Ten-Tec 708 Instruction Sheet

trNSTRUCTION SHEET
TEN-TEC model 708 and
708A Comnunications Microphone.
GENERAL
TEN-TEC models
708 and 708.4. are
uni-directional dynamic micropbones
designcd for usc
as
a
oommunications station miorophone for Amateur Radio and other translnitting applioations. The
unit
consists
ofa
metal die-aast base
(plastic bottom cover)
widr
3
position PTT switch
wlth
momentary
TX,
OFF, and
LOCK
positions, flexible metal gooseneck, dynamic microphone
elemcnt
and
ball-type
eJement
housing. Thc
element has
tailored frccluency rcsponse
ftom
30
Hz
to
12
kHz
designed
for excellent transmit
a'.rdjo
in
SSB,
AM,
and
FM
modes
Model
708 and 708,4 are
identical. The comection cable is supplied
with
either
a
4-pin (modcl
708) or 8-pin (model 708.4) microphone connector
installed. Model
708 is suitable
fol
use
wltb
4-pin
equrpped
TEN-TEC transceivers models 516
Argooaut V,
535
Argonaut
II,
536 Delta
ll,
560
Corsair,561 Corsair
II,
562
Omni-V,563 Omni-Vl,
56'1
Omni-Vl Plus' 565
Orion'
585
Paragon, 586 Paragon
IL
Modcl 708,4 is suitable
fbr
usc
with
the
TEN-TEC model 566
Orion
I1,
and many Yaesu
HF tansceivers.
TNSTALLATION AND OPERATION
Attach the conncction
cable to thc transceivcr microphone
jack
Momentary PTT operahor is
accomplished by pushing the s$'itch on the
base
ofthe
microphone fonvard
ar'vay
fronr the
operalor
inlo
the
TX position. Hold to
continuc
tansmitting.
Release
to stop. The microphone
can
be locked
'on'
in PTT opcration by
pulling
the switch on the
base
lowarcls the opetator
(marked on
the base as
LOCK).
To release. press
the switch fonvard to
fie
cctrler
position'
The microphone element in the model 708/708A is always
'live'
for
VOX operation
For
VOX
operation on
a
TEN-TEC transceiver, aclivate the VOX circuitry
and then speak into the
microphone. It is not necessary to move
the
PTT slider switch fo
the
TX
or
LOCK
positions'
SPECIFICATIONS
TYPE: Uni-directional dynamic microphone.
FREQUENCY RESPONSE: 30-12000 Hz
SENSITIVITY:
-67 dBV
(0
dBV:
1V/uBar @
I
kHz)
OUTPUT IMPEDANCE:
600 ohms
CASE: Die-cast
base
top. molded pltrstic
base
botlom pancl, llexibLe melal
goosencck,
ball-type
element housing.
FINISH:
BIack,
pairted
DIMENSIONS: Hcight
$ith
gooscneck
firlly
ertendcd.
uaximnur
1'1
lr'2
in. (36
8
crn)' base
2 in
(5 cm) H
x
4
3,14
in.
(t2
cm)
W x 6 lr4 in.
(
15.9 cm) D
WElcIlT: I
lb..
1,1
oz. (850 g).
TllN-TEC. lnc.
1185
Dolly
Parton Parkway
Sevierville, TN
37862
USA
(865)
453-'7
17
2
www.tentec.com
part # 74414