Author Topic: if you are a beginner...  (Read 5290 times)

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Offline tggzzz

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Re: if you are a beginner...
« Reply #25 on: October 25, 2017, 08:44:46 am »
Incidentally I built a 2m receiver with a counter and a DMM and an RF probe. Total gear cost was about £30.

But you couldn't do that for a 2m transmitter!

No I’d use an absorption wavemeter too :)

You can get away with some proper rancid old cack if you understand it to some degree. My father was a ham in the 1950s and he used a home brew voltmeter and GDO and that was it. Clearly standards have to be better than that now but do we need them to be £1000+ better?

Very true; see the aphorism in my .sig :)
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 

Offline vallywally5Topic starter

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Re: if you are a beginner...
« Reply #26 on: October 25, 2017, 10:23:36 am »
 

 hello again,

in my shack I have :  kenwood  ts-950sd and ts 780a

I like if posible a list with oscilloscopes for using in hf (30mhz) {I know the difference analog/digital }

A simple list s'il vous plait , not fights, peace not blood .

Tkank's again all of you .
 

Offline bd139

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Re: if you are a beginner...
« Reply #27 on: October 25, 2017, 10:53:33 am »
If you're HF and RF only you're mainly interested in periodic signals so any 100MHz scope will do the job. That will allow you to see some distortion without costing too much. Rigol DS1054Z if you want a new one. Any Tektronix analogue scope that works (4x5 series, 22xx, 24xx, 26xx series) which is second hand and tested working with at least 100MHz bandwidth is good too.

You don't need a lot. The digital scopes mainly come into use in non-repetitive and slow signals which there aren't a lot of in RF work.

Very true; see the aphorism in my .sig :)

Didn't see that - I agree!

(well the half of me that doesn't have TEA does :) )
« Last Edit: October 25, 2017, 10:57:27 am by bd139 »
 

Offline vallywally5Topic starter

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Re: if you are a beginner...
« Reply #28 on: October 25, 2017, 12:05:42 pm »


  merci beaucoup  first bd 139 and than all of you .
 

Offline vallywally5Topic starter

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Re: if you are a beginner...
« Reply #29 on: February 12, 2019, 02:16:17 pm »

Thnk you for your interest/replay.
I bought an oscilloscope Lecroy 9430.Need help about a manual I find  only a remote control manual  but not a user manual. Please help.
Thanks.
 

Offline vallywally5Topic starter

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Re: if you are a beginner...
« Reply #30 on: February 13, 2019, 10:45:34 am »
 Nope, I want User Manual, not Remote Control Manual !
 


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