Date   

Re: Good (brrrrrr) Morning

Paul Smith
 

it is 12 degrees here with a little wind from the north. 1/2 inch of snow and flurries. I have to go pay bills, bank, PO and such today fine day for a a jaunt around outside.

Sure wish the bands would improve. 40 is devoid of signals cul de Paul N0NBD


Sent from Outlook




From: 4sqrp@... <4sqrp@...> on behalf of WA0ITP wa0itp@... [4sqrp] <4sqrp@...>
Sent: Thursday, January 5, 2017 1:57 PM
To: 4sqrp@...; Dale Putnam
Subject: Re: [4sqrp] Good (brrrrrr) Morning
 
 

7 above in SEIA, and a light dusting of snow, but no wind.  Ditto on the benchwork, I gotta bunch.

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 1/5/2017 7:53 AM, Brian Ford kf4tap@... [4sqrp] wrote:
 

Yes Mo is similar.  Still waiting for a few parts. 


Kf4tap


Sent from Yahoo Mail for iPad

On Thursday, January 5, 2017, 07:48, Dale Putnam daleputnam@... [4sqrp] <4sqrp@...> wrote:

 

8 mi visi, -5 below, 10 mph breeze, with .45 in of moisture in about a ft of snow. 

Good day to stay rather close to the fire.. and soldering iron.

The snow will move if the wind picks up to 15 moh..   travel on I80 is not a good idea just yet.

  Nor is antenna work.. so what is there.. is going to have to stay.. for the FOXHUNT tonight..  

www.qrpfoxhunt.org.

Welcome to the QRP FOX HUNT! Home Page "It's a fine fox chase, my boys!" George Washington, Battle of Princeton, 1777



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

"Actions speak louder than words"
1856 - Abraham Lincoln


Re: Bayou Jumper Regen setup

Bill Noyce
 

Looking at the Tx schematic, I wonder if the intent was to have Rx mode provide power only to the xtal oscillator but not the IRF-510.  That would let you have a low-power 'spot' ... but as drawn that's not what happens.  Another diode like D1 would be needed to isolate the IRF-510, I think.
  -- Bill, AB1AV 


Re: Good (brrrrrr) Morning

WA0ITP
 

7 above in SEIA, and a light dusting of snow, but no wind.  Ditto on the benchwork, I gotta bunch.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 1/5/2017 7:53 AM, Brian Ford kf4tap@... [4sqrp] wrote:

 

Yes Mo is similar.  Still waiting for a few parts. 


Kf4tap


Sent from Yahoo Mail for iPad

On Thursday, January 5, 2017, 07:48, Dale Putnam daleputnam@... [4sqrp] <4sqrp@...> wrote:

 

8 mi visi, -5 below, 10 mph breeze, with .45 in of moisture in about a ft of snow. 

Good day to stay rather close to the fire.. and soldering iron.

The snow will move if the wind picks up to 15 moh..   travel on I80 is not a good idea just yet.

  Nor is antenna work.. so what is there.. is going to have to stay.. for the FOXHUNT tonight..  

www.qrpfoxhunt.org.

Welcome to the QRP FOX HUNT! Home Page "It's a fine fox chase, my boys!" George Washington, Battle of Princeton, 1777



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

"Actions speak louder than words"
1856 - Abraham Lincoln


Re: Good (brrrrrr) Morning

keith ford
 

Yes Mo is similar.  Still waiting for a few parts. 

On Thursday, January 5, 2017, 07:48, Dale Putnam daleputnam@... [4sqrp] <4sqrp@...> wrote:

 

8 mi visi, -5 below, 10 mph breeze, with .45 in of moisture in about a ft of snow. 

Good day to stay rather close to the fire.. and soldering iron.

The snow will move if the wind picks up to 15 moh..   travel on I80 is not a good idea just yet.

  Nor is antenna work.. so what is there.. is going to have to stay.. for the FOXHUNT tonight..  

www.qrpfoxhunt.org.

www.qrpfoxhunt.org
Welcome to the QRP FOX HUNT! Home Page "It's a fine fox chase, my boys!" George Washington, Battle of Princeton, 1777



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

"Actions speak louder than words"
1856 - Abraham Lincoln


Good (brrrrrr) Morning

Dale Putnam
 

8 mi visi, -5 below, 10 mph breeze, with .45 in of moisture in about a ft of snow. 

Good day to stay rather close to the fire.. and soldering iron.

The snow will move if the wind picks up to 15 moh..   travel on I80 is not a good idea just yet.

  Nor is antenna work.. so what is there.. is going to have to stay.. for the FOXHUNT tonight..  

www.qrpfoxhunt.org.

www.qrpfoxhunt.org
Welcome to the QRP FOX HUNT! Home Page "It's a fine fox chase, my boys!" George Washington, Battle of Princeton, 1777



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

"Actions speak louder than words"
1856 - Abraham Lincoln


Re: Bayou Jumper Regen setup

Jim, N5IB
 


Glad to hear you got the tuning range sorted out. ...I had to grin diabolically when I read that you didn't want to fiddle with the trimmers.  I put them in the circuit because lots of folks hate to fiddle with toroids - hi

Concerning the regeneration. Let me be sure I'm interpreting you right. The fully CCW position is what I call 7 o'clock, mid scale is 12, and fully CW is about 5, right.

Since most of the time you'll be operating the Rx just past the onset of oscillation it only matters that you can go into and out of oscillation smoothly.. It does help to have a lot of regeneration available in reserve  if you have to deal with a strong signal that tries to pull or block the detector. The spotting function will do better also if regeneration is robust. That's why I like to set mine with the onset of oscillation at about 30% of the way up from fully CCW. I crank it full bore when spotting.

Jim, N5IB


Now to the Regen positioning....presently it doesn't kick in until about the 9 o'clock position BUT seems to have plenty left all the way to fully clockwise...
This makes me wonder is there is much more to be gained by trying to readjust it back to the 6 o'clock position....


First 2x Bayou

kb4qqj
 

Thanks Rocky AF2AF for first 2x Bayou Contact. NC to AR not so bad. That's a record 2x Bayou for me.

73 for now,
Randy_KB4QQJ



Re: Bayou Jumper Regen setup

pkfspo2fvm3t4okbh2yd3tkzw6bblzcdrjoscwip@...
 

Thanks to all for your suggestions...and the links...the information there was a big help and here is what I have done today...

Not wanting to fiddle with adjusting the trim capacitors yet I decided to play with the toroids windings....
I made up a short antenna as shown on the Bayou Jumper page and verified what I thought I already knew...the regen circuit was occilating  at 7.269088 Mhz...way too high...so I pulled the radio out of the box and the faceplate off and put the tuning knob and control knob back on...

Then I started moving the turns on the toroid...at first with my fingers but then started using one of those plastic flossing/toothpick tools you buy in big packages.
Anyway, after overshooting in both directions my target I finally got it to squeal at 7.000 Mhz...yea!...
I put the faceplate on and when I put the last screw in (the one closest to the toroid it jumped to 7.004...close enough for Guberment Work and me...whew! what a task...

Re-assembled the entire thing and then mapped out the tuner position to frequencies...it now tunes from 7.004 to 7.150...and I mapped a freq for each position including the 1/2 way points.

I put it on the air and verified my 2 crystals are 7.121 (7.112) and 7.028 {7.030)...no complaints there.  I also checked the Reverse Beacons and had spots from as far away as Canada (approx. 1600 miles) as well as spots from WA, AZ, UT and FL all on 3.2 to 4.4 watts and using an 8-pack of AA Batteries that produced not quite 12VDC so I presume that when I crank it up to 13.6 it should be pushing closer to that 5 watt target.

Now to the Regen positioning....presently it doesn't kick in until about the 9 o'clock position BUT seems to have plenty left all the way to fully clockwise...
This makes me wonder is there is much more to be gained by trying to readjust it back to the 6 o'clock position....

As before, comments and suggestions greatly appreciated...
x


---In 4sqrp@..., <n5ib@...> wrote :

Check over on the Bayou Jumper Yahoo Group (it's a public group so quick sign-up if you're not yet joined
<https://groups.yahoo.com/neo/groups/BayouJumper/info> )

The are some more tips there from me and others about initial set up and getting the tuning range right. Also lots of photos, files, and links

Jim, N5IB


---In 4sqrp@..., <pkfspo2fvm3t4okbh2yd3tkzw6bblzcdrjoscwip@...> wrote :
My receiver side is working but I have no idea WHERE it is on the frequency spectrum...I can pick up allot of Spanish speaking stations but can't figure out what freq they are on...I tried using my General Coverage Receiver  but still can't figure out where they are.


Re: Trimming the Bayou Jumper's Crystals

Jim Sheldon
 

Looking at the transmitter schematic it would be pretty difficult to do that as you would also drop the voltage to the regulator in the receiver and might hit the regulator dropout point and mess up the regen frequency in not kill the RX completely. Let's see if the design guys chime in on this one.

Jim, W0EB

Sent from my iPad

On Jan 4, 2017, at 6:21 PM, 'Jim Sheldon' w0eb@cox.net [4sqrp] <4sqrp@yahoogroups.com> wrote:

I was digging in my parts bin and came across a 5.5-30pf PC mount
trimmer (source unknown unfortunately). I also found an old phenolic
FT-243 crystal socket and the base from an old FT-241 crystal in the
same box of parts. The FT-241 crystals are wider than the 243's, but
they have identical pin spacing and diameter. I cut a couple of pieces
of 1/8" brass tubing (fits over the pins on the old crystal base). 1
piece 1/2" long and the other 1/4" long. soldered the 1/2" piece over
one of the pins on the internal side of the FT-241 base and the 1/4"
piece over the other one. I soldered one terminal of the phenolic
socket to the 1/2" long piece of tubing while positioning the other one
directly over the 1/4" piece. Then I soldered one lead of the 5.5-30pf
trimmer to the socket terminal and the other lead to the 1/4" long piece
of tubing already soldered to the old crystal base.

This gives me a way to plug a crystal into the Bayou Jumper and adjust
it a bit. With the trimmer capacitor in series with one lead of the
crystal, it will allow you to move the frequency up about 1 KHz which
enabled me to put the 7.122 crystal included in the kit very close to
right on 7.122 using my K3S receiver to listen while I adjusted it. I
checked the 7.030 crystal also included with the kit in the same little
VXO arrangement and no adjustment was needed as it too was on close
enough to 7.030 that it doesn't need it's own trimmer. I can use the
same VXO arrangement for both crystals.

I'm just posting this to let people know the approximate value of
trimmer that seems to work. The spot problem is another story. It
appears that the output of the crystal oscillator in the transmitter
even by itself is so strong that it overloads the regenerative detector.
There may be a way to shield it and knock that internal signal down a
bit, but I'm going to leave that to the designers and just use an
external, calibrated signal generator I have to spot the frequencies.
Not the ideal solution, but it seems like all we can do right now.

Jim - W0EB



------------------------------------
Posted by: "Jim Sheldon" <w0eb@cox.net>
------------------------------------

4SQRP Website: http://4sqrp.com
Plan to attend OzarkCon on - April 1-2, 2016
View Details at http://www.ozarkcon.com/index.php
------------------------------------

Yahoo Groups Links



WWII Japanese Spy Radio in cigar box, Hammond Museum of Radio, Guelph, Ontario, September, 2013

James W. Hodgson
 


80 acre FOXHUNT

Dale Putnam
 


The 80 acre FOXHUNT will start promptly at 7pm MT Thursday evening, aka 0200z Fri, between the two trees marked 3550 and 3570.. Between those two trees will be TWO FOX, aka K4BAI and WC7S who will be calling "CQ FOX de (cal)" "UP" or "DWN"

This is a training for dx ops that want to become more proficient working through dx pileups, so listen close to the FOX instructions.. it isn't out of line to hear "up 1" then the next time "up 2" and then "dwn 1" ... all of which indicate where to go to grab a pelt freely handed out by the FOX. This also indicates what the FOX may be having to deal with too. A HUGE pile of baying hounds.. all in a pile is tuff to sort out, so moving about, may help, when following directions, or spreading just abit out of the pile.

  The exchange will be  - RST- state/province - name - power    (max power is 5 watts, while many have gained a pelt with under 100 mw across the country)


K4BAI  Ga John 5w


WC7S  WyLee 5W




Good luck to all, and

 

May the PROPS be always in OUR FAVOR

Have a great day,


--...   ..---
The Wylee FOX in Wy


Re: Trimming the Bayou Jumper's Crystals

keith ford
 

About the spot problem, would a pot in line to reduce the voltage to the oscillator help? Crank the power down for spotting then turn it back for transmit? Adds one more control...  

On Wednesday, January 4, 2017, 18:21, 'Jim Sheldon' w0eb@... [4sqrp] <4sqrp@...> wrote:

 

I was digging in my parts bin and came across a 5.5-30pf PC mount
trimmer (source unknown unfortunately). I also found an old phenolic
FT-243 crystal socket and the base from an old FT-241 crystal in the
same box of parts. The FT-241 crystals are wider than the 243's, but
they have identical pin spacing and diameter. I cut a couple of pieces
of 1/8" brass tubing (fits over the pins on the old crystal base). 1
piece 1/2" long and the other 1/4" long. soldered the 1/2" piece over
one of the pins on the internal side of the FT-241 base and the 1/4"
piece over the other one. I soldered one terminal of the phenolic
socket to the 1/2" long piece of tubing while positioning the other one
directly over the 1/4" piece. Then I soldered one lead of the 5.5-30pf
trimmer to the socket terminal and the other lead to the 1/4" long piece
of tubing already soldered to the old crystal base.

This gives me a way to plug a crystal into the Bayou Jumper and adjust
it a bit. With the trimmer capacitor in series with one lead of the
crystal, it will allow you to move the frequency up about 1 KHz which
enabled me to put the 7.122 crystal included in the kit very close to
right on 7.122 using my K3S receiver to listen while I adjusted it. I
checked the 7.030 crystal also included with the kit in the same little
VXO arrangement and no adjustment was needed as it too was on close
enough to 7.030 that it doesn't need it's own trimmer. I can use the
same VXO arrangement for both crystals.

I'm just posting this to let people know the approximate value of
trimmer that seems to work. The spot problem is another story. It
appears that the output of the crystal oscillator in the transmitter
even by itself is so strong that it overloads the regenerative detector.
There may be a way to shield it and knock that internal signal down a
bit, but I'm going to leave that to the designers and just use an
external, calibrated signal generator I have to spot the frequencies.
Not the ideal solution, but it seems like all we can do right now.

Jim - W0EB


Trimming the Bayou Jumper's Crystals

Jim Sheldon
 

I was digging in my parts bin and came across a 5.5-30pf PC mount
trimmer (source unknown unfortunately). I also found an old phenolic
FT-243 crystal socket and the base from an old FT-241 crystal in the
same box of parts. The FT-241 crystals are wider than the 243's, but
they have identical pin spacing and diameter. I cut a couple of pieces
of 1/8" brass tubing (fits over the pins on the old crystal base). 1
piece 1/2" long and the other 1/4" long. soldered the 1/2" piece over
one of the pins on the internal side of the FT-241 base and the 1/4"
piece over the other one. I soldered one terminal of the phenolic
socket to the 1/2" long piece of tubing while positioning the other one
directly over the 1/4" piece. Then I soldered one lead of the 5.5-30pf
trimmer to the socket terminal and the other lead to the 1/4" long piece
of tubing already soldered to the old crystal base.

This gives me a way to plug a crystal into the Bayou Jumper and adjust
it a bit. With the trimmer capacitor in series with one lead of the
crystal, it will allow you to move the frequency up about 1 KHz which
enabled me to put the 7.122 crystal included in the kit very close to
right on 7.122 using my K3S receiver to listen while I adjusted it. I
checked the 7.030 crystal also included with the kit in the same little
VXO arrangement and no adjustment was needed as it too was on close
enough to 7.030 that it doesn't need it's own trimmer. I can use the
same VXO arrangement for both crystals.

I'm just posting this to let people know the approximate value of
trimmer that seems to work. The spot problem is another story. It
appears that the output of the crystal oscillator in the transmitter
even by itself is so strong that it overloads the regenerative detector.
There may be a way to shield it and knock that internal signal down a
bit, but I'm going to leave that to the designers and just use an
external, calibrated signal generator I have to spot the frequencies.
Not the ideal solution, but it seems like all we can do right now.

Jim - W0EB


Re: Ferrite Suppliers

wa2cky
 

Excellent material and thanks.  I followed the links and, for my own purposes, found a Type 31 snap-on with an inside diameter of 0.4" for $2.50'ish each at good ol' Mouser. Quick and easy.

73
Bob Groh, WA2CKY


Re: Bayou Jumper Regen setup

Jim, N5IB
 

Check over on the Bayou Jumper Yahoo Group (it's a public group so quick sign-up if you're not yet joined
<https://groups.yahoo.com/neo/groups/BayouJumper/info> )

The are some more tips there from me and others about initial set up and getting the tuning range right. Also lots of photos, files, and links

Jim, N5IB


---In 4sqrp@..., <pkfspo2fvm3t4okbh2yd3tkzw6bblzcdrjoscwip@...> wrote :
My receiver side is working but I have no idea WHERE it is on the frequency spectrum...I can pick up allot of Spanish speaking stations but can't figure out what freq they are on...I tried using my General Coverage Receiver  but still can't figure out where they are.


Re: Ferrite Suppliers

Howard Hoyt
 

Hi all,
There are so many types of ferrites, and many are optimized for VHF/UHF attenuation and offer little impedance at HF where we want them to. There are a few different mix ferrites which will work well at 1.8MHz to 30MHz, namely 31 and 43. Mix 31 is superior for the lower portion of this range and 43 has a small advantage above 20MHz. A LOT of data can be found on the Fair-Rite website:

http://www.fair-rite.com/product-category/suppression-components/round-cable-emi-suppression-cores/

If you click on any core type you can access performance data for that core. We decided to carry mix 31 from Fair-Rite because:

1) It is the best balance across the HF spectrum.
2) Fair-Rite makes high-quality ferrites.
3) They are made in the USA.
4) They are price competitive with other name-brand ferrites.

Cheer & 73,
Howie - WA4PSC
www.proaudioeng.com


Re: Bayou Jumper Regen setup

Curt
 

Mine was receiving above 7250 when completed after adjusting the trimmer as much as possible.  Squeezing the turns on the coil brought the frequency down, it now tunes 7-7.15.  You will need to listen for the oscillator in a general coverage receiver or use a frequency counter to find the signal. 

72, Curt KB5JO


Re: Bayou Jumper Regen setup

Bry Carling <af4k@...>
 

There are a few Spanish stations that chat SSB in our 7100 - 7125 "Novice section."  That is what you are hearing.


Bry AF4K



From: 4sqrp@... <4sqrp@...> on behalf of pkfspo2fvm3t4okbh2yd3tkzw6bblzcdrjoscwip@... [4sqrp] <4sqrp@...>
Sent: Wednesday, January 4, 2017 1:17 AM
To: 4sqrp@...
Subject: [4sqrp] Bayou Jumper Regen setup
 
 

I got my Bayou Jumper up and running this evening...the transmit side is fine...although my crystals are both a bit low but that is not my problem...

My receiver side is working but I have no idea WHERE it is on the frequency spectrum...I can pick up allot of Spanish speaking stations but can't figure out what freq they are on...I tried using my General Coverage Receiver  but still can't figure out where they are.

Also, the spot function doesn't seem to be working BUT I presume that is because the tuning is way off...I have poured over the instructions but can't find a solution.

Any help or suggestions will be greatly appreciated....thanks



Re: Monitoring 7 point 112

Bry Carling <af4k@...>
 

Try Saturday mornings on 40m. You may be surprised. You won't cover the same distances as you do in the evenings, but signals will be stronger. This is why we are having the NRR cover two full weekends. It gives those who can;t be home during the daytime in the week, to get on and make a ton of fun contacts.


I am anticipating contacts with a LOAD Of Bayou Jumpers and other QRP stations FEB 18 - 27 UTC. 73 de AF4K, Bry


http://NoviceRigRoundup.com




From: 4sqrp@... <4sqrp@...> on behalf of William Wood ke9xq@... [4sqrp] <4sqrp@...>
Sent: Tuesday, January 3, 2017 9:19 PM
To: 4sqrp@...
Subject: [4sqrp] Monitoring 7 point 112
 
Hey Guys and Gals
   Don’t know how many you guys worked on SKN
nor this afternoon, but thought I’d report my rather
uneventful events ; )
   Listened hard on 7.023 for quite awhile and while
I did hear a couple QRO stations, did not hear any
strong enough to hold a qso with.  Listened for quite
a while also on 7.112 looking for a copyable signal and
all sigs were down in the weeds…  Did hold a nice QSO
with a gent outside of San Francisco otherwise not too
much in the qso department, mostly noise : ) 
   BUT I did want to report on a couple of signals.  Heard
several of you guys pounding out good clean signals, but
were too far down in the weeds to even try to contact you
QSB and the noise level were something else : )
   Two signals were worth pointing out.  Had fun trying to
copy a chirp, but this one was different, it chooiped up
sometimes and then down, and another sounding like it
was square wave 120 cycle modulated oscillator.  : )
Fun signals, but too weak for me to catch and communicate
with.  Just to let you know I heard you, but did not hear well.
I have been hanging around 7.112 but other then an occasional
digital signal, the other ones were out there but weak.   I then
suppose my signal to also be down in the weeds too, : )
One of these days : )
73  72  fer now
Bill  KE9XQ 

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

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

4SQRP Website: http://4sqrp.com
Plan to attend OzarkCon on - April 1-2, 2016
View Details at http://www.ozarkcon.com/index.php
www.ozarkcon.com
OzarkCon at a Glance - Large Dinner Banquet the first evening with after Dinner Speaker; Kit Building hosted by the Midwest Homebrewers and QRP Group

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Re: Bayou Jumper Regen setup

Ariel Jacala
 

Make the antenna shown in the photos section or as shown blow



Then drape it on the BJ

Hunt for where the tone is on the listening transceiver.  Make sure you are hearing the regen hiss. - move the pot from the high side to the low side and see where it is on both ends

Ariel NY4G

Sent from my iPad

On Jan 4, 2017, at 01:17, pkfspo2fvm3t4okbh2yd3tkzw6bblzcdrjoscwip@... [4sqrp] <4sqrp@...> wrote:

 

I got my Bayou Jumper up and running this evening...the transmit side is fine...although my crystals are both a bit low but that is not my problem...

My receiver side is working but I have no idea WHERE it is on the frequency spectrum...I can pick up allot of Spanish speaking stations but can't figure out what freq they are on...I tried using my General Coverage Receiver  but still can't figure out where they are.

Also, the spot function doesn't seem to be working BUT I presume that is because the tuning is way off...I have poured over the instructions but can't find a solution.

Any help or suggestions will be greatly appreciated....thanks


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