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Let's play Identify The Antenna - Week 52 Edition
Helping a friend out on what appears to be an older VHF dipole array. 4 bays, nothing written on the harness. Here are the pics he has: Original resolution in a Google Photos album here: https://photos.app.goo.gl/6BiaVcsWMCFM5mD48. Thanks in advance brain trust :) -AJ, K6LOR |
I believe these were made by Antenna
Specialists.
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Chuck WB2EDV On 12/27/2024 4:27 PM, K6LOR.com via
groups.io wrote:
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Those were part of an Antenna Specialists antenna. I found one of the sets of loops at a ham fest years ago and put them on a mast from a defective Phelps Dodge VHF antenna. Works fine from 146 -162MHz. Milt N3LTQ On Dec 27, 2024, at 19:41, Chuck Kelsey via groups.io <wb2edv@...> wrote:
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Hi, Seem Antenna Specialists dipoles from the non- economy version of the Power Divider series. (the heavy duty one) 150 - 160, 155 - 165 and 164 - 174 MHz versions. I have the "economy" edition on air since 1988, 9.5 mm diameter rods, lightweight dipole clamp but it is still operational on a 163.225 Base Station. Sweep the dipoles to check the frequency segment and proceed to make a harness for 2 or 4 dipoles. No need for RG-83 coax, AS use only 50 and 75 Ohm cables, the dipoles are the usual 100 Oms impedance at about 10 cm from the mast. However you will have the well known problem with non -resin filled cables and critical coax splices at the the two or three cable junctions, 3 M tape works very well for weather protection. The mast sections are 42 and 52 mm dia, aircraft aluminium. Very robust antenna ! Michael SY1EGX
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AJ,
Michael is correct on the Antenna Specialists antenna elements that you have. The Model Number is ASPx-601 or ASPx-602 depending on whether you have a 2-element or 4-element antenna, respectively. The “x” is the frequency range of the antenna. See attached spec sheet from the 1990 Antenna Specialists catalog. Lots of bandwidth available from these ¾-inch radiating elements.
Jerry, N4JL
From: repeater-builder@groups.io <repeater-builder@groups.io> On Behalf Of wotan398 via groups.io
Sent: Saturday, December 28, 2024 3:35 AM To: repeater-builder@groups.io Subject: Re: [repeater-builder] Let's play Identify The Antenna - Week 52 Edition
Hi, Seem Antenna Specialists dipoles from the non- economy version of the Power Divider series. (the heavy duty one) 150 - 160, 155 - 165 and 164 - 174 MHz versions. I have the "economy" edition on air since 1988, 9.5 mm diameter rods, lightweight dipole clamp but it is still operational on a 163.225 Base Station. Sweep the dipoles to check the frequency segment and proceed to make a harness for 2 or 4 dipoles. No need for RG-83 coax, AS use only 50 and 75 Ohm cables, the dipoles are the usual 100 Oms impedance at about 10 cm from the mast. However you will have the well known problem with non -resin filled cables and critical coax splices at the the two or three cable junctions, 3 M tape works very well for weather protection. The mast sections are 42 and 52 mm dia, aircraft aluminium. Very robust antenna !
Michael SY1EGX
On Sat, Dec 28, 2024 at 5:24 AM Milton Engle via groups.io <n3ltq=yahoo.com@groups.io> wrote:
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