measured_operating

The table below contains the measured meter and drive values while tx's were in use.

Columns/abbreviations:

tx/otx: transmitter number 1..6. otx:other tx on at the same time (only meaningful for sky)
date, S/D : S =sky, D= dummy load
drv dbf: rf drive as db full scale from gui (see calibration plots 151021:gui synth driver)
pwr: KW is kilowatts (computed from rf coupler curves). dbm is the coupler value measured by spectrum analyzer.
RP: reflected power read from meter (before dividing by 10.)

this will trip at 100 (100/10 = 10kw)

FP/RP: foward power/reflected power (as read from the meters)
BB: broad band linear amplifier in watts
tube elements: voltage, current for each tube stage (scrn,cathode only have currents)

V = Volts, A= amps, mA=milliamps

cGrid: control grid. The voltage values are the bias voltages
scrGrid: screen grid.
cath A : cathode..

expected meter values when running at 100KW (from manual)

dates:

151021: tx5 on dummy load
151022: 1,4,5 on sky
151026: tx1-6 on sky no rf
151027: tx3 on dummy load, ipa glitching

Notes:

Expected meter readings at 100KW.

from txManual page 1026 (6-26)
cw mode, midband, 10.54 Mhz, 100KW into dummy load.

Tube element	IPA		DRIVER		PA
	V	I	V	I	V	I
Filament V/A	7.13-7.87	75+/-15	6.0-6.6	160+/-20	14.75-16.25	215+/-20
Filament V/A	7.13-7.87	75+/-15	6.0-6.6	160+/-20	14.75-16.25	215+/-20
ctrlGrid V/mA	-270+/-20	10+/-10	-280+/-20	10+/-10	-380+/-30	50+/-50
screenGrid mA	xx	30+/-5	xx	50+/-30	xx	180+/-100
cathode A	xx	1.8 +/-.2	xx	3.5+/-.6	xx	16.25+/-1.5
broadband amp	70-140Watts

input voltages (from hvps cabinet)

acPwr	208 +/- 6V , 3 phase, 60hz, 10kVa
acPwr	120 +/- 6V , 60Hz, 1kVa
dcPwr	Voltage (kVdc)	Cur (amps)	tube section
	11.4	20	pa Anode
	4.5	6	drv Anode
	3.5	4.0	ipa Anode
	1.5	1.5	pa Scrn
	1.5	.5	drv Scrn
	1.5	.5	ipa Scrn

filament voltages.

**Filament voltages**
tube	range Volts	Damage to tube if < this value (Volts)
ipa	7.13-7.87	6.2
drv	6.0-6.6	5.4
pa	14.75-16.25	14.5

Range and minimum values come from p 6-231 ->
Tubes shall never be operated at voltages lower than:

ipa 4cw10,000b: 6.2V
drv: 4cw25,000b: 5.4 V
pa: 4cw150,000e: 14.5 V
Failure to comply will result in depletion of thorium, the emitting element...
see 6-6.3.10.2 pg 6-232 for adjustment.

Adjusting cathode current with no rf drive: 6-6.3.11 page 6-234:

**Cathode I, no rf CW mode**
tube	Version1 Amps
IPA Ik	1.2 +/- .2
DRV Ik	1.3 +/-.1
PA,Ik	3.5+/-.1

To add more entries: edit and insert (vi) operating_value_template_insert.html at commented insertion point.
pink color is : Value out of specified range

Measured operating values

Columns/abbreviations:

dates: