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Heathkit HW-100 - Ah.1.37.Hw-101-33: ALC Meter Reads below Zero; Ah.1.38.Hw-101-34: S Meter Drift; Ah.1.39.Hw-101-35: Poor if Sensitivity; Ah.1.40.Hw-101-36: Receiver Recovery Slow

Heathkit HW-100
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ah.1.37. HW-101-33: ALC Meter Reads Below Zero
AUGUST 21, 1978
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-33
SEE BULLETIN NO: HW-100-18 DATED AUGUST 21, 1978.
ah.1.38. HW-101-34: S Meter Drift
AUGUST 22, 1978
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-34
SEE BULLETIN NO: HW-100-17 DATED AUGUST 22, 1978.
ah.1.39. HW-101-35: Poor IF Sensitivity
SEPTEMBER 26, 1978
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-35
SEE BULLETIN NO: HW-100-19 DATED SEPTEMBER 26, 1978.
ah.1.40. HW-101-36: Receiver Recovery Slow
OCTOBER 10, 1978
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-36
SEE BULLETIN NO: HW-100-20 DATED OCTOBER 10, 1978.
ah.1.41. HW-101-37: R-940 Shorting To Shield
OCTOBER 11, 1978
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-37
To prevent the leads of R-940 shorting to ground, install a length of sleeving [PN 346-1]
on each lead of R-940.
This will be incorporated in future production.
ah.1.42. HW-101-38: Poor Carrier Suppression
OCTOBER 13, 1978
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-38
The HW-101 carrier suppression specification is -45db or below. If the carrier cannot be
nulled on both USB and LSB to this level, try changing R9 on the modulator board from
a 1K Ohm to a 390 Ohm [PN 1-48].
This change will reduce the injection level to the balanced modulator and hence reduce
the carrier suppression level.
HW-101 Service Bulletins Page 145

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