This question stems more from curiosity than intent (I know, if I wanted more power, I don't need to be messing with QRP).

While looking at various kit web sites, I was curious about RF amplifiers and QRP transceiver applications. As in a transceiver with a watt or less and the option of a little more transmit power is desired.

My specific question: If the input to an rf amplifier is from the antenna output of a transceiver, when in receive mode, how does the received signal make it through the amp inbound to the transceiver?

I can visualize the application when a transmitter/amplifier combination is used with a separate receiver and either a manual or automatic antenna switch routes the signal path, but when the switching is internal to a transceiver, I just can't figure out how the transmitted and received signal can move both directions through the amp.

I'll probably be embarrassed by the answers, but just curious.

Jim, K4JDC

 

>5. I use Adobe Photo Shop for bringing in images (from iPhone or
>camera or files) and can then adjust their size, contrast, file type,
>etc for transfer.

If you already have access to PhotoShop, it is fine for doing simple
jobs like those. But you might not want to go out and buy it unless
you really need it's full (and considerable) functionality. I don't
know if they still offer it as a standalone product you load onto your
computer, but if they do, it's probably still quite a few hundred
dollars. (I remember years ago when it was somewhere in the vicinity
of a thousand dollars.)

A much more affordable program is PhotoShop Elements, something that I
used at a previous job. It costs a lot less, somewhere over a hundred
dollars, and is quite capable. I used to call it "PhotoShop Lite" but
it still does a great deal, and probably more than you'd ever need at
home.

It is apparently the successor to the very old Adobe PhotoDeluxe Home
Edition, something I still have on my computer and use from time to
time. Although quite old, PhotoDeluxe Home is still very good for a
lot of those simpler functions and does a lot more. I've seen it
bundled with scanners and such a very long time ago, and it may still
be available in some places (used, of course). Very old but still good
if you can find it very cheaply. And there are some good prices on
eBay for older versions of PhotoShop and PhotoShop Elements.

A lot of the Adobe photo products are available on a subscription
basis, but that quickly runs into a lot of money if you use it for
more than a month or three.

Finally, here's a freeware product many of you probably know about,
IrfanView. You can download it from:

www.irfanview.com

It really does a lot, and it's free for noncommercial use. They do
accept donations, suggesting 10 Euros. (It's about the same for each
seat if you pay for a license for commercial use.) I used it so much
and found it so useful that I made the suggested donation years ago,
but you don't have to.

In case you're wondering about the name of the program, Irfan is the
guy's first name. Born in Bosnia, he currently lives in Austria. If
you already have it, you might want to check what version you have and
maybe upgrade. The latest is 4.38.

73 DE WA8MCQ

I’ll give it a try. I’ll still be on my vertical for tonite, I was planning
to put the new wire up after work this evening, but the rain kind of stopped
that.



Jeremy



From: tmsevart@gmail.com [4sqrp] [mailto:4sqrp@yahoogroups.com]
Sent: Monday, November 03, 2014 5:56 PM
To: jerutley@gmail.com
Subject: RE: Monday Sideband Net



Looks like just rain in the forecast tonight, not much in the way of storms.
Listening to 40 meters I don't hear much lightning static, so I think the
net should be good to go tonight.

Tom N2UHC

From: tmsevart@... [4sqrp] [mailto:4sqrp@...]
Sent: Monday, November 03, 2014 5:56 PM
To: jerutley@...
Subject: RE: Monday Sideband Net

Looks like just rain in the forecast tonight, not much in the way of storms.  Listening to 40 meters I don't hear much lightning static, so I think the net should be good to go tonight.

Tom N2UHC

The Four State QRP Sideband net meets every Monday night at 7:30pm Central Time.

NCS is WQ5RP, with Jeremy, NQ0M as control operator from Beautiful Downtown Iola, KS.

Frequency is 7.285 MHz, QSYing down as needed to avoid traffic.  Check QRPSpots for the actual frequency of the net!

I will hopefully be trying out a new antenna this week, so we’ll see if people hear me any better this time around.  New antenna is a 54-foot random-wire end-fed with a matching network, then coax to the shack.  If I don’t have decent luck with this attempt, I might just spring for a PAR end-fed 40m antenna!

Hope to hear you guys tomorrow night!

Jeremy, NQ0M

 

Hey everyone!

 

The November issue of the Banner is up and online!

 

http://www.4sqrp.com/TheBanner.php

 

From the index:

 

Blue Whale

Copying QSO’s and Calls

4-States Hospitality

Are Knobs and buttons toast?

From The Editor

 

Submitted articles were pretty slim this month!  Keep those articles coming guys!  This is *YOUR* newsletter, so tell me what *YOU* want to see in it!

 

I’d also be interested in knowing what you all think about my own musings (the “From the Editor” column).  Do you like it?  Want me to stop? Feedback is always welcome!

 

Jeremy, NQ0M

 

>5. I use Adobe Photo Shop for bringing in images (from iPhone or
>camera or files) and can then adjust their size, contrast, file type,
>etc for transfer.

If you already have access to PhotoShop, it is fine for doing simple
jobs like those. But you might not want to go out and buy it unless
you really need it's full (and considerable) functionality. I don't
know if they still offer it as a standalone product you load onto your
computer, but if they do, it's probably still quite a few hundred
dollars. (I remember years ago when it was somewhere in the vicinity
of a thousand dollars.)

A much more affordable program is PhotoShop Elements, something that I
used at a previous job. It costs a lot less, somewhere over a hundred
dollars, and is quite capable. I used to call it "PhotoShop Lite" but
it still does a great deal, and probably more than you'd ever need at
home.

It is apparently the successor to the very old Adobe PhotoDeluxe Home
Edition, something I still have on my computer and use from time to
time. Although quite old, PhotoDeluxe Home is still very good for a
lot of those simpler functions and does a lot more. I've seen it
bundled with scanners and such a very long time ago, and it may still
be available in some places (used, of course). Very old but still good
if you can find it very cheaply. And there are some good prices on
eBay for older versions of PhotoShop and PhotoShop Elements.

A lot of the Adobe photo products are available on a subscription
basis, but that quickly runs into a lot of money if you use it for
more than a month or three.

Finally, here's a freeware product many of you probably know about,
IrfanView. You can download it from:

www.irfanview.com

It really does a lot, and it's free for noncommercial use. They do
accept donations, suggesting 10 Euros. (It's about the same for each
seat if you pay for a license for commercial use.) I used it so much
and found it so useful that I made the suggested donation years ago,
but you don't have to.

In case you're wondering about the name of the program, Irfan is the
guy's first name. Born in Bosnia, he currently lives in Austria. If
you already have it, you might want to check what version you have and
maybe upgrade. The latest is 4.38.

73 DE WA8MCQ