Hi Alberto the filter is a 100Hz wide filter which should be ok for CW. It
sounds as though your unit has a problem. Do you have a manual and circuit
?? I can send you a PDF file if you need it as an attachment to a direct
e-mail. The main problem that most have found is that the IF is 1500Hz so
the note is rather high. There are a number of ways of converting that down
including some soundcard software by Alberto of ARGO fame.
73 de ALan G3NYK
[email protected]
----- Original Message -----
From: "Alberto Riomao" <[email protected]>
To: <[email protected]>
Sent: 26 April 2005 21:03
Subject: LF: WG - selective level meter SPM-3
Hello all,
I bought a very old and used Wandel & Goltermann - selective level meter
SPM-3 (selektiver pegelmesser 2~612KHz), but I think the filter is too
narrow, because I tune it in some airport beacons and I can not listen the
CW, only a high frequency noise.
Does anyone know any modifications for this equipment? (I only found
filter
mods to other brands...)
Thank you,
Alberto Riomao - PY2ZL
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