Hi Nick, great to see you back on and I love your AEG 800/2.... I have been a Ham for over 50 years and I service expensive receivers but I have NEVER seen that model. Thanks for securing it and sharing your fun with us. OK. without getting too technical a Receiver's job is to convert radio signals low enough in frequency that we Humans can hear it. The first stage is front end RF filtering so you can start to block stuff you don't want to listen too. Example. If you want to listen to SW at 9MHZ, you don't want the AM broadcast band clobbering your receiver. After pre-filtering you have the first RF, radio frequency amp. next, in our quest to get something for our ears to hear. we mix the RF with a MIXER, to drop the frequency to the IF, intermediate Frequency, which is lower than RF but we can't hear it yet. In the IF stage is normally where we have IF filtering like 6KHz down to maybe 400 or even 200 HZ. Next is the detector which helps us chose what we want to listen to, say, AM, SSB/LSB/USB or maybe FM next we have another mixer to drop those frequencies down to audio and finally, we can hear the signals. With regard to FM, there are Ham repeaters above 29 MHz and up to close to 30MHz. Also, FM has been approved for CB use and some CBers are using FM, though many still use, mostly USB for DX and locals mostly use AM. With regard to the buttons below the bandwidth display, this is probably an alternate type of filter at the IF frequency, possibly, to tighten or loosen, widen or shorten the ranges of what the crystal filters are doing. Kind of a fine tune, not 100% sure but that is my educated hunch for now. You seem to have a pretty good understanding of the unit already. Wife is waiting for me to have dinner with her, more later,! 73, Glenn WA4AOS
Hi Nick, PART 2.. remember, I don't have a manual but just trying to figure it out with you. 1st note. Look at the 2 function button. You have buttons over the unit that has both a White and Green labels. My guess is the 2 func button switches between the function of those two labels. Meaning one mode, the labels in WHITE on the buttons are in use. Hit the 2 func button once more then the Green label on a button is active. As an example, look at your SL Fa button above the tuning knob. It also has a green label which reads LOCK. By pressing the 2 func button it will toggle between freq lock and then back to SL FA NOTE 2, I think your unit is working fine, you will figure it out quickly. OK while tuning through a CW signal which is just a carrier being turned on and off. The RED indicator is telling you are near the center of the sig and not way to the side. That does not matter to you as much but if you were transmitting back to him in CW, and you are using a wide filter and he's using a narrow filter, then, he may not hear you. I think that indicator is well thought out and is acting like a peaking meter. NOTE 3. The STore function is in Green under the RCL in white. Pushing the 2 func button should turn on the store mode. Or basically toggling between Recall and Store. Again, thanks for sharing you super neat receivers. 73, Glenn WA4AOS
IF stands for intermediate frequency that refers to the internal bandwidths with-in the receiver. Read about Super-hytrodine receivers invented by Edwin Armstrong back in the early 1920's. It is used to improve selectivity on weak signals and help block out adjacent stronger signals. IF shift is used in your ICOM 75 and others...so this might be similar.
I watched a few you tube video on the E1800/3 receiver that has that same function key that we cant figure out. However they never touched that push button... I wonder if that controls some Option that may or may not be installed...
Telefunken sounds like a name of a 1970's Disco band name even though it' s over 100 years old.....:)! That message is okay as long as it doesn't spell out the word "KABOOM" and kiss your A--- goodbye! Great looking receiver sounds good also.
I think the two horseshoe 🧲 button settings on the central top pushbutton is the lock range of the PLL, this is just something that I seem to remember it is probably completely different but it does ring a bell.... Something about the lock range which would explain why on one it locks bang on and not in the other?
2 FCTN = Second Function, so you hit that then the STORE key, or hit it and then the ANT switch.. For the IF filter,, I believe that that may be some sort of roofing filter, and it may be that it attenuates the AM Broadcast band to reject strong local AM radio stations.. My JRC and Eddystone radios have this feature.. My best guess.. Tune down to the AM band and hit the switch to see if that does anything with signal strength??? If other AGC radios have this same symbol maybe you can search for that radio and if you find a manual or specification sheet, may have your answer. The 2 nd Function controls what looks like 5 bush buttons... Like Fast Slow AGC, looks to LOCK it in one or the other mode. Robert
AGC circuit hits pretty hard in that thing
Hi Nick, great to see you back on and I love your AEG 800/2.... I have been a Ham for over 50 years and I service expensive receivers but I have NEVER seen that model. Thanks for securing it and sharing your fun with us.
OK. without getting too technical a Receiver's job is to convert radio signals low enough in frequency that we Humans can hear it.
The first stage is front end RF filtering so you can start to block stuff you don't want to listen too. Example. If you want to listen to SW at 9MHZ, you don't want the AM broadcast band clobbering your receiver. After pre-filtering you have the first RF, radio frequency amp. next, in our quest to get something for our ears to hear. we mix the RF with a MIXER, to drop the frequency to the IF, intermediate Frequency, which is lower than RF but we can't hear it yet.
In the IF stage is normally where we have IF filtering like 6KHz down to maybe 400 or even 200 HZ. Next is the detector which helps us chose what we want to listen to, say, AM, SSB/LSB/USB or maybe FM next we have another mixer to drop those frequencies down to audio and finally, we can hear the signals.
With regard to FM, there are Ham repeaters above 29 MHz and up to close to 30MHz. Also, FM has been approved for CB use and some CBers are using FM, though many still use, mostly USB for DX and locals mostly use AM.
With regard to the buttons below the bandwidth display, this is probably an alternate type of filter at the IF frequency, possibly, to tighten or loosen, widen or shorten the ranges of what the crystal filters are doing. Kind of a fine tune, not 100% sure but that is my educated hunch for now.
You seem to have a pretty good understanding of the unit already.
Wife is waiting for me to have dinner with her, more later,!
73,
Glenn WA4AOS
Hi Nick, PART 2.. remember, I don't have a manual but just trying to figure it out with you.
1st note. Look at the 2 function button. You have buttons over the unit that has both a White and Green labels. My guess is the
2 func button switches between the function of those two labels. Meaning one mode, the labels in WHITE on the buttons are in use. Hit the 2 func button once more then the Green label on a button is active. As an example, look at your SL Fa button above the tuning knob. It also has a green label which reads LOCK. By pressing the 2 func button it will toggle between freq lock and then back to SL FA
NOTE 2, I think your unit is working fine, you will figure it out quickly. OK while tuning through a CW signal which is just a carrier being turned on and off. The RED indicator is telling you are near the center of the sig and not way to the side. That does not matter to you as much but if you were transmitting back to him in CW, and you are using a wide filter and he's using a narrow filter, then, he may not hear you. I think that indicator is well thought out and is acting like a peaking meter.
NOTE 3. The STore function is in Green under the RCL in white. Pushing the 2 func button should turn on the store mode. Or basically toggling between Recall and Store.
Again, thanks for sharing you super neat receivers.
73,
Glenn WA4AOS
Any more WHISKY and he will be Drunk!!! 🙂
VERY NICE!!!!!!!!!
Robert
One more note... The squelch function may, possibly, only work in the FM mode.
I think that the new price of the RS + the AEG when they came out bought you a modest house.
IF stands for intermediate frequency that refers to the internal bandwidths with-in the receiver. Read about Super-hytrodine receivers invented by Edwin Armstrong back in the early 1920's. It is used to improve selectivity on weak signals and help block out adjacent stronger signals. IF shift is used in your ICOM 75 and others...so this might be similar.
I watched a few you tube video on the E1800/3 receiver that has that same function key that we cant figure out. However they never touched that push button... I wonder if that controls some Option that may or may not be installed...
Telefunken sounds like a name of a 1970's Disco band name even though it' s over 100 years old.....:)!
That message is okay as long as it doesn't spell out the word "KABOOM" and kiss your A--- goodbye!
Great looking receiver sounds good also.
I think the two horseshoe 🧲 button settings on the central top pushbutton is the lock range of the PLL, this is just something that I seem to remember it is probably completely different but it does ring a bell.... Something about the lock range which would explain why on one it locks bang on and not in the other?
2 FCTN = Second Function, so you hit that then the STORE key, or hit it and then the ANT switch..
For the IF filter,, I believe that that may be some sort of roofing filter, and it may be that it attenuates the AM Broadcast band to reject strong local AM radio stations.. My JRC and Eddystone radios have this feature.. My best guess.. Tune down to the AM band and hit the switch to see if that does anything with signal strength??? If other AGC radios have this same symbol maybe you can search for that radio and if you find a manual or specification sheet, may have your answer.
The 2 nd Function controls what looks like 5 bush buttons... Like Fast Slow AGC, looks to LOCK it in one or the other mode.
Robert
Hi Nick, very nice looking radio. I’m so curious to know where you find them. Other comments already told your pretty much everything. Cheers
Trade with friends
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