Date   

Re: Cricket musings

Jim, N5IB
 


Mouser shows # 449-LFXTAL017586BULK
HC-49  case  3.56 MHz for $0.38 each...

also # 449-LFXTAL010041BULK
HC-49  case  3.5625 MHz  also $0.38 each

Spec is ESR of 150 ohms - is that the deal breaker?

N5IB







---In 4sqrp@..., <w0eb@...> wrote :

First off, thanks Terry for posting the "Cricket Notes" yesterday. They
are all good advice and timely as well. I was searching for a source of
the HC-49/U larger size crystals for 3560

 


Cricket musings

Jim Sheldon
 

First off, thanks Terry for posting the "Cricket Notes" yesterday. They
are all good advice and timely as well. I was searching for a source of
the HC-49/U larger size crystals for 3560 and finally came across a
company that has them. I first tried JAN crystals and was very
disappointed to find that they, like International Crystal, no longer
manufacture crystals. I checked on BOMAR and they are still in business
but so far they haven't responded to an email I sent their sales/tech
department. Further searching came up with a company called Expanded
Spectrum Systems that has them and the prices are reasonable $2.55 each
with some $3+ for shipping via USPS First Class Package so I ordered 3
of them. Hopefully they'll work and my 2 local friends (N0XM, N0ALO)
and I should be up on 3560 before long.

Started having problems with the keying adapter not making good contact
with the pad at the front of the Cricket so I removed the arm, drilled a
hole under where the arm would cover it if necessary and installed a
keying jack so I could plug a straight key or my (adapted) keyer into
it. I used some heavier (#20) wire from the 9 volt terminal to one side
of the key jack and I drilled a small hole close to the contact pad on
the top. Ran the #20 from the jack to it through the hole and soldered
it to the left edge of the pad so it will be out of the way if I want to
put the built on key back in service - I won't use the adapter again
though as it doesn't always make good enough contact. Great thought,
but its implementation leaves a little to be desired. A permanently
mounted jack on the main part of the PC board would have been a tad
better IMO.

Put a coat of nice stain on the lilttle Hobby Lobby box I bought to
carry the cricket and once it's dry, I'll re-mount things. Got several
nice extra compartments to carry my little straight key, the PicoKeyer &
a micro paddle, earbuds & extra batteries. I think there's room enough
in the box under the Cricket that I might rig up a battery holder
arrangement to hold 9 volts worth of C cells which should power it for
weeks. I'll put an on/off switch in that line so when that pack is off,
I'll still be able to use the top mounted 9V alkaline batteries.

Not to neglect the Bayou Jumper either, I've gotten a bit of DX myself
with it. Worked PJ2ND in Curacao on 7.025 (4006.4 Kilometers according
to QRZ) with it. He was blowing my ears off and he gave me a 559. Now
if I can just get the Cricket working on 3560 and get a decent 2nd
antenna up for 80 meters, I can work on my "Cricketeer" status.

Jim - W0EB
Bayou Jumper Agent # 006


Re: tonights 40m net update

Wayne Dillon
 

Good morning Dale,
Looks like we may have a better time next week. I'm going to try and be on in the evenings this weekend, on or around 7.122
Be blessed,
Wayne - NQ0RP

On Wed, May 10, 2017 at 7:22 PM, dale@... [4sqrp] <4sqrp@...> wrote:
 

Bummer! Fortunately, we're looking good here west of STL. Hopefully next week, Wayne. 72.

Dale, K4EQ




--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - NQ0RP

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
NAQCC MWN NCS
NAQCC Net manager
NAQCC # 0759
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Re: Hyper-Cricket at 12 volts?

Kenneth Ketner
 

Did some additional tests with stock cricket recently built, no circuit changes. I fabricated a thin copper heatsink with about .5 x 1 inch surface area, formed its bottom around pa transistor, used some heat goo. With a battery reading 9 v open circuit, measured .7 watt out into oak hills qrp wattmeter with a dummy load. Checked temp of pa using a radio shack infrared no contact thermometer, got 79 f. Ambient temp of bench table read 77 f.

Next connected a lithium battery in 9 v box showing 10 v. Got 1 watt out. Temp at 82 f. Connected a battery of 8 1.5 v cells showing 11.5 v, got 1.5 w at 83 f. Pa not warm to touch. 

In the tests I sent some random key chatter into the dummy load for about 1 minute. 

It appears this particular gryllidae member can go with a standard shack 12 v supply, at least into a dummy load. Performance on air not tested yet. 

Would the increase in power cause failure of FCC emission standards?

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135
Sent from my iPad


WAØITP Cricket Operating Tips

WA0ITP
 

Some importantnew info has surfaced about operating the cricket, so I thought I'dupdate my notes . The original post is below, so this post will be a condensed version, but with all of the info so far.
*1.* Crystals for different frequencies: */Don't/* use the */shor/**/t /*crystals. HC49U is the recommended size, not HC49US. The short crystals have too much internal resistance for this circuit, per the designer, NMØS.
*2.* Install machined pin or SIPP sockets at the crystallocation to facilitate changing freqs, and at Q1 and Q2 if you like to experiment.
*3.* Determine your offset frequency and listen for that tone after calling CQ. (see comments below)
4. 9 volt batteries last a surprisingly long time.
*5.* If you choose to use 12 volts for convenience, change R6 to 150k-220kohms (per Dave), otherwise Q2 will become hot and probably fail, with little increase in poweroutput.
*6.* Sendslower, 15wpm or so, helps being heardwith low power in a crowded band .
*7.* Listen for your tone (mine is ~440 cycles, see below)
*8.* Buildthe keyer adapter and useyour favorite keyer and paddle, unless you like using a straight key.

Hope this helps those using the Cricket, especially new hams.
Feel free to email me with any questions abt any of the above,
or if you have other hints. wa0itp@4sqrp.com

--
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com

3560 crystals are readily available at ESShttp://www.expandedspectrumsystems.com/prod4.html
and also on Ebay. http://www.ebay.com/itm/80M-QRP-Ham-Radio-Crystals-HC49-S-4-pack-/282420358175?hash=item41c190ac1f:g:7JEAAOSw8vZXN-Ke I installed machined pin sockets on mine so can change xtals at will. I'll be trying 3560 soon.

I'm having great fun with my electroCricket, with over 20 Q's, of which 4are Cricket to Cricket QSOs. Along the way I've found that QSOs are indeed possible with a half watt on 80M, but one has to listen carefullyfor the frequency of the stations come back to you. Originally my beta build Cricket, had a very low tone on a received station wanting to work me (abt 350 cycles). Placing 10p acrossC15 (bottom of board) brought the offset up to 440 cycles, a distinct tone that is easily detected. Another great benefit of the 440 offset is that nearly all the digi signals are above the Cricket and the 440 tone slides right in underneath them. If the signal is too weak, nothing helps, but if its strong enough it's easily detectable.

A 9 volt battery will last a surprising long time, and the Cricket will still make power down to less built the keyer adapter and usethe EzKeyer III with the Cricket. Sending slower seems to garner more contacts than sending fast. IMHO the QRM and low power conspire to make the Cricket more difficult to hear. Slow sending seems to help overcome that.

--
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com


Re: WA0ITP snags S/N 002 !!!

Walter - K5EST
 

Awesome, Terry!!!!!!

I'm beginning to think the Cricket is the top of the QRPp designation.

73....Walter . K5EST




On Thursday, May 11, 2017, dekle@... [4sqrp] <4sqrp@...> wrote:
 

Terry (WA0ITP) has submitted his Cricket Log and has been sent a certificate that shows he is now Cricketeer #002.
Terry had 2 Cricket-to-Cricket QSOs in his log. WOW.
This little radio is just amazing.

Congratulations Terry! Well done.

Remember kids - it only takes 10 QSOs with your Cricket (with 10 different stations) to qualify for the certificate.
Hurry - the low numbers are going fast.

73
Bill
KV6Z




WA0ITP snags S/N 002 !!!

dekle@...
 

Terry (WA0ITP) has submitted his Cricket Log and has been sent a certificate that shows he is now Cricketeer #002.
Terry had 2 Cricket-to-Cricket QSOs in his log. WOW.
This little radio is just amazing.

Congratulations Terry! Well done.

Remember kids - it only takes 10 QSOs with your Cricket (with 10 different stations) to qualify for the certificate.
Hurry - the low numbers are going fast.

73
Bill
KV6Z




Re: WE HAVE THE FIRST CRICKETEER !!!!!!!

WA0ITP
 

Congratulations Jim.  Excellent work!!
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 5/10/2017 10:16 PM, dekle@... [4sqrp] wrote:

 

Jim Cluett - W1PID has done it  !!!!!!!

WOO HOO !!!!!

He sent in his Cricket log and has been sent his Certificate with Serial Number 001.
That's quite an accomplishment Jim.
(He even had one Cricket-to-Cricket QSO !)

(I need to get busy if I want one of those single digit numbers.)

See you on the air, Jim.

73
Bill
KV6Z





Re: WE HAVE THE FIRST CRICKETEER !!!!!!!

Walter - K5EST
 

Awesome!!!!!!!!!
73....Walter . K5EST






On Wednesday, May 10, 2017, dekle@... [4sqrp] <4sqrp@...> wrote:
 

Jim Cluett - W1PID has done it  !!!!!!!

WOO HOO !!!!!

He sent in his Cricket log and has been sent his Certificate with Serial Number 001.
That's quite an accomplishment Jim.
(He even had one Cricket-to-Cricket QSO !)

(I need to get busy if I want one of those single digit numbers.)

See you on the air, Jim.

73
Bill
KV6Z




WE HAVE THE FIRST CRICKETEER !!!!!!!

dekle@...
 

Jim Cluett - W1PID has done it  !!!!!!!

WOO HOO !!!!!

He sent in his Cricket log and has been sent his Certificate with Serial Number 001.
That's quite an accomplishment Jim.
(He even had one Cricket-to-Cricket QSO !)

(I need to get busy if I want one of those single digit numbers.)

See you on the air, Jim.

73
Bill
KV6Z




Re: tonights 40m net update

K4EQ
 

Bummer! Fortunately, we're looking good here west of STL. Hopefully next week, Wayne. 72.

Dale, K4EQ


tonights 40m net update

Wayne Dillon
 

Sorry folks, still got boomers, pulling the plugs fro tonite.
Be blessed all
Wayne - NQ0RP

--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - NQ0RP

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
NAQCC MWN NCS
NAQCC Net manager
NAQCC # 0759
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Tonights 40m net update

Wayne Dillon
 

Storms now moving through the area maybe clear by net time. I'll post again 15 minutes B4 net time
Blessings
Wayne - NQ0RP

--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - NQ0RP

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
NAQCC MWN NCS
NAQCC Net manager
NAQCC # 0759
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Wednesday evening nets

Wayne Dillon
 

I intend to call a 40m net this evening, 7.122 @ 00:30z. I will not be able to call an 80m net.
The only caveat is that the threatened storm activity holds off until after net time, weather forecast said no storm activity until later in teh evening, we shall see. Please keep a watch on QRPSpots, I'll post any last minute changes there.
I was wondering if any of the Cricketeers were interested in a Cricket net (as opposed to a Cricket bat...), just a suggestion someone may like to pick up and run with.
The A and K indexes do not look great but we've been fooled by that before. I'll be there unless storms prevent it.
Be blessed all, 72/3 de Wayne - NQ0RP

--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - NQ0RP

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
NAQCC MWN NCS
NAQCC Net manager
NAQCC # 0759
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


NAQCC May Sprint this Wednesday Evening

Larry W2LJ <w2lj@...>
 

The May NAQCC sprint is this coming Wednesday evening local time (May 10th,
EDT - 8:30-10:30PM, CDT - 7:30-9:30PM, MDT - 6:30-8:30PM, PDT - 5:30-7:30PM),
which translates as Thursday,May 11th, 0030 to 0230Z in all cases.

For all the "official" information, please go to:

http://naqcc.info/sprint/sprint201705.html

There you will find all the details as to time, frequencies and other important
information.

Certificates: SWA (simple wire antennas) certificates by call area, VE and DX
for 1st, 2nd and 3rd place finishers (New!). A Certificate for top score in the
GAIN antenna category.

Prizes: Too many to list!! - check out the prizes page on our website.

This is a monthly event that caters to the CW veteran, the CW newcomer, straight
key and bug fans. All are welcome to participate (this includes QRO); but you
must use QRP power levels to compete for awards.

If you've been hesitant to join in our sprints because you hear other sprints
running at breakneck speeds, have no fear. Our sprints are geared to the
newcomer to CW and/or contesting. Virtually everyone including the many veteran
contesters who regularly enter our sprints will slow down to YOUR speed to help
you make your contacts.

If you are not already a member of NAQCC... membership is FREE! Now is your
chance to join the largest QRP CW Club in the world!! We currently have 7100+
members in: All 50 States - 9 VE Provinces - 100 Countries. Sign up on the
NAQCC website today (http://naqcc.info/) and receive a handsome certificate,
with your membership number on it, which is good for life.

Come join us and have a real good time!


72/73 de Larry W2LJ
NAQCC #35

for NAQCC
http://naqcc.info/


Circket Completed

Jon Jesse
 

My cricket is built and ready for a QSO.  Worked FB when power first applied like every other 4SQRP that I have built.

Such quick and easy build.  I highly recommend even for a first timer.

Kudos to the whole Cricket team.

W1AW is creaming the receiver.

Going out for dinner with the wife and will give a yell on 3579 later on.

I'll order some crystals to get me away from W1AW and watch their Sked so I know when I can't use this freq. The digital crud should be interesting too.

73,

Jon WS1K



Re: 3560 Crystals from eBay

Curt
 

I ordered 4 small crystals from 3rd Planet.  3.535, 3.550. 3.560, 3.5797.  None oscillate in the Cricket.  All oscillate in my G3UUR crystal oscillator ( 2n4401 ).  The colorburst crystal that came with the kit works fine, so that's all that counts. 

72, Curt KB5JO


Re: BCB HI-Pass Filter

WA0ITP
 

Abt anything that will fit #26 works ok.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 5/9/2017 2:08 PM, RWeeks neotoxo54@... [4sqrp] wrote:

 
I love playing 20 questions... :-(

Thanks for the info on the toroids and windings...by chance, do you remember the wire size?

SENT FROM MY IPAD MINI
Rocky Weeks, AF5AF
East Arkansas Fur Takers, FTA Chap 29B
Arkansas Trappers Assoc.
South Western Arkansas Fur Takers, FTA Chap 29A

On May 9, 2017, at 13:42, WA0ITP wa0itp@... [4sqrp] <4sqrp@...> wrote:

 

GA Jim

18t T50-2  is what I used  20t T37-2 if you're rather use those.

Good luck and let us know how it works for you.

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 5/9/2017 1:28 PM, 'Jim Sheldon' w0eb@... [4sqrp] wrote:
 

Hi Terry,
How many turns & what core for the two 1.66uh inductors?  

Jim - W0EB

------ Original Message ------
From: "WA0ITP wa0itp@... [4sqrp]" <4sqrp@...>
Sent: 5/9/2017 12:50:53 PM
Subject: [4sqrp] Fwd: BCB HI-Pass Filter [3 Attachments]

GM Dave,

Attached is a Hi Pass Filter  that I've used for years when needed.  I'm using it now on the my Cricket. two kilowatt bcb stations, each abt 2 miles away make it mandatory for me on DC rcvrs.

It's an easy Manhattan build. GL and let us know how it goes.

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com




Re: BCB HI-Pass Filter

RWeeks <neotoxo54@...>
 

I love playing 20 questions... :-(

Thanks for the info on the toroids and windings...by chance, do you remember the wire size?

SENT FROM MY IPAD MINI
Rocky Weeks, AF5AF
East Arkansas Fur Takers, FTA Chap 29B
Arkansas Trappers Assoc.
South Western Arkansas Fur Takers, FTA Chap 29A

On May 9, 2017, at 13:42, WA0ITP wa0itp@... [4sqrp] <4sqrp@...> wrote:

 

GA Jim

18t T50-2  is what I used  20t T37-2 if you're rather use those.

Good luck and let us know how it works for you.

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 5/9/2017 1:28 PM, 'Jim Sheldon' w0eb@... [4sqrp] wrote:
 

Hi Terry,
How many turns & what core for the two 1.66uh inductors?  

Jim - W0EB

------ Original Message ------
From: "WA0ITP wa0itp@... [4sqrp]" <4sqrp@...>
Sent: 5/9/2017 12:50:53 PM
Subject: [4sqrp] Fwd: BCB HI-Pass Filter [3 Attachments]

GM Dave,

Attached is a Hi Pass Filter  that I've used for years when needed.  I'm using it now on the my Cricket. two kilowatt bcb stations, each abt 2 miles away make it mandatory for me on DC rcvrs.

It's an easy Manhattan build. GL and let us know how it goes.

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com



(No subject)

Tommy Gober
 

Sorry about that, that should be:
No station is an island entire of itself;
every station is a piece of the ionosphere, a part of the whole;
if a final be burned out by a mismatch, ham radio is the less,
as well as if a radio club were, as well as any manner of thy friends or of thine own were;
any SK's death diminishes me, because I am involved in ham radio.

So therefore ask not for whom the CQ calls;
it calls for thee.

On Tue, May 9, 2017 at 2:02 PM, Tommy Gober <tommy@...> wrote:
No station is an island entire of itself;
every station is a piece of the ionosphere, a part of the whole;
if a final be burned out by a mismatch, ham radio is the less,
as well as if a radio club were,as well as any manner of thy friends or of thine own were;
any SK's death diminishes me,
because I am involved in mankind.
And therefore never send to know for whom
the bell tolls; it tolls for thee. 

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