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Mode! 5344S
Operation and Programming
Table 3-6. ERROR Messages (Continued)
Err 10,
System controller switch not set to SYS CONT for AUTO LOCK. (ADDRESS switch on rear
panel.)
Solution:
Set switch to SYS. CONT.
Use Manual Lock.
Err
11.
Signal source cannot be tuned close enough via HP-IB.
a.
Signal source HP-IB port not connected to 5344A.
b.
5344A HP-IB address switch not set to address of signal source.
c.
Signal source is not HP 8620C or HP 8350A.
d.
Desired frequency is not within range of installed plug-in.
e.
8620C has plug-in installed that is not supported for Auto Lock, (86210A, 86220A, 8621A/B).
Err 12.
AUTO LOCK cannot be achieved.
a.
AUTO LOCK attempted in LOCK/ROLL mode with 8620A/B/C sweeper.
Solution:
Use Manual Lock.
b.
HP-IB address of sweeper and 5344A are not the same.
Err
13.
Checksum error in power-up ROM test. Bad ROM number {U1, U4, U6, U8) also
displayed.
Err 14.
RAM failure during power-up self-test.
Err 15.
Actual locking frequency out of range (500 MHz to 18 GHz for 5342A, or 500 MHz
to 26.5 GHz for 5343A) in Subharmonic or Offset Locking mode.
3-121.
End-of-Sweep (EOS) Message
3-122.
The 5344A will display -—EOS— when LOCK mode is entered or RESET is pressed, while
waiting for the present sweep to be completed so that a locking sequence may be started. EOS is also
displayed when the 5344S has triggered a sweep and is waiting for the sweeper to respond.
3-123.
There are several possible causes for the EOS message to remain on the display of the 5344A:
a.
The sweeper is set for long sweep times, and the present sweep has not yet been completed.
b.
The SWEEP IN of the 5344A is not connected to the sweep ramp of the source.
c.
The sweeper is not sweeping.
d.
The sweeper's RF output is turned off for any length of time.
e.
The sweeper is tuned out of the capture range of the 5344S.
f:
The SWEEP TRIGGER out of the 5344S is not connected to the source.
3-124.
SIGNAL SOURCE REQUIREMENTS
3-125.
Signal sources to be used with 5344S must meet the following specifications:
1.
Frequency and output power which meet the 5344S specifications of
Table 1-1.
2.
An FM port with a sensitivity between 1 and 50 MHz/volt and bandwidth of dc to at least 2
MHz in wideband mode, or dc to at least 200 KHz in narrowband mode. If the input
impedance of the FM port is less than 5 Kohms, the sensitivity will be reduced by the output
impedance of the 5344S FM OUT signal (250 ohms). The minimum sensitivity must then be
(Rin + 250)/Rm MHz/Volt, with Rin in ohms. The FM input bandwidth must also meet the
minimum values with this 250 ohms in series with it. This is significant only if the input
capacitance is large.
3-26
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