Actually Tashjian does sell a remote kit. There is nothing wrong with remote
controlling your tower up/down if it’s done right. Yes, you will need at least
two cameras at your tower. One facing the winch drum and one facing your coax
run up the tower. The key is how your coax is supported and where it ends up
with the tower retracted. We custom installed remotes on towers using Green
Heron Everyware wireless with relays and trained owners how to raise / lower it
safely. I will not do it on a tower without positive pull-down unless its a
Luso tower which comes standard with a remote control. These towers however
comes with a basket for coax and there are roller bearings between each section
so it makes it much safer.
The other important thing is to frequently inspect your tower, cabling, coax
and watch those cameras when you extend or retract your tower. If something
does not look right hit the stop button immediately, go out and do an
inspection.
Both UST and Tashjian has remote control options but it’s not just flicking a
switch and walking away from it while it retract or extend.
Having said this, proceed at your own risk. We did a 100ft Tashjian for a
customer and he has been remote controlling it for a while now with no issues.
Cameras and winch speed is key!
73
Andre Vanwyk, NJ0F
RFC2 Telecom LLC
Sent from my iPhone
> On Jul 20, 2022, at 11:01 AM, towertalk-request@contesting.com wrote:
>
> Send TowerTalk mailing list submissions to
> towertalk@contesting.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
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> or, via email, send a message with subject or body 'help' to
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>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of TowerTalk digest..."
>
>
> Today's Topics:
>
> 1. Re: Tashjain Towers LM470 Remote tower raising control
> (al.n6ta@gmail.com)
> 2. Stack-matching (Lee Hiers)
> 3. Re: Stack-matching (john@kk9a.com)
> 4. Re: Stack-matching (Joe Subich, W4TV)
> 5. Re: Stack-matching (Lux, Jim)
> 6. Re: Stack-matching (Lux, Jim)
> 7. Re: Stack-matching (Joe Subich, W4TV)
> 8. Re: Stack-matching (Lux, Jim)
> 9. Re: Stack-matching (Richard Thorne)
> 10. Re: Stack-matching (Lee Hiers)
> 11. Re: Stack-matching (Joe Subich, W4TV)
> 12. Re: Stack-matching (Lee Hiers)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 19 Jul 2022 09:30:05 -0700
> From: al.n6ta@gmail.com
> To: "'Steve Dyer'" <w1srd@yahoo.com>, <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Tashjain Towers LM470 Remote tower raising
> control
> Message-ID: <003b01d89b8c$ce710630$6b531290$@gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Isn't the Tashjian RLT (Wireless) a remote raising/lowering accessory? It is
> on the 2022 price list for almost $3k.
> Al
> N6TA
>
> -----Original Message-----
> From: Steve Dyer <w1srd@yahoo.com>
> Sent: Monday, July 18, 2022 6:39 PM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Tashjain Towers LM470 Remote tower raising control
>
> I am with you 100% John. Don't do it. Too many things can go wrong with
> really bad consequences.
> After a good friend (call sign withheld to protect the guilty) tore off two
> runs of LMR-600 and bent up a 3 el 40m full size, the remote was removed from
> his UST crank up. Trees grow. Beam heading indicators go bad. The list of
> potential cascade failures is not solved by a camera.
> There is a reason Tashjian does not sell one and it's not just about
> liability.
> 73,
> Steve
> W1SRD
>
>> On 7/17/2022 11:51, John Langdon wrote:
>> I was advised years ago by one of my trusted "Elmers" who had lots of
>> experience with radio gear in the Navy that it is better to cut a window in
>> your radio room than take a risk of an unexpected or uncontrolled motion of
>> a tower. I was also advised when I was in the wind turbine business (very
>> briefly) that the most dangerous thing in the modern world is an electrical
>> engineer controlling a high power mechanical system!
>>
>> 73 John N5CQ
>>
>>
>> -----Original Message-----
>> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Lux,
>> Jim
>> Sent: Sunday, July 17, 2022 1:44 PM
>> To: towertalk@contesting.com
>> Subject: Re: [TowerTalk] Tashjain Towers LM470 Remote tower raising
>> control
>>
>>> On 7/17/22 11:19 AM, Bill Eisinger wrote:
>>> It shouldn?t be too hard to adapt it such that you could use a smart switch
>>> with an Alexa (or equivalent) hub...however you would need wifi or
>>> bluetooth access at the tower...
>> Or, some form of low voltage relays and a hardwire connection.
>>
>> Or a WiFi connected relay controlled by a dedicated app, but I'd be a bit
>> nervous about trusting a "safety sensitive" function to Alexa, without some
>> serious interlocks or a fairly robust physical access control. It's kind
>> of like those ideas about automatically lowering the tower when the wind
>> goes above a certain speed. It's more complex than one thinks at first.
>>
>> I've built a fair number of network controlled devices, some controlling big
>> heavy things moving around (dish antennas, etc.) - It takes careful planning
>> and design to make sure it "fails safe". For this, since you've already
>> got to have power wires and coax going out there, adding a few wires to
>> control some relays seems a fairly simple and robust way.
>>
>>
>>
>>
>>
>>> -----Original Message-----
>>> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Ted
>>> Pauck K8NA
>>> Sent: Sunday, July 17, 2022 11:43 AM
>>> To: TowerTalk@contesting.com
>>> Subject: [TowerTalk] Tashjain Towers LM470 Remote tower raising
>>> control
>>>
>>> I recently purchased the Tashjain Towers LM470 Crank up tower. The tower
>>> comes with an electric motor control onboard for raising and lowering the
>>> tower, by a switch at the tower. I need to remote control the tower from in
>>> my radio room. There will be a camera to watch the tower raising and
>>> lowering. Tashjain does not sell a remote control for towers. Has anyone
>>> been able to remote control the LM470 or any of the other Tashjain towers?
>>>
>>> TU/73 ... de Ted K8NA
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 19 Jul 2022 16:34:00 -0400
> From: Lee Hiers <lee.hiers@gmail.com>
> To: towertalk <TowerTalk@contesting.com>
> Subject: [TowerTalk] Stack-matching
> Message-ID:
> <CAEEr=7P5EZUtVYV=f3iUehyBZu9SZ0V57vVCKt7ywsUYnfnbAA@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi all...
>
> Does anyone know of a commercial stack-matching box (for 2 antennas) that
> will send the unselected antenna to another port? As in: I'm using the
> high antenna on radio A, and that makes the low antenna available for use
> on Radio B. And vice-versa.
>
> I envision two antenna connections and a stack output and an alternative
> output...something along those lines.
>
> I thought I'd seen a commercial product that did this, but I can't find it
> now. I'm sure something could be rigged up using external relays (and I'd
> love to hear from anyone who's done that as well), but I would like to
> evaluate other options.
>
> Thanks,
>
> Lee, AA4GA
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 19 Jul 2022 17:05:52 -0400
> From: <john@kk9a.com>
> To: <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <002e01d89bb3$54945c50$fdbd14f0$@com>
> Content-Type: text/plain; charset="us-ascii"
>
> Array Solutions and 4O3A make relay devices that will swap two antennas with
> two radios but they will not combine the antennas on a single radio. If your
> two antennas are tribanders you could use triplexers, bandpass filters and
> stackmatches to use whatever combination of antennas you want on each radio.
>
> John KK9A
>
>
> Lee AA4GA wrote:
>
> Hi all...
>
> Does anyone know of a commercial stack-matching box (for 2 antennas) that
> will send the unselected antenna to another port? As in: I'm using the
> high antenna on radio A, and that makes the low antenna available for use
> on Radio B. And vice-versa.
>
> I envision two antenna connections and a stack output and an alternative
> output...something along those lines.
>
> I thought I'd seen a commercial product that did this, but I can't find it
> now. I'm sure something could be rigged up using external relays (and I'd
> love to hear from anyone who's done that as well), but I would like to
> evaluate other options.
>
> Thanks,
>
> Lee, AA4GA
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 19 Jul 2022 18:04:06 -0400
> From: "Joe Subich, W4TV" <lists@subich.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <9738fc23-462f-3438-75de-4e2f7c781969@subich.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
>
>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>>
>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>> that will send the unselected antenna to another port?
> MicroHAM stack Switch would do that for two or three antennas. AFAIK,
> the product has been discontinued.
>
> I believe the Array Solutions Stack Match will do that *with* the
> optional external relay. However, since I don't use those products
> I suggest contacting the manufacturer for details.
>
> 73,
>
> ... Joe, W4TV
>
>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>> Hi all...
>>
>> Does anyone know of a commercial stack-matching box (for 2 antennas) that
>> will send the unselected antenna to another port? As in: I'm using the
>> high antenna on radio A, and that makes the low antenna available for use
>> on Radio B. And vice-versa.
>>
>> I envision two antenna connections and a stack output and an alternative
>> output...something along those lines.
>>
>> I thought I'd seen a commercial product that did this, but I can't find it
>> now. I'm sure something could be rigged up using external relays (and I'd
>> love to hear from anyone who's done that as well), but I would like to
>> evaluate other options.
>>
>> Thanks,
>>
>> Lee, AA4GA
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 19 Jul 2022 16:26:45 -0700
> From: "Lux, Jim" <jim@luxfamily.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <32078616-dd7d-d67c-3635-f037be3e3fdd@luxfamily.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>> On 7/19/22 3:04 PM, Joe Subich, W4TV wrote:
>>
>>
>>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>>>
>>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>>> that will send the unselected antenna to another port?
>> MicroHAM stack Switch would do that for two or three antennas. AFAIK,
>> the product has been discontinued.
>>
>> I believe the Array Solutions Stack Match will do that *with* the
>> optional external relay.? However, since I don't use those products
>> I suggest contacting the manufacturer for details.
>>
>> 73,
>>
>> ?? ... Joe, W4TV
>>
>>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>>> Hi all...
>>>
>>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>>> that
>>> will send the unselected antenna to another port?? As in: I'm using the
>>> high antenna on radio A, and that makes the low antenna available for
>>> use
>>> on Radio B.? And vice-versa.
>>>
>>> I envision two antenna connections and a stack output and an alternative
>>> output...something along those lines.
>>>
>>> I thought I'd seen a commercial product that did this, but I can't
>>> find it
>>> now.? I'm sure something could be rigged up using external relays
>>> (and I'd
>>> love to hear from anyone who's done that as well), but I would like to
>>> evaluate other options.
>>>
>>> Thanks,
>
>
>
> Some other things to think about are "port to port isolation" and "fail
> safe" .
>
> You want to structure the switch matrix (e.g. if using SPDT switches) so
> that the radios are always isolated from eachother.
>
>
> If all you have is 2 antennas and 2 radios, what you want is a "transfer
> relay" or, in microwave parlance, a "baseball switch", or for DC motors,
> a "reversing switch".? It's a DPDT set up to swap paths.
>
> THey're available surplus for moderate powers (and, I suppose high
> powers), but they're designed so that you never inadvertently have
> output from Radio A going into Radio B.
>
>
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 19 Jul 2022 17:16:36 -0700
> From: "Lux, Jim" <jim@luxfamily.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <4a0358d8-a794-6236-7ff0-984db5b7edcf@luxfamily.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>> On 7/19/22 4:26 PM, Lux, Jim wrote:
>>> On 7/19/22 3:04 PM, Joe Subich, W4TV wrote:
>>>
>>>
>>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>>>>
>>>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>>>> that will send the unselected antenna to another port?
>>> MicroHAM stack Switch would do that for two or three antennas. AFAIK,
>>> the product has been discontinued.
>>>
>>> I believe the Array Solutions Stack Match will do that *with* the
>>> optional external relay.? However, since I don't use those products
>>> I suggest contacting the manufacturer for details.
>>>
>>> 73,
>>>
>>> ?? ... Joe, W4TV
>>>
>>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>>>> Hi all...
>>>>
>>>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>>>> that
>>>> will send the unselected antenna to another port?? As in: I'm using the
>>>> high antenna on radio A, and that makes the low antenna available
>>>> for use
>>>> on Radio B.? And vice-versa.
>>>>
>>>> I envision two antenna connections and a stack output and an
>>>> alternative
>>>> output...something along those lines.
>>>>
>>>> I thought I'd seen a commercial product that did this, but I can't
>>>> find it
>>>> now.? I'm sure something could be rigged up using external relays
>>>> (and I'd
>>>> love to hear from anyone who's done that as well), but I would like to
>>>> evaluate other options.
>>>>
>>>> Thanks,
>>
>>
>>
>> Some other things to think about are "port to port isolation" and
>> "fail safe" .
>>
>> You want to structure the switch matrix (e.g. if using SPDT switches)
>> so that the radios are always isolated from eachother.
>>
>>
>> If all you have is 2 antennas and 2 radios, what you want is a
>> "transfer relay" or, in microwave parlance, a "baseball switch", or
>> for DC motors, a "reversing switch".? It's a DPDT set up to swap paths.
>>
>> THey're available surplus for moderate powers (and, I suppose high
>> powers), but they're designed so that you never inadvertently have
>> output from Radio A going into Radio B.
>
>
> here's a fairly beefy vacuum transfer switch.. I can't find a data
> sheet, but I believe it's rated for kilowatts.? what you'd also want to
> know is the isolation.? 60 dB isolation with a kW on one path would be 1
> mW on the other path, which probably won't blow up your receiver.
>
> https://mgs4u.com/product/rly-lc-01/
>
>
> fwiw the transco 700C70400 on the mgs4u website is only rated for 20W.?
> You see a lot of those and similar ones surplus.
>
> here's a test report from 1972 (back when Deep Space Network was still
> called Deep Space Instrumentation Facility) on a bunch of different models:
>
> https://ipnpr.jpl.nasa.gov/progress_report2/XI/XIW.PDF
>
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 19 Jul 2022 20:24:51 -0400
> From: "Joe Subich, W4TV" <lists@subich.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <f854d04f-98ac-d489-0514-56ae13fdc856@subich.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
> Jim,
>
> The question wasn't about a transfer switch ... it was about
> a stacking switch that would allow the antennas to be fed to
> separate rigs when not used as a stack.
>
> 73,
>
> ... Joe, W4TV
>
>> On 2022-07-19 8:16 PM, Lux, Jim wrote:
>>> On 7/19/22 4:26 PM, Lux, Jim wrote:
>>> On 7/19/22 3:04 PM, Joe Subich, W4TV wrote:
>>>>
>>>>
>>>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>>>>>
>>>>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>>>>> that will send the unselected antenna to another port?
>>>> MicroHAM stack Switch would do that for two or three antennas. AFAIK,
>>>> the product has been discontinued.
>>>>
>>>> I believe the Array Solutions Stack Match will do that *with* the
>>>> optional external relay.? However, since I don't use those products
>>>> I suggest contacting the manufacturer for details.
>>>>
>>>> 73,
>>>>
>>>> ?? ... Joe, W4TV
>>>>
>>>> On 2022-07-19 4:34 PM, Lee Hiers wrote:
>>>>> Hi all...
>>>>>
>>>>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>>>>> that
>>>>> will send the unselected antenna to another port?? As in: I'm using the
>>>>> high antenna on radio A, and that makes the low antenna available
>>>>> for use
>>>>> on Radio B.? And vice-versa.
>>>>>
>>>>> I envision two antenna connections and a stack output and an
>>>>> alternative
>>>>> output...something along those lines.
>>>>>
>>>>> I thought I'd seen a commercial product that did this, but I can't
>>>>> find it
>>>>> now.? I'm sure something could be rigged up using external relays
>>>>> (and I'd
>>>>> love to hear from anyone who's done that as well), but I would like to
>>>>> evaluate other options.
>>>>>
>>>>> Thanks,
>>>
>>>
>>>
>>> Some other things to think about are "port to port isolation" and
>>> "fail safe" .
>>>
>>> You want to structure the switch matrix (e.g. if using SPDT switches)
>>> so that the radios are always isolated from eachother.
>>>
>>>
>>> If all you have is 2 antennas and 2 radios, what you want is a
>>> "transfer relay" or, in microwave parlance, a "baseball switch", or
>>> for DC motors, a "reversing switch".? It's a DPDT set up to swap paths.
>>>
>>> THey're available surplus for moderate powers (and, I suppose high
>>> powers), but they're designed so that you never inadvertently have
>>> output from Radio A going into Radio B.
>>
>>
>> here's a fairly beefy vacuum transfer switch.. I can't find a data
>> sheet, but I believe it's rated for kilowatts.? what you'd also want to
>> know is the isolation.? 60 dB isolation with a kW on one path would be 1
>> mW on the other path, which probably won't blow up your receiver.
>>
>> https://mgs4u.com/product/rly-lc-01/
>>
>>
>> fwiw the transco 700C70400 on the mgs4u website is only rated for 20W.
>> You see a lot of those and similar ones surplus.
>>
>> here's a test report from 1972 (back when Deep Space Network was still
>> called Deep Space Instrumentation Facility) on a bunch of different models:
>>
>> https://ipnpr.jpl.nasa.gov/progress_report2/XI/XIW.PDF
>>
>> _______________________________________________
>>
>
>
>
> ------------------------------
>
> Message: 8
> Date: Tue, 19 Jul 2022 18:00:17 -0700
> From: "Lux, Jim" <jim@luxfamily.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <4957a286-4b76-4e04-907f-80d2ec98e47e@luxfamily.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>> On 7/19/22 5:24 PM, Joe Subich, W4TV wrote:
>>
>> Jim,
>>
>> The question wasn't about a transfer switch ... it was about
>> a stacking switch that would allow the antennas to be fed to
>> separate rigs when not used as a stack.
>>
>> 73,
>>
>> ?? ... Joe, W4TV
>
>
> That wasn't entirely clear from the question..
>
>
> Yeah, if you need Radio A connected to Antenna 1, or Antenna 2, or Both;
> and the same for Radio B.
>
>
> I'd do it with 2 SPDT relays, because it's "foul up proof".? The common
> terminal goes to the antenna, the two switched ports go to the radios,
> with a T.
>
> That way, no matter what state the relays are in (or if they get stuck),
> Radio A is never connected to Radio B.
>
>
> If you do it with a pair of 1xN switch made up of SPST switches, then
> you have the risk of a stuck relay (or incorrect switching signals)
> connecting two radios.? You could probably do it with a pair of 1x3
> switches, and be "one stuck relay safe", but you still have the "wrong
> switching configuration" failure mode - with DC coils and some diodes,
> and some small signal relays, you could probably work out something that
> is failsafe.??? Another scheme for safety (used in HV circuits) is
> grounding relays - you may wind up transmitting into a short, but at
> least the receiver doesn't blow up.
>
>
> The whole "how do I connect N radios to M antennas" and keep good enough
> isolation, be fail safe, etc. is an interesting problem, especially when
> you're trying to use inexpensive surplus.
>
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Tue, 19 Jul 2022 20:10:26 -0500
> From: Richard Thorne <rthorne@rthorne.net>
> To: Lee Hiers <lee.hiers@gmail.com>, towertalk
> <TowerTalk@contesting.com>
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <ac027ebe-154d-ebaa-2d2f-20137b15659f@rthorne.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> https://www.arraysolutions.com/antennas-switching/dual-feedline-option-so
>
> Rich - N5ZC
>
>> On 7/19/2022 3:34 PM, Lee Hiers wrote:
>> Hi all...
>>
>> Does anyone know of a commercial stack-matching box (for 2 antennas) that
>> will send the unselected antenna to another port? As in: I'm using the
>> high antenna on radio A, and that makes the low antenna available for use
>> on Radio B. And vice-versa.
>>
>> I envision two antenna connections and a stack output and an alternative
>> output...something along those lines.
>>
>> I thought I'd seen a commercial product that did this, but I can't find it
>> now. I'm sure something could be rigged up using external relays (and I'd
>> love to hear from anyone who's done that as well), but I would like to
>> evaluate other options.
>>
>> Thanks,
>>
>> Lee, AA4GA
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 10
> Date: Tue, 19 Jul 2022 23:40:18 -0400
> From: Lee Hiers <lee.hiers@gmail.com>
> To: Richard Thorne <rthorne@rthorne.net>
> Cc: towertalk <TowerTalk@contesting.com>
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID:
> <CAEEr=7O7jwWTQXErwwv7AjYYz5mhHJt-Z2g4YTT6B_+Zdh=CEQ@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
>> On Tue, Jul 19, 2022 at 9:10 PM Richard Thorne <rthorne@rthorne.net> wrote:
>>
>> https://www.arraysolutions.com/antennas-switching/dual-feedline-option-so
>
>
> Perfect, thanks N5ZC - that's simpler than what I'd envisioned doing in my
> mind and back-of-napkin scribbles.
>
> And I think the Microham product W4TV mentioned may be what I'd seen in the
> past, but it's only available now for monoband use, requiring the addition
> of a phasing line.
>
> Unsaid, but I would be using triband antennas and a SixPak.
>
> Thanks to all who chimed in!
>
> 73 de Lee, AA4GA
>
>
>
>> Rich - N5ZC
>>
>>> On 7/19/2022 3:34 PM, Lee Hiers wrote:
>>> Hi all...
>>>
>>> Does anyone know of a commercial stack-matching box (for 2 antennas) that
>>> will send the unselected antenna to another port? As in: I'm using the
>>> high antenna on radio A, and that makes the low antenna available for use
>>> on Radio B. And vice-versa.
>>>
>>> I envision two antenna connections and a stack output and an alternative
>>> output...something along those lines.
>>>
>>> I thought I'd seen a commercial product that did this, but I can't find
>> it
>>> now. I'm sure something could be rigged up using external relays (and
>> I'd
>>> love to hear from anyone who's done that as well), but I would like to
>>> evaluate other options.
>>>
>>> Thanks,
>>>
>>> Lee, AA4GA
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
> ------------------------------
>
> Message: 11
> Date: Wed, 20 Jul 2022 09:09:06 -0400
> From: "Joe Subich, W4TV" <lists@subich.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID: <a3d16fac-ac95-69d6-defb-1a1eff763cad@subich.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
>> And I think the Microham product W4TV mentioned may be what I'd seen
>> in the past, but it's only available now for monoband use, requiring
>> the addition of a phasing line.
> The microHAM Stack Switch is a multi-band product. The half-wave line
> is only necessary to enable out of phase operation for either the top
> or bottom pairs and, yes, out of phase is limited to monoband operation.
>
> 73,
>
> ... Joe, W4TV
>
>> On 2022-07-19 11:40 PM, Lee Hiers wrote:
>>> On Tue, Jul 19, 2022 at 9:10 PM Richard Thorne <rthorne@rthorne.net> wrote:
>>>
>>> https://www.arraysolutions.com/antennas-switching/dual-feedline-option-so
>>
>>
>> Perfect, thanks N5ZC - that's simpler than what I'd envisioned doing in my
>> mind and back-of-napkin scribbles.
>>
>> And I think the Microham product W4TV mentioned may be what I'd seen in the
>> past, but it's only available now for monoband use, requiring the addition
>> of a phasing line.
>>
>> Unsaid, but I would be using triband antennas and a SixPak.
>>
>> Thanks to all who chimed in!
>>
>> 73 de Lee, AA4GA
>>
>>
>>
>>> Rich - N5ZC
>>>
>>> On 7/19/2022 3:34 PM, Lee Hiers wrote:
>>>> Hi all...
>>>>
>>>> Does anyone know of a commercial stack-matching box (for 2 antennas) that
>>>> will send the unselected antenna to another port? As in: I'm using the
>>>> high antenna on radio A, and that makes the low antenna available for use
>>>> on Radio B. And vice-versa.
>>>>
>>>> I envision two antenna connections and a stack output and an alternative
>>>> output...something along those lines.
>>>>
>>>> I thought I'd seen a commercial product that did this, but I can't find
>>> it
>>>> now. I'm sure something could be rigged up using external relays (and
>>> I'd
>>>> love to hear from anyone who's done that as well), but I would like to
>>>> evaluate other options.
>>>>
>>>> Thanks,
>>>>
>>>> Lee, AA4GA
>
>
>
>
> ------------------------------
>
> Message: 12
> Date: Wed, 20 Jul 2022 09:26:01 -0400
> From: Lee Hiers <lee.hiers@gmail.com>
> Cc: towertalk <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Stack-matching
> Message-ID:
> <CAEEr=7OxmPoYSunrdbfhjjzqftUBiSnYh-377zBnvZVRNtC-ZQ@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Thanks for the clarification, Joe!
>
> 73 de AA4GA
>
>
>> On Wed, Jul 20, 2022 at 9:09 AM Joe Subich, W4TV <lists@subich.com> wrote:
>>
>>
>>> And I think the Microham product W4TV mentioned may be what I'd seen
>>> in the past, but it's only available now for monoband use, requiring
>>> the addition of a phasing line.
>> The microHAM Stack Switch is a multi-band product. The half-wave line
>> is only necessary to enable out of phase operation for either the top
>> or bottom pairs and, yes, out of phase is limited to monoband operation.
>>
>> 73,
>>
>> ... Joe, W4TV
>>
>>> On 2022-07-19 11:40 PM, Lee Hiers wrote:
>>> On Tue, Jul 19, 2022 at 9:10 PM Richard Thorne <rthorne@rthorne.net>
>> wrote:
>>>
>>>>
>> https://www.arraysolutions.com/antennas-switching/dual-feedline-option-so
>>>
>>>
>>> Perfect, thanks N5ZC - that's simpler than what I'd envisioned doing in
>> my
>>> mind and back-of-napkin scribbles.
>>>
>>> And I think the Microham product W4TV mentioned may be what I'd seen in
>> the
>>> past, but it's only available now for monoband use, requiring the
>> addition
>>> of a phasing line.
>>>
>>> Unsaid, but I would be using triband antennas and a SixPak.
>>>
>>> Thanks to all who chimed in!
>>>
>>> 73 de Lee, AA4GA
>>>
>>>
>>>
>>>> Rich - N5ZC
>>>>
>>>> On 7/19/2022 3:34 PM, Lee Hiers wrote:
>>>>> Hi all...
>>>>>
>>>>> Does anyone know of a commercial stack-matching box (for 2 antennas)
>> that
>>>>> will send the unselected antenna to another port? As in: I'm using the
>>>>> high antenna on radio A, and that makes the low antenna available for
>> use
>>>>> on Radio B. And vice-versa.
>>>>>
>>>>> I envision two antenna connections and a stack output and an
>> alternative
>>>>> output...something along those lines.
>>>>>
>>>>> I thought I'd seen a commercial product that did this, but I can't find
>>>> it
>>>>> now. I'm sure something could be rigged up using external relays (and
>>>> I'd
>>>>> love to hear from anyone who's done that as well), but I would like to
>>>>> evaluate other options.
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Lee, AA4GA
>>
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
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> ------------------------------
>
> End of TowerTalk Digest, Vol 235, Issue 18
> ******************************************
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