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Re: Topband: 160 Power

To: "John Harden, D.M.D." <jhdmd@bellsouth.net>
Subject: Re: Topband: 160 Power
From: vu2gsm via Topband <topband@contesting.com>
Reply-to: vu2gsm <vu2gsm@yahoo.com>
Date: Tue, 21 Mar 2017 07:14:06 +0530
List-post: <topband@contesting.com">mailto:topband@contesting.com>
I fully agree with John. I have been running 100 watts in to a dipole on 160 
and all I am raising is electricity bill from years. Unless you have decent 
power on TB no use warming the chair.
73
vu2gsm
Kanti


> On Mar 21, 2017, at 05:42, John Harden, D.M.D. <jhdmd@bellsouth.net> wrote:
> 
> If you want to work the rare ones on Top Band low power is pointless... You 
> are simply banging your head against the wall... It takes maximum power, 
> great receiving antennas and a good transmitting antenna. I really starting 
> hearing well when I began using a rotary FLAG at 95 feet in DIVERSITY RECEIVE 
> with a Hi-Z 8 Array...
> 
> 73,
> 
> 
> John, W4NU
> 
> K4JAG (1959 to 1998)
> 
> 
>> On 3/20/2017 12:25 PM, rick darwicki via Topband wrote:
>> In contests I call a lot of guys barefoot first and kick on the amp as 
>> needed. Problem is usually a guy running full power can be heard out here 
>> but has an S-8 noise level and can't hear 100W..Yes you can work a lot of DX 
>> with low power, but as an ex-QRP club member I learned life if too short, 9 
>> to go for DXCC on 160 and sweating it.
>> 5U and TU can't hear me thru the pile up but I'll bet they can copy if there 
>> was nobody else on.
>> Tried JT65 and it seems CW work also work when it works.Bottom line is you 
>> typically need power on the low bands to overcome the other guys noise. Rick 
>> N6PE======================================================================
>> There are more planes in the ocean than submarines in the sky
>> 
>> 
>> 
>> 
>>       From: "topband-request@contesting.com" <topband-request@contesting.com>
>>  To: topband@contesting.com
>>  Sent: Monday, March 20, 2017 9:11 AM
>>  Subject: Topband Digest, Vol 171, Issue 17
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>> 
>> Today's Topics:
>> 
>>   1. Digital modes on TB and power required (Jim Jim)
>>   2. Re: Digital modes on TB and power required (wb6rse1@mac.com)
>>   3. Re: Digital modes on TB and power required (HAROLD SMITH JR)
>>   4. Re: Digital modes on TB and power required (Mike Waters)
>>   5. Re: JT65 Power and bandwidth (Rob Atkinson)
>> 
>> 
>> ----------------------------------------------------------------------
>> 
>> Message: 1
>> Date: Sun, 19 Mar 2017 21:14:12 -0400 (EDT)
>> From: Jim Jim <wa3mej@comcast.net>
>> To: List-Topband <topband@contesting.com>
>> Subject: Topband: Digital modes on TB and power required
>> Message-ID: <1176951029.186017.1489972452731@connect.xfinity.com>
>> Content-Type: text/plain; charset=UTF-8
>> 
>> Guys,
>> 
>> First of all in many cases the reason we need really high power on any mode 
>> is because other hams on the band are using it and they cover us up... so it 
>> is mine is bigger than yours.  Now to be fair that is not always the case I 
>> know but it happens far too much.  Since we are in the years of the bottom 
>> of the solar cycle we actually may need more power.  Also you can not 
>> compare doing meteor scatter or EME work with HF work.  There you absolutely 
>> need power unless you have stacked 18 element beams or something.  But I 
>> have seen very very few instances when 50 watts wont get the job done EVEN 
>> on 160M.  and NO I don't run my RX with a wide open front end I have an IC 
>> 7300 and I trim my RX and TX filters to a reasonable width based on the mode 
>> I am running.  Common sense (and good engineering principals) teach you if 
>> you cut the RX bandwidth the signal goes up in strength. You have only to 
>> try that with CW to learn that.    and for those of you that don't 
>> understand the princ
 i
> p
>>  al of RX front end overload try having a neighbor 4 miles away as the crow 
>> files who is trying to call the same DX you are wanting to work he can be 
>> half a kHz away and still give you problems even with a good RX. Now you 
>> guys with the really big antennas can mitigate some of this but us little 
>> pistols have only once choice ... wait until you neighbor is done.  And to 
>> be neighborly both my neighbor and I do just that.  Something to also 
>> consider when you run any digital mode even RTTY and you do it through a 
>> sound card you should not be drawing ANY.. not even a little ALC and if you 
>> do you not only will make it hard for others to copy you but you could 
>> easily cause all kinds of splatter on the band, you have only to listen to 
>> some to the signal on 40 and 20 meters to see this.
>> 
>> I am not saying any of this to flame or inflame anyone it is simply the way 
>> it is. High power is RARELY necessary on the lower bands.
>> 
>> 
>> Doubt me?  Set your transceiver up on WSPR and set it to 20w  and find out.  
>> When TB was open I was heard all over the world with that power .. and yes 
>> even VK.  If all of this is not convincing then follow the FCC rules .. use 
>> only the power necessary to do that job
>> 
>> 
>> Oh by the way many of these digital modes are high duty cycle and could do 
>> damage to your transceiver.
>> 
>> 
>> Jim
>> 
>> 
>> 
>> On the higher bands, low power generally gets the job done. But digital
>> folks on 160 need to rethink a few things. Ideally, we should ALL just bump
>> our output up to 100 watts. But that's just not gonna happen.  ?
>> 
>> I don't have the time right now to add more, but I hope this thread nets
>> some useful suggestions to minimize QRN in the 160m digital portion.
>> 
>> 73, Mike
>> www.w0btu.com http://www.w0btu.com/
>> 
>> ------------------------------
>> 
>> Message: 2
>> Date: Sun, 19 Mar 2017 18:42:18 -0700
>> From: wb6rse1@mac.com
>> To: Top Band List List <topband@contesting.com>
>> Subject: Re: Topband: Digital modes on TB and power required
>> Message-ID: <C9E69442-3141-4A38-A05C-2BD29E827C3C@mac.com>
>> Content-Type: text/plain;    charset=us-ascii
>> 
>> Try that on 160 from the left coast to EU and AF and you might get very a 
>> different perspective.
>> 
>> 73 - Steve WB6RSE
>> 
>> 
>> 
>> On Mar 19, 2017, at 6:14 PM, Jim Jim <wa3mej@comcast.net> wrote:
>> 
>> But I have seen very very few instances when 50 watts wont get the job done 
>> EVEN on 160M.
>> 
>> High power is RARELY necessary on the lower bands.
>> 
>> ------------------------------
>> 
>> Message: 3
>> Date: Mon, 20 Mar 2017 02:31:32 +0000 (UTC)
>> From: HAROLD SMITH JR <w0rihps@sbcglobal.net>
>> To: "wb6rse1@mac.com" <wb6rse1@mac.com>,     Top Band List List
>>     <topband@contesting.com>
>> Subject: Re: Topband: Digital modes on TB and power required
>> Message-ID: <2090077556.3483773.1489977092492@mail.yahoo.com>
>> Content-Type: text/plain; charset=UTF-8
>> 
>> Try that from the mid-west and you will have to wait, wait and wait and then 
>> wait some more.Been there, done 
>> that......................................................................................................................................................
>> 
>> 
>> Try that on 160 from the left coast to EU and AF and you might get very a 
>> different perspective.
>> 
>> 73 - Steve WB6RSE
>> 
>> 
>> 
>> On Mar 19, 2017, at 6:14 PM, Jim Jim <wa3mej@comcast.net> wrote:
>> 
>> But I have seen very very few instances when 50 watts wont get the job done 
>> EVEN on 160M.
>> 
>> High power is RARELY necessary on the lower bands.
>> _________________
>> Topband Reflector Archives - http://www.contesting.com/_topband
>> 
>> 
>>   
>> ------------------------------
>> 
>> Message: 4
>> Date: Sun, 19 Mar 2017 22:13:50 -0500
>> From: Mike Waters <mikewate@gmail.com>
>> To: topband <topband@contesting.com>
>> Subject: Re: Topband: Digital modes on TB and power required
>> Message-ID:
>>     <CA+FxYXhTu4z1Njc9DnkcJUSfwfbA=tJoYjMSzret1XTx5OSeUA@mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>> 
>>> On Sun, Mar 19, 2017 at 8:42 PM, <wb6rse1@mac.com> wrote:
>>> 
>>> Try that on 160 from the left coast to EU and AF and you might get very a
>>> different perspective.
>>> 
>>> 73 - Steve WB6RSE
>> On Sun, Mar 19, 2017 at 9:31 PM, HAROLD SMITH JR <w0rihps@sbcglobal.net>
>> wrote:
>> 
>>> Try that from the mid-west and you will have to wait, wait and wait and
>>> then wait some more. Been there, done that................................
>> Well said, Steve and Harold! That's usually true even if you have a super
>> station.
>> 
>> Maybe Jim has a better antenna system? Or a better location? We're all
>> ears, maybe we'll learn something new.
>> 
>> 73. Mike
>> www.w0btu.com
>> 
>> 
>> 
>>> On Mar 19, 2017, at 6:14 PM, Jim Jim <wa3mej@comcast.net> wrote:
>>> 
>>> But I have seen very very few instances when 50 watts wont get the job
>>> done EVEN on 160M.
>>> 
>>> High power is RARELY necessary on the lower bands.
>> 
>> ------------------------------
>> 
>> Message: 5
>> Date: Mon, 20 Mar 2017 08:57:12 -0500
>> From: Rob Atkinson <ranchorobbo@gmail.com>
>> To: topband@contesting.com
>> Subject: Re: Topband: JT65 Power and bandwidth
>> Message-ID:
>>     <CALWD7Z5=OAo7vCZsMuEwgJ7J0nPxQ8tZidzUzMy1rSfhBS2zqQ@mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>> 
>>> FCC regs say you should use the minimum power necessary to establish
>>> communications.
>> Um, no.  Here's what it actually says:
>> 
>> 
>> ?97.313  Transmitter power standards.
>> 
>> (a) An amateur station must use the minimum transmitter power
>> necessary to carry out the desired communications.
>> 
>> 
>> Your "desired communications" are not my "desired communications."  I
>> desire solid armchair copy.  On 160 that usually means QRO.
>> 
>> 73
>> 
>> Rob
>> K5UJ
>> 
>> 
>> ------------------------------
>> 
>> Subject: Digest Footer
>> 
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>> ------------------------------
>> 
>> End of Topband Digest, Vol 171, Issue 17
>> ****************************************
>> 
>> 
>>    _________________
>> Topband Reflector Archives - http://www.contesting.com/_topband
> 
> 
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