[WSWSS] Re: WSWSS digest, Vol 1 #403 - 2 msgs

Thu, 18 Sep 2003 20:02:14 -0400

my new e-mail adr is [email protected]

[email protected] wrote:

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> Today's Topics:
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>    1. Building a noise source/head (Scott Townley)
>    2. WSWSS Conference ([email protected])
>
> --__--__--
>
> Message: 1
> Date: Wed, 17 Sep 2003 06:15:59 -0700
> To: [email protected], [email protected],
>         [email protected]
> From: Scott Townley <[email protected]>
> Subject: [WSWSS] Building a noise source/head
>
> I have gathered a few articles on building your own noise
> source.  Hopefully someone on the list(s) have done that before!
> 1. The series diode configuration on the W1GHZ web pages looks simple
> enough...but there is no DC block anywhere.  Wouldn't that allow a little
> bit of the diode DC bias to appear at the noise source output?  I would
> think that's NG for GaAsFET preamp testing.
> 2. Bill Sabin wrote some up in QST (May '94) that are shunt configurations,
> and included a blocking capacitor.  But...noise sources are intended to be
> very broadband devices (decades) and the use of a *single* blocking cap
> seems to me to be quite bandlimiting, especially when you're aiming for the
> 5-10GHz range on the upper end.  When I was a wee lad I was taught to
> parallel several caps to make a broadband bias-T (e.g., 10pF, 500pF,
> ..01uF)...is that technique (or some variant) applicable here to what
> amounts to a broadband DC-block?
> 3. The noise diode manufacturer shows a very simple shunt configuration
> with a blocking capacitor, and the single-pole rolloff equation on the low
> end, but no word/guidance on dealing with blocking caps above
> self-resonance.  So back to the bias-T question in 2.
>
> Any other experiences or pointers would be appreciated.
>
> Scott Townley NX7U
> Gilbert, AZ  DM43di
> http://members.cox.net/nx7u
>
> --__--__--
>
> Message: 2
> To: [email protected]
> Date: Wed, 17 Sep 2003 15:31:00 -0700
> From: [email protected]
> Subject: [WSWSS] WSWSS Conference
>
> DON'T MISS IT!!!!!!
>
> The Western States Weak Signal Society
> 9th Annual VHF/UHF and Microwave Technical Conference
>
> Presenting:
> Technical seminars covering advanced Dxing
> and contest techniques on 6 meters and up
> Saturday October 11, 2003, 9 A.M.-all day
>
> At the Sheraton Cerritos Hotel Towne Center, 12725 Center Court Drive,
> Cerritos, CA 90703, (562) 809-1500
> Just off the 91 Fwy at Bloomfield, 2.5 miles East of the 605 Fwy. Go
> South on Bloomfield, turn left at Towne Center Drive, right on Center
> Court Drive. A special conference room rate of $85/night, single or
> double occupancy.
> Mention the conference and confirm your rate.  Reserve your room early;
> there are limited rooms at this rate.
>
> Technical Conference Registration
> ** $10.00 -includes yearly membership in the Western States Weak Signal
> Society
> ** Already a dues paid member? FREE ADMISSION.
> ** If not, sign up or renew. NOW!!!
> ** Use the easy e-mail method to sign up described below.
>
> Technical conference presenters:
> Ned Stearns, AA7A
> Pat Coker, N6RMJ
> Dave Glawson, WA6CGR
>
> Banquet
> Saturday Night Banquet, Speaker, awards presentations.
> The Banquet Speaker is Dave Bell, W6AQ
> $35.00 Pre-registration, choice of three entrees:
> #1 Prime Rib: Herb Rubbed Prime Rib, With Garlic Au Jus and Creamy
> Horseradish
> #2 Chicken: Chicken Breast Florentine, Tender Chicken Breast Stuffed with
> Spinach and Swiss Cheese, Lightly Dusted with Italian Herb, Parmesan
> Cheese and Served with Roasted Red Pepper Garlic Sauce
> #3 Salmon: Salmon Mediterranean, Grilled Salmon Filet topped with a
> flavorful mix of Olives, Capers and
> Sun Dried Tomatoes
>  $40.00 at the door on a space available basis, no choice of entree.
>
> Other activities:
> **     Western States Weak Signal Society Annual meeting
> **     Grand Prize drawing for a new ICOM IC-706 MKII G. Drawing tickets
> available.
> **     Other door prizes and drawing prizes.
> **     Car trunk and tail-gate swap
>
> More information found on the WSWSS web site: www.wswss.org .  Specific
> conference questions e-mail: [email protected] Or telephone: (714)891-5752.
> Membership questions and applications see web site or write: Steve
> Cooper, WSWSS, PO Box 5594, Sherman Oaks.
> CA 91413-5594
>
> ���������������������������������.
> To renew your membership or to become a member and/or to register for the
> banquet print out and use this Registration form.  Make checks payable to
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> David Peters, KI6FF
> 14291 Middletown Lane
> Westminster, CA 92683
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> Membership or renewal:   $10.00
> Second member at same address:   $5.00
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> Entr�e Choices:
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> Add all entrees ordered @ $35ea   Total __________________
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> Want to speed thing up?? running late?? You can arrange payment by PayPal
> or other means... Just e-mail David, KI6FF to arrange:  [email protected]
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> 73, see you at the conference. David, KI6FF
>
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