Blake UK DML18WB (CARAVAN) User manual

PK/9625-01
Assembly and fitting guide
DML18WB(CARAVAN)
Kit contents
Log-periodic aerial Aerial and support clamps
Mast clamp brac et assembly 10 m cable
1 - Connector IEC 1 - Connector F-type
Instruction leaflet
1. Assemble the aerial to a suitable mast
Fix the aerial to a mast using the clamp assembly as shown.
Chec that all fixings are tight.
The diagram shows the aerial positioned for horizontal
polarisation (see section 5). For vertical polarisation turn the
aerial through 90° from the position shown.
This aerial will provide good reception in many locations when
mounted in a clear outdoor position. However reception in
wea er signal areas may require the use of a higher gain aerial
and/or a taller mast.
2. Fit F connector to downlead cable
Prepare the cable end and fit the screw-on Type F plug as
shown. (The inner wire of the cable should extend slightly
beyond the end of the plug.)
3. Connect cable to aerial
Offer up the Type F plug on the 10m
cable to the soc et on the aerial lead.
Ensure that the inner wire of the plug
enters the centre contact of the
soc et. Screw the nut part of the
plug onto the soc et body and
tighten, preferably using a pair of
spanners (11 mm). Do not leave
the connector fin er-ti ht as this
may lead to unreliable reception.
Finally slide the waterproofing sleeve
as far as it will go over the connectors.
If the sleeve is tight on the aerial lead
a little silicone grease or petroleum
jelly can be applied as a lubricant. It
is important that the sleeve and
completed cable assembly are
supported at or near the vertical in
order to prevent water ingress.
2 mm (approximately)
end of insulation
should be flush with
this face
screw connector
body onto cable
leave foil in place
fold braid back
over sheath
8 mm
4 mm
inner wire
aerial lead
down lead
type F plug
type F socket
waterproofing
sleeve
4. Securin a mast (not supplied) to the caravan
bolt
lock nut
section through
caravan frame
A-frame option C/B/BKT
(not supplied)
Joc ey wheel option C/B/BKT2
(not supplied)
jockey wheel shaft
suitable mast
suitable mast
rotate aerial
to change
polarisation
aerial clamp bracket

Further advice may be downloaded from:
www.blake-uk.com/downloads on the following:
nreception problems
ndistributing TV signals around the home
ngeneral recommendations
Reception Advice Services
BBC Reception Advice 08700 100123
e-mail: [email protected]
web: www.bbc.co.u /reception
Ofcom  TV reception and interference
http://www.ofcom.org.u /consumer advice/tv/reception
5. Completing the installation
hoose horizontal or vertical polarisation (see diagrams) to suit the local transmitter. Point the
aerial towards the transmitter. If in doubt look at aerials on neighbouring caravans or buildings, or
consult one of the sources of transmitter information (see below).
Fit the IE coaxial plug supplied (see below) and run the cable into the caravan through a suitable
vent or opening, avoiding sharp bends. The cable, which can be shortened if desired, should be
taped tidily down the mast as shown using PV insulating tape (not supplied). Leaving the cable
to dangle freely from the aerial should be avoided since it may lead to broken connections or water
ingress. Plug the cable into your TV or *Freeview receiver.
6. Reception hints
For optimum reception position the caravan on high ground with a clear view toward the transmitter site, avoiding trees. Wherever
possible arrange that the aerial has to point away from the caravan body to see the transmitter. Adjust the aerial by slackening the wing
nuts on the lower mast clamp and rotating the whole mast for best reception. If using a *Freeview receiver use its signal quality display
as an indicator to determine the best aerial pointing direction. Remember to tighten all clamps and fixings once adjustment is complete.
If you have moved the caravan from an area served by a different transmitter your TV set and/or *Freeview receiver will almost certainly
need to be retuned (refer to their instruction manuals) and the polarization of the aerial may need to be changed. Refer to the reception
advice services listed on below for transmitter details for your new area. Some areas are served by two or more transmitters and it may
be necessary to experiment to find which one gives the best results.
* Freeview is a registered trademark of DTV Services P.L.C.
Aerial installation for hori ontally polarised transmission
Aerial installation for vertically polarised transmission
to transmitter
Aerial lead and downlead
taped to mast above and
below cable joint
a) First place the cap over cable. Strip away cable outer
sheath. Take great care not to cut through the braid wires.
Strip away insulation to reveal inner conductor.
b) Bundle the braid wires together and slide clamp over cable.
c) Dress the braid wires evenly over clamp. Push cable and clamp into connector body. *Ideally the inner conductor should be soldered
to the contact pin. Screw cap and outer body securely together. This completes fitting the plug.
7. Fitting the coaxial plug
22 mm
16 mm
inner
conductor
cap
clamp
outer body
connector body
trim and solder end of inner conductor to inner contact here*