Re: LF: RE: Simple transverter for 472kHz

[N1BUG <paul@n1bug.com>]

Of course it could be the transceiver drifting, but curiously all I
have been aware of so far moved in the same direction and
approximately the same amount... who knows.

Paul


On 07/06/2018 06:09 PM, N1BUG wrote:
> My only comment is that the ones I have heard seem to consistently
> drift 1 to 2 Hz during a 2 minute WSPR transmission. So if you
> wanted to use one for something like slow DFCW on LF, you would
> probably have to do some work to stabilize it.
> 
> Paul
> 
> 
> On 07/06/2018 05:48 PM, Andy Talbot wrote:
>> At that price, and that PA efficiency (15 amps at 13.8V for 50W out
>> - very low) you'd have thought they could have dual-banded it,
>> 137kHz and 475kHz
>> A broadband linear PA, 100 - 500kHz is hardly rocket science
>>
>> Andy
>> www.g4jnt.com <http://www.g4jnt.com>
>>
>>
>> On 6 July 2018 at 22:15, M0FMT <peteg8fmt@gmail.com
>> <mailto:peteg8fmt@gmail.com>> wrote:
>>
>>     In the UK both the National Gov TAX and the Local Gov TAX makes
>>     sure  the concept of Disposable Cash  cannot happen.
>>
>>     73 petefmt
>>
>>     On Thu, Feb 8, 2018 at 2:12 PM, John Langridge <kb5njd@gmail.com
>>     <mailto:kb5njd@gmail.com>> wrote:
>>
>>         >Ouch!  $660 US dollars plus shipping - that is a /lot/!
>>
>>         Its a very solid unit, a true transverter, 50w out
>>         continuous with 90-100w intermittent duty with increased PA
>>         voltage and a receive section that is like no other.  The
>>         roofing filters make a huge difference and it has made the
>>         difference between hearing someone and not on many occasions.
>>
>>         I highly recommend if you have some disposable cash...
>>
>>         73!
>>
>>         John KB5NJD..
>>
>>
>>
>>
>>         On Thu, Feb 8, 2018 at 7:53 AM, Roger Lapthorn
>>         <rogerlapthorn@gmail.com <mailto:rogerlapthorn@gmail.com>>
>>         wrote:
>>
>>             Ouch!  $660 US dollars plus shipping - that is a /lot/!
>>
>>             On 8 February 2018 at 13:19, Clemens Paul <cpaul@gmx.net
>>             <mailto:cpaul@gmx.net>> wrote:
>>
>>                 >If you want a simple way to get started on 472kHz
>>                 maybe my
>>                 >transverter can help? This appeared in QST and in
>>                 the book "LF Today".
>>
>>                 Here is a ready to go transverter from an Australian
>>                 dealer.
>>                 http://www.monitorsensors.com/ham-radio/630m-transverter
>>                 <http://www.monitorsensors.com/ham-radio/630m-transverter>
>>                 Not cheap,though.
>>                 See also
>>                 http://www.monitorsensors.com/support/news/longest-630m-qso
>>                 <http://www.monitorsensors.com/support/news/longest-630m-qso>
>>
>>                 73
>>                 Clemens
>>                 DL4RAJ