Date   
Re: Antuino - the antenna analyzer

 

Must be following this group!

Raj

At 29-12-18, you wrote:
The SMD AD8307 was selling for two dollars on mouser, then suddenly upped the price.Â

- f

On Sat, Dec 29, 2018 at 11:54 AM Jerry Gaffke via Groups.Io <jgaffke=yahoo.com@groups.io > wrote:
Tacking an AD8307 into a uBitx between the 12mhz crystal filter and the demodulator
could make it useful as a spectrum analyzer. Â
Given the better crystal filter and the higher first IF of the uBitx,
should be a better choice than an Antuino.
Though may not fit into a cubesat.

The AD8307 is $13 each up on Mouser.
Ebay sellers have them at about $0.30 each.
The ebay parts reportedly work well enough, but may be a bit out of spec
with regard to calibration.
 Â
Jerry

On Fri, Dec 28, 2018 at 09:46 PM, Jerry Gaffke wrote:
I was assuming the Antuino would have a set of front end filters for each region of interest.
Though the 25mhz IF is kind of low for this to be convenient.

Re: Volume not working and high pitch squeal on bitx40

 

Put a resistor of any value between 1-10K in series with center lead of volume control
and see if that stops it.

Raj

At 29-12-18, you wrote:
Hello, I am having problems with my bitx40, whenever I listen in there is a very high pitch squeal, and you can't hear actual radio, and if you touch the potentiometer, other sounds can be heard. I have tried to resolve the connection, but I still have the problem.

Any help would be appreciated.

Re: bitx40 for sale

terry hughes
 

sold

ubitx microphone

terry hughes
 

i have a headset which was sold on ebay for use with a mobile phone.

phone is about 35 ohms and mike is about 4 kilohms

will this work with a ubitx

terry gm4dso

Re: Volume not working and high pitch squeal on bitx40

_Dave_ K0MBT
 

I just went through that on a ubix
It was a connector that was loose on the audio side of things. The previous owner said it was fried and was almost given to me....

I would go through the wires and give each one a flick.

Re: uBITXv4 for sale #ubitx

 

Yes, RADIO is SOLD!
Thanks,
Jim

Re: ubitx microphone

iz oos
 

What is the sensitivity for your Mike? Is it an electret?


Il 29/dic/2018 12:41, "terry hughes via Groups.Io" <terryhugheskirkcudbright=yahoo.co.uk@groups.io> ha scritto:
i have a headset which was sold on ebay for use with a mobile phone.

phone is about 35 ohms and mike is about 4 kilohms

will this work with a ubitx

terry gm4dso

Re: What to do when The Ultimate Short happens?

Jack, W8TEE
 

We all have to face this reality at some point, but I'm sure George (W9EVT) and his XYL have given it considerable thought. I know my XYL and family would not have a clue what to do with the "stuff" I've accumulated over the past 65 years. For that reason, my solution was to put in my will that everything in my "radio room" goes to my amateur radio club. If they don't want it, at least they will know how to dispose of it in a way that yields a tax write-off for my heirs and places some funds in the club's coffers.

As unpleasant as it is, we all need to act on its inevitability to the advantage of those we leave behind.

Jack, W8TEE

On Saturday, December 29, 2018, 12:11:12 AM EST, Bob Lunsford via Groups.Io <nocrud222@...> wrote:


And if it were to become by possibly various way a radio museum
or the items were to be a radio museum?

I wonder too if there is not someone who would want to be the
owner of such a collection in its entirety and had the wherewithal
to make it happen. It seems somehow undesirable that there
would be a break-up of such a collection. In many ways, it IS
amateur radio history.

My imagination working here and I do not mean to be morbid about it.

Bob — KK5R

--------------------------------------------
On Fri, 12/28/18, K5ESS <k5ess.nothdurft@...> wrote:

I apologize if this is a bit morbid, but the mother of all estate sales on Ebay looms in the future.

Mike

K5ESS



From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Friday, December 28, 2018 9:22 PM
Subject: Re: [BITX20] uBITXv4 for sale #ubitx



But wait...  There's more!

He's an equal opportunity collector.
I saw my long lost piece-o-crap Hallicrafters S120 in there,
about 10 down from Jack's photo, top left.
Also the ARC-5 receiver I used while in college.

Look hard enough at those photos and you will find every piece
of store-bought communications gear you ever touched.

Jerry


Re: What to do when The Ultimate Short happens?

Daniel Conklin
 

Good points, Jack.
73, Dan  W2DLC

W9EVT

John
 

He's made a good start on a collection :-)

John K5MO

Re: What to do when The Ultimate Short happens?

MVS Sarma
 

Nice approach Jack. This never stuck to me even at my 73.
I shall follow your advise.
regards
sarma
vu3zmv


On Sat, Dec 29, 2018 at 8:18 PM Daniel Conklin <danconklin2@...> wrote:
Good points, Jack.
73, Dan  W2DLC

Re: What to do when The Ultimate Short happens?

Mark M
 

I just hope they get what it's actually worth and not what I told my wife I paid for it.   :)

Re: ubitx microphone

terry hughes
 

hi

that’s what i do not know.

i guess it must be a standard mike for mobile phones.

terry gm4dso

Re: ubitx microphone

iz oos
 

Can you send a picture of that?


Il 29/dic/2018 18:37, "terry hughes via Groups.Io" <terryhugheskirkcudbright=yahoo.co.uk@groups.io> ha scritto:
hi

that’s what i do not know.

i guess it must be a standard mike for mobile phones.

terry gm4dso

Joining group

paul8464@...
 

N5KU

Re: ubitx microphone

terry hughes
 

hi
thanks picture attached

Re: ubitx microphone

iz oos
 

It looks like electret. It should work, but don't expect to outperform the stock electret shipped with the ubitx.


Il 29/dic/2018 18:51, "terry hughes via Groups.Io" <terryhugheskirkcudbright=yahoo.co.uk@groups.io> ha scritto:
hi
thanks picture attached

Re: What to do when The Ultimate Short happens?

Mike Short
 

My friend updates his inventory of equipment yearly with prices from QRZ, eBay, etc. his XYL has a good starting point 

Re: What to do when The Ultimate Short happens?

Bob Lunsford <nocrud222@...>
 

REF:
"My friend updates his inventory of equipment yearly with prices from QRZ, eBay, etc. his XYL has a good starting point "

For a knowing person, wise about radio equipment and its value,
it can be a good investment. However, I have friends who would
handle it if something catastrophic happened. Otherwise, I am
busy "thinning the herd" and believe one good, simple working
system is wisest for me. However, as the old saying goes:
"Everyone's taste is in his own mouth."

Bob — KK5R

--------------------------------------------

On Sat, 12/29/18, Mike Short <ai4ns.mike.spam@...> wrote:

Subject: Re: [BITX20] What to do when The Ultimate Short happens?
To: BITX20@groups.io
Date: Saturday, December 29, 2018, 1:23 PM

My friend updates his inventory
of equipment yearly with prices from QRZ, eBay, etc. his XYL
has a good starting point

Re: What to do when The Ultimate Short happens?

Curt
 

Bob

Good approach,  although I confess to having a few rigs, including the hw16 I used in 1970 something. Yes good advice to not always be increasing in rigs. Enjoy them and pass them on sometimes.

We must also recognize the bitx and ubitx to be international in scope, my we are blessed by folk in India that make it happen. To some hams its their only rig. I fear when we flaunt too much affluence or knowledge here. Let's help everyone, everywhere enjoy the bitx and ubitx experience,  and not forget we come from diverse cultures here.

Happy 2019 to the bitx world.

Curt