Page 1 of 13 V1 system 1/16th wave “EXTENDED LOCAL RECEPTION RANGE’ HOME OMNIDIRECTIONAL * (can be used on ordinary road vehicles Rollbar / Bullbar) “FM / AM / DAB / sw / tv(vhf/uhf) / amateur / scanner / SSB” (RX) RECEIVE ANTENNA ( 30cm housing F-type connector – 0.27 Kg rigid ) INSTALLATION SETUP * (weight spec correction update Mar 2019 [270 grams] ) (Note: Some home stereo systems as do also some portable radios require to have a switch activated on their back panel to activate the external aerial connector port) (Note: this antenna can be used by alligator clipping the coaxial core to the base of a telescopic antenna on a portable radio e.g. SW world band receivers) * some minor SW gather RG6 -F-type connector : uses the coaxial core as the centre pin on the male cable connector Typical performance (mounted properly is with element above roof level with no more than 5 meters of standard RG6 (10 meters is ok but some minor signal loss) and no major signal blockage (e.g. tall close hill “or high/medium rise or simply next door tall roof or within 40 meters”) within 100 meters nb: yachts boats re – cliff faces) in a city environment for listening to a local 200 watt community stations has maximum 9 Km as good reception listening quality in good weather (around 7km in rain) [tested through city-scape] With the 1/16 th wave, another 200 watt community FM stereo station through city-scape is 17 Km away and can receive it with listening quality at the last / least valuable consistent level during good weather (receiver light flashes on a little). (Another 200 watt community FM stereo station 10 Km away, the receiver light is on strong and consistent during good weather). Both transmitters use an Omn-directional (OD) antenna . Rule of thumb of Quality loss from rain storm: A receiver aerial has 2/3rds its’ maximum good weather listening quality distance during rain to receive good listening quality signal, although the distance listening quality ceases is more abrupt (sudden signal inefficiency) and closer to the maximum reception distance for (related) the transmitter power the lower the power “something like” below 10 Kw. E.g. “Holding good listening quality during different weather types” rough estimation examples from real world receiver(s) usage : (receiver light on strong consistent) Station transmitter Power (Kw,Watt) Maximum good weather listening quality distance Km Maximum listening quality signal distance in “rain storm” Km Quantity (Distance) loss of maximum quality signal service from rain storm (Km, ratio leftover ) 40 Kw 60 Km 40 Km 20 Km (2/3) 10 Kw 50Km 30 km 30 Km (3/5) 2 Kw 40 Km 25 Km 10 Km (1/2) 200 watt 8 Km 6.4 km 1.6 Km (4/5) Denotes “sudden” signal quality degradation by distance in rain storm (maximum good weather distance is similar to rain storm distance)
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V1 system 1/16th wave ^EXTENDED LOCAL RECEPTION …windsolarhybridaustralia.x10.mx/ANTENNA-SETUP-STANDARD-(30cm)R-30-color2.pdfFM Knights Hill, Wollongong NSW. (Standard commercial
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Page 1 of 13
V1 system 1/16th wave “EXTENDED LOCAL RECEPTION RANGE’ HOME
OMNIDIRECTIONAL * (can be used on ordinary road vehicles Rollbar / Bullbar)
“FM / AM / DAB / sw / tv(vhf/uhf) / amateur / scanner / SSB” (RX) RECEIVE ANTENNA
(Note: Some home stereo systems as do also some portable radios require to have a switch
activated on their back panel to activate the external aerial connector port)
(Note: this antenna can be used by alligator clipping the coaxial core to the base of a telescopic
antenna on a portable radio e.g. SW world band receivers) * some minor SW gather
RG6 -F-type connector : uses the coaxial core as the centre pin on the male cable connector
Typical performance (mounted properly is with element above roof level with no more than 5 meters of
standard RG6 (10 meters is ok but some minor signal loss) and no major signal blockage (e.g. tall close hill “or
high/medium rise or simply next door tall roof or within 40 meters”) within 100 meters nb: yachts boats re –
cliff faces) in a city environment for listening to a local 200 watt community stations has maximum 9 Km as
good reception listening quality in good weather (around 7km in rain) [tested through city-scape]
With the 1/16th
wave, another 200 watt community FM stereo station through city-scape is 17 Km away
and can receive it with listening quality at the last / least valuable consistent level during good weather
(receiver light flashes on a little). (Another 200 watt community FM stereo station 10 Km away, the receiver
light is on strong and consistent during good weather). Both transmitters use an Omn-directional (OD)
antenna .
Rule of thumb of Quality loss from rain storm: A receiver aerial has 2/3rds its’ maximum good weather
listening quality distance during rain to receive good listening quality signal, although the distance listening
quality ceases is more abrupt (sudden signal inefficiency) and closer to the maximum reception distance for
(related) the transmitter power the lower the power “something like” below 10 Kw.
E.g. “Holding good listening quality during different weather types” rough estimation examples from real
world receiver(s) usage :
(receiver light on strong consistent)
Station transmitter Power
(Kw,Watt)
Maximum good weather
listening quality distance
Km
Maximum listening quality
signal distance in “rain
storm” Km
Quantity (Distance) loss of
maximum quality signal
service from rain storm (Km,
ratio leftover)
40 Kw 60 Km 40 Km 20 Km (2/3)
10 Kw 50Km 30 km 30 Km (3/5)
2 Kw 40 Km 25 Km 10 Km (1/2)
200 watt 8 Km 6.4 km 1.6 Km (4/5)
Denotes “sudden” signal quality degradation by distance in rain storm (maximum good
weather distance is similar to rain storm distance)
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NOTE: To the right of the diagonal black line, with a meter: reception signal level fluctuates mildly Unreal world example … * 150 Kw FM station (* 150,000 watts) 60 km (80 Km ?) good quality reception in good weather (undefined by terrain and other possible obstructions over such extents) [ nb: Guess whos' broadcasting company ! is allowed to have a high hill top location and massive high powered transmitter reaching over 2 city size locality zones - R... N... ]. Transmitter (DA) Directional aerial. 2PNN Knights Hill, Wollongong NSW.
Following are "Real world" reception examples with this antenna... (receiver location: Sydney Park, St. Peters NSW )
(Huge commercial FM) 40 Kw station (40,000 watts) is heard at 60 Km with OK listening quality and little or no background static hiss and is listening quality in good weather (undefined by terrain and other possible obstructions over such extents). Transmitter (DA) Directional aerial. I98 FM , 2WIN FM Knights Hill, Wollongong NSW. (Standard commercial FM power) 10 Kw station (10,000 watts) is heard at 60 Km on its' absolute last "(enjoyment)listening quality level" in good weather. Transmitter (DA) Directional aerial. 2GGO FM Gosford NSW. *note: Many commercial FM stations have less power than 10Kw so have less distance range below 10kw. (Many usually 2kw to 5kw, some 10Kw rarely larger) (community "non profit" FM) 200 watt "Towered / hill top ( note of interest: Friis calc does involve altitude)" located transmitter station with good LOS characteristic is audible (AKA legibly audible) with none / not any "(enjoyment)listening quality" under background hiss at 50Km . 2MCR FM Campbelltown NSW (Listed in ACMA as Transmitter (OD) Omni-Directional aerial Mount Prudhoe NSW “333m elevation”)
! The previous are consistent results of tests with a lower sensitivity receiver set in a city
area with undulating terrain and only physical mount position optimal (3 meters high – NOTE
results at 1 meter above ground are progressive signal degradation relating height without
nearby heavy obstructions) below terrain crest but not serious impeding.
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Use an online (search for titles) "Degrees Minutes Seconds to Decimal Degrees converter" to find a
transmitter position and power level in the list from the ACMA in its' online PDF "Radio and
television broadcasting stations Internet edition 2019" Use “dd mm ss.s” fields in
Figure 2 The RG6 coaxial core is the F- connector cnter pin
Figure 3 The male F-connector is only a housing for the cable
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Last things last:
When the antenna is fastened to the pole ,
be sure the pole is ‘not more than’ 10 cm (3.9 inches) against the bottom of the
antenna or it will start to obscure the internal reception element. Also do not have
the U – clamps positioned above that length of the base (simply the bottom end of
the antenna – the bottom of it is where the female F Connector is)
When the coaxial is connected to the antenna by its F – Connector pair (as shown
in the pictures) ‘be sure that there is a small curve of coaxial from the antennas’
connector to the first tied down point of the coaxial cable on the pole’ NOT a
stretched or straight piece of cable between those two points, if it is too taught the
coaxial can pull out or be stretch damaged in high wind !
After the coaxial cable is fastened by its’ connectors , be sure to wrap good quality
outdoor electrical tape from the base of the antenna at the female connector
“around the female connector continually all the way onto the coaxial cable below
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to seal the connection from rain , moisture , humidity” that can cause signal loss
from corrosion.
The connectors are not weather proof until they are sealed with outdoor/electrical
plastic tape
When mounting with the two U-clamps use eight nuts 4 tightening and 4 lock
down nuts to tighten against the first fastening nut set to prevent loosening.
o Tighten firmly to mount pole, do not crush !
o Ideally the pole should reach the antenna above “all roof obstacles” to a
height of 4 to 6 meters above the ground final elevation.
If you want to use this on a 4WD or any other vehicle
( No warranty (retrieve-inspect-replace) or blame upon the manufacturer or seller regarding malfunction of the antenna accepted after committing the following procedure to mount to a ute, 4WD or any other type of vehicle )
Rollbar and Bullbar mount only for road and 4WD vehicles and tray inclusive cabin-tray-guard pipes, or for trucks, can be the upright mirror of truck with at least 12cm of upright mirror mount strut tube clear available to mount the antenna that will not affect the safe operation and structure of the mirror, neither obstruct driver visibility and finally not cause the antenna excessive inefficiency at its operation.
1.(DO NOT remove the antenna cap) file the paint away under the pole cap rim (where the cap meets the tube) near the top and from the under rim of the cap. THEN, glue the cap and pole-tube around that rim to join them with an "extremely/immensely strong PVC glue" ( * do not remove the antenna cap ). (However a standard road vehicle or farm vehicle that does not require 4WD actions is not affected by instruction No 1 above)
2. as part of the permanent mount from the position on the vehicle, the antenna base at the upper and lower screws should be the grab points (simply not directly on/over the screws). Between the screws is better than above and below, but be sure the clamping system objects grip onto the antenna pole applying the pressure from within a few millimeters of the screws. ( e.g. pole U-clamps - note: always use 4 nuts per u-clamp 2x tightening and 2x lock-down).
3. (for Bullbar) the top 21.5 cm of the antenna including the cap contains the element system and should be at a higher level than the bonnet of the vehicle (the bottom 10cm of antenna are acceptable to obscure).
3b. (for rear Rollbar on Ute types) In likeness, the top of the antenna because it is rigid should not be protruding above cabin roof height, but mounted away from the cabin on "the base (lower end) of the angular strut of the rollbar" toward mid tray length.
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4.WARNING , Do not mount the antenna too near any objects that heavy
braking, heavy vibration / shock or heavy maneuvering causes the antenna pole to strike/contact other solid objects that could or would damage the antenna.
After full mounting and connection , using high quality super glue, glue the coaxial to the metal rim of the connector to prevent slippage, and tighten coaxial with a plastic "wire tie" to prevent the coaxial flapping in wind or slipping and pulling on the connector. (add weather gel sealant around the connector rim on the antenna and coaxial connector to waterproof)
Other considerations
Note: “A mild rain storm near the receiver geographically is worse” against signal than “a
heavy storm near the transmitter” because the signal weakens as it travels outward to the
receiver, so “it is at its weakest for purpose” near the receiver and cannot reach if too
weak from a mild rain storms’ blockage of path.
If you want to be sure that the “maximum distance rating” can be obtained or are
attempting to hold as much reception quality of a station below 40Kw over a long distance
for as long as possible, use of 1. A “larger size long distance receiver set” with more and
better quality refined signal extraction stages should be used WITH 2. at least some
reasonable “low signal loss” (low attenuation) coaxial cable type such as “Special low loss
RG6”.
A good example of better quality receiver set with more refined signal stages is any large
multi band SW (Short Wave) radio at the top end of price OR any reasonable quality brand
name permanent (large non portable) located home stereo “AM/FM/DAB radio receiver –
amplifier “combination section.
The previous often are a point with manufacturers they are able to have the internal
space to add all the required extra refinement stages and filtering unlike cheap portables
and pocket size radios, sometimes inclusive good booster stages for varied levels of weak
stations to produce near good quality sound signal decoding.
Although “large multi band SW radios” have only one speaker and sometimes no bass
treble or tone knob, these for most, do output stereo through a jack connector and switch
that can be connected to a dual input channel audio amplifier (e.g. AUX input connector
pair) and audio equalizer set (5 band or more for good discrimination) to produce high
quality sound or improve weak station audio output for use.