Date   

Re: For what is a crystal spotter used?

Bob Parr
 

Thank you for such a through explanation!
 
Bob
KG5GTE

> A crystal spotter is just a simple oscillator which will emit a
> very low level signal when a crystal is attached. It's used to
> locate the crystal's operating frequency in a receiver, when the
> receiver is not slaved to the same oscillator as its companion
> transmitter.
>
> It's very useful with the Bayou Jumper, which has a wide pass band
> regenerative receiver, completely independent of the transmitter.
> If you're calling CQ with a Bayou Jumper you need to know where on
> the receiver dial to look for replies, since most operators using
> modern VFO controlled transceivers will zero beat your signal. It
> also helps to find out if there is other activity on your crystal
> frequency so you won't QRM them.
>
> The spotter does not have to be connected to the receiver, just
> placed nearby. Enough signal leaks out to be easily heard.
>
> BTW - whenever you are the "other op" trying to call and work a
> Bayou Jumper, remember that poor fellow has a regen. It's wide as a
> barn door, very sensitive, but he has to manually throw a switch
> and then perhaps tweak the tuning a bit to get back to where he
> was.  His or her tuning may be as much as a couple kHz or more from
> a dead-on zero beat. So the typical "drop your call once" won't cut
> it.
> Sending  "callsign  callsign   de   mycall  mycall   AR" is makes
> it much easier for that poor schmuck  :^))
> Back in the "spy days" the home station would call the outstation
> for several minutes to allow time for the hard pressed agent to get
> everything tweaked up.
>
> second BTW - because of all this, a Jumper-to-Jumper QSO is a real
> challenge and an accomplishment to be savored.
>
> Jim, N5IB
> 007
> Bayou Jumper almost WAS....   -AK
>
>
>


For what is a crystal spotter used?

Jim, N5IB
 

A crystal spotter is just a simple oscillator which will emit a very low level signal when a crystal is attached. It's used to locate the crystal's operating frequency in a receiver, when the receiver is not slaved to the same oscillator as its companion transmitter.

It's very useful with the Bayou Jumper, which has a wide pass band regenerative receiver, completely independent of the transmitter. If you're calling CQ with a Bayou Jumper you need to know where on the receiver dial to look for replies, since most operators using modern VFO controlled transceivers will zero beat your signal. It also helps to find out if there is other activity on your crystal frequency so you won't QRM them.

The spotter does not have to be connected to the receiver, just placed nearby. Enough signal leaks out to be easily heard.

BTW - whenever you are the "other op" trying to call and work a Bayou Jumper, remember that poor fellow has a regen. It's wide as a barn door, very sensitive, but he has to manually throw a switch and then perhaps tweak the tuning a bit to get back to where he was. His or her tuning may be as much as a couple kHz or more from a dead-on zero beat. So the typical "drop your call once" won't cut it.
Sending "callsign callsign de mycall mycall AR" is makes it much easier for that poor schmuck :^))
Back in the "spy days" the home station would call the outstation for several minutes to allow time for the hard pressed agent to get everything tweaked up.

second BTW - because of all this, a Jumper-to-Jumper QSO is a real challenge and an accomplishment to be savored.

Jim, N5IB
007
Bayou Jumper almost WAS.... -AK


Re: Crystal Spotter kit coming soon!

Bob Parr
 

For what is a crystal spotter used?
 
Bob
KG5GTE

> Gm groupIt seems that their is lots of interest in the Crystal
> spotter That Jim N5IB has created.
>
>
> We are ordering the parts and will
> Have them up for sale as soon as the boards arrive.
> I have attached the kit info below.
>
>
> I would like to thank Jim N5IB for allowing us to use his design.
>
>
> 72
> Johnny ACØBQ 


Re: Crystal Spotter kit coming soon!

griffithsesq.robert
 

Terrific Johnny, thanks. I would like to pre-order 2 of them. 73. Griff NE3I 

Robert Alan Griffiths

On Jan 7, 2021, at 8:31 AM, Johnny AC0BQ <jomatlock@...> wrote:

Gm group
It seems that their is lots of interest in the Crystal spotter That Jim N5IB
has created.

We are ordering the parts and will
Have them up for sale as soon as the boards arrive.
I have attached the kit info below.

I would like to thank Jim N5IB for allowing us to use his design.

72
Johnny ACØBQ 



--
Check out the 4SQRP website at 4sqrp.com
<Crystal Spotter 4SARP BOM.xlsx>


Re: What Kit's would be nice for 2021

WA0ITP
 

Thank you John, appreciate the info.

On Thu, Jan 7, 2021 at 1:22 PM John - KK4ITX via groups.io <jleahy00=yahoo.com@groups.io> wrote:
Here's a 2m FM unit that you can try.  Although it's on my website I have never tried it myself....... I thought that some of the locals would enjoy practicing CW but it was a dead end.

Really not very complicated, no bells and whistles.  I probably have most all the parts if you don't and would share them.  You would need a box and some battery power, perhaps a 9V ?


John



Click Here for Zephyrhills Area Amateur Radio Club
Many of life's failures are people who
did not realize how close they were to
success when they gave up.
       Thomas A. Edison     


On Thursday, January 7, 2021, 02:01:24 PM EST, WR9H <herbcase@...> wrote:


I would like to see  a simple 2 meter cw/ kit transmitter that could be heard in our handhelds. 
Herb/WR9H


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Bill Lamm <kd9mdl@...>
Sent: Thursday, January 7, 2021 11:56 AM
To: main@4SQRP.groups.io <main@4SQRP.groups.io>
Subject: Re: [4SQRP] What Kit's would be nice for 2021
 
N2USC "6m xceiver kit would be great, either CW or SSB or both."

I like that idea as well

KD9MDL



--


Re: What Kit's would be nice for 2021

John Lonigro
 

There's a similar device described in the July, 1997 QST that I almost built one time.

Something like that would be fun and easy to build, but the warning about having long ragchews is important.  If your HT has a time-out timer, it would be a good idea to make sure it is turned on.

72,
John, AA0VE

On 1/7/21 1:22 PM, John - KK4ITX via groups.io wrote:
Here's a 2m FM unit that you can try.  Although it's on my website I have never tried it myself....... I thought that some of the locals would enjoy practicing CW but it was a dead end.

Really not very complicated, no bells and whistles.  I probably have most all the parts if you don't and would share them.  You would need a box and some battery power, perhaps a 9V ?


John



Click Here for Zephyrhills Area Amateur Radio Club
Many of life's failures are people who
did not realize how close they were to
success when they gave up.
       Thomas A. Edison     


On Thursday, January 7, 2021, 02:01:24 PM EST, WR9H <herbcase@...> wrote:


I would like to see  a simple 2 meter cw/ kit transmitter that could be heard in our handhelds. 
Herb/WR9H


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Bill Lamm <kd9mdl@...>
Sent: Thursday, January 7, 2021 11:56 AM
To: main@4SQRP.groups.io <main@4SQRP.groups.io>
Subject: Re: [4SQRP] What Kit's would be nice for 2021
 
N2USC "6m xceiver kit would be great, either CW or SSB or both." I like that idea as well KD9MDL


Re: What kit would I like

Frank Perkins <N6CES.r@...>
 

I would like to join the bandwagon for a 10 meter Cricket, with the crystal in the Technician part of the band.
Frank N6CES

On Wed, Jan 6, 2021, 10:18 PM Roland Whitsitt via groups.io <n5vwn=yahoo.com@groups.io> wrote:

I would like a 10 meter and or 6 meter cricket. I’m sure that would be a little (lot) more complicated than the others. But there is nothing out there like it.
de n5vwn






Re: What Kit's would be nice for 2021

John - KK4ITX
 

Here's a 2m FM unit that you can try.  Although it's on my website I have never tried it myself....... I thought that some of the locals would enjoy practicing CW but it was a dead end.

Really not very complicated, no bells and whistles.  I probably have most all the parts if you don't and would share them.  You would need a box and some battery power, perhaps a 9V ?


John



Click Here for Zephyrhills Area Amateur Radio Club
Many of life's failures are people who
did not realize how close they were to
success when they gave up.
       Thomas A. Edison     


On Thursday, January 7, 2021, 02:01:24 PM EST, WR9H <herbcase@...> wrote:


I would like to see  a simple 2 meter cw/ kit transmitter that could be heard in our handhelds. 
Herb/WR9H


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Bill Lamm <kd9mdl@...>
Sent: Thursday, January 7, 2021 11:56 AM
To: main@4SQRP.groups.io <main@4SQRP.groups.io>
Subject: Re: [4SQRP] What Kit's would be nice for 2021
 
N2USC "6m xceiver kit would be great, either CW or SSB or both."

I like that idea as well

KD9MDL


Re: What Kit's would be nice for 2021

WR9H
 

I would like to see  a simple 2 meter cw/ kit transmitter that could be heard in our handhelds. 
Herb/WR9H


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Bill Lamm <kd9mdl@...>
Sent: Thursday, January 7, 2021 11:56 AM
To: main@4SQRP.groups.io <main@4SQRP.groups.io>
Subject: Re: [4SQRP] What Kit's would be nice for 2021
 
N2USC "6m xceiver kit would be great, either CW or SSB or both."

I like that idea as well

KD9MDL


Re: What Kit's would be nice for 2021

Bill Lamm
 

N2USC "6m xceiver kit would be great, either CW or SSB or both."

I like that idea as well

KD9MDL


Re: A simple frequency spotting modification kit for legacy Bayou Jumpers.

 

I would like to report how I frequency spot with my original BJ. I have used the methods described in the instructions (putting the crystal across the antenna input and listening for the heterodyne with the key down in RX). Listening to the heterodyne with the key down in RX is easier than removing the antenna connection and the crystal each to time spot. The problem with my BJ is that the heterodyne whistling zones are far apart and the dead zone is wide. 
I happen to have an old Whiterook Mini-Keyer Model MK-60MB. It contains the Embedded Research chip "Tick-2". First I used it as an iambic keyer to solve the no sidetone issue and it worked well. I then decided to put it in straight key mode while using a straight key.  It also worked well. I then noticed that when I held the straight key down in the RX BJ mode I heard a very, loud heterodyne. It is not only loud but the whistling zones are close with a very small dead zone. Using a second rig and having many BJ QSOs I find that I can not only pick out my transmit frequency very accurately (both upper and lower sideband) but I can also repeat the spotting easily without removing the antenna or even adjusting my Atten or Regen. This certainly helps as my BJ has a mild drift.

I mention this not to have BJ owners buy a Tick-2 keyer (although if you have one laying around give it a try) but to perhaps figure out why it works so well and develop a simple and better frequency spotting mechanism. 

I have the original BJ and I of course did the Keyer mod with TIP42G as seen in the new BJ Rev B instruction manual appendix K

If any of the builders are interested I would be happy to make any measurements needed to find out why it works. 

72
Peter
AA2VG

On Thu, Jan 7, 2021 at 11:20 AM Doug Dukes <dougdukes@...> wrote:
I am not sure even what this is.... but if it is for the Bayou Jumper..... count me in.


--
Peter S. DeLuca
AA2VG


Re: A simple frequency spotting modification kit for legacy Bayou Jumpers.

Doug Dukes
 

I am not sure even what this is.... but if it is for the Bayou Jumper..... count me in.


Re: Bayou Jumper underway

bryan rice
 

Hi my friend i put my filter with the rig a little masking tape drill out hole below the phone jack add switch nice addition for a cw filter. Hope to work u soon agent 049.


On Wed, Jan 6, 2021, 8:53 PM Mark Hansen <iowasailor726@...> wrote:
My kit arrived today and is well underway on the bench. So far it is a fun build. My son and I are going to fashion the wooden box to house it. I have also ordered the  Hi-Per Mite filter. That sounds like a great addition from what I have seen and heard on YouTube.

I wonder if most people build the filter in to the unit or use it as an external addon. That would have the advantage of being used with other rigs. I'm leaning toward building it into the rig and just adding a switch.

I'm in favor of bringing back a version of the Soup'er Up'er as well!

73 - Mark  WA0RXR






Re: Bayou Jumper underway

Johnny AC0BQ
 

Gm Peter
Its a great audio filter. 
It takes power, audio in and out to headphones. 
I built one stand alone and used a double pole double throw switch as a by pass. 
this lets you get close then narrow down on a signal. 
72 
Johnny AC0BQ

On Thu, Jan 7, 2021 at 9:01 AM Peter AA2VG <Petersdeluca@...> wrote:
Mark

I have the original white faced BJ which works extremely well. Nevertheless a filter would be helpful. My Hi-Per-Mite should arrive today or tomorrow. I plan on trying it as an external addition first. If that works, I have a plan for putting it in the BJ wooden suitcase. I can let you know how it goes. 

73
Peter
AA2VG

On Wed, Jan 6, 2021 at 8:53 PM Mark Hansen <iowasailor726@...> wrote:
My kit arrived today and is well underway on the bench. So far it is a fun build. My son and I are going to fashion the wooden box to house it. I have also ordered the  Hi-Per Mite filter. That sounds like a great addition from what I have seen and heard on YouTube.

I wonder if most people build the filter in to the unit or use it as an external addon. That would have the advantage of being used with other rigs. I'm leaning toward building it into the rig and just adding a switch.

I'm in favor of bringing back a version of the Soup'er Up'er as well!

73 - Mark  WA0RXR






--
Peter S. DeLuca
AA2VG


Re: Bayou Jumper underway

 

Mark

I have the original white faced BJ which works extremely well. Nevertheless a filter would be helpful. My Hi-Per-Mite should arrive today or tomorrow. I plan on trying it as an external addition first. If that works, I have a plan for putting it in the BJ wooden suitcase. I can let you know how it goes. 

73
Peter
AA2VG

On Wed, Jan 6, 2021 at 8:53 PM Mark Hansen <iowasailor726@...> wrote:
My kit arrived today and is well underway on the bench. So far it is a fun build. My son and I are going to fashion the wooden box to house it. I have also ordered the  Hi-Per Mite filter. That sounds like a great addition from what I have seen and heard on YouTube.

I wonder if most people build the filter in to the unit or use it as an external addon. That would have the advantage of being used with other rigs. I'm leaning toward building it into the rig and just adding a switch.

I'm in favor of bringing back a version of the Soup'er Up'er as well!

73 - Mark  WA0RXR






--
Peter S. DeLuca
AA2VG


Re: Wednesday Evening 40 and 80 meter Nets - Wed, 01/06/2021 #cal-notice

John - KK4ITX
 

Occasionally a flurry of CQ here in Florida on 40m but quickly gone on 80m S5 Hash.

See ya next week.

John
KK4ITX 
Zephyrhills 

Visit:  www.zaarc.org.   👁

On Jan 6, 2021, at 22:52, Michael Fletcher via groups.io <kl7ixi@...> wrote:

All I heard on 3564 was a high power SKCC making cintacts.
40 meters was the usual bust.
72,
Mike, KL7IXI


On Jan 6, 2021, at 20:00, main@4SQRP.groups.io Calendar <noreply@groups.io> wrote:



Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 6 January 2021
20:00 to 21:00
(GMT-06:00) America/Chicago

Where:
40 and 80 Meters

Organizer:
jomatlock@...

Description:
The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP/ACØBQ 

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 



The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operator is Johnny ACØBQ 

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.


Re: Crystal Spotter kit coming soon!

Peter Dehman
 

Thank's Johnny!!

Also looking forward to ordering a kit!!!!!

72/73, 

Peter - WA1ISA

On Thu, Jan 7, 2021 at 8:46 AM Jeff, K9JP <dek9jp@...> wrote:
Thank you Johnny,

Looking forward to ordering a kit and building it. 

73, Jeff K9JP

On Thu, Jan 7, 2021 at 8:31 AM Johnny AC0BQ <jomatlock@...> wrote:
Gm group
It seems that their is lots of interest in the Crystal spotter That Jim N5IB
has created.

We are ordering the parts and will
Have them up for sale as soon as the boards arrive.
I have attached the kit info below.

I would like to thank Jim N5IB for allowing us to use his design.

72
Johnny ACØBQ 



--
Check out the 4SQRP website at 4sqrp.com



--
Do Something Nice for Someone Else Today.
73 and ZUT (CW forever)


Re: Crystal Spotter kit coming soon!

Jeff, K9JP
 

Thank you Johnny,

Looking forward to ordering a kit and building it. 

73, Jeff K9JP


On Thu, Jan 7, 2021 at 8:31 AM Johnny AC0BQ <jomatlock@...> wrote:
Gm group
It seems that their is lots of interest in the Crystal spotter That Jim N5IB
has created.

We are ordering the parts and will
Have them up for sale as soon as the boards arrive.
I have attached the kit info below.

I would like to thank Jim N5IB for allowing us to use his design.

72
Johnny ACØBQ 



--
Check out the 4SQRP website at 4sqrp.com



--
Do Something Nice for Someone Else Today.
73 and ZUT (CW forever)


Crystal Spotter kit coming soon!

Johnny AC0BQ
 

Gm group
It seems that their is lots of interest in the Crystal spotter That Jim N5IB
has created.

We are ordering the parts and will
Have them up for sale as soon as the boards arrive.
I have attached the kit info below.

I would like to thank Jim N5IB for allowing us to use his design.

72
Johnny ACØBQ 



--
Check out the 4SQRP website at 4sqrp.com


Re: What Kit's would be nice for 2021

Jeff, K9JP
 

How about converting that NDB receiver into a one watt tunable transceiver for 630 meter band? The 630-meter (or 600-meter) amateur radio band is a frequency band allocated by the International Telecommunication Union (ITU) to amateur radio operators, and it ranges from 472–479 kHz,

That would help create interest in low frequency communications and antenna experimentation. For an antenna I might try making a PVC pipe rolled base coil and a short (5-8 foot) stinger.  Something I could hang in my garage and even using two of them to make a right angle dipole. Yes, efficiency will not be great, but think of the fun talking to other area hams (maybe DX the next town over) and maybe make a few new friends as well.

de Jeff K9JP


On Thu, Jan 7, 2021 at 12:14 AM Bob Parr <parr@...> wrote:
...and what do you do with an NDB?
 
Bob
KG5GTE

> Non directional beacon. I had to look it up myself.72,
> John, AA0VE 
>
>
>> On Jan 6, 2021, at 9:05 PM, Johnny AC0BQ <jomatlock@...>
>> wrote:
>>
>>
>> ?Yes I agree 
>> What is NBD?
>>
>>
>> On Wed, Jan 6, 2021 at 8:22 PM Tom Sevart <tmsevart@...>
>> wrote:
>>
>>> On 1/5/2021 21:20, WA0ITP wrote:
>> I enjoy chasing NDBs.  How about an NDB receiver with a nice
>> tight audio band pass filter?
>>
>>
> Also not a bad idea, except that NDB's have a limited life.  More
> and more are being shut down as time goes on, and probably within
> 10 years there won't be any left on the air.
>
>
> --
> Tom Sevart N2UHC
> St. Paul, KS



--
Do Something Nice for Someone Else Today.
73 and ZUT (CW forever)

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