Re: [Repeater-Builder] [Fwd: [DStar-Gateway] Angle Linear]

[Nate Duehr]

Ken Arck wrote:
> At 07:03 PM 3/31/2008, Nate Duehr wrote:
> 
>> This is weird.
>>
>> A posting to the DStar-Gateway YahooGroup that says Chip Angle and
>> AngleLinear are no longer doing any Amateur Radio work.
> 
> <--I believe Chip is a member of this list. In any case, I need to 
> give him a call tomorrow.
> 
> I'll ask
> 
> Ken

Thanks Ken.

Follow-up information from the D-Star Gateway list is that one Amateur 
there received an order as late as just a few days ago, and other had 
his money returned with a notice that Chip will no longer be doing 
Amateur work.

No clue here.  Just thought I might be a "satisfied customer" someday in 
the future.

Nate WY0X

[Repeater-Builder] Help with Zetron 45/48 interconnect.

[Eric Vincent]

Hi group,

 

I’m planning to build a new project and I need information about Zetron
45/48.

 

First, the controller is Zetron 45B but I swap the firmware U3 and U4 to
transform into model 48.  My firmware version is 6.93 and I can do DCS, SMDR
Print, SMDR Storage, DTMF, 2 Tone, 5 Tone and 325 Users.

 

I want to activate the SMDR Storage option and program date and hour into
the unit.

Into Z48 manual, Zetron recommend to Change U5 IC to SMDR Memory IC, maybe
somebody on the group know the number of this IC? Maybe it is just a Smart
Socket like U6 with a real clock IC. The Smart Socket on U6 is a DS1213C.

 

At this moment U5 number is Toshiba TC5565ALP15 and if I go to the Test
Option and run Test Memory Z48 respond BAD:SMDR

 

Another question, can we bypass the back-up battery into the Smart Socket
like DS1213 with other external battery? Zetron sell the Smart socket ±70$
and I saw on Maxim web site for ±15$. 

 

It is very appreciated if somebody of you have hint to bypass the expensive
Zetron kit option.

You can contact me off list at this address (mour at sympatico dot ca)

 

Thank you and 73’

Eric  

 

Re: [Repeater-Builder] Re: Frequency Generator Reccomendations

[no6b]

At 3/31/2008 20:46, you wrote:

>Where can a Singer FM-10 get repaired these days?

Don't know.  I do have a service manual, so if mine breaks I guess the 
answer for me is right here in the shack.

Bob NO6B

Re: [Repeater-Builder] Re: Frequency Generator Reccomendations

[JOHN MACKEY]

Where can a Singer FM-10 get repaired these days?

-- Original Message --
Received: Mon, 31 Mar 2008 08:30:16 PM PDT
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Frequency Generator Reccomendations
SNIP
> Now if you have a couple hundred bucks to spend, I highly recommend an old 
> Singer FM-10.  Lower phase noise than a $20,000 HP synthesized sig. gen., 
> so it's actually usable for adjacent channel rejection measurements.
> 
> Bob NO6B
> 
> 

Re: [Repeater-Builder] [Fwd: [DStar-Gateway] Angle Linear]

[no6b]

At 3/31/2008 19:03, you wrote:

>This is weird.
>
>A posting to the DStar-Gateway YahooGroup that says Chip Angle and
>AngleLinear are no longer doing any Amateur Radio work.
>
>Came from: [EMAIL PROTECTED]
>
>(YahooGroups will probably eat that... wkstill AT franz-family DOT com)
>
>No callsign on his posting.
>
>A weird place to hear about it. Can anyone on RB confirm?
>
>What a bummer. I really wanted to try out his stuff "someday".
>
>(Sigh... all the good vendors always get sick of ham radio, eventually I
>suppose.)
>
>Wonder what happened?

IF this is true (BIG IF), it probably only means Chip won't offer amateur 
discounts or specifically tune/check preamps on amateur 
frequencies.  They're pretty broadbanded, so this wouldn't be a big deal.

Bob NO6B

Re: [Repeater-Builder] Re: Frequency Generator Reccomendations

[no6b]

At 3/31/2008 08:53, you wrote:

>After doing a lot of homework on how to do the following
>without causing damage to your receiver... you can try:
>
>A transmitter can be used as a signal generator (because it
>is one).
>
>You could transmit a low power hand-held radio with a watt or
>two output of rf power into an attenuator. 2 watts into a 20db
>fixed pad gives you about 20mW and from there you can use
>additional fixed and or buy a variable pad off Ebay. In reality
>you could also use a higher power radio but it's very smart money
>to keep things simple.

The problem I always had with this setup was too much leakage.  Most HTs 
have near zero shielding.


>Just got to get creative when you the big test gear is normally
>unavailable or you're on a budget.

What I did before I bought my first sig. gen. was put a scanner inside a 
shielded box, installed an EMI feedthru for power & BNC barrel bulkhead for 
RF out.  I found the point inside the scanner where the LO was strongest & 
connected that to the bulkhead connector through a fixed pad, & used a step 
attenuator on the outside of the box.

I had to add extra lid screws - about one every 2 inches - to keep the LO 
inside the box.

Now if you have a couple hundred bucks to spend, I highly recommend an old 
Singer FM-10.  Lower phase noise than a $20,000 HP synthesized sig. gen., 
so it's actually usable for adjacent channel rejection measurements.

Bob NO6B

Re: [Repeater-Builder] [Fwd: [DStar-Gateway] Angle Linear]

[Ken Arck]

At 07:03 PM 3/31/2008, Nate Duehr wrote:

>This is weird.
>
>A posting to the DStar-Gateway YahooGroup that says Chip Angle and
>AngleLinear are no longer doing any Amateur Radio work.

<--I believe Chip is a member of this list. In any case, I need to 
give him a call tomorrow.

I'll ask

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!"

[Repeater-Builder] [Fwd: [DStar-Gateway] Angle Linear]

[Nate Duehr]

This is weird.

A posting to the DStar-Gateway YahooGroup that says Chip Angle and 
AngleLinear are no longer doing any Amateur Radio work.

Came from: [EMAIL PROTECTED]

(YahooGroups will probably eat that... wkstill AT franz-family DOT com)

No callsign on his posting.

A weird place to hear about it.  Can anyone on RB confirm?

What a bummer.  I really wanted to try out his stuff "someday".

(Sigh... all the good vendors always get sick of ham radio, eventually I 
suppose.)

Wonder what happened?

Nate WY0X

Re: Re: [Repeater-Builder] Re: Compa Station Help

[Ron Wright]

Vern,

Most likely tells you the TX is on 154.335 meaning it would be a 150-160 MHz 
split.

On the solder side of the PCBs you should see a TLD number, something like 
this and if the last digit is a 2 it is 150-160 for both exciter and rcvr.

73, ron, n9ee/r



>From: [EMAIL PROTECTED]
>Date: 2008/03/31 Mon PM 01:49:37 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Re: Compa Station Help

>
>Well the exciter element was still in there and it is 
>154.355.
>
>Does that tell us anything?  The Recv ones are missing.
>
>Thanks,
>Vern
>
>On Sat, 29 Mar 2008 08:12:03 -0500 (CDT)
>  Ron Wright <[EMAIL PROTECTED]> wrote:
>> Vern,
>> 
>> There are basically 2 power leads from the power supply. 
>> 1 is a multi-wire cable that plugs into the card cage 
>>usually and the other is a large, #12, two wire that goes 
>>from the heavy terminal on the rear of the supply to the 
>>main chassis set of terminals, usually in the upper 
>>right.
>> 
>> The multi-wire cable hopefully is there.  It is just 
>>wirings coming out of the PS chassis and carries the low 
>>current 9.6V and 13.8V.  The larger 2 wire is easy to 
>>make and supplies the power for the PA.
>> 
>> 73, ron, n9ee/r
>> 
>> 
>> 
>>>From: [EMAIL PROTECTED]
>>>Date: 2008/03/29 Sat AM 07:51:35 CDT
>>>To: Repeater-Builder@yahoogroups.com
>>>Subject: Re: [Repeater-Builder] Re: Compa Station Help
>> 
>>>
>>>The reason the power supply leads are missing is that I 
>>>got it from the local used supply store.  They had taken 
>>>every thing out of the cabinet and were going to sell the 
>>>cabinet and power supply seperate and probably throw the 
>>>rest out.
>>>
>>>Vern
>>>
>>>On Sat, 29 Mar 2008 06:43:36 -
>>>  "tallinson2" <[EMAIL PROTECTED]> wrote:
 Actually, I wouldn't be too concerned about the 
condition of the rest
 of the station.  As stated earlier, the channel elements 
are often
 removed to prevent operation on the previous user's 
channel.  Not a
 big deal.  The cards are often kept as spares, 
particularly if the
 station was disposed of through a repair shop.  The 
missing PA power
 leads are a bit unusual but, at most, five minutes to 
replace them. 
 If you want to make a repeater, you don't need an 
antenna relay but
 they can be found too, if needed.  I wish I had a dollar 
for every ham
 repeater that is made from converted mobiles, these are 
ALL
 "intermittent duty" transmitters.  With reduced power 
and a cooling
 fan (mainly for peace of mind) this station will be more 
reliable than
 80% of the so called continuous duty ham gear out there. 
 I'd take
 that station anyday in preference to a "Kensu" desktop 
"repeater". 
 The receiver is easily converted with a "recoiled" RF 
front end
 available very reasonably.  Your biggest challenge is 
going to be that
 HIGH split transmitter.
 Tom
 
 --- In Repeater-Builder@yahoogroups.com, "Milt" 
<[EMAIL PROTECTED]> wrote:
>
> Intermittent duty base station that has been robbed of 
>parts.
> 
> No channel elements in the receiver, probably none in 
>the transmitter.
> No station control card.  No high current leads to the 
>final.  As
 noted by 
> earlier posts this is not a unit that will handle long 
>periods of 
> transmission.  Also no antenna relay (not that you need 
>one for what
 you 
> want to do).
> 
> Given the number of missing parts I would be very 
>suspicious of the
 overall 
> condition of the unit.
> 
> Milt
> N3LTQ
> 
> 
> - Original Message - 
> From: <[EMAIL PROTECTED]>
> To: 
> Sent: Friday, March 28, 2008 9:01 PM
> Subject: Re: [Repeater-Builder] Compa Station Help
> 
> 
> > How about some pictures?  They are a little big and 
>some
> > are redundant but hopefully it should give you guys 
>some
> > idea of what I have.
> >
> > http://www.highwayusa.com/motorola/pict0001.jpg
> > http://www.highwayusa.com/motorola/pict0002.jpg
> > http://www.highwayusa.com/motorola/pict0003.jpg
> > http://www.highwayusa.com/motorola/pict0004.jpg
> > http://www.highwayusa.com/motorola/pict0005.jpg
> >
> >
> > Vern
> >
> > On Fri, 28 Mar 2008 19:12:06 -0500 (CDT)
> >  Ron Wright <[EMAIL PROTECTED]> wrote:
> >> Vern,
> >>
> >> Usually the easiest way to find what band and band
> >>segment it are on is to look at the Channel Elements, 
>the
> >>small cans in the exciter and receiver.  They unplug. 
> A
> >>label on the top of the cans gives its frequency.
> >> However, to prevent them being put back on the same 
>freq
> >>some pull the elements.  Most always one can get to 
>them
> >>thru a panel behind the receiver.  Same with some
> >>exciters.

Re: [Repeater-Builder] Re: Compa Station Help

[mung]

Well the exciter element was still in there and it is 
154.355.

Does that tell us anything?  The Recv ones are missing.

Thanks,
Vern

On Sat, 29 Mar 2008 08:12:03 -0500 (CDT)
  Ron Wright <[EMAIL PROTECTED]> wrote:
> Vern,
> 
> There are basically 2 power leads from the power supply. 
> 1 is a multi-wire cable that plugs into the card cage 
>usually and the other is a large, #12, two wire that goes 
>from the heavy terminal on the rear of the supply to the 
>main chassis set of terminals, usually in the upper 
>right.
> 
> The multi-wire cable hopefully is there.  It is just 
>wirings coming out of the PS chassis and carries the low 
>current 9.6V and 13.8V.  The larger 2 wire is easy to 
>make and supplies the power for the PA.
> 
> 73, ron, n9ee/r
> 
> 
> 
>>From: [EMAIL PROTECTED]
>>Date: 2008/03/29 Sat AM 07:51:35 CDT
>>To: Repeater-Builder@yahoogroups.com
>>Subject: Re: [Repeater-Builder] Re: Compa Station Help
> 
>>
>>The reason the power supply leads are missing is that I 
>>got it from the local used supply store.  They had taken 
>>every thing out of the cabinet and were going to sell the 
>>cabinet and power supply seperate and probably throw the 
>>rest out.
>>
>>Vern
>>
>>On Sat, 29 Mar 2008 06:43:36 -
>>  "tallinson2" <[EMAIL PROTECTED]> wrote:
>>> Actually, I wouldn't be too concerned about the 
>>>condition of the rest
>>> of the station.  As stated earlier, the channel elements 
>>>are often
>>> removed to prevent operation on the previous user's 
>>>channel.  Not a
>>> big deal.  The cards are often kept as spares, 
>>>particularly if the
>>> station was disposed of through a repair shop.  The 
>>>missing PA power
>>> leads are a bit unusual but, at most, five minutes to 
>>>replace them. 
>>> If you want to make a repeater, you don't need an 
>>>antenna relay but
>>> they can be found too, if needed.  I wish I had a dollar 
>>>for every ham
>>> repeater that is made from converted mobiles, these are 
>>>ALL
>>> "intermittent duty" transmitters.  With reduced power 
>>>and a cooling
>>> fan (mainly for peace of mind) this station will be more 
>>>reliable than
>>> 80% of the so called continuous duty ham gear out there. 
>>> I'd take
>>> that station anyday in preference to a "Kensu" desktop 
>>>"repeater". 
>>> The receiver is easily converted with a "recoiled" RF 
>>>front end
>>> available very reasonably.  Your biggest challenge is 
>>>going to be that
>>> HIGH split transmitter.
>>> Tom
>>> 
>>> --- In Repeater-Builder@yahoogroups.com, "Milt" 
>>><[EMAIL PROTECTED]> wrote:

 Intermittent duty base station that has been robbed of 
parts.
 
 No channel elements in the receiver, probably none in 
the transmitter.
 No station control card.  No high current leads to the 
final.  As
>>> noted by 
 earlier posts this is not a unit that will handle long 
periods of 
 transmission.  Also no antenna relay (not that you need 
one for what
>>> you 
 want to do).
 
 Given the number of missing parts I would be very 
suspicious of the
>>> overall 
 condition of the unit.
 
 Milt
 N3LTQ
 
 
 - Original Message - 
 From: <[EMAIL PROTECTED]>
 To: 
 Sent: Friday, March 28, 2008 9:01 PM
 Subject: Re: [Repeater-Builder] Compa Station Help
 
 
 > How about some pictures?  They are a little big and 
some
 > are redundant but hopefully it should give you guys 
some
 > idea of what I have.
 >
 > http://www.highwayusa.com/motorola/pict0001.jpg
 > http://www.highwayusa.com/motorola/pict0002.jpg
 > http://www.highwayusa.com/motorola/pict0003.jpg
 > http://www.highwayusa.com/motorola/pict0004.jpg
 > http://www.highwayusa.com/motorola/pict0005.jpg
 >
 >
 > Vern
 >
 > On Fri, 28 Mar 2008 19:12:06 -0500 (CDT)
 >  Ron Wright <[EMAIL PROTECTED]> wrote:
 >> Vern,
 >>
 >> Usually the easiest way to find what band and band
 >>segment it are on is to look at the Channel Elements, 
the
 >>small cans in the exciter and receiver.  They unplug. 
 A
 >>label on the top of the cans gives its frequency.
 >> However, to prevent them being put back on the same 
freq
 >>some pull the elements.  Most always one can get to 
them
 >>thru a panel behind the receiver.  Same with some
 >>exciters.
 >>
 >> There were 3 ranges for VHF as someone stated.
 >>
 >> Wonder what the heat sink looks like.  The continuous
 >>duty has large 17"w x 7h x 6 deep heat sink. 
 Otherwise
 >>it is built into the main chassis or is tube amp.
 >>
 >> Mot made a number of variations of these.  They do 
make
 >>good repeaters.  Just takes some work.
 >>
 >> One clue if it is a repeater and not a base station 
is
 >>the card cage usually has a "Squelch Gate" card.  This
 >>controls rx to tx keying.
 >>
 >> I think others ga

[Repeater-Builder] Re: Frequency Generator Reccomendations

[skipp025]

> "Jeff DePolo" <[EMAIL PROTECTED]> wrote:
> Another trick for creating a makeshift sig gen is to find 
> a cheap scanner that has a lot of local oscillator leakage 
> out the antenna connector.

Aaahhh... you've had an older Bearcat Scanner in the past... :-) 

> Program the desired frequency plus (or minus, if it's high-side 
> injection, which most aren't) the IF into the scanner to get a 
> carrier on your desired frequency.

And the IF is sometimes non-standard when compared to more 
traditional receivers. 10.8 MHz for some of the old Bearcats... 
Others use 10.7MHz, 21.4MHz, and a number of other choices 
depending on the mfgr. 

> An HP 8640B is a tried n' true sig gen readily available on 
> the surplus market.  Good to 512 MHz. You can probably find 
> one in decent shape for a few hundred bucks on Ebay or hamfests.
>   --- Jeff WN3A

harken back to the hp-608 in the real days of old, when knights 
were bold. 

cheers, 
s. 

> > -Original Message-
> > From: Repeater-Builder@yahoogroups.com 
> > [mailto:[EMAIL PROTECTED] On Behalf Of skipp025
> > Sent: Monday, March 31, 2008 11:54 AM
> > To: Repeater-Builder@yahoogroups.com
> > Subject: [Repeater-Builder] Re: Frequency Generator Reccomendations
> > 
> > After doing a lot of homework on how to do the following 
> > without causing damage to your receiver... you can try: 
> > 
> > A transmitter can be used as a signal generator (because it 
> > is one). 
> > 
> > You could transmit a low power hand-held radio with a watt or 
> > two output of rf power into an attenuator. 2 watts into a 20db 
> > fixed pad gives you about 20mW and from there you can use 
> > additional fixed and or buy a variable pad off Ebay. In reality 
> > you could also use a higher power radio but it's very smart money 
> > to keep things simple.
> > 
> > Something like one the following would be a killer setup. 
> > 
> > JFW 50DR-046 DUAL ROTARY ATTENUATORS
> > Ebay Item number: 180226868788 
> > 
> > If you cringe at the thought of using a transmitter as a signal 
> > generator... make a 3dB or 6dB rf pad in a small bud-box (metal) 
> > and insert a low current value, Pico-Fuse in series with the 
> > center resistance. Any serious transmitter power will blow the 
> > Pico-Fuse. 
> > 
> > Early day service monitors didn't have fused generator output 
> > ports. We fixed fused pads to the generator output, which saved 
> > the day many, many times. 
> > 
> > Just got to get creative when you the big test gear is normally 
> > unavailable or you're on a budget. 
> > 
> > cheers, 
> > s. 
> > 
> > > Richard Bessey  wrote:
> > >
> > > Builders,
> > > I was hopeful I could get some advice. I have two Motorola 
> > Mitrek UHF 
> > > radios I am converting to a GMRS repeater.
> > > 
> > > I have spent hours getting the controller wired, radios tuned, coax 
> > > setup, etc... I am in the final stages of tuning the 
> > reciever and have 
> > > ran into the problem of requiring a frequency generator for 
> > 462/467 Mhz 
> > > with adjustable amplitude/voltage. A local ham had a 
> > collection of old 
> > > tube freq. generators, but I had alot of trouble getting 
> > the ones to 
> > > work on UHF.
> > > 
> > > I also noticed several Frequency generator/counter combos 
> > on ebay, they 
> > > look handy and fairly well priced.
> > > 
> > > Does anyone have recommendations as far as make/model. I don't need 
> > > anything fancy, as long as it works well and is reasonably 
> > priced (The 
> > > cheaper, the better)
> > > 
> > > Regards,
> > > 
> > > Richard Bessey
> > >
> > 
> > 
> > 
> >  
> > 
> > 
> > No virus found in this incoming message.
> > Checked by AVG.
> > Version: 7.5.519 / Virus Database: 269.22.1 - Release Date: 
> > 3/26/2008 12:00 AM
> > 
> > 
> >
>

RE: [Repeater-Builder] Re: Frequency Generator Reccomendations

[Jeff DePolo]

Another trick for creating a makeshift sig gen is to find a cheap scanner
that has a lot of local oscillator leakage out the antenna connector.
Program the desired frequency plus (or minus, if it's high-side injection,
which most aren't) the IF into the scanner to get a carrier on your desired
frequency.

An HP 8640B is a tried n' true sig gen readily available on the surplus
market.  Good to 512 MHz.  You can probably find one in decent shape for a
few hundred bucks on Ebay or hamfests.

--- Jeff WN3A

> -Original Message-
> From: Repeater-Builder@yahoogroups.com 
> [mailto:[EMAIL PROTECTED] On Behalf Of skipp025
> Sent: Monday, March 31, 2008 11:54 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Frequency Generator Reccomendations
> 
> After doing a lot of homework on how to do the following 
> without causing damage to your receiver... you can try: 
> 
> A transmitter can be used as a signal generator (because it 
> is one). 
> 
> You could transmit a low power hand-held radio with a watt or 
> two output of rf power into an attenuator. 2 watts into a 20db 
> fixed pad gives you about 20mW and from there you can use 
> additional fixed and or buy a variable pad off Ebay. In reality 
> you could also use a higher power radio but it's very smart money 
> to keep things simple.
> 
> Something like one the following would be a killer setup. 
> 
> JFW 50DR-046 DUAL ROTARY ATTENUATORS
> Ebay Item number: 180226868788 
> 
> If you cringe at the thought of using a transmitter as a signal 
> generator... make a 3dB or 6dB rf pad in a small bud-box (metal) 
> and insert a low current value, Pico-Fuse in series with the 
> center resistance. Any serious transmitter power will blow the 
> Pico-Fuse. 
> 
> Early day service monitors didn't have fused generator output 
> ports. We fixed fused pads to the generator output, which saved 
> the day many, many times. 
> 
> Just got to get creative when you the big test gear is normally 
> unavailable or you're on a budget. 
> 
> cheers, 
> s. 
> 
> > Richard Bessey <[EMAIL PROTECTED]> wrote:
> >
> > Builders,
> > I was hopeful I could get some advice. I have two Motorola 
> Mitrek UHF 
> > radios I am converting to a GMRS repeater.
> > 
> > I have spent hours getting the controller wired, radios tuned, coax 
> > setup, etc... I am in the final stages of tuning the 
> reciever and have 
> > ran into the problem of requiring a frequency generator for 
> 462/467 Mhz 
> > with adjustable amplitude/voltage. A local ham had a 
> collection of old 
> > tube freq. generators, but I had alot of trouble getting 
> the ones to 
> > work on UHF.
> > 
> > I also noticed several Frequency generator/counter combos 
> on ebay, they 
> > look handy and fairly well priced.
> > 
> > Does anyone have recommendations as far as make/model. I don't need 
> > anything fancy, as long as it works well and is reasonably 
> priced (The 
> > cheaper, the better)
> > 
> > Regards,
> > 
> > Richard Bessey
> >
> 
> 
> 
>  
> 
> 
> No virus found in this incoming message.
> Checked by AVG.
> Version: 7.5.519 / Virus Database: 269.22.1 - Release Date: 
> 3/26/2008 12:00 AM
> 
> 
> 

Re: [Repeater-Builder] Frequency Generator Reccomendations

[Ron Wright]

Richard,

A good generator would be a Service Monitor like one of the older IFRs, but 
these go for $500-$1000 for a used one.  Many are in questionable condition, 
but some are pretty good.

However, just for a generator I use an old Motorola "Solid State Generator" 
(that is the only label on it).  They are shown in the Micor manuals.  It 
covers 25-470 MHz and after about 30 minutes warm up is pretty stable.  Of 
course analog tuning and not good for freq source, but the labeled variable 
knob output attenuator is good for tuning and check sen of receivers.

You can probably get one for nothing to maybe $60.

I have an older version, but think it is tube.  I can check it out and see if 
still works.  Have not had it plugged in for at least 3 years.  If interested 
I'll drag it out and check.  I would take $30, but shipping would probably be 
$20.  It is heavy, 2 lb.  Not too big; maybe 12h x 8w x 7d.  Looks similar to 
the Mot above, but tall instead of wide.

73, ron, n9ee/r


>From: Richard Bessey <[EMAIL PROTECTED]>
>Date: 2008/03/29 Sat AM 01:18:13 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Frequency Generator Reccomendations

>
>Builders,
>I was hopeful I could get some advice. I have two Motorola Mitrek UHF 
>radios I am converting to a GMRS repeater.
>
>I have spent hours getting the controller wired, radios tuned, coax 
>setup, etc... I am in the final stages of tuning the reciever and have 
>ran into the problem of requiring a frequency generator for 462/467 Mhz 
>with adjustable amplitude/voltage. A local ham had a collection of old 
>tube freq. generators, but I had alot of trouble getting the ones to 
>work on UHF.
>
>I also noticed several Frequency generator/counter combos on ebay, they 
>look handy and fairly well priced.
>
>Does anyone have recommendations as far as make/model. I don't need 
>anything fancy, as long as it works well and is reasonably priced (The 
>cheaper, the better)
>
>Regards,
>
>Richard Bessey
>   
> 


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: [Repeater-Builder] Frequency Generator Reccomendations

[Ron Wright]

Richard,

A good generator would be a Service Monitor like one of the older IFRs, but 
these go for $500-$1000 for a used one.  Many are in questionable condition, 
but some are pretty good.

However, just for a generator I use an old Motorola "Solid State Generator" 
(that is the only label on it).  They are shown in the Micor manuals.  It 
covers 25-470 MHz and after about 30 minutes warm up is pretty stable.  Of 
course analog tuning and not good for freq source, but the labeled variable 
knob output attenuator is good for tuning and check sen of receivers.

You can probably get one for nothing to maybe $60.

I have an older version, but think it is tube.  I can check it out and see if 
still works.  Have not had it plugged in for at least 3 years.  If interested 
I'll drag it out and check.  I would take $30, but shipping would probably be 
$20.  It is heavy, 2 lb.  Not too big; maybe 12h x 8w x 7d.  Looks similar to 
the Mot above, but tall instead of wide.

73, ron, n9ee/r




>From: Richard Bessey <[EMAIL PROTECTED]>
>Date: 2008/03/29 Sat AM 01:18:13 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Frequency Generator Reccomendations

>
>Builders,
>I was hopeful I could get some advice. I have two Motorola Mitrek UHF 
>radios I am converting to a GMRS repeater.
>
>I have spent hours getting the controller wired, radios tuned, coax 
>setup, etc... I am in the final stages of tuning the reciever and have 
>ran into the problem of requiring a frequency generator for 462/467 Mhz 
>with adjustable amplitude/voltage. A local ham had a collection of old 
>tube freq. generators, but I had alot of trouble getting the ones to 
>work on UHF.
>
>I also noticed several Frequency generator/counter combos on ebay, they 
>look handy and fairly well priced.
>
>Does anyone have recommendations as far as make/model. I don't need 
>anything fancy, as long as it works well and is reasonably priced (The 
>cheaper, the better)
>
>Regards,
>
>Richard Bessey
>   
> 


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: [Repeater-Builder] Motorola RICK Compatability

[Scannr]

I have used the "Rick" on the following radio's
Maxtrac, GM300/350, sm50/120, CDM750/1250/1550, M1225 
 
Basicly any of the Motorola line of radios that has the 16/20 pin 
accessory connector in which you can change the programing of the  pins
 
I've even used kenwood and midland radio's with the Rick
 
Steve



**Create a Home Theater Like the Pros. Watch the video on AOL 
Home.  
(http://home.aol.com/diy/home-improvement-eric-stromer?video=15&ncid=aolhom000301)

[Repeater-Builder] Re: Frequency Generator Reccomendations

[skipp025]

After doing a lot of homework on how to do the following 
without causing damage to your receiver... you can try: 

A transmitter can be used as a signal generator (because it 
is one). 

You could transmit a low power hand-held radio with a watt or 
two output of rf power into an attenuator. 2 watts into a 20db 
fixed pad gives you about 20mW and from there you can use 
additional fixed and or buy a variable pad off Ebay. In reality 
you could also use a higher power radio but it's very smart money 
to keep things simple.

Something like one the following would be a killer setup. 

JFW 50DR-046 DUAL ROTARY ATTENUATORS
Ebay Item number: 180226868788  

If you cringe at the thought of using a transmitter as a signal 
generator... make a 3dB or 6dB rf pad in a small bud-box (metal) 
and insert a low current value, Pico-Fuse in series with the 
center resistance. Any serious transmitter power will blow the 
Pico-Fuse. 

Early day service monitors didn't have fused generator output 
ports. We fixed fused pads to the generator output, which saved 
the day many, many times. 

Just got to get creative when you the big test gear is normally 
unavailable or you're on a budget. 

cheers, 
s. 


> Richard Bessey <[EMAIL PROTECTED]> wrote:
>
> Builders,
> I was hopeful I could get some advice. I have two Motorola Mitrek UHF 
> radios I am converting to a GMRS repeater.
> 
> I have spent hours getting the controller wired, radios tuned, coax 
> setup, etc... I am in the final stages of tuning the reciever and have 
> ran into the problem of requiring a frequency generator for 462/467 Mhz 
> with adjustable amplitude/voltage. A local ham had a collection of old 
> tube freq. generators, but I had alot of trouble getting the ones to 
> work on UHF.
> 
> I also noticed several Frequency generator/counter combos on ebay, they 
> look handy and fairly well priced.
> 
> Does anyone have recommendations as far as make/model. I don't need 
> anything fancy, as long as it works well and is reasonably priced (The 
> cheaper, the better)
> 
> Regards,
> 
> Richard Bessey
>

Re: [Repeater-Builder] Mitrek UHF high power manual

[Cort Buffington]

I can try to scan the higher power amplifier pages out of mine to add  
to it.


On Mar 20, 2008, at 11:12 AM, George Henry wrote:

I have the 30/50 watt manual, already scanned. Problem is, it's 18  
MB, and most ISP's won't allow a message attachment that large. I  
sent it to Mike Morris in several parts a month or so ago, but I  
guess he hasn't gotten it posted to the RB site yet Anybody else  
got a server they can host it on?


George, KA3HSW / WQGJ413

-Original Message-
>From: Ron Wright <[EMAIL PROTECTED]>
>Sent: Mar 20, 2008 8:28 AM
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Mitrek UHF high power manual
>
>Justin,
>
>For $15 on e-bay at:
>
>http://cgi.ebay.com/MOTOROLA-MITREK-UHF-MANUAL-68P81037E75-B_W0QQitemZ120193561771QQihZ002QQcategoryZ15050QQrdZ1QQssPageNameZWD1VQQ_trksidZp1638.m118.l1247QQcmdZViewItem
>
>It is for 30/50 W. Normally the only difference is the PA so the  
particulars of the higher power PA would be easy to find.

>
>As for scanning in the manual is over 100 pages.
>
>73, ron, n9ee/r
>
>
>

[Repeater-Builder] Frequency Generator Reccomendations

[Richard Bessey]

Builders,
I was hopeful I could get some advice. I have two Motorola Mitrek UHF 
radios I am converting to a GMRS repeater.

I have spent hours getting the controller wired, radios tuned, coax 
setup, etc... I am in the final stages of tuning the reciever and have 
ran into the problem of requiring a frequency generator for 462/467 Mhz 
with adjustable amplitude/voltage. A local ham had a collection of old 
tube freq. generators, but I had alot of trouble getting the ones to 
work on UHF.

I also noticed several Frequency generator/counter combos on ebay, they 
look handy and fairly well priced.

Does anyone have recommendations as far as make/model. I don't need 
anything fancy, as long as it works well and is reasonably priced (The 
cheaper, the better)

Regards,

Richard Bessey

Re: [Repeater-Builder] Using Alinco DR-605 Dual Band Mobiles for Repeater

[briguy1q2w]

Thank you to everyone for your help and comments!
I plan to seek out help from a local commercial radio shop and have
him set me up properly.

I'm now in my fifties and have been a Ham since I was thirteen. No way
do I want to jeopardize my ticket.

I am not sure if this thread can be "closed" but I'm done.

Sincerely:

Brian Duerr/WB2JIX

[Repeater-Builder] RE: Re: Receiver Noise figure - FMI factor

[Kit Scally]

 I'm having great trubs posting this message, so here's a second  resend -
don't know what happened to my first send s  last week ! 
 Kit

 
*** 

Bob,
 
What you're looking for is "'FM Improvement factor". 
This is a ratio of the unmodulated C/N to the detector i/p to the SNR of the
demodulated signal.
The formula for (satellite) TV signals which used to be FM-modulated is:
20log (deltaFv/2Bv) + 10log(IF BW / video BW) +k (usually ~7)
and for SCPC type services is simply 10log(df^2/fm^2) where f = rms channel
deviation and m = highest modulating (baseband) frequency.
So a C/N of 10dB transforms to a baseband SNR of ~16dB.
 
Rgds,
 
Kit
VK2LL
 
snip>>
I had always wondered what the 12 dB SINAD level equated to in dB of signal 
above the noise floor. Thanks for posting this info.

BTW, I'm curious about the theory behind the SINAD-C/N relationship. If 
you have any links to references on this subject please post. Thanks.

Bob NO6B
>>

[Repeater-Builder] Motorola RICK Compatability

[Chris Brown]

Good Afternoon one and all,

I am new to this rpeater bulding and I am looking for some advise from you
teckies out there. Basically I have a brand new repeater Motorola repeater
housing and I am hoping to make my own repeater (UHF) with the use of two
Motorola Mobile units. I have been offered for a very good price a Motorola
R.I.C.K. HLN-B. Can any one advise me of what mobiles this rick would be
best suited to? or is it purley for the GM300's? GM350's, GM950's? any info
very much appreciated as I have yet to purchase the mobiles to fit it.

Many thanks for your time,
With Kind regards
Chris (UK)

[Repeater-Builder] securitron ident

[ROGER WOOLLEY]

hi all dose anyone have any information or tricks for programing a 
securitron model 97813 ident /controller thank you roger woolley