90PF Slot Card
Section 1
Dual Channel Programmable
Front Panel Operation
Filter/Amplifier Card
4
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•
Web Address: http://www.freqdev.com
11. CHAN CFG
– For slot cards that have a high-pass
filter in channel 1 and a low-pass filter in channel 2,
Channel Configuration (CHAN CFG) allows each
channel to operate independently (DUAL) or to
operate in a band-pass or band-reject mode.
DUAL
Utilize each channel independently
*B-PASS
Band Pass Operation
*B-REJECT
Band Reject (Notch) Operation
*Band Pass (B-PASS) and Band Reject (B-REJECT)
can be selected during configuration of channel 1 or
channel 2. The slot card must have a high pass filter
in channel 1 and a low pass filter in channel 2. For
B-
PASS operation
, input signal must be connected to
channel one (1) input BNC and filtered output signal
will exit through channel two (2) output BNC. For
B-
REJECT operation
, input signal must enter through
both channel (1) and channel (2) input BNC’s. Filtered
output signal will exit through channel two (2) output
BNC.
12. CONFIG
– Up to 9 configurations can be saved on
each 90PF slot card. Slot card configuration, in use at
time of power-OFF, will be saved to the next power
ON cycle.
CONFIG
Select
1 thru 9
S
- Save
d
13. REMOTE
– Displays Local reset screen when
external computer has control of the instrument in
remote operation. On power-up, Instrument defaults
to local mode. During a remote session, press ENTR
to return to local mode. An external computer can only
initiate remote mode.
REMOTE
LCL
- Local
ENTR
– RS232 or GPIB
14. LED’s
– Each 90PF contains two clipping sections
per channel, one for the pre-gain output and one for
the post-gain output. These outputs are the inputs into
the clipping circuitry. The inputs pass through a
comparator. When peak voltage is greater than
+10.5V or less than –10.5V,
CLIPPING
occurs and the
red I/O LED’s will light.
