Promax -4 Manual De Uso página 58

•
There may be certain frequencies where the symbol "<" appears at levels higher
than 20 dBµV (maximum 23 dB). This is due to the automatic correction of the
frequential response. The value measured remains correct, although the accuracy
becomes ±3 dB.
•
When the tuning is carried out by channels, it is possible that the broadcasting
station deviates a few kHz with respect to the channel frequency. If this variation is
higher than 40 kHz, tune again using this time the frequency mode, to obtain a
more correct level reading.
Example 4. Measuring the video carrier level in channel 21 (CCIR standard).
C21
Example 5. Measuring the commercial FM carrier (105.00 MHz)
S01
Channel S01 is nearest to the desired frequency.
+
105.00
Page 16
FREQ +
USER'S MANUAL. PROMAX-4
Novembre 1999