Alberto,
many thanks but I need just to calibrate (I should say invent) a
S-Meter for a BITX20a QRP Radio, and possibly double check the
sensitivity in some very relaxed way. My equipment:
- MiniVNA Pro with a 2 signal generators from approximately 0 to -60dBm
(not clear if they have an
On 1/8/2014 11:13 PM, Alan Melia wrote:
/Hi Alberto it is quite interesting to continue that test with no attenuator
but the shells of the coax plugs connected together. I would guess with the
gear you have the resultant would be at least 120dB downbut this is
not the case for all
On 1/6/2014 2:13 PM, Giuseppe Marullo wrote:
/I would like to know the specs for this attenuator, especially the
maximum frequency, if any good folk has a ballpark idea...
I was not able to locate any info about it./
I too have one, bought cheaply a couple of years ago on eBay. I tested its
Subject: Re: [time-nuts] OT - Old Hatfield 2105 Step attenuator specs
On 1/6/2014 2:13 PM, Giuseppe Marullo wrote:
/I would like to know the specs for this attenuator, especially the
maximum frequency, if any good folk has a ballpark idea...
I was not able to locate any info about it./
I too
or something similar.
David
--
Message: 5
Date: Tue, 7 Jan 2014 00:01:35 -
From: Alan Meliaalan.me...@btinternet.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] OT - Old Hatfield 2105 Step attenuator specs
Message-ID
David and all,
following my post I was directly contacted by Peter (G4BCH) from Pascall
that kindly forwarded to me the datasheet of the Dinosaur.
Should anyone need it, just contact me off list.
Giuseppi, with any old attenuator its worth a DC resistance check to
see if one of the
Hello to all,
and Happy New Year.
I would like to know the specs for this attenuator, especially the
maximum frequency, if any good folk has a ballpark idea...
I was not able to locate any info about it.
Thanks in advance.
Giuseppe Marullo
IW2JWW
, They are usable
to 200MHz with reduced accuracy.
Alan
G3NYK.
- Original Message -
From: Giuseppe Marullo giuse...@marullo.it
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Monday, January 06, 2014 1:13 PM
Subject: [time-nuts] OT - Old Hatfield 2105 Step
Alan,
thank you for your answer.
. If you are refering to the units in blue crackle diecast case with
miniature toggle
Sort of, but mine is orange:
http://thumbs3.ebaystatic.com/d/l225/m/mkbCnoRgl8RNnxvJdy9phAw.jpg
Seems pretty close, I was hoping for some better figure but I plan to
use it
PM
Subject: Re: [time-nuts] OT - Old Hatfield 2105 Step attenuator specs
Alan,
thank you for your answer.
. If you are refering to the units in blue crackle diecast case with
miniature toggle
Sort of, but mine is orange:
http://thumbs3.ebaystatic.com/d/l225/m/mkbCnoRgl8RNnxvJdy9phAw.jpg
Seems
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