Heathkit GR-78 - Page 24

PERATION
attempting to use the Receiver, carefully read the
‘ed rar pane! explanations to lary the functions of
Jo the contol, witches, ed connectors.
to Figure 8 (fold. aut rom Page 86) an the following
tion for dexription of eonvol and switch
GAIN—Tura the Reesver on or OFF, Varies the
‘of the sound fom the spade or headphones by
ng the amount of audio amplifier gain
GAIN-Varies the loudne of the sound trom the
‘¢ headphones by controlling the amount of RF
er gun. NOTE: It ay be daiable to et his contrat
{ull counterclockwise on strong SB sit for best
Normally it wil be stator naa fl clack
V/SS8-Selects th following typa of rcaption: AM
tude modulation), S88 (single sideband) or CW
1 wave
Selects one of ix frequen band: A, B,C, oF
IN TUNING—Tunes the Recsiver tothe dered station,
‘i normaly lettin fully CCW postion whe not io
inc it aects the main dal ealiratin, To use the
[BANDSPREAD, set the MAIN TUNING dla ¥0
FRONT AND REAR PANEL
CONTROLS
AND
SWITCHES
fone of the frequencies shown on the right side of the
tandigroad veal. Now tune with the Bandsread for
expanded frequency coverage twill dom be racer 10
use thi control on Bands A and 8,
AVCIMVC--Automatic Volume Control. The AVC ckeut
‘utomatialy adjrs the volume level to compenaite for
‘changes i sigaltrength tao reduces the atect of
"bli when asrong na tun in. Leave this teh
Inthe AVC poxition except when listening to very weak
stations nd then the MVC postion shoud be we, Thi wl.
silow manual volume conto of the RF stag. Distortion
Wil occur, however, if strong station i reaved when the
[AF Galo contr i fully clock
ANLOFF—Automatic Noi Limiter, Limit state and
|grition nose when nthe ANL poston Tue thi teh to
AANL only when ote liter action dee. When
‘rong signal tunedin urn the switch 19 OFF to prevent
datorton.
CV/STBY=This
switch
has two
postions;
RCV
(eceie)
‘and
STBY
(sareby).
For
normal
Receiver
operation,
ua
‘the
REV
position.
To
keep
the
Recivr
res
for
iatant
se,
itch
to
the
STBY
position,
TUNING METER-Provides meta Indieation for pri
sia tuning, AVEMVC: awitch ust be set to the AV
Poston to llw this mateo be aed, Fr maxims mater
‘election the RE GAIN must be in the full elockwise
elton,