RadioBanter

RadioBanter (https://www.radiobanter.com/)
-   Homebrew (https://www.radiobanter.com/homebrew/)
-   -   radio receiver "alignment" (https://www.radiobanter.com/homebrew/22658-re-radio-receiver-%22alignment%22.html)

Paul Burridge March 23rd 04 04:39 PM

radio receiver "alignment"
 
On Tue, 23 Mar 2004 14:25:14 GMT, John Hall
wrote:

I remember years ago my dad's friend had been fiddling with his radio
because it didn't work right, he "found some screws loose in those
little cans, so tightened them all down". Strangely, that didn't
improve things.


:-)
It's the first thing a lot of folks seem to do when they get the back
off a radio, isn't it?

--

The BBC: Licensed at public expense to spread lies.

Paul Burridge March 23rd 04 04:39 PM

On Tue, 23 Mar 2004 14:25:14 GMT, John Hall
wrote:

I remember years ago my dad's friend had been fiddling with his radio
because it didn't work right, he "found some screws loose in those
little cans, so tightened them all down". Strangely, that didn't
improve things.


:-)
It's the first thing a lot of folks seem to do when they get the back
off a radio, isn't it?

--

The BBC: Licensed at public expense to spread lies.

Paul Burridge March 23rd 04 04:39 PM

On Tue, 23 Mar 2004 12:29:26 GMT, (John Crighton)
wrote:

I am the type that likes to use test equipment as laid
down by the alignment instructions in the book. My
workmate always achieved better results than me.
He would say to me "Can't you hear that the tone
just doesn't sound right?" I couldn't hear what
he was on about. So we used to have a good laugh
about my bench having signal generators to cover
455KHz, 10.7 Mhz and the desired UHF channel.
Oscilloscope, noise and distortion meter,
frequency meter and dummy load/power meter,
modulation meter. If there was a spectrum analyser
available I would have a play with that too.
I just liked playing with the gear. My work mate got
far more two-way radios fixed and out the door than
I ever did. He was good. He had the ear for it and
magic hands.


Hi John,

Some people just seem to have an almost supernatural ability to do
this with virtually no technical knowledge. I can't begin to tell you
the extraordinary feats I've seen done IRO radio mods and tweaks by
people who shouldn't, by any reasonable measure, have had an earthly
clue about what they were doing!
--

The BBC: Licensed at public expense to spread lies.

Paul Burridge March 23rd 04 04:39 PM

On Tue, 23 Mar 2004 12:29:26 GMT, (John Crighton)
wrote:

I am the type that likes to use test equipment as laid
down by the alignment instructions in the book. My
workmate always achieved better results than me.
He would say to me "Can't you hear that the tone
just doesn't sound right?" I couldn't hear what
he was on about. So we used to have a good laugh
about my bench having signal generators to cover
455KHz, 10.7 Mhz and the desired UHF channel.
Oscilloscope, noise and distortion meter,
frequency meter and dummy load/power meter,
modulation meter. If there was a spectrum analyser
available I would have a play with that too.
I just liked playing with the gear. My work mate got
far more two-way radios fixed and out the door than
I ever did. He was good. He had the ear for it and
magic hands.


Hi John,

Some people just seem to have an almost supernatural ability to do
this with virtually no technical knowledge. I can't begin to tell you
the extraordinary feats I've seen done IRO radio mods and tweaks by
people who shouldn't, by any reasonable measure, have had an earthly
clue about what they were doing!
--

The BBC: Licensed at public expense to spread lies.

Lou March 23rd 04 07:13 PM


"Paul Burridge" wrote in message
...
On Tue, 23 Mar 2004 12:29:26 GMT, (John Crighton)
wrote:

I am the type that likes to use test equipment as laid
down by the alignment instructions in the book. My
workmate always achieved better results than me.
He would say to me "Can't you hear that the tone
just doesn't sound right?" I couldn't hear what
he was on about. So we used to have a good laugh
about my bench having signal generators to cover
455KHz, 10.7 Mhz and the desired UHF channel.
Oscilloscope, noise and distortion meter,
frequency meter and dummy load/power meter,
modulation meter. If there was a spectrum analyser
available I would have a play with that too.
I just liked playing with the gear. My work mate got
far more two-way radios fixed and out the door than
I ever did. He was good. He had the ear for it and
magic hands.


Hi John,

Some people just seem to have an almost supernatural ability to do
this with virtually no technical knowledge. I can't begin to tell you
the extraordinary feats I've seen done IRO radio mods and tweaks by
people who shouldn't, by any reasonable measure, have had an earthly
clue about what they were doing!
--

The BBC: Licensed at public expense to spread lies.


I have a bench full of equipment and use it only to get me out of the dark,
if no signal at all. Once I get past that, I use my own ears. I get far
better audio.
Instruments just don't cut it for "listening" audio. Lou



Lou March 23rd 04 07:13 PM


"Paul Burridge" wrote in message
...
On Tue, 23 Mar 2004 12:29:26 GMT, (John Crighton)
wrote:

I am the type that likes to use test equipment as laid
down by the alignment instructions in the book. My
workmate always achieved better results than me.
He would say to me "Can't you hear that the tone
just doesn't sound right?" I couldn't hear what
he was on about. So we used to have a good laugh
about my bench having signal generators to cover
455KHz, 10.7 Mhz and the desired UHF channel.
Oscilloscope, noise and distortion meter,
frequency meter and dummy load/power meter,
modulation meter. If there was a spectrum analyser
available I would have a play with that too.
I just liked playing with the gear. My work mate got
far more two-way radios fixed and out the door than
I ever did. He was good. He had the ear for it and
magic hands.


Hi John,

Some people just seem to have an almost supernatural ability to do
this with virtually no technical knowledge. I can't begin to tell you
the extraordinary feats I've seen done IRO radio mods and tweaks by
people who shouldn't, by any reasonable measure, have had an earthly
clue about what they were doing!
--

The BBC: Licensed at public expense to spread lies.


I have a bench full of equipment and use it only to get me out of the dark,
if no signal at all. Once I get past that, I use my own ears. I get far
better audio.
Instruments just don't cut it for "listening" audio. Lou



art March 23rd 04 07:22 PM

That's nothing. I got a better story..

Dad bought a pair of walkie talkies back in 1964 when I was 5 yr old,
I found the soldering iron (always watched him fix the tv sets for people)

and removed every part on the pc board from one of the wt !

When he got home, I thought he would whip my butt but instead
he gave me a big pat on the head and was proud of my work !

art





On Tue, 23 Mar 2004 14:25:14 GMT, John Hall
wrote:

I remember years ago my dad's friend had been fiddling with his radio
because it didn't work right, he "found some screws loose in those
little cans, so tightened them all down". Strangely, that didn't
improve things.


:-)
It's the first thing a lot of folks seem to do when they get the back
off a radio, isn't it?



art March 23rd 04 07:22 PM

That's nothing. I got a better story..

Dad bought a pair of walkie talkies back in 1964 when I was 5 yr old,
I found the soldering iron (always watched him fix the tv sets for people)

and removed every part on the pc board from one of the wt !

When he got home, I thought he would whip my butt but instead
he gave me a big pat on the head and was proud of my work !

art





On Tue, 23 Mar 2004 14:25:14 GMT, John Hall
wrote:

I remember years ago my dad's friend had been fiddling with his radio
because it didn't work right, he "found some screws loose in those
little cans, so tightened them all down". Strangely, that didn't
improve things.


:-)
It's the first thing a lot of folks seem to do when they get the back
off a radio, isn't it?



Paul Burridge March 23rd 04 08:22 PM

On Tue, 23 Mar 2004 14:13:35 -0500, "Lou"
wrote:

I have a bench full of equipment and use it only to get me out of the dark,
if no signal at all. Once I get past that, I use my own ears. I get far
better audio.
Instruments just don't cut it for "listening" audio. Lou


A aging G3 friend of mine would agree with you here. He seldom resorts
to anything more than a DVM and a capacitance bridge to carry out
quite difficult repairs. I, OTOH, am totally stuffed without a full
schematic, my 'scope, signal generator, frequency counter, spectrum
analyser and just about anything else you can think of. I once knew a
totally blind guy from Hastings who repaired radios without *any* test
equipment or schematics, seemingly by 'feeling his way around' the
circuit board and listening for appropriate responses. No way I could
ever do that: incredible. And I've met many others who have similar
abilities, too, over the years.
--

The BBC: Licensed at public expense to spread lies.

Paul Burridge March 23rd 04 08:22 PM

On Tue, 23 Mar 2004 14:13:35 -0500, "Lou"
wrote:

I have a bench full of equipment and use it only to get me out of the dark,
if no signal at all. Once I get past that, I use my own ears. I get far
better audio.
Instruments just don't cut it for "listening" audio. Lou


A aging G3 friend of mine would agree with you here. He seldom resorts
to anything more than a DVM and a capacitance bridge to carry out
quite difficult repairs. I, OTOH, am totally stuffed without a full
schematic, my 'scope, signal generator, frequency counter, spectrum
analyser and just about anything else you can think of. I once knew a
totally blind guy from Hastings who repaired radios without *any* test
equipment or schematics, seemingly by 'feeling his way around' the
circuit board and listening for appropriate responses. No way I could
ever do that: incredible. And I've met many others who have similar
abilities, too, over the years.
--

The BBC: Licensed at public expense to spread lies.


All times are GMT +1. The time now is 04:24 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com