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Old 10th Jun 2021, 10:04 pm   #3
Cruisin Marine
Heptode
 
Join Date: Jul 2018
Location: Worthing, West Sussex, UK.
Posts: 983
Default Re: Marconi TF2603 RF mV meter cal 6dB or not 6 dB

Hi Jeremy,
Thanks for the reply.
It is a Marconi 2019 50 ohm genny, it can only be set in EMF mode. It is directly terminated in to the 50 ohm RF millivoltmeter via the supplied N to probe adaptor.
Your comments agree with my thoughts on this one, but for one thing- I know the Racal RF Millivoltmeters (9301) agree with the level on the 2019, this Marconi does not, it reads 6dB less, hence my confusion.
THE problem is that the Marconi TF2603 manual doesn't specify whether it is reading from a PD or EMF genny for calibration purposes, not the first time I have encountered this.

I really need to hear from another TF2603 user to see what they have experienced, otherwise I am on a wild Goose chase.
It works fine otherwise, so I am happy.

Last edited by Cruisin Marine; 10th Jun 2021 at 10:14 pm.
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