Date   

Re: observation

n5ib_2
 

Yes, the real Parasets did have a mechanical reduction drive - a couple of washers under the small knob pinched a skirt on the periphery of the big tuning dial/knob. I played around with trying to homebrew one for my "real" Paraset I hope yet to build. The reduction seemed like it would be maybe 8:1 or 10:1, with a 180 degree max shaft rotation of the main tuning cap.

The tuning range was from 3.3 to 7.6 Mc, So if it was even as much as 10:1 that would be 4.3 Mc per 5 revs, or a bit over 650 kc for a 270 degree rotation of the tuning knob (compare that to our puny 150 kc per 270 degrees on the BJ). And you guys were worrying about the BJ's fast tuning!  :^))

Of course, remember that London had powerful transmitters with multiple rhombics, so it wouldn't have been so hard to find London. And agent-to-agent contacts were pretty much taboo, so Parasets didn't need to find other Parasets.

N5IB




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

Reading 'The Secret Wireless War', I came to [page 92, paragraph 7) a sentence about the 'Paraset' (Whaddon MkVII) saying -

"With no 'fine tuning' control, the receiver was not easy to use by anyone lacking 'safe-breaker's fingers'."

My first thought was "what the heck kind of fingers are those?".   A google search turned up a link about "Safe Crackers", so that made the light go and I realized what the writer meant.

Also, his comment about no "fine tuning" must have meant no "electrical" fine tuning, because looking at a photo of a MkVII Paraset on the following page, there appears to be a fine tuning knob of sorts, albeit a mechanical method.

Comments please...



Re: Antennas and equipment issues...

David Martin <davemrtn@...>
 

Sorry about the mis-spelling, it should have been "Wahr".


On 1/23/2017 17:54, David Martin davemrtn@... [4sqrp] wrote:
 

Good explanation Dave.   Very creative.

Apparently  there is a latitude where north is too far north.

I say that because I think Terry WA0ITP has had some success using Whar antennas in Ottumwa Iowa.

NA1MH


On 1/23/2017 17:43, David Wilcox djwilcox01@... [4sqrp] wrote:
 
A "Wahr" is a type of wire us mostly in the South for antenna building.  It seems to hold up better in the tornadoes and hurricanes.  The Wharman sells it from N. Carolina.  I used to use it but it doesn't like the cold climate in N. michigan.

Dave K8WPE

On Jan 23, 2017, at 6:39 PM, Bry Carling af4k@... [4sqrp] <4sqrp@...> wrote:

 

What is a "Wahr?"




From: 4sqrp@... <4sqrp@...> on behalf of Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...>
Sent: Monday, January 23, 2017 1:27 PM
To: 4sqrp@...
Subject: [4sqrp] Antennas and equipment issues...
 
 
Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
Welcome to the web home of the Four States QRP Group, devoted to low power (QRP) amateur radio building and operation. Club Call Sign WQ5RP
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186

--
David Martin - NA1MH - Mountain Home, Ar. -----------------------------------------

--
David Martin - NA1MH - Mountain Home, Ar. -----------------------------------------


Re: Antennas and equipment issues...

David Martin <davemrtn@...>
 

Good explanation Dave.   Very creative.

Apparently  there is a latitude where north is too far north.

I say that because I think Terry WA0ITP has had some success using Whar antennas in Ottumwa Iowa.

NA1MH


On 1/23/2017 17:43, David Wilcox djwilcox01@... [4sqrp] wrote:
 
A "Wahr" is a type of wire us mostly in the South for antenna building.  It seems to hold up better in the tornadoes and hurricanes.  The Wharman sells it from N. Carolina.  I used to use it but it doesn't like the cold climate in N. michigan.

Dave K8WPE

On Jan 23, 2017, at 6:39 PM, Bry Carling af4k@... [4sqrp] <4sqrp@...> wrote:

 

What is a "Wahr?"




From: 4sqrp@... <4sqrp@...> on behalf of Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...>
Sent: Monday, January 23, 2017 1:27 PM
To: 4sqrp@...
Subject: [4sqrp] Antennas and equipment issues...
 
 
Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
Welcome to the web home of the Four States QRP Group, devoted to low power (QRP) amateur radio building and operation. Club Call Sign WQ5RP
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186

--
David Martin - NA1MH - Mountain Home, Ar. -----------------------------------------


Re: Antennas and equipment issues...

keith ford
 

On Monday, January 23, 2017, 17:46, Jim Sheldon w0eb@... [4sqrp] <4sqrp@...> wrote:

 

That's Redneck speak for "Wire" - LOL

W0EB

On Jan 23, 2017, at 5:39 PM, Bry Carling af4k@... [4sqrp] <4sqrp@...> wrote:

What is a "Wahr?"




From: 4sqrp@... <4sqrp@...> on behalf of Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...>
Sent: Monday, January 23, 2017 1:27 PM
To: 4sqrp@...
Subject: [4sqrp] Antennas and equipment issues...
 
 

Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
Welcome to the web home of the Four States QRP Group, devoted to low power (QRP) amateur radio building and operation. Club Call Sign WQ5RP
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Re: Antennas and equipment issues...

Jim Sheldon
 

That's Redneck speak for "Wire" - LOL

W0EB

On Jan 23, 2017, at 5:39 PM, Bry Carling af4k@... [4sqrp] <4sqrp@...> wrote:

What is a "Wahr?"




From: 4sqrp@... <4sqrp@...> on behalf of Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...>
Sent: Monday, January 23, 2017 1:27 PM
To: 4sqrp@...
Subject: [4sqrp] Antennas and equipment issues...
 
 

Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
Welcome to the web home of the Four States QRP Group, devoted to low power (QRP) amateur radio building and operation. Club Call Sign WQ5RP
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Re: Antennas and equipment issues...

David Wilcox
 

A "Wahr" is a type of wire us mostly in the South for antenna building.  It seems to hold up better in the tornadoes and hurricanes.  The Wharman sells it from N. Carolina.  I used to use it but it doesn't like the cold climate in N. michigan.

Dave K8WPE

On Jan 23, 2017, at 6:39 PM, Bry Carling af4k@... [4sqrp] <4sqrp@...> wrote:

 

What is a "Wahr?"




From: 4sqrp@... <4sqrp@...> on behalf of Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...>
Sent: Monday, January 23, 2017 1:27 PM
To: 4sqrp@...
Subject: [4sqrp] Antennas and equipment issues...
 
 

Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
Welcome to the web home of the Four States QRP Group, devoted to low power (QRP) amateur radio building and operation. Club Call Sign WQ5RP
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Re: Antennas and equipment issues...

Bry Carling <af4k@...>
 

What is a "Wahr?"




From: 4sqrp@... <4sqrp@...> on behalf of Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...>
Sent: Monday, January 23, 2017 1:27 PM
To: 4sqrp@...
Subject: [4sqrp] Antennas and equipment issues...
 
 

Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
www.4sqrp.com
Welcome to the web home of the Four States QRP Group, devoted to low power (QRP) amateur radio building and operation. Club Call Sign WQ5RP
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


observation

David Martin <davemrtn@...>
 

Reading 'The Secret Wireless War', I came to [page 92, paragraph 7) a sentence about the 'Paraset' (Whaddon MkVII) saying -

"With no 'fine tuning' control, the receiver was not easy to use by anyone lacking 'safe-breaker's fingers'."

My first thought was "what the heck kind of fingers are those?".   A google search turned up a link about "Safe Crackers", so that made the light go and I realized what the writer meant.

Also, his comment about no "fine tuning" must have meant no "electrical" fine tuning, because looking at a photo of a MkVII Paraset on the following page, there appears to be a fine tuning knob of sorts, albeit a mechanical method.

Comments please....


--
David Martin - NA1MH - Mountain Home, Ar. -----------------------------------------


Re: Antennas and equipment issues...

David Wilcox
 

Just open your MFJ switch, clean the contacts, realign the parts, and reassemble.  Make sure everything is tight.  You will be good for another couple of years.  I won't buy anything but an alpha delta now but I still use my MFJs at home in the shack.  How did I find this out?  Was out in the field for communications for a cross country run when my reception started to be intermittent.  Did a quick fix in the field and finished the day.  There is a steel spring like finger with a contact at the end and if aggressively cranked you can bend the spring and disrupt the contact (at least on the two way antenna switch).  Some of my old B & W switches haven't failed me in 50 years.  They just don't look as pretty.

Dave K8WPE

On Jan 23, 2017, at 1:27 PM, Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...> wrote:

 

Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Bayou Jumper Serial Numbers and Agent Certificates

n5ib_2
 

The first batch of serial number decals and agent certificates went out in today's post. All of the "double-oh" agents have been assigned, with their "License to Thrill"


Who will be the first to earn "WADO"  ??  Worked All Double Oh"


I'm sending two decals (you'll need to cut them apart) in case one gets messed up or you want to practice.

They are taped to the request slip that you'd sent me. These are water-slide decals, just like the ones you used on your model airplanes. The film is clear, with black or gray printing.


The details on registering your BJ for a serial number are at

http://4sqrp.com/kits/Bayou%20Jumper/bjn5ibsernumapp_1-5-2017.pdf


73,

and remember... you have not read anything about secret agents... and I was never here...


N5IB



Re: Test Mssg from Radar O'Reilly's Home Town

Wayne Dillon
 

Yep, got it here
Wayne - NQ0RP

On Mon, Jan 23, 2017 at 12:27 PM, WA0ITP wa0itp@... [4sqrp] <4sqrp@...> wrote:
 

I seem to be having difficulty seeing posts. Hope this one is posted to
the Group.

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




--
 
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
 
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Antennas and equipment issues...

Wayne Dillon
 

Good afternoon all,
Well I set to to try and discover what had gone amiss with my (fairly) new 124'6" wahr and why I couldn't get it to go on 80/160. It used to, it really did. My G5RV Jr was still tuning up on 40m but was showing signs of not wanting to on anything other than 40/20m. I had a sinking feeling that my AT100ProII was giving trouble  so I decided to eliminate one component at a time. Where the antenna co-ax feeders come into the shack I have a 4 position co-ax switch. I disconnected the 124'6" wahr and bypassed the switch with a spare female to female connector. Selected 80m on the radio and hey presto, tuned right up. The same on all bands, works a treat. Performed the same bypass with the G5RV Jr and again it tuned on all bands 40-6 (as usual 15m was difficult). So the issue was with the 4 way antenna switch. Now for the kicker, it is an MFJ switch, big solid cast body, they are getting it back with a seriously ticked off note telling them that their product should last longer than about a year. I should have known, I have had trouble with every MFJ antenna switch I've ever used, you'd think I'd have known better than to get another. Lesson learned, I should have forked over the extra $10.00 and bought an Alpha-Delta, I've never heard anything bad about that product.
Bottom line, I'll help Paul out this week (and following weeks) with an extra 80m net, 40 doesn't look like improving anytime soon so we'll leave 40m alone for a while.
so, Wednesday evening, 19:30 local 3.564 and let's see if we can scare up a little action on 80. I hope Paul can call an 80m net at 20:00 local, it'll be interesting to see what shakes loose.
Blessings all es vy 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
 
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Test Mssg from Radar O'Reilly's Home Town

WA0ITP
 

I seem to be having difficulty seeing posts. Hope this one is posted to the Group.

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


Re: Almost done [2 Attachments]

Tim
 

Yes the ten turn pot with digital readout made tuning much easier.

I also made a chart for each of my crystals so I was would start very close to crystal frequency.  No spot needed!

Now to work on a side tone add on.

Tim W4YN


Pig Rig

bobby rolph
 


---------- Forwarded message ----------
From: Bobby Rolph <rolph981@...>
Date: Mon, Jan 23, 2017 at 8:59 AM
Subject: Pig Rig
To: "4sqrp-ae5k.us-confirm+17376ada7efd068efc7292d847f938480b9e745a@..." <4sqrp-ae5k.us-confirm+17376ada7efd068efc7292d847f938480b9e745a@...>


I put my Pig Rig #160 on the air for a little while yesterday. I need to turn the sidetone down on the rig but I can not remember which resistor that I need to change. Would someone in the group please advise me of this? 72/3 de KB4QNR

Bobby




Re: Crystals - a little info

n5ib_2
 

Bry is absolutely correct.
You won't achieve anywhere close to those back of the envelope estimates.

Remember that those motional L and C values are not really an inductor and capacitor, but the electrical analogy of a complex mechanical system. If you try to force the mechanical system to oscillate very far from its natural frequency it quickly gives up in disgust.

Try to push your grandkid on a swing at anything other than the frequency the swing wants to go, and see how fast you get tired  :^))

N5IB



---In 4sqrp@..., <af4k@...> wrote :

The oscillator will stop long before those kinds of VXO values are achieved. You will be lucky to pull them 1 kHz and still have a decent signal.


I always look for BJ stations around 7121.3 and have had luck so far.


Bry AF4K







Re: Almost done

Bry Carling <af4k@...>
 

We have some single and double crystal sockets available for FT243 / FT241 type crystals at:


http://af4k.com/crystal_sockets.htm

af4k.com
AF4K's CRYSTAL SOCKETS ORDER PAGE. Amateur radio crystal sockets available for FT243, hc6u, FT171B, DC34, DC35, CR-1/A, hc25, hc50 and many other types.


Bry AF4K




From: 4sqrp@... <4sqrp@...> on behalf of Jeffrey Peters k9jp.radio@... [4sqrp] <4sqrp@...>
Sent: Sunday, January 22, 2017 1:33 PM
To: 4sqrp@...; David Wilcox
Subject: Re: [4sqrp] Almost done
 
 

Hello Again,

I just measured my Crystal QSYer adapter using my Viking and a crystal marked 7.110 MHz.  Measurement s were made on both a counter and spectral display on HRD.

The crystal oscillates at 7.1108 on the straight through side.  The frequency change on the side with the cap. is 7.1108 to 7.1113 or about 500 cycles, if my math is correct.  The cap. is measured at 6 to 60 pF and I have an extra one here if you want to build one yourself. I know I have extra FT-241 type crystals to use as the plug and I might have either a single or double FT-243 type socket. 

Let me know, Jeff

On Sun, Jan 22, 2017 at 9:07 AM, David Wilcox djwilcox01@... [4sqrp] <4sqrp@...> wrote:
 

I would like to see a close up of the adaptor to vary the crystal frequency a little

Dave K8WPE


On Jan 22, 2017, at 8:43 AM, 'Jim Sheldon' w0eb@... [4sqrp] <4sqrp@...> wrote:

 

WOW Tim,
That's beautiful - excellent joinery in the internal partitions too!  I have one of the big boxes and I might just attempt something similar.  I see you also put a digital knob pot on yours.  Sure makes it tune smooth doesn't it?

Jim - W0EB

------ Original Message ------
From: "w4yn@... [4sqrp]" <4sqrp@...>
Sent: 1/21/2017 9:57:37 PM
Subject: [4sqrp] Almost done [2 Attachments]

All that is left is secrete Spy Code Engraving.

Tim W4YN






--
Not all of me will die - - - The good I do will live forever.  <><


Re: Crystals - a little info

Bry Carling <af4k@...>
 

The oscillator will stop long before those kinds of VXO values are achieved. You will be lucky to pull them 1 kHz and still have a decent signal.


I always look for BJ stations around 7121.3 and have had luck so far.


Bry AF4K



From: 4sqrp@... <4sqrp@...> on behalf of n5ib@... [4sqrp] <4sqrp@...>
Sent: Sunday, January 22, 2017 2:14 PM
To: 4sqrp@...
Subject: [4sqrp] Crystals - a little info
 
 

As we've found, most of the crystals supplied with the Bayou Jumper, though nominally 7122, oscillate a few hundred Hz low. A number of folks have used small series capacitors to pull the frequency upwards somewhat.

A little info and tutorial...

A crystal in the 7 MHz range can be reasonably represented by a series RLC circuit, with a bit of capacitance shunting the whole affair. The principal quantities we are concerned with are Rs (series equivalent resistance), Lm (motional inductance), Cm (motional capacitance) and Co, the shunt, or holder, capacitance.Typical values for crystals with acceptable Q might be:
   Rs = 10 ohms
   Lm = 25 millihenries (yes, milli, not micro)
   Cm = 0.02 pF (yes, much less than a pF)
   Co = 5 pF

Think about what happens if you add some capacitance in series. The result is to reduce the net capacitance. But the amount will be small, since any amount you can solder in will be at least a couple of pF or so, much bigger than Cm. Lets use those values above and do a little math for a "back of the envelope" estimate:

Ignoring Rs and Co for the time being, 22 mH and 0.017 pF resonate at  7117.623 kHz

Now add in series about 4 pF (about the bottom end of a 4-50 pF trimmer)
the 0,02 pF capacitance becomes 0.01990 pF
and the new resonance would be theoretically 7135.487 kHz  --  18 kHz higher

    probably wouldn't happen, the crystal would quit

How about the 50 pF upper end of the trimmer

     now you'd get 0.1999 pF and 71199.049 kHz


How much you can actually achieve of those quick estimates depends a lot on the crystal itself - cut, mounting, quality, etc. The HC-49S types likely won't move as much as the HC-49U, and a real FT-243 would be quite different.


If you can obtain realistic values for Rs, Lm, Cm, and Co,  you could use tools like LTSpice to try and predict what you'd need to move a crystal, bearing in mind that what you achieve in practice will almost certainly fall short.


N5IB





Easy Keyer 2i News

Walter - K5EST
 

Please forward to your club or to your friends in need!

The Easy Keyer 2i, is our newest kit offering. The EK2i is the tiny version of  the stand alone Easy Keyer. Difference the EK2i is only 1" x 1.5" (thru hole) and 1"x.75" (SMT)

This version of the EZKeyer II is designated the "i" version, and is designed to install Inside a rig's enclosure. Building on the very popular EZKeyer series, this new Morse code memory keyer is intended to be built into existing rigs which don't have a keyer - or integrated into new projects. New small printed circuit boards, and a new 8 pin processor are featured.
 
There are two versions, thru hole and SMT. Both are the same price, so be sure to choose the Paypal option for the keyer you are purchasing.

The current drain is so low that the keyers can be installed inside a portable rig with no fear that they will affect battery life.

Another noteworthy feature is the Stuck-key shutdown after 72 continuous DITs, DAHs, or messages. Occasionally a stuck paddle is heard on the air continuously sending for hours. The "stuck paddle shutdown" feature will turn off the EasyKeyer 2-i and the rig its keying after 72 repetitions. 72 is the best number, don't you think?

Thank you for considering the EK2i as your next keyer project. The sales of 4SQRP help fund the annual mid-west QRP Conference (OzarkCon) April 7-8, 2017. OzarkCon website is:

72/73....Walter Dufrain - K5EST     ....    4SQRP Kit Mgr




VE100VIMY/VE4

James W. Hodgson
 

From Kingston, Ontario, Canada ARC

Lee is currently operating USB Voice on 14.275 MHz
Loud and Clear

73
James W. Hodgson