Hi,
It is many different similar instruments, SPM-3, SPM-6...etc,
don't really see a reason to pick the most expensive type,
as any has a bandwidth of 2.5kHz or lower, and as such will
work satisfactorily for most calibrations.
It is of course an advantage to switch between 20Hz and 2kHz bandwidth, but
the instrument you pick doesn't need to cover far above 136kHz
Have documents for many different Pegelmesser/Selective Level Meters made by
Siemens and Wandel&Goltermann, some is donated to NRHF (www.nrhf.no)
Some older instruments uses valves, but usually it is not many different, use
of C3m or CCa (E88CC) throughout the instrument is quite common, also few other
types
73
Jan-Martin
LA8AK
http://www.laud.no/la6nca/la8ak/
-----Opprinnelig melding-----
Fra: WE0H [mailto:[email protected]]
Sendt: 8. oktober 2002 01:33
Til: [email protected]
Emne: LF: RE: SPM14?
Other than what you said??? It is a receiver. Hi Hi. Sorry, I don't know
this Level meter.
Mike>WE0H
http://www.we0h.us/lf.html
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Tracey Gardner
Sent: Monday, October 07, 2002 4:05 PM
To: [email protected]
Subject: LF: SPM14?
Can anyone tell me anything about the SPM14, other than the fact that it
covers 10kHz to 100MHz, please?
Tracey
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