You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

Hey thanks-- I've seen some guys use that epoxy trick and make coils you'd swear were commercial stock. I couldn't quite pull that off, I'm afraid.

Yeah, those green wires are what attached the coil to the antenna and to the ground lug. I had some 8x32 hardware in the garage and used that and spade lugs for those connections as well as the antenna wire, which is just 14 ga stranded insulated house wire.

The coax was just soldered directly to the coil and the common ground connection. If I had it to do over again I'd use a piece of a buss bar where the coil, coax shield, coax capactor shield, and green wire for the "ground" connect. All I have is a 250W gun and even though those were added one at a time it took forever to heat that up once it was all connected. That coil, 33 feet of wire, and 70 feet of coax make a very good heat sink! There are no radials.

A ground plane would have been much easier to make, could have been multiband, and I could have used the push-up pole that was already there-- but I wanted to avoid the multiple tie-off points, and for some reason was just Jones'n to make one of these. If the band will cooperate I can decide whether I like it.

Rick

<blockquote data-quote="RickC." data-source="post: 135909" data-attributes="member: 9297">Hey thanks-- I&#039;ve seen some guys use that epoxy trick and make coils you&#039;d swear were commercial stock.&nbsp; I couldn&#039;t quite pull that off, I&#039;m afraid.Yeah, those green wires are what attached the coil to the antenna and to the ground lug.&nbsp; I had some 8x32 hardware in the garage and used that and spade lugs for those connections as well as the antenna wire, which is just 14 ga stranded insulated house wire.&nbsp;The coax was just soldered directly to the coil and the common ground connection.&nbsp; If I had it to do over again I&#039;d use a piece of a buss bar where the coil, coax shield, coax capactor shield, and green wire for the &quot;ground&quot; connect.&nbsp; All I have is a 250W gun and even though those were added one at a time it took forever to heat that up once it was all connected.&nbsp; That coil, 33 feet of wire, and 70 feet of coax make a very good heat sink!&nbsp; There are no radials.A ground plane would have been much easier to make, could have been multiband, and I could have used the push-up pole that was already there-- but I wanted to avoid the multiple tie-off points, and for some reason was just Jones&#039;n to make one of these.&nbsp; If the band will cooperate I can decide whether I like it.&nbsp; &nbsp; &nbsp; &nbsp; Rick</blockquote>

[QUOTE="RickC., post: 135909, member: 9297"] Hey thanks-- I've seen some guys use that epoxy trick and make coils you'd swear were commercial stock. I couldn't quite pull that off, I'm afraid. Yeah, those green wires are what attached the coil to the antenna and to the ground lug. I had some 8x32 hardware in the garage and used that and spade lugs for those connections as well as the antenna wire, which is just 14 ga stranded insulated house wire. The coax was just soldered directly to the coil and the common ground connection. If I had it to do over again I'd use a piece of a buss bar where the coil, coax shield, coax capactor shield, and green wire for the "ground" connect. All I have is a 250W gun and even though those were added one at a time it took forever to heat that up once it was all connected. That coil, 33 feet of wire, and 70 feet of coax make a very good heat sink! There are no radials. A ground plane would have been much easier to make, could have been multiband, and I could have used the push-up pole that was already there-- but I wanted to avoid the multiple tie-off points, and for some reason was just Jones'n to make one of these. If the band will cooperate I can decide whether I like it. Rick [/QUOTE]

Top Bottom