Re: [Elecraft] Re: [K2] XV50 vs FT817?

2009-09-11 Thread Peter Wollan
Thanks to all for the feedback, comparing these two VHF solutions.
Unfortunately, it's still not an obvious decision.  I'm inclined to go
with the XV-50, because I need another kit to build ...

   Peter N8MHD
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[Elecraft] Re: [K2] XV50 vs FT817?

2009-09-11 Thread Johnny Siu
May be I would like to add another point for the setting up of XV50+K2.

It is NOT quite necessary to get the KIO2 and KV60 transverter interface to 
work K2 + XV50.  XV50 is so well designed that it can work with a wide variety 
of combinations.  To be marketable product,  the entire XV series can work with 
variety of rigs and set-up combination.

K2 can TX at a stable low power of about 1 watt (actually well lower than that 
in my own experience).  All you need is a simple Keying Kit from N0SS to PTT 
the transverter.

Of course, if you really need to go for 60m or computer control, then you will 
need the KIO2 or KV60.  Otherwise, you can save some $ for your K2 + XV50 set 
up.

AsI mentioned in the past in this email reflector, when you add up all the 
preferred options for either K2 or K3, the overall bill could be quite 
handsome.  Clearly, you are given the full liberty to make your own choices of 
options and reduce your bill accordingly.

FT817, is really another kind of animal.  It is handy, multifunction and 
entertaining. Of course, it is much cheaper - only about US$570 in Hong Kong 
for a MF to UHF multiband all mode rig.  When the band is dead, you even listen 
to FM broadcast for amusement.

While I use K2 for HF field day, I would prefer using FT817 for ARES or local 
community social services.

Just my 2 cents opinion.

73

Johnny Siu VR2XMC





寄件人﹕ James Duffey jamesduf...@comcast.net
收件人 elecraft@mailman.qth.net
副本(CC) James Duffey jamesduf...@comcast.net
傳送日期﹕ 2009 年 9月 12 日 星期六 上午 9:47:58
主題: Re: [Elecraft] [K2] XV50 vs FT817?

Peter - The XV-50 and a K2 is not really a cost effective way of  
getting on VHF. Besides the KIO2, you will also need either the K60XV  
or the K160RX. And if you want SSB, you will need the KSB2. If you  
already have the K2, the cost may be reasonable given the good  
performance achieved, but if you are starting from scratch, the cost  
of a K2, the options required for transverter operation, and the XV50  
are pretty close to a 10 Watt K3, and the K3 has a lot better  
performance. The K2 does offer a very nice transverter interface, but  
going that way is fairly expensive.

The FT-817 is a different beast. The receiver performance under  
crowded band conditions is not great and you really need to add the  
narrow CW filter to bring it up to snuff on CW receive. That said, you  
get a lot of bang for your buck with the 817, and if you want to  
contest at VHF, two meters is almost essential. You will find that  
everyone you work in a VHF contest will ask you if you have any other  
bands. You will with the FT-817, you won't with the K2/XV50. In the  
June contest, with Es, you can get by with 6M only, but the rest of  
the year you will probably be better off with 2M as the main band.

As to QRP at VHF, there is more to be said on that, which I will in  
another post. - De. Megacycle KK6MC/5
--
KK6MC
James Duffey
Cedar Crest NM





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[Elecraft] Re: [K2] XV50 vs FT817?

2009-09-10 Thread Johnny Siu
Hello Tim,

QRP did work sometimes with this magic band.  In the past cycle, I used 5 watts 
and made contact between Oman and Hong Kong.  Also 10 watts between Brazil and 
Hong Kong.  Of course, QRP will need more patience and skill.

I never tried K2+ XV50 on field days because it is too convenience to be 
carried.  On the other hand, I used K2 only for HF during field day.

cheers,

Johnny VR2XMC





寄件人﹕ Tim O'Rourke w...@earthlink.net
收件人 elecraft@mailman.qth.net
傳送日期﹕ 2009 年 9月 11 日 星期五 上午 12:16:37
主題: Re: [Elecraft] [K2] XV50 vs FT817?

I would strongly disagree on several points!
I have run 6 meter QRP for years and they do not call it the magic band for 
nothing.
I have 50+ countries on 6 meter QRP at last count.
I run QRP from QTH as well as mountain tops and when conditions are right you 
do not need more than a few watts for SSB or CW and yes most VHF contest have 
CW activity although not as much as I would like.
As for the virtues of KXV verses the 817 I use both but the 817 is my mtn top 
rig even with the higher current drain I like one rig for all bands, I use a 
220 5 watt xverter fron a QST article with the 817 also. The KXV's are more 
sensitive and have a little more output and I use them at QTH. I like the ease 
of switching bands and the offsets for keeping frequency easy to see.
Personaly I just do not like taking my K2 and transverters mountain topping. 
Tim W4YN


Subject: Re: [Elecraft] [K2] XV50 vs FT817?
To: Peter Wollan peter.wol...@gmail.com,
    Elecraft@mailman.qth.net
Message-ID: bd1e3cea7d744b80afc4ccf708440...@billslaptop
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
    reply-type=original

Peter,

There are no VHF CW contests, per se. There is usually some 50 MHz CW activity 
in the June ARRL VHF QSO party and the July CQ WW VHF contest, but this is 
probably about 10% or less of the activity level on SSB. DX chasing, on the 
other hand, is typically more fruitful on CW. But chasing 6 meter DX with QRP 
is 
an exercise in frustration. DX signal levels are simply too weak for QRP.

For 6m SSB, you will want at least 100W output into a decent directional 
antenna 
to be competitive in the Low Power category of ARRL VHF (up to 200W). There are 
no power categories in the CQ WW, so you're competing directly against the KWs 
in this one.

Bottom line -- Outside of extremely strong 50 MHz sporadic-E openings, VHF 
and 
QRP don't really go together that well, though some guys do seem to enjoy the 
challenge. For me, life is too short for 6m QRP. :-)  I enjoy making QSOs too 
much, I guess.

Good luck,
Bill W5WVO


Peter Wollan wrote:
 An XV50 + KIO2, adding on to a QRP K2, is getting within shouting
 distance of the cost of an FT817.  Could someone comment on the
 relative merits, for use as a first multimode VHF rig?  My guess is
 that the XV50 is better, but does less.  In addition to just exploring
 on CW and SSB, I'd want to participate in some VHF CW contests.

    Peter N8MHD

Tim O'Rourke 
w...@arrl.net
Low Power Amateur Radio Rocks 
Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
NHRA Life Member
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[Elecraft] Re: [K2] XV50 vs FT817?

2009-09-09 Thread Johnny Siu
Hello Peter,

XV50 + K2 is a high performer and FT817 is in no way comparable to this 
combination.  However, if you just look for convenience, FT817 is handy and 
will give you the flexibility of multi-band and mult-mode.

I used FT817 in the old days but eventually gave it up and replace it with my 
K2.  In a contest situation, FT817 will receive everything but you cannot 
select what you really want to hear.  K2 is definitely a go for contest when 
compared with FT817.

Of course, FT817 is much cheaper.

cheers,

Johnny VR2XMC





寄件人﹕ Peter Wollan peter.wol...@gmail.com
收件人 Elecraft@mailman.qth.net
傳送日期﹕ 2009 年 9月 10 日 星期四 上午 3:14:52
主題: [Elecraft] [K2] XV50 vs FT817?

An XV50 + KIO2, adding on to a QRP K2, is getting within shouting
distance of the cost of an FT817.  Could someone comment on the
relative merits, for use as a first multimode VHF rig?  My guess is
that the XV50 is better, but does less.  In addition to just exploring
on CW and SSB, I'd want to participate in some VHF CW contests.

    Peter N8MHD
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