such as Maxtrac and almost ALL the 
> GE-et-al 900 radios share a common PLL chip.. it is not magic to program
> 
> Doug
> KD8B
> 
> 
> 
> At 02:50 AM 3/2/2010, you wrote:
> >
> >
> >Oh, BTW, I saw nothing for the Spectra there.
> >
> >Joe M.
> >
> >Chuck Kelsey wrote:
> > > There was, but it's all gone now. At one 
> > point a link to his site was posted
> > > on the Repeater Builder site. Joe made 
> > several posts to this list and became
> > > discouraged at the lack of interest. The 
> > documentation would be of no value
> > > as you need the programmed microprocessor chip to make it work.
> > >
> > > Chuck
> > > WB2EDV
> > >
> > >
> > >
> > > - Original Message -
> > > From: "MCH" <m...@...>
> > > To: 
> > <Repeater-Builder@yahoogroups.com>
> > > Sent: Monday, March 01, 2010 8:44 PM
> > > Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
> > >
> > >
> > >> Interesting. I wonder if there is some tech info on this that is
> > >> available. Any idea how much the cost was and what mods were required?
> > >>
> > >> Or, perhaps some tech data on the synthesizer as far as what pins
> > >> control the frequency, as well as any binary-to-frequency info.
> > >>
> > >> Joe M.
> > >>
> > >> Chuck Kelsey wrote:
> > >>>
> > >>> Joe Burch was his name. It was a frequency agile control head that could
> > >>> be set up for most any type of synthesized commercial radio. You entered
> > >>> the frequency and tone via a keypad.
> > >>>
> > >>> Chuck
> > >>> WB2EDV
> > >>>
> > >>> - Original Message -
> > >>> *From:* Chuck Kelsey 
> > >>> *To:* 
> > Repeater-Builder@yahoogroups.com
> > >>> 
> > >>> *Sent:* Monday, March 01, 2010 8:20 PM
> > >>> *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio
> > >>>
> > >>> Been there, done that. There was no interest in the ham community.
> > >>> Why? It required modifications that most were not willing to tackle.
> > >>> At the

Re: [Repeater-Builder] Re: 900 meg Spectra radio

[Chuck Kelsey]

That's because Joe halted the development. He pleaded with potential users 
to interface it with their choice of radio. I was the test for the Delta-S 
low band. There were several other volunteers who did other radios. As each 
one was proven to work, Joe added the programming for that particular radio 
to the microprocessor. It was a work in progress.

There were several memories (can't recall how many), scan, etc. You could 
change to a non-memory frequency on the fly if you desired.

Maybe Doug Bade remembers, I think this work was back in the late 90's.

Chuck
WB2EDV



- Original Message - 
From: "MCH" 
To: 
Sent: Tuesday, March 02, 2010 2:50 AM
Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio


> Oh, BTW, I saw nothing for the Spectra there.
>
> Joe M.
>
> Chuck Kelsey wrote:
>> There was, but it's all gone now. At one point a link to his site was 
>> posted
>> on the Repeater Builder site. Joe made several posts to this list and 
>> became
>> discouraged at the lack of interest. The documentation would be of no 
>> value
>> as you need the programmed microprocessor chip to make it work.
>>
>> Chuck
>> WB2EDV
>>
>>
>>
>> - Original Message - 
>> From: "MCH" 
>> To: 
>> Sent: Monday, March 01, 2010 8:44 PM
>> Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>>
>>
>>> Interesting. I wonder if there is some tech info on this that is
>>> available. Any idea how much the cost was and what mods were required?
>>>
>>> Or, perhaps some tech data on the synthesizer as far as what pins
>>> control the frequency, as well as any binary-to-frequency info.
>>>
>>> Joe M.
>>>
>>> Chuck Kelsey wrote:

 Joe Burch was his name. It was a frequency agile control head that 
 could
 be set up for most any type of synthesized commercial radio. You 
 entered
 the frequency and tone via a keypad.

 Chuck
 WB2EDV

 - Original Message -
 *From:* Chuck Kelsey 
 *To:* Repeater-Builder@yahoogroups.com
 
 *Sent:* Monday, March 01, 2010 8:20 PM
 *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio

 Been there, done that. There was no interest in the ham community.
 Why? It required modifications that most were not willing to 
 tackle.
 At the moment, the name of the guy escapes me, but I did one of his
 modifications to a 6-meter Delta-S several years ago. He has since
 given up on the idea, but it worked on most any radio.

 Chuck
 WB2EDV
>>>
>>> 
>>>
>>>
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>
>>
>> 
>>
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 9.0.733 / Virus Database: 271.1.1/2717 - Release Date: 03/01/10
>> 14:34:00
>>
>>
>>
>> 
>>
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>






No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.733 / Virus Database: 271.1.1/2717 - Release Date: 03/01/10 
14:34:00

Re: [Repeater-Builder] Re: 900 meg Spectra radio

[Doug Bade]

Yes as well as scan add delete etc


At 08:29 AM 3/2/2010, you wrote:



So it had memories built-in?

Joe M.

Doug Bade wrote:
>
>
> It was not a single channel device it had at least 10 channels... It
> took over the radios pll from outside so radio channel programming and
> capacity was irrelevant... It also had scan, simplex offset and a few
> other amateur features...
>
> I was involved in application testing on a few of the radios under my
> first callsign of KB8GVQ as well as Jim WD8CHL...
>
> It programmed the pll chip that runs the synthesizer by isolating that
> in the radio... the radio though it was on whatever was in a particular
> channel and the PLL was actually wherever Joe and the User wanted it...
>
> The reason for different versions was it had to account for how a given
> PLL was programmed and the offset differences based on the IF for receive.
>
> Doug
> KD8B
>
>
> At 02:50 AM 3/2/2010, you wrote:
>>
>>
>> On the contrary, the docs were very enlightening.
>>
>> Perhaps the reason there was little interest was the fact that it
>> appears to make the radio 'single channel only', and I'm sure many
>> people would have wanted to keep the multi-channel capability. But, as
>> an add-on to the radio as-is, it would have been very interesting.
>>
>> What microprocessor did he use? And are any still available?
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>> > There was, but it's all gone now. At one point a link to his site
>> was posted
>> > on the Repeater Builder site. Joe made several posts to this list
>> and became
>> > discouraged at the lack of interest. The documentation would be of
>> no value
>> > as you need the programmed microprocessor chip to make it work.
>> >
>> > Chuck
>> > WB2EDV
>> >
>> >
>> >
>> > - Original Message -
>> > From: "MCH" <m...@nb.net >
>> > To: < 
Repeater-Builder@yahoogroups.com

>> >
>> > Sent: Monday, March 01, 2010 8:44 PM
>> > Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>> >
>> >
>> >> Interesting. I wonder if there is some tech info on this that is
>> >> available. Any idea how much the cost was and what mods were required?
>> >>
>> >> Or, perhaps some tech data on the synthesizer as far as what pins
>> >> control the frequency, as well as any binary-to-frequency info.
>> >>
>> >> Joe M.
>> >>
>> >> Chuck Kelsey wrote:
>> >>>
>> >>> Joe Burch was his name. It was a frequency agile control head that
>> could
>> >>> be set up for most any type of synthesized commercial radio. You
>> entered
>> >>> the frequency and tone via a keypad.
>> >>>
>> >>> Chuck
>> >>> WB2EDV
>> >>>
>> >>> - Original Message -
>> >>> *From:* Chuck Kelsey < mailto:wb2...@roadrunner.com>
>> >>> *To:* 
Repeater-Builder@yahoogroups.com

>> 
>> >>> < mailto:Repeater-Builder@yahoogroups.com>
>> >>> *Sent:* Monday, March 01, 2010 8:20 PM
>> >>> *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio
>> >>>
>> >>> Been there, done that. There was no interest in the ham community.
>> >>> Why? It required modifications that most were not willing to tackle.
>> >>> At the moment, the name of the guy escapes me, but I did one of his
>> >>> modifications to a 6-meter Delta-S several years ago. He has since
>> >>> given up on the idea, but it worked on most any radio.
>> >>>
>> >>> Chuck
>> >>> WB2EDV
>> >>
>> >> 
>> >>
>> >>
>> >>
>> >> Yahoo! Groups Links
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> >
>> >
>> >
>> > No virus found in this incoming message.
>> > Checked by AVG - www.avg.com <http://www.avg.com/>
>> > Version: 9.0.733 / Virus Database: 271.1.1/2717 - Release Date:
>> 03/01/10
>> > 14:34:00
>> >
>> >
>> >
>> > 
>> >
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>
>
>
>
>
> --
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.733 / Virus Database: 
271.1.1/2718 - Release Date: 03/02/10 02:34:00

>

Re: [Repeater-Builder] Re: 900 meg Spectra radio

[Doug Bade]

It also had VFO tuning step size programming 
etc.besides programmed memories


Doug



At 08:29 AM 3/2/2010, you wrote:



So it had memories built-in?

Joe M.

Doug Bade wrote:
>
>
> It was not a single channel device it had at least 10 channels... It
> took over the radios pll from outside so radio channel programming and
> capacity was irrelevant... It also had scan, simplex offset and a few
> other amateur features...
>
> I was involved in application testing on a few of the radios under my
> first callsign of KB8GVQ as well as Jim WD8CHL...
>
> It programmed the pll chip that runs the synthesizer by isolating that
> in the radio... the radio though it was on whatever was in a particular
> channel and the PLL was actually wherever Joe and the User wanted it...
>
> The reason for different versions was it had to account for how a given
> PLL was programmed and the offset differences based on the IF for receive.
>
> Doug
> KD8B
>
>
> At 02:50 AM 3/2/2010, you wrote:
>>
>>
>> On the contrary, the docs were very enlightening.
>>
>> Perhaps the reason there was little interest was the fact that it
>> appears to make the radio 'single channel only', and I'm sure many
>> people would have wanted to keep the multi-channel capability. But, as
>> an add-on to the radio as-is, it would have been very interesting.
>>
>> What microprocessor did he use? And are any still available?
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>> > There was, but it's all gone now. At one point a link to his site
>> was posted
>> > on the Repeater Builder site. Joe made several posts to this list
>> and became
>> > discouraged at the lack of interest. The documentation would be of
>> no value
>> > as you need the programmed microprocessor chip to make it work.
>> >
>> > Chuck
>> > WB2EDV
>> >
>> >
>> >
>> > - Original Message -
>> > From: "MCH" <m...@nb.net >
>> > To: < 
Repeater-Builder@yahoogroups.com

>> >
>> > Sent: Monday, March 01, 2010 8:44 PM
>> > Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>> >
>> >
>> >> Interesting. I wonder if there is some tech info on this that is
>> >> available. Any idea how much the cost was and what mods were required?
>> >>
>> >> Or, perhaps some tech data on the synthesizer as far as what pins
>> >> control the frequency, as well as any binary-to-frequency info.
>> >>
>> >> Joe M.
>> >>
>> >> Chuck Kelsey wrote:
>> >>>
>> >>> Joe Burch was his name. It was a frequency agile control head that
>> could
>> >>> be set up for most any type of synthesized commercial radio. You
>> entered
>> >>> the frequency and tone via a keypad.
>> >>>
>> >>> Chuck
>> >>> WB2EDV
>> >>>
>> >>> - Original Message -
>> >>> *From:* Chuck Kelsey < mailto:wb2...@roadrunner.com>
>> >>> *To:* 
Repeater-Builder@yahoogroups.com

>> 
>> >>> < mailto:Repeater-Builder@yahoogroups.com>
>> >>> *Sent:* Monday, March 01, 2010 8:20 PM
>> >>> *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio
>> >>>
>> >>> Been there, done that. There was no interest in the ham community.
>> >>> Why? It required modifications that most were not willing to tackle.
>> >>> At the moment, the name of the guy escapes me, but I did one of his
>> >>> modifications to a 6-meter Delta-S several years ago. He has since
>> >>> given up on the idea, but it worked on most any radio.
>> >>>
>> >>> Chuck
>> >>> WB2EDV
>> >>
>> >> 
>> >>
>> >>
>> >>
>> >> Yahoo! Groups Links
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> >
>> >
>> >
>> > No virus found in this incoming message.
>> > Checked by AVG - www.avg.com <http://www.avg.com/>
>> > Version: 9.0.733 / Virus Database: 271.1.1/2717 - Release Date:
>> 03/01/10
>> > 14:34:00
>> >
>> >
>> >
>> > 
>> >
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>
>
>
>
>
> --
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.733 / Virus Database: 
271.1.1/2718 - Release Date: 03/02/10 02:34:00

>

Re: [Repeater-Builder] Re: 900 meg Spectra radio

[MCH]

So it had memories built-in?

Joe M.

Doug Bade wrote:
> 
> 
> It was not a single channel device it had at least 10 channels... It 
> took over the radios pll from outside so radio channel programming and 
> capacity was irrelevant... It also had scan, simplex offset and a few 
> other amateur features...
>  
> I was involved in application testing on a few of the radios under my 
> first callsign of KB8GVQ as well as Jim WD8CHL...
> 
> It programmed the pll chip that runs the synthesizer by isolating that 
> in the radio... the radio though it was on whatever was in a particular 
> channel and the PLL was actually wherever Joe and the User wanted it...
> 
> The reason for different versions was it had to account for how a given 
> PLL was programmed and the offset differences based on the IF for receive.
> 
> Doug
> KD8B
> 
> 
> At 02:50 AM 3/2/2010, you wrote:
>>  
>>
>> On the contrary, the docs were very enlightening.
>>
>> Perhaps the reason there was little interest was the fact that it
>> appears to make the radio 'single channel only', and I'm sure many
>> people would have wanted to keep the multi-channel capability. But, as
>> an add-on to the radio as-is, it would have been very interesting.
>>
>> What microprocessor did he use? And are any still available?
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>> > There was, but it's all gone now. At one point a link to his site 
>> was posted
>> > on the Repeater Builder site. Joe made several posts to this list 
>> and became
>> > discouraged at the lack of interest. The documentation would be of 
>> no value
>> > as you need the programmed microprocessor chip to make it work.
>> >
>> > Chuck
>> > WB2EDV
>> >
>> >
>> >
>> > - Original Message -
>> > From: "MCH" mailto:mch%40nb.net>>
>> > To: < Repeater-Builder@yahoogroups.com 
>> >
>> > Sent: Monday, March 01, 2010 8:44 PM
>> > Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>> >
>> >
>> >> Interesting. I wonder if there is some tech info on this that is
>> >> available. Any idea how much the cost was and what mods were required?
>> >>
>> >> Or, perhaps some tech data on the synthesizer as far as what pins
>> >> control the frequency, as well as any binary-to-frequency info.
>> >>
>> >> Joe M.
>> >>
>> >> Chuck Kelsey wrote:
>> >>>
>> >>> Joe Burch was his name. It was a frequency agile control head that 
>> could
>> >>> be set up for most any type of synthesized commercial radio. You 
>> entered
>> >>> the frequency and tone via a keypad.
>> >>>
>> >>> Chuck
>> >>> WB2EDV
>> >>>
>> >>> - Original Message -
>> >>> *From:* Chuck Kelsey < mailto:wb2...@roadrunner.com>
>> >>> *To:* Repeater-Builder@yahoogroups.com 
>> 
>> >>> < mailto:Repeater-Builder@yahoogroups.com>
>> >>> *Sent:* Monday, March 01, 2010 8:20 PM
>> >>> *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio
>> >>>
>> >>> Been there, done that. There was no interest in the ham community.
>> >>> Why? It required modifications that most were not willing to tackle.
>> >>> At the moment, the name of the guy escapes me, but I did one of his
>> >>> modifications to a 6-meter Delta-S several years ago. He has since
>> >>> given up on the idea, but it worked on most any radio.
>> >>>
>> >>> Chuck
>> >>> WB2EDV
>> >>
>> >> 
>> >>
>> >>
>> >>
>> >> Yahoo! Groups Links
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> >
>> >
>> >
>> > No virus found in this incoming message.
>> > Checked by AVG - www.avg.com 
>> > Version: 9.0.733 / Virus Database: 271.1.1/2717 - Release Date: 
>> 03/01/10
>> > 14:34:00
>> >
>> >
>> >
>> > 
>> >
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
> 
> 
> 
> 
> 
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG - www.avg.com 
> Version: 9.0.733 / Virus Database: 271.1.1/2718 - Release Date: 03/02/10 
> 02:34:00
> 

Re: [Repeater-Builder] Re: 900 meg Spectra radio

[Doug Bade]

The reason it died was more apathy in the amateur 
world when a ham can buy a full featured vhf or 
uhf or even 6m radio off the shelf that did more 
for less and required no surgery... Joe and I had 
discussions on porting it onto 900 radios at the 
time which were only available as commercial 
feature starved radios( mostly with no mods 
available at the time like we have now) and at 
the time 900 was such slow growth.. no one chose 
to show interest. If you look back in discussions 
on ar902mhz you will find queries of interest.. 
there was none so the project was never pushed...


What needed to be done is build a self contained 
head and finish it as a complete unit.. it was 
not really complete although it was operational. 
Some of us had issues when we tried to remote 
control a radio from a remote head as the line 
drivers had poor immunity to noise...


Most assembled were hand wired as boards were 
only available later in the project..


A replacement project is worthy ( and quite 
doable ) but I am not sure Joe would care to 
participate.. as he was pretty dejected about the 
reception by the amateur community... Timing is everything as they say...


Many radios such as Maxtrac and almost ALL the 
GE-et-al 900 radios share a common PLL chip.. it is not magic to program


Doug
KD8B



At 02:50 AM 3/2/2010, you wrote:



Oh, BTW, I saw nothing for the Spectra there.

Joe M.

Chuck Kelsey wrote:
> There was, but it's all gone now. At one 
point a link to his site was posted
> on the Repeater Builder site. Joe made 
several posts to this list and became
> discouraged at the lack of interest. The 
documentation would be of no value

> as you need the programmed microprocessor chip to make it work.
>
> Chuck
> WB2EDV
>
>
>
> - Original Message -
> From: "MCH" <m...@nb.net>
> To: 
<Repeater-Builder@yahoogroups.com>

> Sent: Monday, March 01, 2010 8:44 PM
> Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>
>
>> Interesting. I wonder if there is some tech info on this that is
>> available. Any idea how much the cost was and what mods were required?
>>
>> Or, perhaps some tech data on the synthesizer as far as what pins
>> control the frequency, as well as any binary-to-frequency info.
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>>>
>>> Joe Burch was his name. It was a frequency agile control head that could
>>> be set up for most any type of synthesized commercial radio. You entered
>>> the frequency and tone via a keypad.
>>>
>>> Chuck
>>> WB2EDV
>>>
>>> - Original Message -
>>> *From:* Chuck Kelsey 
>>> *To:* 
Repeater-Builder@yahoogroups.com

>>> 
>>> *Sent:* Monday, March 01, 2010 8:20 PM
>>> *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio
>>>
>>> Been there, done that. There was no interest in the ham community.
>>> Why? It required modifications that most were not willing to tackle.
>>> At the moment, the name of the guy escapes me, but I did one of his
>>> modifications to a 6-meter Delta-S several years ago. He has since
>>> given up on the idea, but it worked on most any radio.
>>>
>>> Chuck
>>> WB2EDV
>>
>> 
>>
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
>
>
> --
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.733 / Virus Database: 271.1.1/2717 - Release Date: 03/01/10
> 14:34:00
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>

Re: [Repeater-Builder] Re: 900 meg Spectra radio

[Doug Bade]

It was not a single channel device it had at 
least 10 channels... It took over the radios pll 
from outside so radio channel programming and 
capacity was irrelevant... It also had scan, 
simplex offset and a few other amateur features...


I was involved in application testing on a few of 
the radios under my first callsign of KB8GVQ as well as Jim WD8CHL...


It programmed the pll chip that runs the 
synthesizer by isolating that in the radio... the 
radio though it was on whatever was in a 
particular channel and the PLL was actually 
wherever Joe and the User wanted it...


The reason for different versions was it had to 
account for how a given PLL was programmed and 
the offset differences based on the IF for receive.


Doug
KD8B


At 02:50 AM 3/2/2010, you wrote:



On the contrary, the docs were very enlightening.

Perhaps the reason there was little interest was the fact that it
appears to make the radio 'single channel only', and I'm sure many
people would have wanted to keep the multi-channel capability. But, as
an add-on to the radio as-is, it would have been very interesting.

What microprocessor did he use? And are any still available?

Joe M.

Chuck Kelsey wrote:
> There was, but it's all gone now. At one 
point a link to his site was posted
> on the Repeater Builder site. Joe made 
several posts to this list and became
> discouraged at the lack of interest. The 
documentation would be of no value

> as you need the programmed microprocessor chip to make it work.
>
> Chuck
> WB2EDV
>
>
>
> - Original Message -
> From: "MCH" <m...@nb.net>
> To: 
<Repeater-Builder@yahoogroups.com>

> Sent: Monday, March 01, 2010 8:44 PM
> Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>
>
>> Interesting. I wonder if there is some tech info on this that is
>> available. Any idea how much the cost was and what mods were required?
>>
>> Or, perhaps some tech data on the synthesizer as far as what pins
>> control the frequency, as well as any binary-to-frequency info.
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>>>
>>> Joe Burch was his name. It was a frequency agile control head that could
>>> be set up for most any type of synthesized commercial radio. You entered
>>> the frequency and tone via a keypad.
>>>
>>> Chuck
>>> WB2EDV
>>>
>>> - Original Message -
>>> *From:* Chuck Kelsey 
>>> *To:* 
Repeater-Builder@yahoogroups.com

>>> 
>>> *Sent:* Monday, March 01, 2010 8:20 PM
>>> *Subject:* Re: [Repeater-Builder] Re: 900 meg Spectra radio
>>>
>>> Been there, done that. There was no interest in the ham community.
>>> Why? It required modifications that most were not willing to tackle.
>>> At the moment, the name of the guy escapes me, but I did one of his
>>> modifications to a 6-meter Delta-S several years ago. He has since
>>> given up on the idea, but it worked on most any radio.
>>>
>>> Chuck
>>> WB2EDV
>>
>> 
>>
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
>
>
> --
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.733 / Virus Database: 271.1.1/2717 - Release Date: 03/01/10
> 14:34:00
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>

Re: [Repeater-Builder] Re: 900 meg Spectra radio

[Doug Bade]

As I recall it was an 8051 family CPU... hardware 
duplication is not the issue..


I built a couple along the way. I know where one 
was and probably still is.. the other I sold at 
Dayton a number of years back...


Doug
KD8B


At 02:12 AM 3/2/2010, you wrote:



Maybe that could change in light of the situation.

But, I was talking more about looking at the hardware and creating a new
source for it.

Of course, if the original is still available, that would be fine, too.

Joe M.

Chuck Kelsey wrote:
> I don't know anything about programming the chip, but am pretty sure you'd
> need the source code in order to make 
changes. Joe programmed the chips and

> wouldn't release the code - he didn't want someone to steal his idea.
>
> Chuck
> WB2EDV
>
>
>
> - Original Message -
> From: "MCH" <m...@nb.net>
> To: 
<Repeater-Builder@yahoogroups.com>

> Sent: Monday, March 01, 2010 9:31 PM
> Subject: Re: [Repeater-Builder] Re: 900 meg Spectra radio
>
>
>> Or if the micro was NLA, use the info as a basis for programming a new
>> one. As long as you knew what line did what, I'm sure it could be revived.
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>>> There was, but it's all gone now. At one point a link to his site was
>>> posted
>>> on the Repeater Builder site. Joe made several posts to this list and
>>> became
>>> discouraged at the lack of interest. The documentation would be of no
>>> value
>>> as you need the programmed microprocessor chip to make it work.
>>>
>>> Chuck
>>> WB2EDV
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>

[Repeater-Builder] (unknown)

[Tony Mancuso]

[Repeater-Builder] Re: Files Uploaded

[KD8BIW]

Well, the DB224's are common antennas, and there seems to be a lot of talk 
about them.  Thought a seperate folder would be nice for them.  That's the only 
good reason I can think of!  Thanks!

--- In Repeater-Builder@yahoogroups.com, "Eric Lemmon"  wrote:
>
> Steve,
> 
> Why not put the "DB-224" folder inside the "DB Antennas" folder?
> 
> 73, Eric Lemmon WB6FLY
>  
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of KD8BIW
> Sent: Saturday, February 27, 2010 10:36 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Files Uploaded
> 
>   
> 
> Hello all,
> 
> I've created 2 folders, and uploaded a few files to them They are "DB-224"
> and "DB Antennas". These are for passing along files relating to the Decible
> DB antennas.
> 
> If the moderators could move some of the other files that are scattered
> around the files page, it would make it alot easier to find them Thanks and
> enjoy!!
> 
> Steve KD8BIW
>