Heathkit SA-2060, SA-2060A calibration

Calibration Procedure for the
Heathkit Antenna Tuner
SA-2060 and SA2060A
Prepared by: Derf Mockford G8ZGK 17 November 2007
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Manufacturer: Heathkit
Models: SA-2060, SA-2060A
SPECIFICATIONS:
Frequency Range: Continuous 1.8-30 MHz
Input Power Capability: SSB-2000 watts (peak) CW-1000 watts
Input Impedance: 50ohms
Output Impedance: Wide Range, Coax, Long wire and,
Balanced to Unbalanced Transformation: 4:1 balun
Meter Functions: Forward average power
FWD Meter: (2 ranges): Low 0-200 watts High: 0-2000 watts
Reflected average power REF Meter: (2 ranges): Low 0-50 watts High: 0-500 watts
Standing Wave Ratio REF Meter: (1 range): SWR 1:1 to 3:1
Size (WDH) 14-1/2" x 13-7/8" x 5-3/4" (368 x 352 x 146 mm)
Weight 15-1/2 lbs
SA-2060 / SA-2060A Differences
1. The 2060A has knobs to match those on the SA1000 linear amplifier. The 2060 does not.
2. The 2060A fully disconnects the coax output when switching to long wire or balanced line.
On the 2060 the switching arrangement keeps both coax and wire switched together. This can necessitate manual connection/disconnection of feeders on the rear panel.
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CALIBRATION - EQUIPMENT
1. HF transmitter, 2000 watts CW output into 50 ohms at 2 to 29 MHZ.
Reasonable calibration can be achieved with any CW transmitter of 100 watts or more. 400 watts CW performance is better.
2. 50 ohm dummy load. This should have an ICAS (Intermittent Commercial, Amateur Service) power rating that is suitable to adsorb the HF transmitter power.
3. A calibrated wattmeter. This may be a 'Thruline' device or one that is built into the dummy load.
Note: The calibration of the meters in the SA-2060 relies on the calibration of this wattmeter. If you do not have a calibrated wattmeter then beg, borrow or loan one for a few hours.
SA-2060 SA-2060A
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