[50mhz] ...or you could try having FUN...

Chris Boone cboone at earthlink.net
Tue Jun 24 12:56:49 EDT 2014


Most yagis will cover up to 50.5 or above with little loss of performance BUT FM is vertical not Horiz....using FM on Horizontal yagis will result in a 20db loss while trying to work crossmode....of course during skip conditions, the polarization can rotate making this a moot point....

For H pol FM use, 50.50 will not task antennas, etc....and is a good viable choice...

cramming FM into a weak signal band where there is enough crowding already is not good engineering or amateur operating practice....lets keep FM at 50.5 and above...weak signal modes need what little bandwidth they can get...


As for REAL antennas, try a DB DB201 or equiv......they take lightning shots and keep on going!! A Par can be easily blown by 150w PEP!!! I owned two...and was not impressed.....poor construction for the price...the matching "balun" was so cheaply done using double side PC Board for caps......sad..

Chris
WB5ITT

-----Original Message-----
>From: "n8ofs at mjbrowns.com" <n8ofs at mjbrowns.com>
>Sent: Jun 24, 2014 10:32 AM
>To: 50mhz at mailman.qth.net
>Subject: Re: [50mhz] ...or you could try having FUN...
>
>> In a band that is 4 MHz wide, why in the world would anyone propose using
>> FM within 200 KHz of a weak signal mode?
>>
>Because high gain stacked yagis are ONLY 200KHz wide, if that...
>
>> Keep FM above 50.500 and RTTY above 50.290. There is more than enough
>> spectrum available for almost any mode, no reason to pack them together
>> like HF.
>
>Sure there is, high gain antennas = low bandwidth...  And a Tuner on 6M
>would be so lossy, you wouldn't get across the street, or your precious
>amplifier would blow up...
>
>You could always try real antennas like 'The Dominator' and the PAR OA-50,
>but then M2 would be outta business if peeps used real antenna's with real
>bandwidth...
>
>> Isn't 3.5 MHz enough for FM?
>>
>Nope...
>
>And people wonder why I spend most of my time in the 10M FM Simplex
>29.1-29.5 Band...  ALthough I always monitor 52.525 on the 6M GE MSTR-II
>with matching GE Paging Amp and UHF Remote to my HT...
>
>> Danny NG9R




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