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Messages 66 - 100 of 100   Oldest  |  < Older  |  Newer >  |  Newest
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66
Hi all, finally after some days I was able to find again the original Harry's page, the link is right: http://web.telia.com/~u85920178/ and in the Menu you...
Alessandro Santucci
i0skk
Offline Send Email
Aug 30, 2006
7:34 am
67
Hi - I have been putting some of our ideas into practice, and have made my first attempt at a H-mode mixer rx. The circuit is at - ...
tigger
g4oep
Offline Send Email
Sep 9, 2006
9:26 am
68
Hello Andy ... Nice work, and very interesting how you have arranged the transformers in the H-mode mixer. Interesting and worrying! I don't completely...
Hans Summers
hanssummers2000
Offline Send Email
Sep 9, 2006
9:58 am
69
... Hi Hans - It is difficult to reply to this without going into a complete explanation of how the h-mode mixer works. Basically, in this system there is no...
tigger
g4oep
Offline Send Email
Sep 9, 2006
11:14 am
70
Hi all. I realise that the ideas behind my designs might not be obvious, so I have written some notes on my understanding of commutative mixers - ...
tigger
g4oep
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Sep 9, 2006
5:41 pm
71
Hi Andy, I read your new page, thanks for putting in the effort to write these notes. I think I understand most of it but I probably still need to re-read it a...
Hans Summers
hanssummers2000
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Sep 11, 2006
4:36 pm
72
... Searching the net: Apparently there is a rule of thumb that says the third order intercept is 10 to 12 dB above the 1dB compression point: ...
kl7r
Offline Send Email
Sep 11, 2006
9:03 pm
73
Hi all I have just loaded on files my actual RX schematic . 73 de Paolo IZ1KXQ / I1DFS...
Paolo Saia
postacarlotta
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Sep 14, 2006
9:57 am
74
... http://www.downeastmicrowave.com/PDF/IP3.PDF#search=%22calculate%20third%20order%20intercept%22 ... ...
tigger
g4oep
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Sep 14, 2006
10:22 am
75
... This makes nonsense of the claim of 54dBm for 'our' mixer since 42dBm is 15.8W, or 40v pk into 50 ohms. This mixer cannot possibly be linear beyond an...
tigger
g4oep
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Sep 14, 2006
10:32 am
76
... looking at the philips data sheet for the sa602, this difference is almost exactly 12dB Andy...
tigger
g4oep
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Sep 14, 2006
10:56 am
77
Hi - There has been a wave of new members (5 in 24 hrs) joining the group, and I would like to welcome them - I hope they will find (and existing members...
tigger
g4oep
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Sep 22, 2006
6:29 am
78
... [snip] ... [snip] ... I think we're all coming in from the EMRFD group since, Stan, ak0b, posted in message http://groups.yahoo.com/group/emrfd/message/157...
w0uhf
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Sep 22, 2006
6:11 pm
79
Hi - I am still ruminating over my rx design (look here - http://g4oep.atspace.com/qrss/qrss.htm ) and am beginning to realise that the inductors in the front...
tigger
g4oep
Offline Send Email
Sep 23, 2006
8:02 am
80
Hi all I have just loaded on files my actual RX schematic . I added the tiny chip MAX2620 as XTAIL Oscillator . 73 de Paolo IZ1KXQ / I1DFS...
Paolo Saia
postacarlotta
Offline Send Email
Oct 10, 2006
4:36 pm
81
Hi Paolo, sri, cannot find the schematics in "Yahoo files". Chris, DL6JAN ... From: Paolo Saia To: qrsstxrx@yahoogroups.com Sent: Tuesday, October 10, 2006...
Christian (DL6JAN)
christianproehl
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Oct 11, 2006
5:59 am
82
... Hi Chris, Just had a look and it's on there now. Les, G3VYZ...
Les
g3vyz
Offline Send Email
Oct 11, 2006
8:22 am
83
Hi Chris , for local problems the file uploading failed. Now the OCTOBER version of my 30mt_QRSSRX is available on "files". I hope it will be useful. 73 de...
Paolo Saia
postacarlotta
Offline Send Email
Oct 11, 2006
8:32 am
84
I was reading all your message and I am starting now to develop my own RX .......in the next future more about that... 73 de IK4GBU-Valerio...
ik4gbu
Offline Send Email
Oct 24, 2006
1:43 pm
85
Hallo guys, this message is in order to inform you that at this time we are publishing an "Home Made Newsletter" Called HMN (Home Made News), and we have a ...
i0skk
Offline Send Email
Feb 15, 2007
9:56 am
91
hello. Does anyone konw where i can et hold of a 7MHz crystal? I'd like to build the QRPp QRSS TX featured in the latest SPRAT magazine. Thanks for your help. ...
g4efe
Offline Send Email
Jun 3, 2008
10:45 pm
92
I have some in HC49U. If you like contact me pm with quantity and your address for postal calculation. regards - Henry ... -- www.ehydra.dyndns.info...
ehydra
otc_friend
Offline Send Email
Jun 3, 2008
10:56 pm
93
Evidently, VK5OQ has several. Sorry - don't have an email address for him, but he's good on QRZ.COM as far as I know. As usual, my first stop for surplus...
John Kirk
vk4tj
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Jun 3, 2008
11:02 pm
94
Looking for a site with activity on MEPT circuits interested in G3zjo unit he shows in the You Tube videos Stan ak0b...
Stan
w9ifz
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Jun 29, 2008
9:16 am
95
... It all happens on the QRSS Knights mail list: http://mail.cnts.be/mailman/listinfo/knightsqrss_cnts.be regards Clayton VK1TKA...
Clayton
claytong_nz
Offline Send Email
Jun 29, 2008
11:38 pm
96
Hi, I am new to this group, I joined recently after searching the web for stuff and finding the website of G4OEP ( Dr. Andrew Smith ). I am a licensed amateur...
Ivan
ivanz_us
Online Now Send Email
Jul 30, 2008
7:19 pm
97
Hi Ivan - Thanks for the email. Re QRSS, I have been off the air in this mode for about a year, but I was extremely enthusiastic about it for a while - the...
Dr Andrew Smith
g4oep
Offline Send Email
Jul 31, 2008
10:49 am
98
I am sorry I did not send anything before, but I am the clubhouse columnist for QRP Quarterly. If there are club members in this group, how about swending me...
Timothy Stabler
wb9nlz
Offline Send Email
Jul 31, 2008
2:51 pm
99
Hi Tim - thanks for the email. This group is only moderately active. It was created in response to a particular moment when several of us had a common...
Dr Andrew Smith
g4oep
Offline Send Email
Jul 31, 2008
4:52 pm
100
Hi all , after a huge silence ,I am here again with a nice VFO called BLUBERRY . It is a small evaluation board for a Cypress chip. It ca be programmed easily...
Paolo Saia
postacarlotta
Offline Send Email
Apr 18, 2009
4:40 pm
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