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Re: Antenna Tuner isue

Curt
 

Dave

nice on your successful build.  Scratchy audio heard when exercising the tuner -- wow very cool to translate mechanical motion into audio modulated electrons -- this is called microphonics, I think ...

No I don't think this is what you are experiencing.  you did not mention that you are transmitting when you here these sounds - but I suspect this is the case.  If so, it is a little instability in the PA or driver stage under varying load to the antenna (often high VSWR but not always).  this is more noticeable in a transceiver that feed transmit audio into the receive chain for the side-tone.  it is an oddity that it occurs while tuning -- hopefully it sounds much clearer when tuner is appropriately adjusted for a match? 

If you are not hearing it after the tuner is adjusted in normal operation, I suggest all is well enough. 

73 CUL

Curt


Antenna Tuner isue

David Wilcox
 

 
I have built the 4SQRP Group antenna tuner and really think it is a fantastic kit and easy to build with the provided instructions. It seems to work quite well and I have tested it against other antenna tuners that I have and it is spot on in tuning a long wire that I have is a temporary antenna.
 
I have noticed though, that when I rapidly turn the left sided tuning capacitor it is scratchy in the audio that I am hearing on the receiver. I didn't think that was possible with these small tuning caps since they have a plastic layer between each of the veins.
 
Since it does work correctly is this a problem? Should I replace the cap?
 
Thank you for any and all advice.
 
Dave K8WPE


Re: ZZRX-40

Curt
 

Good thought -- I did not consider the possibility of no LO reaching the SA612 IC -- in that case a mixer becomes a resistor, and perhaps only an AM receiver. 

Looking forward to hearing that the receiver is working. 

73 Curt


Good Morning Lil Ol World!

Dale Putnam
 

45F calm, clear, and the promise of a good day to come.!!  


On Thursday.. yes Thursday.. at 2200z, on 14.0625 the Rocky Mountain and Continental cw practice net will be called... for the LAST time in OCT.   So come check in.. and have a BOO.. on me!! 

Check in at your own comfy speed, I will match you. No but net protocol to worry about.. no list of "Q" signals.. and if you want or need to swap numbers with folks.. just let me know when you check in. NO PROBLEM.

 Then.. after the 20M net, I'll call it on 7.0625 and do it there. Pretty much covers the country, come  get your BOO on.




Have a great day,
--... ...-- Dale - WC7S in Wy

"Actions speak louder than words"
1856 - Abraham Lincoln


Re: ZZRX-40

w9qs@...
 

If I remember right you need the jumpers in the xtal position unless you are using an external VFO.

Mike, W9QS
60th year in Ham Radio
First licensed in 1956 as KN6TBP


------ Original Message ------

From: firebird1957@... [4sqrp]
To: 4sqrp@...
Sent: October 25, 2016 at 9:02 PM
Subject: [4sqrp] ZZRX-40
 

HI THERE, IM WX4CAZ. I JUST GOT DONE BUILDING THE ZZRX40, MY QUESTION IS THAT IM STUCK ON SOME SHORTWAVE FREQ, AND THE TRIM CAP DONT WORK AND THE FREQ KNOB DONT DO ANYTHING EITHER. ALL I HEAR IS SPANISH BROADCAST LOW AUDIO,  ANY IDEA WHAT I DID WRONG....  BOTH JUMPERS ARE ON VFO. ANY HELP WOULD BE GREAT.  THANKS, JOE


Sources of interesting alternative boxes for Bayou Jumper

Steve Ireland <vk6vz@...>
 

G’day
 
For those who are interested in an unusual alternative to the Hobby Lobby boxes, take a look in your town or city at the shops that are run by charities that work to improve living conditions and health in the poorest of Asia and African countries.
 
I bought two brilliant keepsake/jewellery boxes yesterday in the Oxfam shop in Perth with very similar dimensions to the smallest Hobby Lobby box. 
 
Have a look at https://shop.oxfam.org.au/homedecor/interior/boxes-baskets/?p=2 for ideas. One of the boxes I bought is the carved elephant keepsake box (AUS29.95). It’s dimensions are not identical to the Hobby Lobby box, but probably close enough to make the Bayou Jumper fit.  The box is made from Mango wood and comes from India.  My other box is made of Sheesham wood, sometimes called Indian Rosewood, and is from Utta Pradesh in India.
 
Charity shops like the Oxfam ones  often sell lots of these keepsake boxes, as they are popular in the country of origin, where hand skills are still very important and have higher value than in ‘western countries’. 
 
You can buy a really nice box for your project and help with overseas aid too.
 
Vy 73
 
Steve, VK6VZ
 
.


Virus-free. www.avast.com


Re: ZZRX-40

Curt
 

Joe

sometimes a direct conversion receiver will pick up a loud station and receive it like a crystal detector - meaning VFO will not tune it.  Perhaps a time out to look over work, orientation of parts and solder joints.  we have all been there - or possibly things are almost working.  I often use a frequency counter -- or put a piece of wire near the oscillator to see if a receiver will pick it up, and it is tuning.  I am not building this particular receiver so a fellow builder should come to your aid.

73 Curt


ZZRX-40

firebird1957@...
 

HI THERE, IM WX4CAZ. I JUST GOT DONE BUILDING THE ZZRX40, MY QUESTION IS THAT IM STUCK ON SOME SHORTWAVE FREQ, AND THE TRIM CAP DONT WORK AND THE FREQ KNOB DONT DO ANYTHING EITHER. ALL I HEAR IS SPANISH BROADCAST LOW AUDIO,  ANY IDEA WHAT I DID WRONG....  BOTH JUMPERS ARE ON VFO. ANY HELP WOULD BE GREAT.  THANKS, JOE


Re: Bayou Jumper - Sneak Peak! Box

Mark Janzer
 

I had the opportunity to visit two Hobby Lobby's yesterday and experienced the following:

If the store does not have the small box in stock (on the shelf), they cannot order another one. They are required to order the entire "nested" three box set. They will not order an entire set if there is one or two of the other sized boxes on the shelf.
The "nested" set is available online, but not the one small box.

The small box dimensions are 7-3/4" x 3-1/4" x 5-1/2".

An alternative box can be had at a cigar store. One nearby to me has a large collection available for sale, of various shapes and sizes. I found a "Black Market" cigar box with some personality, and similar dimensions.

to wit:


With some modifications I hope it'll be adaptable to the new kit.

Cheers,
Mark
K5MGJ
 


CQ CQ CQ 3564 is only a dull roar

Paul Smith
 

CQ CQ CQ N0NBD N0NBD K


Sent from Outlook


Re: Bayou Jumper - Sneak Peak! Box

Bob Netherton
 

On 10/21/16 10:57 AM, WA0ITP wa0itp@mchsi.com [4sqrp] wrote:

**The box is from HobbyLobby andcan be ordered here
http://www.hobbylobby.com/Crafts-Hobbies/Wood-Crafting/Unfinished-Wood/Wood-Rectangle-Box-Set-with-Silver-Handle/p/25426-GA0369
Or purchased in their stores, SKU# 662536S
If you are fortunate enough to be near a Hobby Lobby, the boxes are available individually (the S in the above SKU is the small one). With an internet 40% off coupon, it works out to about $3.80 including tax, at least down here.

73s
Bob - K5RLN


Re: NS 40

David Wilcox
 

Keep checking eBay.  I found one a few years ago set up with the SAXVO oscillator.  They show up every once in a while.

Dave K8WPE

On Oct 24, 2016, at 7:27 AM, rolph981@... [4sqrp] <4sqrp@...> wrote:

 

Is there any possible way to get a NS 40? I went to the ebay listing at 6:30 Sunday morning and it said sold out. 

Tnx de kb4qnr


Bobby in Kentucky



Re: NS 40

John Lonigro
 

I'm not involved with the bayou jumper at all, but since it is called a "transceiver" and since it includes the NS40, my educated guess is that the NS40 circuitry is incorporated into the Bayou Jumper.  The NS40 offered by David is a stand-alone transmitter only, similar to (identical to?) the ones previously offered by 4SQRP.

I'm hoping all the interest in the Bayou Jumper will translate into more activity on the Second Sunday Sprint, since I understand one of the crystals included with the rig is the frequency used by many for that contest (7122 kHz).  Actually, the other crystal (7030 kHz) is often used as well.  Note the receiver coverage (about 120 kHz) is such that it should be able to receive both of those frequencies, one on each end of the tuning dial.

Speculating a little, I assume that, once all the parts have arrived, kitting has begun, and a suitable selling price has been determined, the kit will show up for sale on the 4SQRP website.

My favorite prayer:

"Lord, give me patience, but I want it NOW!"

72,

John, AA0VE


On 10/24/2016 10:00 AM, kb0qpm@... [4sqrp] wrote:
 
I am waiting for the bayou jumper which uses the ns 40 tx. Will it be available with the bayou jumper or do I try to get one from this run?



Re: NS 40

Johnny AC0BQ
 

It's built into the Bayou Jumper
72
Johnny 


On Monday, October 24, 2016, kb0qpm@... [4sqrp] <4sqrp@...> wrote:
 

I am waiting for the bayou jumper which uses the ns 40 tx. Will it be available with the bayou jumper or do I try to get one from this run?



--
QRP....."More smiles per Watt"
72
JOHNNY AC0BQ  ..




Re: NS 40

jwhumble@sbcglobal.net
 

I am waiting for the bayou jumper which uses the ns 40 tx. Will it be available with the bayou jumper or do I try to get one from this run?


Re: Bayou Jumper - Sneak Peak!

ai9e_qrp@...
 

Steve, the box used is the SMALLEST of the three.  There is plenty of room on the inside for extras!

73 Dave



Re: NS 40

W0IIT
 

Bobby,

The small run of NS-40s was stopped due to a problem that cropped up.  Watch carefully here and the other QRP list servers for the announcement that they are once again available.  I have no idea of how many units are going to be available so it will probably be fast action.

Also the 4StateQRP Group are coming out with a transceiver in which the transmitter portion of the unit is a NS-40.  That kit will be available shortly.  Watch for that and check out www.4sqrp.com   Hang in there.

cu es 72, Bart w0iit
Pittsburg, KS
Moderator of the NS-40 Yahoo Group


On Oct 24, 2016, at 6:27 AM, rolph981@... [4sqrp] <4sqrp@...> wrote:


Is there any possible way to get a NS 40? I went to the ebay listing at 6:30 Sunday morning and it said sold out. 

Tnx de kb4qnr


Bobby in Kentucky





NS 40

bobby rolph
 

Is there any possible way to get a NS 40? I went to the ebay listing at 6:30 Sunday morning and it said sold out. 

Tnx de kb4qnr


Bobby in Kentucky



Re: Bayou Jumper - Sneak Peak!

Steve Ireland <vk6vz@...>
 

Hi Dave
 
Very excited to hear about the Bayou Jumper.
 
In regard to the case/box:
 
“The box is from HobbyLobby and can be ordered here
http://www.hobbylobby.com/Crafts-Hobbies/Wood-Crafting/Unfinished-Wood/Wood-Rectangle-Box-Set-with-Silver-Handle/p/25426-GA0369 or purchased in their stores, SKU# 662536S”

Please can you let me know if the box used from the Hobby Lobby wood rectangle box set is the largest one of the three boxes (i.e. 12 inch x 4 inch  x 8 and a half inch)?
 
Although I can’t buy Hobby Lobby boxes in Australia, I just spotted a similar sized mini wooden suitcase in a shop here (complete with Zebra colour scheme!). There is only one of these and it is on a very good special, so if you confirm it is the largest box, I shall make the purchase of the suitcase.
 
Vy 73
 
Steve, VK6VZ (also G3ZZD and VY2LF) 
 

Virus-free. www.avast.com


Re: Bayou Jumper - Sneak Peak!

w2sh@...
 

Curt,


It's not a trade secret, but I think the diameter of the pins on an HC-6 crystal (if that size crystal is what will be used) is the same or very close to that of the pins of a 7 or 9-pin miniature tube (please check this!).


Next would be to get one of those tube sockets and break it up with heavy-duty diagonal pliers, salvage the female pins, measure the spacing of the HC-6 with dividers, transfer that spacing to the circuit board using the dividers and prick the circuit board with them, enlarge the pricked marks with a scratch awl, drill two holes to establish a tight fit for two female pins and epoxy them in place.


72,


Charles (aka Chas), W2SH



From: 4sqrp@... <4sqrp@...> on behalf of wb8yyy@... [4sqrp] <4sqrp@...>
Sent: Friday, October 21, 2016 6:00 PM
To: 4sqrp@...
Subject: [4sqrp] Re: Bayou Jumper - Sneak Peak!
 
 

Wow -- very cool -- regens are us at 4state.  (and if one has a magic box, the rig can also function with those other Rx topologies with one's xtals. 

I just built a variation of the mating transmitter in the N5IB prototype un-kit. 

I am very curious how the xtal socket is being realized -- if its a trade secret a private email will work here.  Since I doubt that Dave has a huge bag of Xtal sockets -- got to be a new recipe here?

73 Curt

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