[TowerTalk] ROTOR CONTROLLERS
Dale M. Schwartz
dale at immlawfirm.com
Sun Dec 27 12:08:37 EST 2020
All in jest.
> Message: 2
> Date: Sat, 26 Dec 2020 18:28:19 -0600
> From: Kim Elmore <cw_de_n5op at sbcglobal.net>
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] ROTOR CONTROLLERS
> Message-ID: <5A6768AB-48D4-49EC-968F-A81804E732E9 at sbcglobal.net>
> Content-Type: text/plain; charset=utf-8
>
> This comment must come from some that that ?Christmas spirit? I keep hearing talked about....
>
> Kim N5OP
>
> "People that make music together cannot be enemies, at least as long as the music lasts." -- Paul Hindemith
>
>> On Dec 26, 2020, at 2:38 PM, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:
>>
>> ?Merry Christmas to you too.
>>
>> Yikes.
>>
>>>> On 12/26/2020 1:27 PM, Herbert Hatton via TowerTalk wrote:
>>> Dale-
>>> You lawyers charge what $1500 per hour. Get me a crying towel.
>>>
>>> Herbert ,W4ASA
>>> Carrollton
>>>
>>>>> On Dec 26, 2020, at 1:49 PM, W1JCW John <W1JCW at hotmail.com> wrote:
>>>>
>>>> ?Have the deluxe r21 and love it
>>>> ________________________________
>>>> From: TowerTalk <towertalk-bounces at contesting.com> on behalf of Dale M. Schwartz <dale at immlawfirm.com>
>>>> Sent: Saturday, December 26, 2020 12:17:18 PM
>>>> To: towertalk at contesting.com <towertalk at contesting.com>
>>>> Subject: [TowerTalk] ROTOR CONTROLLERS
>>>>
>>>>
>>>> I bit the bullet and ordered the Green Heron digital controller box. That way, if I upgrade the router to another brand (other than Hi-Gain) it will work.
>>>> Thank all of you who gave me advice. As the ?World?s Least Technical Ham? I needed good advice.
>>>> BUT NONE OF YOU RESPONDED TO MY GO-FUND-ME PLEA!
>>>>
>>>> Dale/K4ROZ
>>>>
>>>> [X]
>>>>
>>>> Dale M. Schwartz
>>>> SCHWARTZ | POSEL
>>>> Immigration Law Group
>>>> Suite 450 RiverEdge One
>>>> 5500 Interstate North Pkwy., NW
>>>> Atlanta, GA 30328
>>>>
>>>> Tel: 770 951-1100
>>>> Fax: 770 951-1113
>>>> www.immlawfirm.com<http://www.immlawfirm.com>
>>>>
>>>> PAST PRESIDENT: AMERICAN
>>>> IMMIGRATION LAWYERS ASS'N
>>>> ADJUNCT PROFESSOR: EMORY UNIVERSITY SCHOOL OF LAW (1989-2014)
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> TowerTalk mailing list
>>>> TowerTalk at contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>> _______________________________________________
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> TowerTalk mailing list
>>>> TowerTalk at contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 26 Dec 2020 17:35:28 -0800
> From: Grant Saviers <grants2 at pacbell.net>
> To: undefined <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Thrust Bearing
> Message-ID: <de22f4e2-3cef-496c-780f-93379cd475d7 at pacbell.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> It is pricey. The balls can't rotate on two axis at the same time so it
> is only one of radial, thrust or angular. I can't see top and bottom
> clearances but I see radial clearance. If both are there it must be
> angular. Plus the tight clearances on the WX shield need radial
> centering so angular is required with the observed side clearance.
>
> I'm also partial to that since DXeng is also Summit Racing with some
> serious mechanical chops and IMO it is the best alternative for a tower
> top mast support that must have radial and thrust capacity. It appears
> to me to be a tooled casting, unlikely it is sand cast.
>
> The Chinese tapered roller bearings are probably good enough for mast
> supports, but consider the top and bottom housings that need designed
> and machined and the cost of the 6061 raw stock. I also think the next
> larger bearing size is needed to have enough aluminum in the bore.
>
> Yes, the same bearing from Japan, EU or even Brazil will be many more $$.
>
> Grant KZ1W
>
>> On 12/26/2020 15:08, Wilson Lamb wrote:
>> I differ.
>> Look closely.
>> The vertical thrust is going right through the balls to the horizontal part of the bottom race.
>> Radial loads are going right from the top casting to the bottom.
>> At least until the castings wear enough to generate some slop and let the balls run up the curves of the races.
>> Loading it with really sticky grease would be helpful.
>> It could only be useful in jobs like beams, where there isn't much motion in a ham's life.
>> FWIW, I find the price painfully high.
>> Here's a 2" bare bearing for reference: https://www.onlinebearingstore.com/28584-28521-tapered-roller-bearing-2-1-16x3-5-8x31-32-ubc-usbc.html
>> I'm sure the DXE product suffers from small quantity, special housing, etc.
>> If you look at quality, hardened, real bearings, you'll find prices even higher!
>> WL
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 26 Dec 2020 20:55:37 -0500
> From: Haring family <dcharing at gmail.com>
> To: "Lux, Jim" <jim at luxfamily.com>
> Cc: towertalk <towertalk at contesting.com>
> Subject: Re: [TowerTalk] 4 square - collins hybrid
> measurements/component values
> Message-ID:
> <CA+i23xnjEozg4P1scz9D6bAuFgzgSveAdUweBaF+=6JcD5z4cQ at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> No need to duplicate... check ON4UN/5th. He has a model of the Collins
> coupler included that Roy W7EL made up for EZNEC, I think. Dan AC6LA may
> have something for it for AutoEZ also.
>
> regards,
>
> Dave N3AC
>
>
>> On Sat, Dec 26, 2020 at 2:37 PM Lux, Jim <jim at luxfamily.com> wrote:
>>
>> I'm putting together some models and I was wondering if someone has
>> actual measured 4 port data for the LC Collins hybrid.
>>
>> I've got some sample capacitance and inductance values
>>
>> (e.g. for 80m, 436 pF and 2.18 uH)
>>
>> I'm assuming that the transformer is "well coupled" so the mutual L is
>> almost the same as the inductance of the winding.
>>
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 26 Dec 2020 18:35:21 -0800
> From: "Lux, Jim" <jim at luxfamily.com>
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] 4 square - collins hybrid
> measurements/component values
> Message-ID: <09affba4-64d1-01e9-8d8f-3f6e9f482e79 at luxfamily.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>> On 12/26/20 5:55 PM, Haring family wrote:
>> No need to duplicate... check ON4UN/5th. He has a model of the Collins
>> coupler included that Roy W7EL made up for EZNEC, I think. Dan AC6LA may
>> have something for it for AutoEZ also.
>>
>> regards,
>>
>> Dave N3AC
>
>
> I have the 3rd edition which doesn't have the models. But what I'm
> really looking for is measured data on a real box (with all the parasitics).
>
>
>>
>>
>>> On Sat, Dec 26, 2020 at 2:37 PM Lux, Jim <jim at luxfamily.com> wrote:
>>>
>>> I'm putting together some models and I was wondering if someone has
>>> actual measured 4 port data for the LC Collins hybrid.
>>>
>>> I've got some sample capacitance and inductance values
>>>
>>> (e.g. for 80m, 436 pF and 2.18 uH)
>>>
>>> I'm assuming that the transformer is "well coupled" so the mutual L is
>>> almost the same as the inductance of the winding.
>>>
>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>
> ------------------------------
>
> Message: 6
> Date: Sat, 26 Dec 2020 18:45:38 -0800
> From: "Richard (Rick) Karlquist" <richard at karlquist.com>
> To: Steve Jones <n6sj at earthlink.net>, "'Jonathan - KE0YBL'"
> <KE0YBL at protonmail.com>, "'Robie Elms'" <ruler55 at gmail.com>
> Cc: "'Gary'" <gary_mayfield at hotmail.com>, towertalk at contesting.com
> Subject: Re: [TowerTalk] Hy-Gain / MFJ
> Message-ID: <809c9a68-0652-944b-05ea-b3f09ad23dc6 at karlquist.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>
>
>> On 12/26/2020 10:45 AM, Steve Jones wrote:
>> Rick,
>> Do you have a K4 on order?
>> 73,
>> Steve
>> N6SJ
>>
>
>
> Of course not!
>
> 73
> Rick N6RK
>
>
> ------------------------------
>
> Message: 7
> Date: Sat, 26 Dec 2020 23:15:11 -0500
> From: "Tim Duffy" <k3lr at k3lr.com>
> To: "'Lux, Jim'" <jim at luxfamily.com>, <towertalk at contesting.com>
> Subject: Re: [TowerTalk] 4 square - collins hybrid
> measurements/component values
> Message-ID: <036001d6dc06$df3e87e0$9dbb97a0$@k3lr.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hello Jim:
>
> "All the parasitics"???
>
> 73
> Tim K3LR
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Lux,
> Jim
> Sent: Saturday, December 26, 2020 9:35 PM
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] 4 square - collins hybrid measurements/component
> values
>
>> On 12/26/20 5:55 PM, Haring family wrote:
>> No need to duplicate... check ON4UN/5th. He has a model of the Collins
>> coupler included that Roy W7EL made up for EZNEC, I think. Dan AC6LA may
>> have something for it for AutoEZ also.
>>
>> regards,
>>
>> Dave N3AC
>
>
> I have the 3rd edition which doesn't have the models. But what I'm
> really looking for is measured data on a real box (with all the parasitics).
>
>
>>
>>
>>> On Sat, Dec 26, 2020 at 2:37 PM Lux, Jim <jim at luxfamily.com> wrote:
>>>
>>> I'm putting together some models and I was wondering if someone has
>>> actual measured 4 port data for the LC Collins hybrid.
>>>
>>> I've got some sample capacitance and inductance values
>>>
>>> (e.g. for 80m, 436 pF and 2.18 uH)
>>>
>>> I'm assuming that the transformer is "well coupled" so the mutual L is
>>> almost the same as the inductance of the winding.
>>>
>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> ------------------------------
>
> Message: 8
> Date: Sat, 26 Dec 2020 21:50:12 -0800
> From: "Lux, Jim" <jim at luxfamily.com>
> To: Tim Duffy <k3lr at k3lr.com>, towertalk at contesting.com
> Subject: Re: [TowerTalk] 4 square - collins hybrid
> measurements/component values
> Message-ID: <fee7b0fb-638a-7110-f3c4-cc108dcff139 at luxfamily.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>> On 12/26/20 8:15 PM, Tim Duffy wrote:
>> Hello Jim:
>>
>> "All the parasitics"???
>>
>> 73
>> Tim K3LR
>
>
> most practical implementations of the hybrid will have:
>
> 1) leakage inductance in the transformer (i.e. coupling factor isn't 1)
>
> 2) loss in the inductor (from R in the winding, and loss in the core)
>
> 3) C between the windings (basically in parallel with the lumped Cs)
>
> If someone has actually measured one on a VNA, that would be useful.
>
>
>>
>> -----Original Message-----
>> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Lux,
>> Jim
>> Sent: Saturday, December 26, 2020 9:35 PM
>> To: towertalk at contesting.com
>> Subject: Re: [TowerTalk] 4 square - collins hybrid measurements/component
>> values
>>
>>> On 12/26/20 5:55 PM, Haring family wrote:
>>> No need to duplicate... check ON4UN/5th. He has a model of the Collins
>>> coupler included that Roy W7EL made up for EZNEC, I think. Dan AC6LA may
>>> have something for it for AutoEZ also.
>>>
>>> regards,
>>>
>>> Dave N3AC
>>
>> I have the 3rd edition which doesn't have the models. But what I'm
>> really looking for is measured data on a real box (with all the parasitics).
>>
>>
>>>
>>>> On Sat, Dec 26, 2020 at 2:37 PM Lux, Jim <jim at luxfamily.com> wrote:
>>>
>>>> I'm putting together some models and I was wondering if someone has
>>>> actual measured 4 port data for the LC Collins hybrid.
>>>>
>>>> I've got some sample capacitance and inductance values
>>>>
>>>> (e.g. for 80m, 436 pF and 2.18 uH)
>>>>
>>>> I'm assuming that the transformer is "well coupled" so the mutual L is
>>>> almost the same as the inductance of the winding.
>>>>
>>>>
>>>> _______________________________________________
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> TowerTalk mailing list
>>>> TowerTalk at contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Sun, 27 Dec 2020 03:30:07 -0600
> From: <maflukey at gmail.com>
> To: "'Lux, Jim'" <jim at luxfamily.com>, "'Tim Duffy'" <k3lr at k3lr.com>,
> <towertalk at contesting.com>
> Subject: Re: [TowerTalk] 4 square - collins hybrid
> measurements/component values
> Message-ID: <068001d6dc32$de163080$9a429180$@gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Didn't ON4UN give a presentation at Dayton in 2005 that covered his testing
> of different 4-square feed systems? I thought his conclusion was that
> there was less than a 1dB difference in performance for the quadrature
> method, but that it was possible to narrow the main lobe somewhat using an
> elaborate LC network to optimize phasing. I'm going from memory (mine not
> so good these days - hi) but it might be worth revisiting.
>
> 73 & best holiday wishes,
> Matt
> KM5VI
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Lux, Jim
> Sent: Saturday, December 26, 2020 11:50 PM
> To: Tim Duffy <k3lr at k3lr.com>; towertalk at contesting.com
> Subject: Re: [TowerTalk] 4 square - collins hybrid measurements/component
> values
>
>> On 12/26/20 8:15 PM, Tim Duffy wrote:
>> Hello Jim:
>>
>> "All the parasitics"???
>>
>> 73
>> Tim K3LR
>
>
> most practical implementations of the hybrid will have:
>
> 1) leakage inductance in the transformer (i.e. coupling factor isn't 1)
>
> 2) loss in the inductor (from R in the winding, and loss in the core)
>
> 3) C between the windings (basically in parallel with the lumped Cs)
>
> If someone has actually measured one on a VNA, that would be useful.
>
>
>>
>> -----Original Message-----
>> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
>> Lux, Jim
>> Sent: Saturday, December 26, 2020 9:35 PM
>> To: towertalk at contesting.com
>> Subject: Re: [TowerTalk] 4 square - collins hybrid
>> measurements/component values
>>
>>> On 12/26/20 5:55 PM, Haring family wrote:
>>> No need to duplicate... check ON4UN/5th. He has a model of the
>>> Collins coupler included that Roy W7EL made up for EZNEC, I think.
>>> Dan AC6LA may have something for it for AutoEZ also.
>>>
>>> regards,
>>>
>>> Dave N3AC
>>
>> I have the 3rd edition which doesn't have the models. But what I'm
>> really looking for is measured data on a real box (with all the
> parasitics).
>>
>>
>>>
>>>> On Sat, Dec 26, 2020 at 2:37 PM Lux, Jim <jim at luxfamily.com> wrote:
>>>
>>>> I'm putting together some models and I was wondering if someone has
>>>> actual measured 4 port data for the LC Collins hybrid.
>>>>
>>>> I've got some sample capacitance and inductance values
>>>>
>>>> (e.g. for 80m, 436 pF and 2.18 uH)
>>>>
>>>> I'm assuming that the transformer is "well coupled" so the mutual L
>>>> is almost the same as the inductance of the winding.
>>>>
>>>>
>>>> _______________________________________________
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> TowerTalk mailing list
>>>> TowerTalk at contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> ------------------------------
>
> Message: 10
> Date: Sun, 27 Dec 2020 04:59:56 -0600
> From: <maflukey at gmail.com>
> To: <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Thrust Bearing
> Message-ID: <06ac01d6dc3f$69cd7050$3d6850f0$@gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> As an alternative suggestion.... I have been using flange mounted pillow
> block bearings as mast thrust bearings - first time was about 20 years ago.
> IMHO they are typically plenty strong - ratings are something like ~6500 lbs
> static radial load and ~ 2500 lbs of static axial load. Cost was about $35
> then, probably $50+ now, but they seem to last forever if you keep them
> pumped full of grease and protect them from the weather. For standard 2" OD
> structural steel mast I used 2-1/16" bore bearings. For 1.5" SCH 160 pipe
> masts I used 1-15/16" bore bearings. Recommend to confirm the mast OD by
> measurement with a mic or dial caliper, especially if you are using
> repurposed masts... For a weather shield I used silicone bellows type
> plumbing vent roof jack seals that I attached to the masts just above the
> bearings with an automotive worm clamp. The bottom of the bellows sat just
> high enough over the top plate of the tower so as not to rub but completely
> covered the bearing housing.... don't forget to slide the seal over the
> mast before you install it or you have to start over - hi. Also suggest to
> put a coat of paint on the mounting side of the bearing block or it will
> rust and/or interact with the galvanized top plate surface. My larger
> tower accepted the 4-bolt bearing flange by re-drilling the top plate but
> three smaller towers I had to fabricate adapter plates. I used 1/4" mild
> steel plate for the adapters. PS - pillow block bearings pivot in their
> housings so be sure to keep the bottom end of the mast restrained whenever
> it is disconnected from the rotor.
>
> 73 & Happy Holidays!
> Matt
> KM5VI
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> End of TowerTalk Digest, Vol 216, Issue 27
> ******************************************
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