1 800 ANTENNA 9
NOTE: Antennas are not to scale
PORTABLE/TERMINAL ANTENNAS
PORTALBE /
TERMINAL
MAIN APPLICATIONS & OPPORTUNITIES
Nearly half the commercial communications radios sold today are portables. With the installed base increasing
at an extraordinary rate, the demand for replacement antennas is growing fast. Unlike mobile and base anten-
nas, portable radio antennas are subject to a variety of abuses leading to premature failure. Antennas are twisted
off, sat on, slammed in the door and used to pull the radios out of their holsters! The result is an average need for
replacement every four years.
Portable radio antennas cover a broad range of applications including:
Cellular/PCS fixed and telescoping masts
LMR/SMR fixed, flexible rubber antennas
Rigid, rotating, flexible and telescoping antennas for portable data terminals
Various other communications and telemetry applications.
In addition, there are several antenna types to fit a specific radio. The type selected depends on exact customer
requirements including:
Radio model
Connector type
Frequency range
Performance desired
Size constraints
Budget
A proper replacement can restore or improve radio performance. With a good understanding of portable radio
antennas, a sales associate or technician can make the right choice the first time and assure a happy customer.
PORTABLE ANTENNA PERFORMANCE
Portable antennas must endure a tough environment of physical abuse and poor performance conditions. The
portable radio provides a typically small ground plane. Performance characteristics are further complicated by
proximity to the hand, head and body as well as variations in antenna polarization.
Portable antennas typically operate in a highly variable, uncontrolled environment of high multipath due to structures
or use in or near an automobile. When used inside a vehicle, performance can be reduced by as much as 80 percent.
Actual electrical performance (resulting in improved clarity and longer talk distance) can vary significantly between
antenna types. A good knowledge of these basic electrical types helps in the selection process.
A general rule of thumb for portable antenna performance is “longer is better.” Quarter wave whip antennas
perform better than helical types. Half-wave antennas perform better than whips. “Short” antennas deliver the
poorest electrical performance, but are often selected when physical size and durability are more important than
absolute gain.
The best antenna performance is found in a ground plane independent, true center fed half wave dipole. The
availability of different electrical types is dependent on frequency and connector types.
www.larsen-antennas.com NOTE: Antennas are not to scale
10
PORTABLE/TERMINAL ANTENNAS
The following chart summarizes performance, size and cost parameters for various antenna types.
ANTENNA PERFORMANCE CHART
Type Bandwidth Performance Length Connector Frequency Pricing
Helical Short 6% Poor (**) Short All VHF/UHF $$
Helical 8% Average (***) Shorter All Low/Mid/VHF/UHF $$
Helical Quarter Wave 12% Good (***) Longer All except SMA VHF $$
Whip 12% Good (***) Mid All UHF+ $
End Fed Half Wave 10% Better (****) Longer Coxial 800+ $$$
Half Wave Dipole 10% Best (*****) Longer Coaxial 800+ $$$$
Wide Band 25%+ Good (***) Longer Coaxial All $$$$$
Dual Band 2x8% Average (***) Mid Coaxial VHF/UHF $$
Due to the high variability of use, measurements are difficult to make on portable antennas. All Larsen portable
antenna designs are tested for gain and VSWR using a standard fixture for portable antennas. Gain measurements
are determined based on range or chamber measurements. Performance ratings are determined using a VSWR stan-
dard of less than 2.0:1.
1 800 ANTENNA 11
NOTE: Antennas are not to scale
PORTABLE/TERMINAL ANTENNAS
PORTALBE /
TERMINAL
PORTABLE ANTENNA ELECTRICAL TYPES
Quarter Wave Whip
Whip antennas are typically produced from a single
piece of durable braided steel with a conductive coat-
ing for improved electrical performance. The Quarter
Wave Whip is generally used for frequencies above 400
MHz due to the length required. Properties include
broad banded (10 to 12 percent), simple and low priced.
Gain performance is average.
End Fed Half Wave
End Fed Half Wave antennas utilize a micro matching
circuit to allow a full half wave antenna design. The
antenna can be a whip or helical depending on antenna
size and performance objectives. End Fed Half Waves
are typically available in frequencies above 800 MHz.
These antennas provide higher performance with a
10 percent band width and improved gain over whip
antennas.
Center Fed Dipole
The Center Fed Dipole is a true 1/2 wave dipole
antenna, providing the highest gain performance in a
portable antenna. The dipole, a ground plane indepen-
dent design, is not hampered by the small mass of the
portable radio.
Dual Band
Dual Band antennas feature two operating frequencies
matching popular dual band radio types. Although dual
band antennas do not offer maximum antenna perfor-
mance, they do offer the convenience of multi-band
operation with a single antenna.
www.larsen-antennas.com NOTE: Antennas are not to scale
12
PORTABLE/TERMINAL ANTENNAS
Helical Quarter Wave
Helical antennas are produced using a coiled piece of
wire coated with a conductive material. The pitch and
diameter of the coil determines the overall antenna
length. Helical designs are usually used in Low, Mid and
VHF applications due to its shorter length. Helicals are
more narrow banded than whips and
deliver less gain.
Stealth Blade
Stealth Blade antennas utilize printed circuit technology.
The ultra-slim design allows it to be mounted virtually
anywhere without obstruction - in vehicles for voice
and data, mobile computing or other mobile and por-
table terminal applications. The antenna is encased in
adhesive-lined polyolefin tubing. This encapsulated tub-
ing provides added strain relief at the coaxial
connection.
PORTABLE ANTENNA ELECTRICAL TYPES
1 800 ANTENNA 13
NOTE: Antennas are not to scale
PORTABLE/TERMINAL ANTENNAS
PORTALBE /
TERMINAL
EXTERNAL CONSTRUCTION
Special characteristics of portable antennas include:
Flexibility - Is the antenna more rigid or more flexible?
Memory - When deflected, does the antenna return to a straight and upright position?
Abrasion resistance - Is the cover material easily cut or scarred?
Identification - Is the antenna easily identified by frequency application?
Portable antennas also come in a variety of construction types to meet customer preferences.
Molded Portable Antennas
The most popular construction type is the molded antenna. This is the style found on most commercial radios deliv-
ered today. Molded antennas offer attractive styling and extreme durability.
Most SPOTS! antennas are overmolded. Once the radiator is assembled, the complete electrical design is placed
in a mold and injected under high pressure with a high-grade polyurethane compound. The result is a single, fused
unit. The antenna is then tuned to frequency and capped with the trademarked SPOTS! color spot cap.
Some antennas are constructed with a molded sleeve design. In this case the sleeve is molded independently and
glued over the radiator. Sleeve designs offer greater styling flexibility. Sleeving is required for antennas with micro-
circuit networks. Generally, sleeve designs are considered less durable than overmolded antennas.
PVC Coated and Polyolefin Tube Antennas
Some antennas are constructed using a PVC dip or Polyolefin Shrink Tube cover construction. Generally these
antenna types are produced for specialty products or low volume designs. The high flexibility of the process requires
no special tooling so very short production runs can be made. Larsens ExacTune Kulduckies® are hand-built, tuned
to the exact customer specification and coated with a heavy-duty PVC cover. Kulduckies® will offer higher electric
performance but a slightly lower durability than molded SPOTS! antennas.
www.larsen-antennas.com NOTE: Antennas are not to scale
14
PORTABLE/TERMINAL ANTENNAS
ANTENNA CONNECTORS
Antenna / radio interface is one of the greatest challenges for portable antenna applications. The interface is affect-
ed by the connector type as well as the mechanical or design features of the radio. For example, some radios have
recessed antenna ports and other radios have antenna ports which fit into recessed antennas! We have identified 11
interface types referenced below by the SPOTS! connector codes:
Types 10 and 14 are simple male stud antenna connectors.
Types 15 - 18 are TNC and BNC connectors. Each is available with the connector exposed or covered by the
antenna cover.
Types 20 - 24 are SMA-type connectors. SMA-types are generally the most confusing; we have included these
technical drawings to take the “guess work” out of selecting the correct SMA-type connector.
SMA FT1 SMA FT3SMA FT2
SMA MT2SMA MT1
No Skirt
Flush Insulator
Partial Skirt Partial Skirt
Recessed Insulator Recessed Insulator
Extended Base Flush Base
1 800 ANTENNA 15
NOTE: Antennas are not to scale
PORTABLE/TERMINAL ANTENNAS
PORTALBE /
TERMINAL
PORTABLE ANTENNA STYLES
VHF (136 - 225 MHZ)
1
1. Style: SPHL (136 - 221 MHz) Injection Molded
Approximate Length: 8”
Frequency Bands: See chart on Page 23
Connector Types: 10, 14, 15, 16, 17, 18, 20, 21, 22,
23, 24
2. Style: SPHS (152-172 MHz) Injection Molded
Approximate Length: 4”
Frequency Bands: See chart on Page 23
Connector Types: 10, 21
Helical short
3. Style: KDVHF (136 - 174 MHz) or
KDUHF (406-512 MHz)PVC “Dipped”
Approximate Length: 8”
Frequency Bands: Factory ExacTune,
specify frequency
Connectors: All standard Kulduckie® connectors
4. Style: KDFREQHQ (136-222 MHz) PVC “Dipped”
Approximate Length: 9 1/2”
Frequency Bands: Factory ExacTune,
specify frequency
Connectors: All standard Kulduckie® connectors.
Helical 1/4 wave
5. Style: SPWB (136 - 174 MHz) Injection Molded
Approximate Length: 7”
Connector Types: 21, 22
6. Style: “Q” (136 - 512 MHz) Stainless Steel
Approximate Length: 20” VHF
Frequency Bands: Field tunable from
136 - 512 MHz
Connectors: BNC, TNC, PL-259
1/4 wave
4 5 632
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16
PORTABLE/TERMINAL ANTENNAS
PORTABLE ANTENNA STYLES
UHF (406 - 512 MHZ)
1
1. Style: SPHS (403 - 512 MHz) Injection Molded
Approximate Length: 3”
Frequency Bands: See chart on Page 23
Connector Types: 10, 15, 21, 22, 23
Helical short
2. Style: SPWH (400 - 512 MHz) Injection Molded
Approximate Length: 6”
Frequency Bands: See chart on Page 23
Connector Types: 10, 14, 15, 16, 17, 18, 20, 21, 22,
23, 24
1/4 wave whip (broad band)
3. Style: KD FREQ (406 - 512 MHz) PVC “Dipped”
Approximate Length: 6”
Frequency Bands: Factory ExacTune,
specify frequency
Connectors - all standard Kulduckie® connectors.
1/4 wave whip
4. Style: KD FREQ HW (406-512 MHz)
PVC “Dipped”
Approximate Length: 16.5”
Frequency Bands: Factory ExacTune,
specify frequency
Connectors: BNC
1/2 wave whip
5. Style: SB (450 - 470 MHz)
Approximate Length: 10”
Frequency Bands: 450-470 MHz
Connectors: FME
Printed circuit dipole
6. Style: “Q” (136 - 512 MHz) Stainless Steel
Approximate Length: 7” UHF
Frequency Bands - Field tunable from
136 - 512 MHz
Connectors: BNC, TNC, PL259
1/4 wave whip
4 5 632
1 800 ANTENNA 17
NOTE: Antennas are not to scale
PORTABLE/TERMINAL ANTENNAS
PORTALBE /
TERMINAL
PORTABLE ANTENNA STYLES
800 - 2500 MHZ TRUNKING, CELLULAR, PCS, DCS, GSM, ISM, DATA
1
1. Style: SPHS (806 - 960 MHz) Injection Molded
Approximate Length: 2.75”
Frequency Bands: 800 - 864, 872 - 954 MHz
Connector Types: 20, 21, 22, 23, 24
Helical short
2. Style: SPWH (806 - 960 MHz) Injection Molded
Approximate Length: 4”
Frequency Bands: 782 - 882, 863 - 974 MHz
Connector Types: 14, 20, 21, 22, 23, 24
1/4 wave whip (broad band)
3. Style: SPEN (806 - 960 MHz)
Approximate Length: 6.5”
Frequency Bands: 806 - 866 MHz
Connector Type: 14
End fed 1/2 wave
4. Style: SPDA (806 - 2400 MHz)
Approximate Length: 8”
Frequency Bands: 824-894, 890-960, 1710-1880,
1850-1990, 2400-2500 MHz
Connector Types: 17, 24. For reverse thread or
reverse pin, contact factory.
Center Fed Dipole
5. Style: KD FREQ (806 - 960 MHz) PVC “Dipped”
Approximate Length: 4”
Frequency Bands: Factory ExacTune™,
specify frequency
Connectors - All standard Kulduckie® connectors.
1/4 wave whip (broad band)
6. Style: SB (806 - 960 MHz)
Approximate Length: 5.2”
Frequency Bands: 806 - 896, 890 - 960 MHz
Connectors: FME, MPL, TNC, SMA
Printed circuit dipole
7. Style: SB ( 2400 - 2500 MHz)
Approximate Length: 2”
Frequency Bands: 2400 - 2500 MHz
Connectors: SMA, SMB, MMCX
Printed circuit dipole
432 75 6
www.larsen-antennas.com NOTE: Antennas are not to scale
18
KuLDUCKIE® ANTENNAS
EXACTUNE HIGH PERFORMANCE KULDUCKIE® ANTENNAS
The Larsen KuLDUCKIE® (KD) is recognized around the world as the ultimate in high-performance portable
antennas! Each antenna is constructed of superior conductive materials and hand-tuned to the frequency speci-
fied by the customer. Each portable antenna is tuned to frequency using a mechanical radio body simulator to give
the most accurate frequency response. As most portable antennas are ground plane dependent, it is important to
specify the application the antennas will be used on to ensure accurate factory tuning.
KDs feature a rugged coating of Polyolefin and PVC to assure superior performance under the most demanding
conditions.
“Hand-built”, high-performance KDs deliver greater transmit range and long life due to these unique features:
Copper / brass radiators
Exclusive ExacTune process individually scope tunes each antenna to the exact frequency specified
2.0:1 or less VSWR
Fully soldered (not crimped) construction
Fully sealed, Plastisol coated
Injection molded housings
Silver plated contact pins
Larsen designed “super BNC” uses a Teflon insulator, silver plated pin and double spring design to prevent
connector failure
KULDUCKIE® FREQUENCY COLOR CODE
VHF FREQUENCY COLOR UHF FREQUENCY COLOR
136 - 140 MHz Blue 406 - 420 MHz Black
142 - 149 MHz Green 450 - 469 MHz Black
150 - 160 MHz Yellow 470 - 512 MHz Black
162 - 174 MHz Red 150 / 450 MHz Blue
1 800 ANTENNA 19
NOTE: Antennas are not to scale
PORTALBE /
TERMINAL
KuLDUCKIE® ANTENNAS
1/4 WAVE WHIP
Attractive and durable PVC finish
Brass wound cable radiator
for conductivity, flexibility and
strength
Fully soldered, not just crimped,
for best electrical performance
and long life
Silver-plated contact pin or
durable brass connection provides
excellent electrical contact and
long life
Available for UHF / 800 / 900
Approximate length: 6”
HELICAL
Attractive and durable PVC finish
Special low-loss heat-shrink
Polyolefin tubing separates radiat-
ing element from outer PVC coat-
ing to minimize dielectric loss
Highly efficient .50 steel and
copper-plated radiating element
means improved conductivity and
performance
Soldered electrical connection is
covered with a copper jacket then
flooded with solder to give double
protection at the point of maxi-
mum stress
Silver-plated contact pin or
durable brass connection provides
excellent electrical contact and
long life
Available for VHF / UHF
Approx length: VHF - 8”
UHF - 3”
HQ
Design pioneered at Larsen
HQ delivers a noticeable improve-
ment in range and sound clarity
Brass wound cable radiator
for conductivity, flexibility and
strength
Attractive and durable PVC finish
Low-loss Polyolefin protects the
helix from the higher loss PVC
jacket material
Highly efficient .50 steel and
copper-plated radiating element
means improved conductivity and
performance
Soldered electrical connection is
covered with a copper jacket then
flooded with solder to give double
protection at the point of maxi-
mum stress
Silver-plated contact pin or
durable brass connection provides
excellent electrical contact and
long life
Available for VHF
Approx. length: 9 1/2”
www.larsen-antennas.com NOTE: Antennas are not to scale
20
HALF WAVE UHF
Brass wound cable radiator
for conductivity, flexibility and
strength
Attractive and durable PVC finish
Fully soldered, not just crimped,
for best electrical performance
and long life
Sturdy polycarbonate transformer
housing coil cannot flex and
change frequency
Superior air wound impedance
transformer provides higher Q
and deeper resonance
Silver-plated contact pin or
durable brass connection provides
excellent electrical contact and
long life
Available for UHF
Approx. length: 16”
Q-1/4 WAVE
Flexible 17-7 stainless steel rod
provides simplicity and extra dura-
bility
Fully soldered connection for
durability and electrical perfor-
mance
BNC, TNC or PL-259 connectors
only
Approx. length: 4 3/4” to 20”
KuLDUCKIE® ANTENNAS
1 800 ANTENNA 21
NOTE: Antennas are not to scale
PORTALBE /
TERMINAL
KuLDUCKIE® ANTENNAS
PART ELECTRICAL FREQUENCY APPROX
NUMBER TYPE BAND (MHz) LENGTH
1/4-32x3/16
KD2FREQHQ1 HQ Helical 1/4 Wave 136 - 140 9 1/2”
KD2FREQHQ2 HQ Helical 1/4 Wave 142 - 149 9 1/2”
KD2FREQHQ3 HQ Helical 1/4 Wave 150 - 161 9 1/2”
KD2FREQHQ4 HQ Helical 1/4 Wave 162 - 174 9 1/2”
TNC MALE
KD3FREQHQ1 HQ Helical 1/4 Wave 136 - 140 9 1/2”
KD3FREQHQ2 HQ Helical 1/4 Wave 142 - 149 9 1/2”
KD3FREQHQ3 HQ Helical 1/4 Wave 150 - 161 9 1/2”
KD3FREQHQ4 HQ Helical 1/4 Wave 162 - 174 9 1/2”
KD3FREQHQ5 HQ Helical 1/4 Wave 200 - 222 9 1/2”
KD13(freq) 1/4 Wave 406 - 960 6”
TNCQ Q 1/4 Wave 136 - 512 Varies by freq
BNC MALE
KD4UHF Helical 406 - 512 3”
KD4VHF1 Helical 136 - 141 8”
KD4VHF2 Helical 142 - 149 8”
KD4VHF3 Helical 150 - 161 8”
KD4VHF4 Helical 162 - 174 8”
KD4FREQHQ1 HQ Helical 1/4 Wave 136 - 140 9 1/2”
KD4FREQHQ2 HQ Helical 1/4 Wave 142 - 149 9 1/2”
KD4FREQHQ3 HQ Helical 1/4 Wave 150 - 161 9 1/2”
KD4FREQHQ4 HQ Helical 1/4 Wave 162 - 174 9 1/2”
KD4150T Helical 130 - 180 Varies by freq
KD14(freq) 1/4 Wave 406 - 960 6”
KD14FREQHW1 HW UHF 1/2 Wave 315 - 409 16 1/2”
KD14FREQHW2 HW UHF 1/2 Wave 416 - 504 16 1/2”
BNCQ Q 1/4 Wave 136 - 512 Varies by freq
KULDUCKIE® SELECTION GUIDE
All factory tuned KuLDUCKIES® are ExacTuned to your specified frequency. To order, replace the FREQ, UHF or
VHF designation with your desired center frequency.
www.larsen-antennas.com NOTE: Antennas are not to scale
22
KuLDUCKIE® ANTENNAS
PART ELECTRICAL FREQUENCY APPROX
NUMBER TYPE BAND (MHz) LENGTH
5/16-32x3/8
KD7FREQHQ1 HQ Helical 1/4 Wave 136 - 140 9 1/2”
KD7FREQHQ2 HQ Helical 1/4 Wave 142 - 149 9 1/2”
KD7FREQHQ3 HQ Helical 1/4 Wave 150 - 161 9 1/2”
KD7FREQHQ4 HQ Helical 1/4 Wave 162 - 174 9 1/2”
PL-259
KD9FREQHQ1 HQ Helical 1/4 Wave 136 - 140 9 1/2”
KD9FREQHQ2 HQ Helical 1/4 Wave 142 - 149 9 1/2”
KD9FREQHQ3 HQ Helical 1/4 Wave 150 - 161 9 1/2”
KD9FREQHQ4 HQ Helical 1/4 Wave 162 - 174 9 1/2”
KD19(freq) 1/4 Wave 406 - 512 6”
PQ 1/4 Wave 144 - 512 Varies by freq
5/16-24 THDS Female
KD22VHF1 Helical 136 - 141 8”
KD22VHF2 Helical 142 - 149 8”
KD22VHF3 Helical 150 - 161 8”
KD22VHF4 Helical 162 - 174 8”
KD22FREQHQ1 HQ Helical 1/4 Wave 136 - 140 91/2”
KD22FREQHQ2 HQ Helical 1/4 Wave 142 - 149 91/2”
KD22FREQHQ3 HQ Helical 1/4 Wave 150 - 161 91/2”
KD22FREQHQ4 HQ Helical 1/4 Wave 162 - 174 91/2”
1 800 ANTENNA 23
NOTE: Antennas are not to scale
PORTABLE/TERMINAL ANTENNAS
PORTALBE /
TERMINAL
SPOTS! HIGH PERFORMANCE MOLDED PORTABLE ANTENNAS
Larsen SPOTS! represent the leading edge in modern antenna technology. SPOTS! are built to the same
high standards used in Larsen’s OEM antenna production. These antennas are the same design and construc-
tion as supplied to many of the top radio producers.
Our fully molded design produces an ultra-tough antenna ready for severe handling and weather conditions.
Tough OEM-formula polyurethane (PU) fully molded antenna covering to withstand extremes in temperature,
shock and humidity
Hard-drawn steel and three mil copper clad helical radiators for high performance
Bronze-coated whips for high conductivity
Mechanically connected and soldered construction
Attractive OEM-style antenna appearance
SPOTS! FREQUENCY COLOR CODE
(SEE COLOR SPOT ON ANTENNA TOP)
VHF CENTER FREQUENCY COLOR
144 (138-150 MHz) Gray
156 (150 - 162 MHz) Orange
160 (154 - 166 MHz) Green
167 (160 - 174 MHz) Red
UHF CENTER FREQUENCY COLOR
420 (403 - 437 MHz) Blue
450 (432 - 468 MHz) Yellow
470 (450 - 490 MHz) Red
490 (470 - 510 MHz) Green
800 / 900 CENTER FREQUENCY COLOR
832 (795 - 870 MHz) Blue
918 (872 - 964 MHz) Red
1800 (1710 - 1850 MHz) Black
1900 (1850 - 1990 MHz) Black
2400 (2400 - 2500 MHz) Black
SPOTS!
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24
SPOTS! ANTENNAS
HL - VHF HELICAL
Over-molded helical design for
VHF applications
Hard-drawn steel coil with left
hand spiral provides the best
structural integrity
Full three mils of copper coating
gives high electrical performance
SPOTS! helicals are over-mold-
ed instead of sleeved for longer
life and better mechanical memory
Typical Length: 8” max
HS - HELICAL SHORT
High-pitch helical coil allows
shorter antenna at same frequency
Hard-drawn steel coil with left
hand spiral provides the best
structural integrity
Full three mils of copper coating
gives high electrical performance
SPOTS! helicals are over-mold-
ed instead of sleeved for longer
life and better mechanical memory
Molded 1/4 wave helical “stubby”
for less obtrusive antenna, avail-
able in VHF and SMR frequencies
Typical 4” VHF
Length: 3” UHF
2 3/4” 800 / 900 MHz
WH - WHIP ANTNENA
Molded from tough, OEM-speci-
fied Polyurethane blend for resis-
tance to water, cracking or perma-
nent bending
Special whip material is OEM-
specification steel braid with
bronze coat for improved electri-
cal performance
For UHF, SMR and data applica-
tions
Typical 6” UHF
Length: 3” 800/900 MHz
1 800 ANTENNA 25
NOTE: Antennas are not to scale
PORTALBE /
TERMINAL
SPOTS! ANTENNAS
EN - HALF WAVE END FED
1/2 Wave end fed whip-type
antenna
Improved performance over
1/4 qe whip due to a longer radi-
ator
Molded from tough, OEM-speci-
fied Polyurethane blend for resis-
tance to water, cracking or perma-
nent bending
Special whip material is OEM-
specification steel braid with
bronze coat for improved electri-
cal performance
For SMR and data applications
Typical Length: 7” 800/900 MHz
DA - Dipole
Articulating right angle
Full 1/2 wave dipole antenna
Highest performance antenna for
800 / 900 MHz applications
Center fed design allows true
dipole performance with notice-
able improvement in range and
quality over standard whip
antennas
Molded from tough, OEM-speci-
fied Polyurethane blend for
resistance to water, cracking or
permanent bending
For SMR and data applications
Typical Length: 8” 800/900 MHz
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26
SPOTS! ANTENNAS
DECODING SPOTS! PART NUMBERS
Decoding SPOTS! part numbers is a simple “formula” of product line plus antenna type plus connector number
plus center frequency.
Typical part number: SPHL10144
SP HL 10 144
SPOTS! Helical Connector Center Cut
Product Line Antenna Type Number Frequency
CODE ANTENNA TYPE
HL Helical Type - Standard
HS Helical Type - Short
WH Whip
EN End Fed 1/2 Wave
DA 1/2 Wave Dipole with Articulated Right Angle Connector
DP 1/2 Wave Dipole
WB Wide Band
CODE CONNECTOR CONNECTOR DESCRIPTION
10 1/4-32x3/16 Threaded Male Stud Connector (MX Type)
14 M7x1.0 Threaded Male Stud Connector (MD Type)
15 BNC BNC Exposed-Chrome (BN Type)
16 BNC Covered BNC Covered (BNX Type)
17 TNC TNC Exposed - Chrome (TN Type)
17RP* TNC TNC Exposed - Reverse Polarity
18 TNC Covered TNC Covered (TNX Type)
20 SMA Male T1 SMA Male - Extended Base (SMS Type)
21 SMA F T1 SMA Female - Flush Base (SF Type)
22 SMA F T2 SMA Female - Recessed Insulator - No Cover Skirt (EFJ Type) (SFJ Type)
23 SMA F T3 SMA Female - Recessed Insulator - Short Cover Skirt (Uniden Type) (SFU Type)
24 SMA Male T2 SMA Male - Flush Base (SM Type)
24RP* SMA Male T2 SMA Male - Flush Base - Reverse Polarity
* Special order connector. Contact factory for information.
1 800 ANTENNA 27
NOTE: Antennas are not to scale
PORTALBE /
TERMINAL
SPOTS! ANTENNAS
SPOTS! ANTENNA SELECTION GUIDE BY CONNECTOR TYPE
Determine connector type on the following pages and select the proper antenna based on frequency and type
below. Field tunable antennas come with a cutting chart and cap to allow for tuning to exact frequency.
** This antenna is designed with a longer “skirt” for use with newer ICOM radios. Minimum order quantities apply.
Please contact the factory for more information.
Refer to Antenna Performance Chart on Page 10.
1/4-32X3/16
Male stud type mount with skirt
(MX type)
SPOTS! Connector Code 10
Popular Brands Supported
Motorola, Kenwood, Maxon,
Midland, Wilson, G.E., Vertex
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPHL10156 150 - 162 Helical Standard 1/4 Wave 8”
SPHS10156 152 - 160 Helical Short 1/4 Wave 4”
SPHL10160 154 - 166 Helical Standard - 1/4 Wave 8”
SPHL10160IC** CC to 157 Helical Standard 1/4 Wave 8”
SPHL10167 160 - 174 Helical Standard 1/4 Wave 8”
SPHL10167IC** CC to 167 Helical Standard 1/4 Wave 8”
SPWH10420 395 - 445 Whip Standard 1/4 Wave 6”
SPHS10420 403 - 437 Helical Short 1/4 Wave 3”
SPWH10450 425 - 475 Whip Standard 1/4 Wave 6”
SPHS10450 432 - 468 Helical Short 1/4 Wave 3”
SPWH10470 450 - 490 Whip Standard 1/4 Wave 6”
SPHS10470 452 - 488 Helical Short 1/4 Wave 3”
SPHL10FT Field Tunable 136 - 221 Helical Standard 1/4 Wave 8”
1/4-32X3/16 - MALE STUD CONNECTOR (MX TYPE) CODE 10
M7.0X1.0
Male stud type connector
unskirted (MD type)
SPOTS! Connector Code 14
Popular Brands Supported
G.E., Ericsson
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPEN14832 806 - 866 Whip - 1/2 Wave End Fed 7”
SPWH14832 782 - 882 Whip - Standard - 1/4 Wave 3”
SPHS14832 800 - 865 Helical - Short - 1/4 Wave 2 ¾”
SPEN14918 890 - 960 Half Wave End Fed 6”
SPHL14FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 7”
M7 X 1.00 METRIC CONNECTOR (MD TYPE) CODE 14
www.larsen-antennas.com NOTE: Antennas are not to scale
28
SPOTS! ANTENNAS
BNC
BNC Male coaxial connector
unskirted
SPOTS! Connector Code 15
Popular Brands Supported
G.E., Kenwood, Motorola,
Maxon, Johnson
BNC-S
BNC Male coaxial connector
fully skirted (BNX type)
SPOTS! Connector Code 16
Popular Brands Supported
Ericsson
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPHS15450 432 - 468 Helical - Short - 1/4 Wave 3”
SPHL15FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH15FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
BNC CONNECTOR (BN TYPE) CODE 15
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPHL16FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH16FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
BNC CONNECTOR COVERED TYPE (BNX TYPE) CODE 16
TNC
TNC Male coaxial connnector
unskirted (TN type)
SPOTS! Connector Code 17
Popular Brands Supported
Icom, Standard
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPDA17832 824 - 894 Center Fed Dipole 8”
SPDA17850/1900 824 -894 / 1850 - 1990 Center Fed Dipole 7 ½”
SPDA17918 890-960 Center Fed Dipole 8”
SPDA171800 1710 - 1850 Center Fed Dipole 6 ½”
SPDA171900 1850 - 1990 Center Fed Dipole 6 ½”
SPDA172400 2400 - 2500 Center Fed Dipole 6”
SPDA17RP2400 2400 - 2500 Center Fed Dipole 6”
SPDA17RP918 890 - 960 Center Fed Dipole 8”
SPHL17FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH17FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
TNC CONNECTOR - STANDARD (TN TYPE) CODE 17
Refer to Antenna Performance Chart on Page 10.
1 800 ANTENNA 29
NOTE: Antennas are not to scale
PORTALBE /
TERMINAL
SPOTS! ANTENNAS
Refer to Antenna Performance Chart on Page 10.
SMA MALE T1
SMA Male extended base
(SMS Type)
SPOTS! Connector Code 20
Popular Brands Supported
Standard
TNC-S
TNC Coaxial connector fully
skirted (TNX type)
SPOTS! Connector Code 18
Popular Brands Supported
Vertex
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPHL18FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH18FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
SPWH18832 782 - 822 Whip - Standard - 1/4 Wave 2 3/4”
TNC CONNECTOR - COVERED (TNX TYPE) CODE 18
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPWH20832 782 - 882 Whip - Standard - 1/4 Wave 3”
SPHS20832 800 - 864 Helical - Short - 1/4 Wave 2 ¾”
SPWH20918 863 - 973 Whip - Standard - 1/4 Wave 3”
SPHS20918 872 - 954 Helical - Short - 1/4 Wave 2 ¾”
SPHL20FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH20FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
SMA MALE STANDARD - EXTENDED BASE - T1 (SMS TYPE) CODE 20
SMA F T1
SMA Female flush insulator &
partial skirt (SF Type)
SPOTS! Connector Code 21
Popular Brands Supported
Motorola
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPWB21150 136 - 174 Wideband 6 ¾”
SPHL21156 150 - 162 Helical - Standard - 1/4 Wave 8”
SPHS21156 152 - 160 Helical - Short - 1/4 Wave 4”
SPHL21167 160 - 174 Helical - Standard - 1/4 Wave 8”
SPHS21167 162 - 172 Helical - Short - 1/4 Wave 4”
SPWB21425 380 - 470 Wideband 6 ½”
SPWH21450 425 - 475 Whip - Standard - 1/4 Wave 6”
SPHS21450 432 - 468 Helical - Short - 1/4 Wave 3”
SPHS21490 475 - 512 Helical - Short - 1/4 Wave 3”
SPWH21832 782 - 882 Whip - Standard - 1/4 Wave 3”
SPHS21832 800 - 864 Helical - Short - 1/4 Wave 2 ¾”
SPWH21918 863 - 973 Whip - Standard - 1/4 Wave 3”
SPHS21918 872 - 954 Helical - Short - 1/4 Wave 2 ¾”
SPHL21FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH21FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
SMA FEMALE - NON STANDARD MOTOROLA TYPE (SF TYPE) CODE 21
www.larsen-antennas.com NOTE: Antennas are not to scale
30
Refer to Antenna Performance Chart on Page 10.
SPOTS! ANTENNAS
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPWB22150 136 - 174 Wideband 6 ¾”
SPHL22156 150 - 162 Helical - Standard - 1/4 Wave 8”
SPHL22167 160 - 174 Helical - Standard - 1/4 Wave 8”
SPWH22450 425 - 475 Whip - Standard - 1/4 Wave 6”
SPHS22450 432 - 468 Helical - Short - 1/4 Wave 3”
SPWH22470 450 - 490 Whip - Standard - 1/4 Wave 6”
SPHS22470 452 - 468 Helical - Short - 1/4 Wave 3”
SPHS22490 475 - 512 Helical - Short - 1/4 Wave 3”
SPWH22832 782 - 882 Whip - Standard - 1/4 Wave 3”
SPHS22832 800 - 864 Helical - Short - 1/4 Wave 2 ¾”
SPWH22918 863 - 973 Whip - Standard - 1/4 Wave 3”
SPHS22918 872 - 954 Helical - Short - 1/4 Wave 2 ¾”
SPHL22FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH22FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
SMA FEMALE STANDARD - FLUSH BASE - T2 (SFJ TYPE) CODE 22
SMA F T2
SMA Female recessed insulator
& no skirt (SJF type)
SPOTS! Connector Code 22
Popular Brands Supported
EF Johnson, Kenwood
SMA F T3
SMA Female recessed insulator
& partial skirt (SFU type)
SPOTS! Connector Code 23
Popular Brands Supported
Kenwood (2005 and newer
models), Uniden, King
PART FREQUENCY APPROX
NUMBER BAND (MHZ) ANTENNA TYPE LENGTH
SPWB23150 136 - 174 Wideband 6 ¾”
SPHL23156 150 - 162 Helical - Standard - 1/4 Wave 8”
SPHL23167 160 - 174 Helical - Standard - 1/4 Wave 8”
SPWH23450 425 - 475 Whip - Standard - 1/4 Wave 6”
SPHS23450 432 - 468 Helical - Short - 1/4 Wave 3”
SPWH23470 450 - 490 Whip - Standard - 1/4 Wave 6”
SPHS23470 452 - 488 Helical - Short - 1/4 Wave 3”
SPWH23490 470 - 512 Whip - Standard - 1/4 Wave 6”
SPHS23490 475 - 512 Helical - Short - 1/4 Wave 3”
SPWH23832 782-882 Whip - Standard - 1/4 Wave 3”
SPWH23918 863 - 973 Whip - Standard - 1/4 Wave 3”
SPHS23918 872 - 954 Helical - Short - 1/4 Wave 2 ¾”
SPHL23FT Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH23FT Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
SMA FEMALE STANDARD - HALF SKIRT BASE - T3 (SFU TYPE) CODE 23
1 800 ANTENNA 31
NOTE: Antennas are not to scale
PORTALBE /
TERMINAL
Refer to Antenna Performance Chart on Page 10.
SPOTS! ANTENNAS
PART FREQUENCY APPROX
NUMBER CONNECTOR BAND (MHz) ANTENNA TYPE LENGTH
SPDA24832 SMA 824 - 894 Center Fed Dipole 9”
SPDA24850/1900 SMA 806 - 925 / 1800 - 2170 Dual Band Dipole 6 ¾
SPDS24850/1900W SMA 806 - 925 / 1800 - 2170 Dual Band Dipole 6 ¾
SPDA24918 SMA M T2 890 - 960 Center Fed Dipole 8”
SPDA241800 SMA M T2 1710 - 1880 Center Fed Dipole 6 ½”
SPDA241900 SMA M T2 1850 - 1990 Center Fed Dipole 6 ½”
SPDA242400 SMA 2400 - 2500 Center Fed Dipole 6”
SPDA24RP918 SMA M T2 RP 890 - 960 Center Fed Dipole 8”
SPDA24RP2400 SMA M T2 RP 2400 - 2500 Center Fed Dipole 6”
SPDP24832 SMA M T2 824 - 894 Center Fed Dipole 8”
SPDP24918 SMA M T2 890 - 960 Center Fed Dipole
SPDP242400 SMA M T2 2400 - 2500 Center Fed Dipole 3 ½”
SPDP24RP2400 SMA M T2 RP 2400 - 2500 Center Fed Dipole 3 ½”
SPHS24832 SMA M T2 800 - 864 Helical - Short - 1/4 Wave 2 ¾”
SPWH24918 SMA M T2 863 - 973 Whip - Standard - 1/4 Wave 3”
SPHS24918 SMA M T2 872 - 954 Helical - Short - 1/4 Wave 2 ¾”
SPHL24FT SMA M T2 Field Tunable 136 - 221 Helical - Standard - 1/4 Wave 8”
SPWH24FT SMA M T2 Field Tunable 400 -512 Whip - Standard - 1/4 Wave 6”
R380.500.125 SMA M T2 RP 2400 - 2500 Molded - 1/4 Wave 2½”
SMA MALE T2
SMA Male flush base (SM Type)
SPOTS! Connector Code 24
Popular Brands Supported
G.E., Technophone
SMA MALE - FLUSH BASE - T2 (SM TYPE) CODE 24
www.larsen-antennas.com NOTE: Antennas are not to scale
32
STEALTH BLADE ANTENNAS
Larsen Stealth Blades utilize printed circuit technology to provide superior performance and
impedance bandwidth. Its ultra slim design allows mounting virtually anywhere without obstruc-
tion - in vehicles for voice and data, mobile computing or other mobile / portable terminal applica-
tions. The antenna can even be concealed inside the lining of garments worn for covert communica-
tions operations.
STEALTH BLADES
The following single band Stealth Blade antennas hava a gain of 2.14 dBi, a maximum power of 3 Watts and linear
polarization.
FREQ. RANGE BANDWIDTH
MODEL (MHz) @1.5:2:1 DIMENSIONS COAX CONN
SB450FME12 450-470 20/30 10” x 0.75” 12’ RG-316 FME
SB8003 806-896 67/90 5.2” x 0.75” 3’ RG-174 NO CONN
SB80012 806-896 67/90 5.2” x 0.75” 12’ RG-174 NO CONN
SB800FME3 806-896 67/90 5.2” x 0.75” 3’ RG-174 FME
SB800FME12 806-896 67/90 5.2” x 0.75” 12’ RG-174 FME
SB800MPL3 806-896 67/90 5.2” x 0.75” 3’ RG-174 MPL
SB800MPL12 806-896 67/90 5.2” x 0.75” 12’ RG-174 MPL
SB800SMA3 806-896 67/90 5.2” x 0.75” 3’ RG-174 SMA
SB800SMA12 806-896 67/90 5.2” x 0.75” 12’ RG-174 SMA
SB800TNC3 806-896 67/90 5.2” x 0.75” 3’ RG-174 TNC
SB800TNC12 806-896 67/90 5.2” x 0.75” 12’ RG-174 TNC
SB9003 890-960 55/70 5.2” x 0.75” 3’ RG-174 NO CONN
SB90012 890-960 55/70 5.2” x 0.75” 12’ RG-174 NO CONN
SB900SMA3 890-960 55/70 5.2” x 0.75” 3’ RG-174 SMA
SB900SMA12 890-960 55/70 5.2” x 0.75” 12’ RG-174 SMA
SB24003 2400-2500 60/105 2.7” x 0.75” 3’ RG-174 NO CONN
SB24006 2400-2500 60/105 2.7” x 0.75” 6’ RG-174 NO CONN
SB2400SMA3 2400-2500 60/105 2.7” x 0.75” 3’ RG-174 SMA
SB2400SMA6 2400-2500 60/105 2.7” x 0.75” 6’ RG-174 SMA
SB2400SMB3 2400-2500 60/105 2.7” x 0.75” 3’ RG-174 SMB
SB2400SMB6 2400-2500 60/105 2.7” x 0.75” 6’ RG-174 SMB
SB2400MMCX3 2400-2500 60/105 2.7” x 0.75” 3’ RG-174 MMCX
SB2400MMCX6 2400-2500 60/105 2.7” x 0.75” 6’ RG-174 MMCX
MULTI BAND STEALTH BLADES
The following multi band Stealth Blade antennas have a gain of 2.14 dBi (Cell) / 2.14 dBi (PCS) and a maximum
power of 3 Watts.
FREQUENCY BANDWIDTH (%)
MODEL RANGE (MHz) (SMR/CELL/PCS) DIMENSIONS COAX CONN
R380.900.323 806 - 960 / 1710 - 1999 39/10/15 5” x .8” x .2” 10’ RG-174 FME
R380.900.334 806 - 960 / 1710 - 1999 39/10/15 5” x .8” x .2” 10’ RG-174 SMA