Sequoia Aircraft Corporation F.8L Falco, Construction Manual

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F.8L Falco Construction Manual 14–4 Revision 4, March 1, 2002
Materials required:
1 RST Ferrite-foil Antenna Kit
1 UG88 (male) BNC Connector
1 UG89 (female) BNC Connector
20’ RG58 Coaxial Cable (includes 3’ extra)
Since this system was designed, the location of the marker beacon receiver has been changed to
the aft face of frame No. 6. Builders wishing to install the marker beacon receiver on the
instrument panel may do so, but we now consider the standard installation location to be on the
aft face of frame No. 6. This will mean that extra coaxial cable is supplied. This cable may be
used for the DME since the DME is now installed on the aft face of frame No. 6.
Transponder Antenna Installation
See Drawings No. 160 and 162. The transponder antenna is a rod-ground plane device. The
ground plane should be mounted horizontally (parallel with fuselage W.L. 0) with the radiating
rod pointing straight down.
Install the transponder antenna in the right wing between stations 3 and 4. It is important that
the the antenna be installed as low as possible and centered between the aileron cables. The fore-
and-aft position in the wing is not critical, but it is best to locate the antenna in the forward part
since this results in a shorter coaxial cable. The ground plane may be glued to a piece of 1mm
birch plywood with epoxy glue. The plywood sheet should be supported by 10x10 spruce strips,
and the whole affair may be installed between the ribs in any convenient manner. You may find
that the most convenient location is to locate the radiating rod in the middle of one of the ribs.
We would suggest that all nails and staples be removed from the ribs as well as any used in gluing
on the wing skin.
Route the coaxial cable to the instrument panel as shown in Drawing No. 160.
Materials required:
1 RST Transponder/DME Antenna Kit
10’ RG58 Coaxial Cable (includes 3-1/2’ extra)
A second transponder antenna, if required, may be installed in the right wing between stations 5
and 6. This requires 12’ of coaxial cable, which includes 3-1/2’ extra.
DME Antenna Installation
See Drawings No. 160 and 162. The DME antenna is identical to the transponder antenna
except that it is installed in the left wing.
Materials required:
1 RST Transponder/DME Antenna Kit
10’ RG58 Coaxial Cable (includes 3-1/2’ extra)
A second DME antenna, if required, may be installed in the left wing between stations 5 and 6.
This requires 12’ of coaxial cable, which includes 3-1/2’ extra.
You should note that the DME receiver may be installed either in the instrument panel or
remotely on the aft face of fuselage frame No. 6. If the DME receiver is installed remotely, the
coaxial cable must be run to the receiver. It may be preferable to install the antenna in the
alternate position for a shorter coaxial cable. Note also that the marker beacon receiver cable