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Re: DMR Net
It was working Keith. You may need to test your setup? Johnny ACØBQ
On Thu, Jan 7, 2021 at 9:19 PM Robert <e1dslr@...> wrote:
--
Check out the 4SQRP website at 4sqrp.com
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Re: DMR Net
Robert
we where there from 21:00 to about 21:20 cst
Did the new DMR net complete. I was monitoring the talk group but did not get any activity.
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Re: For what is a crystal spotter used?
griffithsesq.robert
Thanks Jim. After reviewing the schematic diagram of your Crystal Spotter, I was trying to figure out how/where it was connected to the Bayou Jumper. A Bayou “Blue Tooth” connection. Neat! 73. Griff NE3I
toggle quoted messageShow quoted text
Robert Alan Griffiths
On Jan 7, 2021, at 3:51 PM, Jim, N5IB <n5ib@juno.com> wrote:
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Re: What Kit's would be nice for 2021
Tom Sevart
On 1/7/2021 19:19, Johnny AC0BQ wrote:
Sound nice Tom.Here's a pic of mine. I mounted it in a box which is angled, the back being higher than the front. I think it was designed to be used in this manner. In the pic you can see a crystal in the crystal oscillator socket and the frequency counter reading the crystal's frequency. All the connectors for the different functions are on the back along with a 9V battery mounted externally. Building the test set this way makes it very handy & easy to use. -- Tom Sevart N2UHC St. Paul, KS -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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Re: What Kit's would be nice for 2021
Tom Sevart
On 1/7/2021 19:19, Johnny AC0BQ wrote:
Sound nice Tom.Here's a pic of mine. I mounted it in a box which is angled, the back being higher than the front. I think it was designed to be used in this manner. In the pic you can see a crystal in the crystal oscillator socket and the frequency counter reading the crystal's frequency. All the connectors for the different functions are on the back along with a 9V battery mounted externally. Building the test set this way makes it very handy & easy to use. -- Tom Sevart N2UHC St. Paul, KS -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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DMR Net
Keith Jenkins
Did the new DMR net complete. I was monitoring the talk group but did not get any activity.
73 K9JKJ
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Re: A simple frequency spotting modification kit for legacy Bayou Jumpers.
Inquiring minds want to know...but I'm in WD4ON
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.
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Re: What Kit's would be nice for 2021
Sound nice Tom. I never thought of that? I just leave mine open, I have it mounted at a angle on some plexiglass.
On Thu, Jan 7, 2021 at 7:17 PM Tom Sevart <tmsevart@...> wrote: On 1/6/2021 21:01, Johnny AC0BQ wrote: --
Check out the 4SQRP website at 4sqrp.com
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Re: What Kit's would be nice for 2021
Tom Sevart
On 1/6/2021 21:01, Johnny AC0BQ wrote:
Hello TomI don't know if you've ever seen mine or not, but I made it a lot more user-friendly by putting it in a box and using a multi-position rotary switch to choose the different functions. I really like using it to test crystals with the crystal oscillator and frequency counter. -- Tom Sevart N2UHC St. Paul, KS -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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Re: What Kit's would be nice for 2021
Tom Sevart
On 1/6/2021 20:52, bigusmith via groups.io wrote:
OK, I give, what is a NDB?Non-Directional Beacon. They are aircraft beacons found below the MW broadcast band, from around 200-400 kHz, and repeat a three letter ID in MCW. They were pretty common and plentiful 20-30 years ago but many have been decommissioned. I think GPS is replacing them. -- Tom Sevart N2UHC St. Paul, KS -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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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
>
>
>
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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
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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
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Re: Crystal Spotter kit coming soon!
griffithsesq.robert
Terrific Johnny, thanks. I would like to pre-order 2 of them. 73. Griff NE3I
toggle quoted messageShow quoted text
Robert Alan Griffiths
On Jan 7, 2021, at 8:31 AM, Johnny AC0BQ <jomatlock@...> wrote:
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Re: What Kit's would be nice for 2021
WA0ITP
Thank you John, appreciate the info.
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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.
toggle quoted messageShow quoted text
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:
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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
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Re: What Kit's would be nice for 2021
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
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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
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Re: 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
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