Palomar BULLET-2006 User manual

Product Manual
End Fed OCF Antenna
BULLET-2006-500, 1500
Bands: 20-17-15-12-11-10-6
Copyright Palomar Engineers®, Inc., 1965-2023
Palomar-Engineers.com
BULLET-2006 Antenna
500 Watt Version
1500 Watt Version
Off Center Fed (OCF) antennas are very convenient as they will allow multiple bands of
operation with a simple wire antenna which is fed off center. The Palomar Engineers 2010 OCF
is a very popular antenna and consists of an off center fed dipole with sides of 25 feet and 7
feet and it will work all bands from 20-6 meters. The BULLET-2006 uses the same dimensions
but the wire section is 25 feet as in the OCF and the coax outer braid is used for the “other”
part of the OCF dipole. We place a choke on the coax at the 7 foot distance from the matching
unit and we essentially have an OCF antenna with its great frequency range, but with only a 25
foot wire length instead of the 32 feet required by the regular OCF. You feed the antenna from
one end which may be more convenient for some installations. This antenna will work on 20-
17-15-12-11-10-6 and 2 meters at reduced power. Most bands are under 3:1 SWR and easily
tuned by your transceiver’s internal antenna tuner or external tuner used with an amplifier.
These antennas are MUCH BETTER PERFORMERS than End Fed Half Wave (EFHW) antennas
because they work the WARC bands, DO NOT HAVE A DANGEROUS HIGH VOLTAGE at the
antenna connection and are shorter to fit in smaller spaces yet provide more band coverage
up to 6 meters!

Copyright Palomar Engineers®, Inc., 1965-2023
Palomar-Engineers.com
Typical Configuration
Installation
For best results raise the Bullet matching unit as high as possible (use a tree or vertical
support) and then extend the antenna wire horizontally or as an “L” (horizontal with vertical
end drop). The antenna may also be deployed as a sloper with the Bullet matching unit at the
top (best) with the wire sloping toward the ground (with the end high enough to avoid contact
by humans or animals), or at the bottom of the sloper with the antenna wire rising to a higher
point.
Any length of 50 ohm feed line ok (over 25 feet minimum recommended) but longer feed lines
over 50 feet may show reduced SWR on some bands due to soil conductivity, nearby objects,
etc. Due to local ground conditions, antenna height and feed line length, SWR may vary and
an antenna tuner may be required or some bands to bring SWR at end of feed line to
acceptable levels. Position a feed line choke (part# SOFLC) 12 feet from the matching unit.
Use a good quality 50 ohm cable adequate for the power level of your station.The Bullet
matching unit is rated for 500 or 1500 watts PEP (depending on model) for SSB and 50% for
CW or digital modes. If the matching unit becomes warm to the touch after transmitting at
high power, reduce the power output or the internal matching unit may become damaged.

Copyright Palomar Engineers®, Inc., 1965-2023
Palomar-Engineers.com
NOTE: The matching unit output is DC grounded to bleed off static electricity, however it is
not RF grounded. This antenna is a current fed antenna and has high voltage at the antenna
insulator end so keep this end away from people, animals, etc. for their safety..
The BULLET2006-500, -1500 are rated for 500, 1500 (respectively) watts PEP ICAS at a
maximum 50% duty cycle.Digital modes are approximately 50% of PEP ratings depending
upon band.
Use a coax noise filter (CMNF-500-50 or CMNF-1500) to reduce coax outer braid noise – see
website for simple test to determine whether you need one to suppress coax braid noise on
receive.
SWR
Due to local ground conditions, antenna height and feed line length, SWR may vary from
samples shown and an antenna tuner may be required or some bands or portions of bands to
bring SWR at end of feed line to acceptable levels. Use a good quality 52 ohm cable adequate
for the power level of your station.(RG8X usually good up to 1000 watts PEP).

Copyright Palomar Engineers®, Inc., 1965-2023
Palomar-Engineers.com
INDIVIDUAL BAND SWR SAMPLES – up 30 FT All Horizontal, 100 FT coax

Copyright Palomar Engineers®, Inc., 1965-2023
Palomar-Engineers.com
Antenna also works 11
meters and can be used
on 2 meters too!
ENJOY!
CAUTION
USE CAUTION WHEN INSTALLING ANTENNA AND KEEP AWAY FROM ANY POWER
LINE WIRES!
Product specification subject to change – check website for latest updates.
Made in USA by hams for hams!
Almost identical performance to our 20-6M OCF antenna but 7 feet
shorter!