KING
KY 196/196E/KY 197/197E
VHF COMMUNICATIONS TRANSCEIVER
2. When the ejector is sLid into pLace, the retaining tab of the contact is raised, aLLowing
the contact to be removed by puLLing moderateLy on the Lead.
3. Neither the contact or position is damaged by removing a contact; however, the contact
shouLd be checked visuaLLy before reinstaLLing in connector to be certain that retaining
tab "A" extends as shown (see Figure 2-1) for retention in connector.
E. Coax Connector
Refer to Figure 2-3 for the ~etaiLs for mounting the right angLe coaxiaL 9~C connector to the
coax cabLe. InstaLL the connector into the mounting rack.
2.3.5 KY 196/196E/KY 197/197E INSTALLATION
A. Looking at the top of the unit, make sure the front Lobe of the hoLddown device is in a
verticaL position.
B. SLide the unit into the mouting rack untiL the front Lobe touches the mounting rack.
C. Insert a 3/32" ALLen wrench through a hoLd in the front paneL to engage the Locking screw.
Turn clockwise untiL the rear Lobe engages the mounting rack. Continue turning until the unit
is secure in the mounting rack Do not overtighten.
D. For removaL, turn the Locking screw counterclockwise, using a 3/32" ALLen wrench, untiL the
unit disengages from the mounting rack. PulL the unit out of the mounting rack by DulLing on
the metaL tabs Located behind the front paneL on each side of the unit. Radio Extractor KPN
071-6045-00 is designed to aid in the removaL of this and other King products (See Figure
2-2).
2.4
POST INST
AllA
TlON CHECK
An operation performance fLight test is recommended after the instalLation is compLeted to insure
satisfactory performance of the equipment in its normaL environment. Check all aircraft control
movements to be sure no electrical cables interfere with their operation. To check the communications
transceiver, maintain an appropriate aLtitude and contact a ground station faci l ity at a range of at
least fifty nautical miles. Contact a ground station close in. PuLL the voLume control knob out to
defeat the automatic squelch feature and listen for any unusual electrical noise which would renuce the
COMI\1
receiver sensitivity by increasing the squeLch threshold. If possible, verify the communications
capability on both the high and low end of the VHF
COMM
band.
NOTE
AS AN ADDED PRECAUTION BEFORE
THE FLIGHT, CHECK THE
ANTENNA.
VSWR SHOULD
BE
CHECKED
WITH
AN
IN-LINE TYPE WATTMETER
INSERTED IN THE
COAXIAL
TRANSMISSION LINE BETWEEN THE
TRANSCEIVER AND THE ANTENNA. ANY PROBLEM WITH THE AItITENItIA
INSTALLATION WILL MOST LIKELY BE SEEN AS A HIGH REFLECTED
?OWER. A VSWR OF 3:1 WILL RESULT IN A 25~ LOSS IN POWER.
NOTE
THE BRIGHTNESS OF THE DISPLAY CAN BE SET FOR THE MOST
PLEASING INTENSITY BY ADJUSTING R130 DURING LOW LIGHT LEVEL
CONDITIONS. R130 IS ACCESSIBLE THROUGH THE BOTTOM OF THE
RADIO WHEN IT IS PARTIALLY PULLED OUT OF THE RACK.
Rev. 3, September, 1983
I1\10035-4
Page2-~
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