Re: Antenna recommendation for nursing home setting
Re the EMI filter did you find this to be a benefit and if so what noise did it help with?
On Sunday, April 30, 2023 at 01:03:21 PM MST, Robbie Megaw <koonektid@...> wrote:
Great thanks for the info, much appreciated?
On Mon, May 1, 2023, 7:35 AM Reginald Beardsley via <pulaskite= [email protected]> wrote: I made a cardboard template that just fit the socket. I moved it around until I found a good location surrounding the power outlet and marked it off with Magic Marker. I then used a nibbler to cut the bulk of the metal away followed by some clean up with a file.
If you have any interest in the radio as a collector's item I recommend mounting an EMI filter under the power transformer. I was going to do that and had even mounted the filter, but then I realized I could find the IEC socket. Finding a cable clamp to fit would be a long exercise in "hunt the wumpus". And I like IEC sockets whereas I despise permanent cords.
The nibblers are shown on top. I actually used one of the yellow handle ones with the spring and clamp removed for some of the detail work because I didn't have the other at the time.
On Sunday, April 30, 2023, 12:53:29 AM CDT, Robbie Megaw < koonektid@...> wrote:
Hi, could you please document or show some pictures of how you did the emi socket
I also have being thinking of doing the same as i have a spare emi socket sitting here unused at the moment
How did you cut the metal chassis etc?
Thanks On Sun, Apr 30, 2023 at 4:56?AM Reginald Beardsley via <pulaskite= [email protected]> wrote: I've been prepping my FRG-7 to lend to a gentleman who lives in a 12 x 13 ft room in a nursing facility..
I'm looking for suggestions of what sort of antenna to set up for him.? Do I need to connect to all 3 ports or just one?
I modified the? radio today and installed an IEC socket with integral EMI filter mostly to improve the ground situation and simplify cord handling.
Thanks,
Reg
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Re: Antenna recommendation for nursing home setting
Thanks for the suggestions. I'll have an SDR H field probes, spectrum analyzer etc. available. It will take Bill a while to learn to operate the FRG-7 so I'm going go with ~85' of wire stapled to the ceiling with very lightweight staples to start with and then I'll hang out with him with my Icom 705 connected to the same antenna through a splitter. The waterfall on the 705 will be very helpful in helping teach him to operate the FRG-7. Though he was a USAF radio operator. So the PLL and preselector may be perfectly natural to him.
Reg
On Monday, May 1, 2023, 01:49:23 PM CDT, Laurence Taylor <g7mzh@...> wrote:
> I've been prepping my FRG-7 to lend to a gentleman who lives in a 12
> x 13 ft room in a nursing facility..
>
> I'm looking for suggestions of what sort of antenna to set up for
> him.
I'm assuming he won't be allowed to have an outside aerial (though it
might be worth asking - there's a care home near me that has allowed two
residents to fit outside aerials). In which case, the simplest solution
would be a wire going along a wall or two at ceiling level, with some
sort of preselector if you have one.
Better would be a loop, perhaps active, though getting (or making) one
that will cover all the bands might take some tracking down.
It's likely that his main problem will be local interference from TVs,
switch-mode PSUs and so on rather than weak incoming signal.
> Do I need to connect to all 3 ports or just one?
The SW1 and SW2 terminals are connected together. They are connected to
the BC terminal via a small capacitor. I find it easier to connect the
aerial to the SO239 socket and add a wire link between SW2 and BC - with
out this the sensitivity on MW will be reduced.
--
rgds
LAurence
<><
I am root. If you see me laughing, you better have a backup!
~~~ Random (signature) 1.6.1
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Re: Antenna recommendation for nursing home setting
Reginald Beardsley <pulaskite@...> wrote: I've been prepping my FRG-7 to lend to a gentleman who lives in a 12
x 13 ft room in a nursing facility..
I'm looking for suggestions of what sort of antenna to set up for
him. I'm assuming he won't be allowed to have an outside aerial (though it might be worth asking - there's a care home near me that has allowed two residents to fit outside aerials). In which case, the simplest solution would be a wire going along a wall or two at ceiling level, with some sort of preselector if you have one. Better would be a loop, perhaps active, though getting (or making) one that will cover all the bands might take some tracking down. It's likely that his main problem will be local interference from TVs, switch-mode PSUs and so on rather than weak incoming signal. Do I need to connect to all 3 ports or just one? The SW1 and SW2 terminals are connected together. They are connected to the BC terminal via a small capacitor. I find it easier to connect the aerial to the SO239 socket and add a wire link between SW2 and BC - with out this the sensitivity on MW will be reduced. -- rgds LAurence <>< I am root. If you see me laughing, you better have a backup! ~~~ Random (signature) 1.6.1
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Re: Antenna recommendation for nursing home setting
Great thanks for the info, much appreciated?
On Mon, May 1, 2023, 7:35 AM Reginald Beardsley via <pulaskite= [email protected]> wrote: I made a cardboard template that just fit the socket. I moved it around until I found a good location surrounding the power outlet and marked it off with Magic Marker. I then used a nibbler to cut the bulk of the metal away followed by some clean up with a file.
If you have any interest in the radio as a collector's item I recommend mounting an EMI filter under the power transformer. I was going to do that and had even mounted the filter, but then I realized I could find the IEC socket. Finding a cable clamp to fit would be a long exercise in "hunt the wumpus". And I like IEC sockets whereas I despise permanent cords.
The nibblers are shown on top. I actually used one of the yellow handle ones with the spring and clamp removed for some of the detail work because I didn't have the other at the time.
On Sunday, April 30, 2023, 12:53:29 AM CDT, Robbie Megaw < koonektid@...> wrote:
Hi, could you please document or show some pictures of how you did the emi socket
I also have being thinking of doing the same as i have a spare emi socket sitting here unused at the moment
How did you cut the metal chassis etc?
Thanks On Sun, Apr 30, 2023 at 4:56?AM Reginald Beardsley via <pulaskite= [email protected]> wrote: I've been prepping my FRG-7 to lend to a gentleman who lives in a 12 x 13 ft room in a nursing facility..
I'm looking for suggestions of what sort of antenna to set up for him.? Do I need to connect to all 3 ports or just one?
I modified the? radio today and installed an IEC socket with integral EMI filter mostly to improve the ground situation and simplify cord handling.
Thanks,
Reg
|
Re: Antenna recommendation for nursing home setting
I made a cardboard template that just fit the socket. I moved it around until I found a good location surrounding the power outlet and marked it off with Magic Marker. I then used a nibbler to cut the bulk of the metal away followed by some clean up with a file.
If you have any interest in the radio as a collector's item I recommend mounting an EMI filter under the power transformer. I was going to do that and had even mounted the filter, but then I realized I could find the IEC socket. Finding a cable clamp to fit would be a long exercise in "hunt the wumpus". And I like IEC sockets whereas I despise permanent cords.
The nibblers are shown on top. I actually used one of the yellow handle ones with the spring and clamp removed for some of the detail work because I didn't have the other at the time.
On Sunday, April 30, 2023, 12:53:29 AM CDT, Robbie Megaw <koonektid@...> wrote:
Hi, could you please document or show some pictures of how you did the emi socket
I also have being thinking of doing the same as i have a spare emi socket sitting here unused at the moment
How did you cut the metal chassis etc?
Thanks
On Sun, Apr 30, 2023 at 4:56?AM Reginald Beardsley via <pulaskite= [email protected]> wrote: I've been prepping my FRG-7 to lend to a gentleman who lives in a 12 x 13 ft room in a nursing facility..
I'm looking for suggestions of what sort of antenna to set up for him.? Do I need to connect to all 3 ports or just one?
I modified the? radio today and installed an IEC socket with integral EMI filter mostly to improve the ground situation and simplify cord handling.
Thanks,
Reg
|
Re: Antenna recommendation for nursing home setting
With mine I was very impressed that it was quieter than my long wire, as being completely off grid rural, I? suffer horrendous interference from the PV controllers. I bought this just? to try, and now is? in constant daytime use. There are a few dips and bumps in its frequency range, but nothing of consequence. Circuit wise, it uses a balanced video amplifier IC , so any common mode noise, ie, local noise is cancelled to a large degree.. I recommend opening the unit and turning the gain down to improve the signal to noise ratio. There is no need for the 20 or so dB gain it is capable of.??
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Re: Almost ready to give up but...
Just wanted to publicly thank a member here for privately offering FRG7 parts.
Good people here.
I've put the FRG7 aside while I torture a Heathkit now.?
If I find a fix in the future, I'll update.
73 for now.
--
-Bob
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Re: Antenna recommendation for nursing home setting
Indeed a active loop antenna can work well (when you don't have to much noise in the building).? --
73 Lex PH2LB?
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Re: Antenna recommendation for nursing home setting
I can recommend this, it is compact, and can be placed inside against a wall. I have one, it works very well. The output cable can be connected to the SO259 aerial connector on the FRG7
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Re: Antenna recommendation for nursing home setting
Hi, could you please document or show some pictures of how you did the emi socket
I also have being thinking of doing the same as i have a spare emi socket sitting here unused at the moment
How did you cut the metal chassis etc?
Thanks
On Sun, Apr 30, 2023 at 4:56?AM Reginald Beardsley via <pulaskite= [email protected]> wrote: I've been prepping my FRG-7 to lend to a gentleman who lives in a 12 x 13 ft room in a nursing facility..
I'm looking for suggestions of what sort of antenna to set up for him.? Do I need to connect to all 3 ports or just one?
I modified the? radio today and installed an IEC socket with integral EMI filter mostly to improve the ground situation and simplify cord handling.
Thanks,
Reg
|
Antenna recommendation for nursing home setting
I've been prepping my FRG-7 to lend to a gentleman who lives in a 12 x 13 ft room in a nursing facility..
I'm looking for suggestions of what sort of antenna to set up for him. Do I need to connect to all 3 ports or just one?
I modified the radio today and installed an IEC socket with integral EMI filter mostly to improve the ground situation and simplify cord handling.
Thanks,
Reg
|
The display input connects to the Yaesu tp02 on the AF/IF board, the positive supply to the terminal strip that supplies the lighting, the negative lead grounded. The display will come on/off with the panel lights. Dead simple. just 3 wires.
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I am also interested - thanks Marcel
Andy
G0BZW
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Great, thanks for that.
Ian G1MZW
On 26 Apr 2023 14:21, "Marcel, de PA8MA" <mga.jacobs@...> wrote: Yes, I will share it, no problem.? 5 Other people have asked me for this counter. I'm drawing a pcb for it.?
It is a prototype at the moment with a buffer amplifier for the HF-input and an opamp for the S-meter. The rest is done by an Arduino Nano or Pro mini with an 1.14" tft screen.
Maybe I'm gonna make a kit for it, or send people pre-programmed and calibrated Arduinos. And also a good description how to build it into the FRG.?
More to come.
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Yes, I will share it, no problem.? 5 Other people have asked me for this counter. I'm drawing a pcb for it.?
It is a prototype at the moment with a buffer amplifier for the HF-input and an opamp for the S-meter. The rest is done by an Arduino Nano or Pro mini with an 1.14" tft screen.
Maybe I'm gonna make a kit for it, or send people pre-programmed and calibrated Arduinos. And also a good description how to build it into the FRG.?
More to come.
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On Wed, Apr 26, 2023 at 12:47 AM, Pentagrid wrote:
One easy and cheap way to add a digital frequency display is right here.
Just program the module for an IF shift of -3,455, and it will read the actual Kilohertz receive frequency.
How do you hook it up?
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Re: Almost ready to give up but...
Latest update:
Q105 just doesn't seem to want to mix.? It tests well, but it is producing 42MHz instead of the 2-3MHz. ?? The 2 IFs coming in to it are fine.
So I am going to order MPF103's (can't find any 2sk19gr's).?
Meanwhile I'll check all surrounding components to make sure they don't have an issue.
The saga continues....
--
-Bob
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One easy and cheap way to add a digital frequency display is right here.
Just program the module for an IF shift of -3,455, and it will read the actual Kilohertz receive frequency.
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On 25 Apr 2023 19:13, "Marcel, de PA8MA" <mga.jacobs@...> wrote: Here is my version with a color TFT screen.
The startup screen when you switch on the FRG and the digital readout with S-meter.?
Hi Marcel,
Any chance of you sharing the hardware and code you used please?
TIA,
Ian -G1MZW
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Bob W8RMV
Lex PH2LB
Randy K7RAN