Re: [Repeater-Builder] Off Topic

2009-01-18 Thread Alexandre Souza
 We think that *IF* we can find a way to load Win98 via floppy, we can get 
 it
 to recognize the drive, but for now, the CD is unusable. Problem is, Win98
 is 200+ MB...  That's over 200 floppies!!!  *OR* we need the Win95 device
 driver for the CD drive.

You have two easy alternatives:
- Take the HD off and use an external HD enclosure to load up the disks 
of W98 in a dir. I usually create a dir called win98 and copy all files 
there. In www.dealextreme.com you can find an enclousre for less than 10 
dollars.
- Use a parallel laplink cable to load the files thru the parallel port 
(faster than serial)

Does the laptop have a USB port?



Re: [Repeater-Builder] Re: Repeater controller to be used with MSF5000

2009-01-13 Thread Alexandre Souza
 Not only am I cheap, I'm lazy. Building something takes time. I was mainly 
 interested in a product I could buy that just needed power, incoming 
 audio, and a set of dry contacts that could be stuck inside the MSF5000 
 cabinet and be ready to use in a matter of minutes.

I have that, but in Brazil :o)



Re: [Repeater-Builder] Re: OT- Digital TV converter box issues

2009-01-11 Thread Alexandre Souza
 At the risk of dragging this OT thread out a little further, I have a tech
 question.  I need to order a number of converter boxes to use as emergency
 alert system (EAS) receivers (just using the left/right audio outputs, 
 don't
 care about video).  I need to find boxes that will power up automatically,
 i.e. if there is a power failure, I need to make sure the box comes on
 automatically when power is restored, and that it's on the same channel it
 was on prior to the power failure.  I'm guessing most converters have 
 soft
 power switches, and probably most don't remember what state they were in
 after a power failure (i.e. on or off), but maybe some remember which
 channel they were on.  Anyone know of any boxes that meet the above two
 requirements?

Jeff, you can do that with a $3 microcontroller easily. PVT me if you 
need some help.



Re: [Repeater-Builder] Re: OT- Digital TV converter box issues

2009-01-11 Thread Alexandre Souza
 If you're hinting at sending IR to turn the box on, and change to the
 desired channel, after the power failure, I thought of that, but I'm 
 looking
 for an off-the-shelf solution.

This is something that needs to be done only once (for all the boxes) 
and replicated. If you need any help anyways, I'm here to help :o)



Re: [Repeater-Builder] Vertex FTL-1011H CE7 Software Q's

2008-12-26 Thread Alexandre Souza
 Anybody have a clue as to how to hack the CE7 software for the
 FTL-1011H 99 channel radio? I have a low split low band model that I
 would like to use on 10 meters. The low frequency limit is set to
 29.7mhz right now. I have been through the software with a hex editor,
 but can't seem to locate that parameter. Any help appreciated, thanks!

The old trick of entering the frequency with SHIFT pressed (only for the 
numbers, not for the decimal point) doesn't work? :oO



Re: [Repeater-Builder] Used Outdoor Repeater Cabinets?

2008-12-08 Thread Alexandre Souza
  Does anyone know of any sources for used outdoor repeater cabinets?
 I've gotten permission from a local tower owner to locate an amateur
 repeater on their tower but one of the stipulations was no access to
 the existing equipment room. After a quick search of Tessco I see the
 cheapest outdoor enclosure is going for around $2k. Does anyone know
 where one could be found for cheap? Any information is greatly
 appreciated, thanks.

Alex, may I send you by e-mail some photos of a very cheap (to buy and 
to make) enclosure I'm used to use?



Re: [Repeater-Builder] Need SWR meter recomendation (Bird 43)

2008-11-28 Thread Alexandre Souza
In using the Bird 43 outside the bandpass listed on the slug, I have found 
that the meter works very well for tuning an antenna for minimum SWR. The 
power readings on the meter are just not accurate when the frequency being 
measured is outside the slug bandwidth. I have not gone all the way down to 
HF to make a comparison, since I have some HF slugs, but the variety of 
VHF/UHF slugs I have work fine to tell me that something is wrong with an 
antenna or feedline, or even a Z Matcher adjustment when used out of band. 
You just can't record the power readings as actual.
===

BTW I could use a 100W VHF and a 1000W 2-30MHz slug here in Brazil :) If 
someone has a spare willing to sell for a cheap price...Remember I'm a poor 
third worlder who lives with monkeys on street :oD

Greetz :)
Pu1BZZ Alexandre




Re: [Repeater-Builder] We all Love Super 33+ - Was Antenna connectors sealing instructions

2008-08-23 Thread Alexandre Souza
 Whomever locates the best price, post it here. I've always purchased at an
 electrical supply house and get a box of ten rolls at a time for a 
 slightly
 better price. The first box I bought was somewhere around $18.50, so you 
 can
 see I've been purchasing it for a long time.

I'm curious if this is the same scotch tape I see in Brazil. I'll try to 
order a pack to experiment here ;o) 



Re: [Repeater-Builder] Registered Sex Offenders

2008-08-10 Thread Alexandre Souza

All applications for station licenses, or modifications or renewals
thereof, shall set forth such facts as the Commission by regulation may
prescribe as to the citizenship, character, and financial, technical, and
other qualifications of the applicant to operate the station;.

Financial? It means that if someone hasn't enough money to be a ham, he 
cannot be? :oO




Re: [Repeater-Builder]SCOM 7330 Question

2008-08-06 Thread Alexandre Souza
Ken, my problem is that when a company sells me something that turns out to 
be totally useless and then fails to offer any solution or compensation, 
it is hard for me to have any confidence in their products.

Talk this way to Intel, Nvidia, AMD, ATI or any PC manufacturer? :o)

Greetz from Brazil
Alexandre Souza
PU1BZZ



Re: [Repeater-Builder] Unknow Radio - Anyone can help?

2008-08-02 Thread Alexandre Souza
 Can you post a photo or two of the interior ?

I don't have it, but you can take a look at the schematics on 
http://www.msxpro.com/py2bbs/esquemateca.php

It is the last schematic, the Unitel Patrulheiro III

Greetz from Brazil
Alexandre - PU1BZZ 



Re: [Repeater-Builder] Unknow Radio - Anyone can help?

2008-08-02 Thread Alexandre Souza
I went to the site and downloaded the zip file.  Figure 8 in the PDF
 document is a photograph of the interior.  I compared that photo to a
 similar photo in my low-band Mocom-70 manual, and they appear to be
 identical.  While there may be minor circuitry differences to satisfy
 regulatory requirements of Brazil, the radio in question appears to be a
 Mocom-70.

Thanks Eric, now I have a path to follow :o)

Greetz from Brazil
Alexandre - PU1BZZ


[Repeater-Builder] Unknow Radio - Anyone can help?

2008-08-01 Thread Alexandre Souza

Just uploaded the cover of a brazilian motorola radio to the files area:


http://groups.yahoo.com/group/Repeater-Builder/files/unitel_p3_450-470mhz-00.gif

Can anyone help me to identify this radio? I'm most sure this is an 
american radio with the made in Brazil sticker :o)

Thanks
Alexandre Souza
(I'll build a repeater...I'll build a repeater...I'll...) 



[Repeater-Builder] Hard times, hard place (or: Building a small repeater in Brazil)

2008-07-27 Thread Alexandre Souza

Hi you all, here PU1BZZ Alexandre, from Brazil

Ok, The repeater builder is a great site (and a BIG thanks for all 
involved, I donated and encourage all to donate at least a dollar. If all of 
us donate 10 dollars/month to the sites who help us, what a great net this 
would be, what is 10 dollars in your monthly income?). But I have some 
special needs I haven't seen in repeater builder, so I came to ask you:

How to build a small group repeater in a very tight budget?

I'll try to explain Brazil to the ones who doesn't know it: We cannot 
afford to import duplexers. The raw material to build it is expensive and 
hard to come by. Also, hardlines are a no-no-buy here. Forget connectors to 
be used in hardlines. So, how does we build a repeater?

We have a small repeater of our local amateur group. This is a radio 
(yes, ONE radio) with TX and RX stages separated, two antenna outputs, one 
mast, one antenna on top (RX) and one antenna on the middle of the mast 
(TX). No grounding, no duplexer, no special measures. Of course, this is way 
beyond what I can do, but I need to know better what to do. So I have some 
questions, and these questions could become a tutorial on repeater builder: 
How to build a thigh-budget-repeater

- What is the vertical (or / and horizontal) separations of the 
antennas? How can I determine the separations, with the sensibility of my 
reciver and the power output of my transmitter?

- In a tower (we got a 6-meters tower to be installed on repeater site 
soon), how is the RIGHT way to ground it? I have a franklin lightining 
arrestor. Should I put it on top or on the side of the tower? If it goes on 
top, where do I put my antenna(s)?

- Having a tx and a rx one near another, I'll have enough RF leakage to 
have desense on RX?

- How can I determine the coverage of the repeater? Is there a SAFE 
computacional way to do that, or will I need to take my car and taking 
measurements around the 'peater perimeter?

- Any homebrew methods to make a repeater SAFE from lightning? A pair of 
gilettes, one connected to the coaxial hot wire and another to the ground is 
said to work, but what are the collateral effects? Will it cause arcing from 
the TX to ground?

- Any tips I should follow?

Of course, you don't need to say a duplexer would be better, use 
poly*, have a better budget, buy better radios and like. I do know all 
of that, but we DON'T have a way to buy a duplexer, poly* and better radios 
:o)

Thanks a lot,
Alexandre
PU1BZZ
(and yes, I take lemonnade from a rock, that is the way things works in 
Brazil :o)) 



Re: [Repeater-Builder] Duplexer cables

2008-07-25 Thread Alexandre Souza
 (It's easier to see this than to describe it in e-mail.  Maybe someone
 will send some screen-shots of what it looks like someday... I've tried
 taking photos of my IFR 1500 with my cheap digital camera (4MP
 point-and-shoot Nikon) and it just doesn't look right.

Each message I read makes me more sure I have lots and lots yet to learn 
before I think I understand duplexers :o) And this is something I NEED to 
learn. Duplexers are almost impossible to be bought in Brazil. I need to 
learn how to make them, and how to tune them :oP

Ah, United States, Why I wasn't born there?!

Greetings from a sunny Brazil
Alexandre - PU1BZZ 



Re: [Repeater-Builder] Duplexer cables

2008-07-21 Thread Alexandre Souza
 For RG214 which has a velocity factor of 0.66 at 147 the cables would be 
 about 13.25 inches.  Now the type of connectors can influence this in that 
 the connector type might lengthen the cable.  N-connectors protude beyond 
 the cable where PL259s do not.

Now there is an intersting question from a kind of newbie: Connectors 
crimped/solded, where does you measure the total lenght of the set (cable + 
connectors)? On the base? Middle? where? 



[Repeater-Builder] FT-5200 parts

2008-07-21 Thread Alexandre Souza

Dear sirs,

Got a FT5200 with lots of defects. I fixed everything but the 440 RX. To 
make it a useable radio, I need the following parts:

- Encoder from front panel - Got it already without the encoder
- Knob of the same encoder
- Complete plastic box of the detachable front - I can somehow fix the 
front part, but the back which connects to the radio is in very bad shape
- The small part with the 6 contact fingers who sits on the radio (not 
the detachable front)

Of course, a new motherboard or a complete radio without the power 
module would also help.

Help a third worlder save an otherwise totalled radio ;o)

Greetings from Brazil
PU1BZZ - Alexandre 



Re: [Repeater-Builder] FT-5200 parts

2008-07-21 Thread Alexandre Souza

Update: 144 and 440 MHz working like a charm! Now I just need plastic 
parts and a encoder to make it like new :o)


Dear sirs,

Got a FT5200 with lots of defects. I fixed everything but the 440 RX. 
 To
 make it a useable radio, I need the following parts:

- Encoder from front panel - Got it already without the encoder
- Knob of the same encoder
- Complete plastic box of the detachable front - I can somehow fix 
 the
 front part, but the back which connects to the radio is in very bad shape
- The small part with the 6 contact fingers who sits on the radio (not
 the detachable front)

Of course, a new motherboard or a complete radio without the power
 module would also help.

Help a third worlder save an otherwise totalled radio ;o)

Greetings from Brazil
PU1BZZ - Alexandre


 



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Re: [Repeater-Builder] Re: software repeater controller

2008-06-19 Thread Alexandre Souza
two words come to mind when recalling the VIC's
'syntax error'AAAHH !

Mine is fried...I need a parts donor, the PLA went south :(



Re: [Repeater-Builder] Re: software repeater controller

2008-06-18 Thread Alexandre Souza
 For multiple audio ports these days I'd recommend using USB audio
 devices.  ISA slots are way gone and PCI slots aren't far behind. For
 an embedded PC controlling radios 24/7 you want something small, quiet
 and low power, most form factors that fit that description usually
 have few if any PCI slots.

A PC controlling a repeater?!?!?! What is the problem of using a small 
microcontroller, with some BASIC programming???

You are using a cannon to kill a microbe he he he



Re: [Repeater-Builder] Re: software repeater controller

2008-06-18 Thread Alexandre Souza
 Not at all. Using a PC to control a repeater as complex as the system
 here with remotes etc. is a perfectly logical choice and allows
 nearly unlimited flexability.
 The original controller on the system here back in the mid 1980s was
 a Commodore VIC-20 :). Any young'ens remember those?

A Vic-20 is wyy safer and more stable than a PC. I'd not 
trust my repeater to a PC. Of course, I have a extense background in 
microcontrollers. I do hope the one creating this controller make it safe :P

Greetings from Brazil
Pu1BZZ
Alexandre



Re: [Repeater-Builder] Re: Wanted to buy: Panasonic CF-25 laptop or equivalent for radio programming

2008-06-18 Thread Alexandre Souza
 Sorry - I should have mentioned that I plug the USB drive
 adapter into my desktop computer, which runs XP Pro.  The
 Laptop isn't going to be operational without a hard drive, is it?

Hard Drives? I use it no more on portable dos and like machines :D A 
CF card with a $3 adapter and I'm done! :oD 



Re: [Repeater-Builder] Wanted to buy: Panasonic CF-25 laptop or equivalent for radio programmming

2008-06-12 Thread Alexandre Souza
  Subject says it all.  Thought I had one lined up but the
  seller flaked.  Need a CF-25 Toughbook or equivalent to program my
  MT-1000 and Spectras.

Does it NEED to be a toughbook? I got nice results with DOS programs and 
the HP 1000CX (a trimmed-down version of the HP200LX). Why not try anything 
that runs DOS?



Re: [Repeater-Builder] mice at repeater sights

2008-05-23 Thread Alexandre Souza
 Anyone have some advice on getting rid of the little bastards and
 keeping them away?

Brazilian recipe: Mix something tasteful (in Brazil we use Fubá which 
is a kind of flour made of corn) with cement. Lots of fubá, and some 20-30% 
of cement. They will eat and the cement will petrify on their stomachs :o) 
They love it O:o) 



Re: [Repeater-Builder] Re: Sunday at Dayton - Part Deux

2008-05-22 Thread Alexandre Souza
There have been a number of items on e-bay I did not bid on just because
of the shipping.  From Canada is one...the shipping from there to US is
much more than from US to US.  Once I was looking at a radio that had

I remember my Bird 43. Paid $130 on it with shipping to USA. Paid $53 in
shipping from USA to Brazil. Almost half the price of the item. But what can
I do? The bird here costs around $600-800... :o(

There should be an EXTREMELY CHEAP way of shipping. Cheaper than surface
:o)

Greetz
Alexandre
PU1BZZ 



Re: [Repeater-Builder] Sunday at Dayton

2008-05-18 Thread Alexandre Souza
Great review. Sounds like a great time. Wish I had gone. I had heard crowds 
where good. Maybe better than last year, comments?

Why things like that doesn't happens on Brazil? ;o)



[Repeater-Builder] Home-made ressonant cavities?

2008-05-15 Thread Alexandre Souza

Anyone into homemade ressonant cavities? These are hellish expensive in 
Brazil, I'd like to give a try on building one. Anyone experienced? Tips you 
want to share?

Thanks
Alexandre Souza
PU1BZZ 



Re: [Repeater-Builder] Home-made ressonant cavities?

2008-05-15 Thread Alexandre Souza
 EBAY is a great place to start.

Transport something as big as a duplexer to Brazil and fight the 
customs? Nah...better build it here, it cannot be so esoteric that I cannot 
build here :o)



Re: [Repeater-Builder] SAV-15 full data sheet

2008-05-09 Thread Alexandre Souza
I have a need to throttle down the RF module to properly drive a new
 post PA.  I have not been able to find a data sheet on the SAV-15 to
 determine the range of control for power output.  Anyone got that info?

If I'm not mistaken, you can find it on repeater-builder site. 


Re: [Repeater-Builder] Re: Bad adapter

2008-04-23 Thread Alexandre Souza
 I have that on my site:
 http://www.tabajara-labs.com.br/eletronica/gambiarras/
 Send me the photos and I'll put there :o)
 I just got back from a visit to the 'Gambiarras where I fell out of
 my chair laffing so hard... LOL is putting it TOO mildly

Take a look around, there are other great photos scattered over the 
site. I think the best one is the screw fuse :o) 



Re: Re: [Repeater-Builder] More on Copper theft

2008-04-23 Thread Alexandre Souza
 My problem is most of the people that trespass onto my property is kids 
 from
 the mid to lower class housing development to the West of my property. 
 Even
 if you're justified in shooting a kid you will be condemned in the press 
 and
 harassed by the law enforcement officers.

Short answer: Make friends.

It is unbelievable how good friends can help. If you have a good living 
and live in a pouch of powertry, you can always help a bit people around 
you. You'll improve your life, their lives and save your equipment. Because 
even the drug-heads around them will help to protect your property. They 
will saye don't mess with Paul's things. He is our friend and always 
willing to help when we need!. Been there, done that. 






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Re: [Repeater-Builder] Re: Bad adapter

2008-04-22 Thread Alexandre Souza
 p.s: I've run across several other technology-groups who like to post
 'Wall of Shame' pix - got a few myself.  Any interest out there?

I have that on my site: 
http://www.tabajara-labs.com.br/eletronica/gambiarras/

Send me the photos and I'll put there :o)


Re: [Repeater-Builder] Re: Bad adapter

2008-04-21 Thread Alexandre Souza
I was really glad I had a new camera from eBay with me for testing.
 It was unusual that I had it along but I think I should change that
 and make it a habit to bring one on service calls in the future.

Cameras are so cheap nowadays you can always have a disposable 
2mpixels camera on your pocket :o) 



Re: [Repeater-Builder] Re: Yahoo burp?

2008-04-21 Thread Alexandre Souza
Yahoo is ' the ' worst email and forums based group on the planet.

Americans says there is no such thing as a free lunch. You get what 
you pay for :o)

Greetings from Brazil
Alexandre - PU1BZZ

PS: When you take something for free, for a lot of time, people always 
thinks it is mandatory.