Re: [SPAM] [spectrumanalyzer] Re: Cavity filter - Easy Templates !!

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KD5SSJ
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Joined: Sat Apr 28, 2018 6:48 pm

Re: [SPAM] [spectrumanalyzer] Re: Cavity filter - Easy Templates !!

Post by KD5SSJ » Fri Dec 14, 2007 2:40 pm

Sam,



I'm not ignoring you. I got your last message and set it aside while I did

something else and well you know how that goes, minutes turn into hours and

then days and all to quickly weeks.



I working on several things, one of which involves floating point math on

the PIC. That has not been were the problem was but the conversion to serial

got me bogged down. I had the code given as an example and it seemed to work

for the 24bit routines and then I switched to the 32bit routines and fell in

a hole. I've understood that the problem was with negative numbers for a

couple of days but last night I finally narrowed it down to the sign of the

mantissa. I slept on it and think I have a simple fix. If that doesn't cause

some thing else not to work I think I've beat that one down or did it beat

me down.



I don't seem to have accomplished much but I've been putting some time in on

a variety of work and play projects.



The solder paste is actually be coming a steady stream of income, I shipped

> 100 syringes last month and on target to do the same this month. At that

rate I think that the Amateur Radio audience might saturate before too long

but I've started to tap in the ultra light aircraft market via a son-in-law.

These guys are building models that weigh An interesting side note on eMachineShop: They are set up somewhat

> like ExpressPCB, so you can design and order machined parts. A while

> ago I thought that would be worth checking out, so I designed a small

> plate with a couple of holes, just to get an idea of cost and timing.

> It came back with insane results: cost over $10,000 and 20 years

> manufacturing time. I never could figure out how to make it work.

>

> But the design software is nice.

>

> Sam W.

>

> --- In spectrumanalyzer@yahoogroups.com, "xjwmcx" wrote:

>>

>>

>> Hi Gopi,

>>

>> I have downloaded the eMachineShop software successfully, and it looks

>> quite useful. But I am unable to download your template file from this

>> site. It says I don't have permission to download. Have you set up the

>> file to allow downloads?

>>

>> Regards,

>>

>> Jim

>>

>>

>> --- In spectrumanalyzer@yahoogroups.com, "Y.Gopikrishna"

>> wrote:

>> >

>> > Gents,

>> >

>> > Between my previous mail to Cash and now , I found an excellent really

>> easy to use software thats free which enabled me to very quickly in

>> litrally 5 minutes draw the template for the bottom plate of the cavity

>> filter. The thing with this software is stuff just allings into position

>> taking the guess work out..

>> >

>> > Software link

>> >

>> > http://www.emachineshop.com/download/index.htm

>> >

>> > I have taken a picture of the print out that resulted with my calipers

>> making a measurement.. I have uploaded this and also the file for the

>> template ( you have to download the above software first ofcourse to

>> view it)

>> >

>> > Uploaded in folder "Cavity Filter Template Creation Software"

>> >

>> >

>> > PS : The hole for the hairpins are for a 0.085 cable..but they are at

>> the right distance away from the wall...

>> >

>> > Regards

>> > Gopi

>> >

>> >

>> > ----- Original Message ----

>> > From: Y.Gopikrishna hi_gopi@

>> > To: spectrumanalyzer@yahoogroups.com

>> > Sent: Friday, December 7, 2007 11:56:29 PM

>> > Subject: Re: [spectrumanalyzer] Boards and Kits

>> >

>> > Hey Cash,

>> >

>> > Any cance I can get my hands on your template for the the filter...

>> Ive started building one on my own and its a tedius job...

>> >

>> > Gopi

>> >

>> >

>> > ----- Original Message ----

>> > From: KD5SSJ KD5SSJ@zianet. com>

>> > To: spectrumanalyzer@ yahoogroups. com

>> > Sent: Tuesday, December 4, 2007 2:51:58 PM

>> > Subject: [spectrumanalyzer] Boards and Kits

>> >

>> >

>> > Hi Group,

>> >

>> > I just want to let every body know that I'm following the discussions

>> on the BOM and that it is my intention to offer the boards and kit of

>> parts for individual SLIM boards and complete SSA when Scotty thinks it

>> time to say go. I have Scotty's SLIM modules already laid out for mass

>> board purchase.

>> >

>> > Cash Olsen KD5SSJ

>> >

>> > Kits to build Scotty's Spectrum Analyzer http://www.zianet. com/erg

>> > Scotty's Spectrum Analyzer website http://www.cpu- net.com/host/

>> wsprowls

>> > Sam Wetterlin's website http://www.wetterli n.org/sam/

>> > Yahoo Builders Group http://groups. yahoo.com/ group/spectruman

>> alyzer/

>> >

>> >

>> >

>> >

>> >

>> >

>> > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try

>> it now.

>> >

>> >

>> >

>> >

>>

> ________________________________________________________________________\

>> ____________

>> > Be a better friend, newshound, and

>> > know-it-all with Yahoo! Mobile. Try it now.

>> http://mobile.yahoo.com/;_ylt=Ahu06i62s ... o8Wcj9tAcJ

>> >

>>

>

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

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