I use the 2m5wl as well so no experience with the 17B2. You should be able
to stack them 12 to 14 feet apart and they will play well I would think.
Lee K4UVA
-----Original Message-----
From: vhfcontesting-bounces@contesting.com
[mailto:vhfcontesting-bounces@contesting.com]On Behalf Of
vhfcontesting-request@contesting.com
Sent: Thursday, March 20, 2008 11:00 AM
To: vhfcontesting@contesting.com
Subject: VHFcontesting Digest, Vol 63, Issue 18
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Today's Topics:
1. FW: Sherwood Engineering Presentation on Roofing Filters, IMD
& Receiver Performance (Chet, N8RA)
2. stacking 17B2's (Todd Dravland-WD0T)
3. Re: stacking 17B2's (Robert Cumming)
----------------------------------------------------------------------
Message: 1
Date: Wed, 19 Mar 2008 16:13:39 -0400
From: "Chet, N8RA" <chetsubaccount@snet.net>
Subject: [VHFcontesting] FW: Sherwood Engineering Presentation on
Roofing Filters, IMD & Receiver Performance
To: <vhfcontesting@contesting.com>
Message-ID: <004401c889fd$b88a9440$0202a8c0@pd2800>
Content-Type: text/plain; charset="US-ASCII"
Rob Sherwood has recently posted a new presentation on his website called
"Roofing Filters, Transmitted IMD & Receiver Performance" in PowerPoint and
PDF formats. Also posted is an MP3 audio file. Play the audio and follow
along with the PPT or PDF. You will need a good hour or so to go thru it. At
the end of the presentation someone asked about AGC and he talks for another
30 minutes about AGC in modern rigs. This was presented to the Boulder,
Colorado Amateur Radio Club in February, and it is found at
http://www.sherweng.com/ .
I think it is outstanding !
These issues are certainly important for HF contesting, but many of them
even more so at VHF/UHF where we often have other gain stages ahead of the
"IF radio" that further reduce the numbers.
If a radio of interest is not in the charts, you may be able to find its
data on the ARRL website of product reviews and put it on the chart
yourself.
73
Chet, N8RA
------------------------------
Message: 2
Date: Wed, 19 Mar 2008 16:59:15 -0500
From: "Todd Dravland-WD0T" <wd0t@mncomm.com>
Subject: [VHFcontesting] stacking 17B2's
To: <vhfcontesting@contesting.com>
Message-ID: <344F1B7302F64560BA1AA8470B5337AA@ToddDPC>
Content-Type: text/plain; charset="iso-8859-1"
I have a single 17B2 and am looking to stack another with it, my question is
two fold:
1) What experiences do you have in general, good or bad, with the 17B2's
2) What is the recommended stacking distance for best pattern.
Thanks, 73 Todd WD0T
------------------------------
Message: 3
Date: Wed, 19 Mar 2008 23:14:39 -0400
From: Robert Cumming <w2bzy@cfl.rr.com>
Subject: Re: [VHFcontesting] stacking 17B2's
To: "Todd Dravland-WD0T"
<wd0t@mncomm.com>,<vhfcontesting@contesting.com>
Message-ID:
<20080320031052.WTRA25331.cdptpa-omta05.mail.rr.com@w2bzy.cfl.rr.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Todd
Good info on a whole range of Yagis at:
http://www.newsvhf.com/2m-yagis.html
Personally I use a pair of M2 2m5WLs at
14' apart (I have a 6M7JHV and a KT34M2 in between them - optimal -
probably not but they all sing well)
VRY 73
Bob Cumming
W2BZY
QRV 160M - 9CM + 3CM (5760 next)
from EL98hr
At 05:59 PM 3/19/2008, Todd Dravland-WD0T wrote:
>I have a single 17B2 and am looking to stack another with it, my
>question is two fold:
>
>1) What experiences do you have in general, good or bad, with the 17B2's
>
>2) What is the recommended stacking distance for best pattern.
>
> Thanks, 73 Todd WD0T
>_______________________________________________
>VHFcontesting mailing list
>VHFcontesting@contesting.com
>http://lists.contesting.com/mailman/listinfo/vhfcontesting
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