From: Roman RW3ADB <rw3adb@rambler.ru>
To: <rsgb_lf_group@blacksheep.org>
Date: Thu, 04 Dec 2008 23:48:39 +0300
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Subject: Re: LF: RE: DEGEN 1103
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Hi Alberto & LF!


* Alberto di Bene <dibene@usa.net> [Thu, 04 Dec 2008 20:43:27 +0100]:
> I read here comments about the (lack of) sensitivity of the Degen 1103
> when receiving DCF77
> or other signals below 100 kHz. What is the magic spell to convince it
> to go below 100 kHz ?
> If I manually enter, let's say, 80, then press the AM button, it says
> Err  in the display...
> If I tune downward, when trespassing the 100 kHz limit, it goes at
> 107.95 FM....


The russian origin "How to "open" 1103 b4 100 kHz and more 30 MHz":
http://mods.radioscanner.ru/degen/mod29/

The google text translation: (excuse, web-translator banned onto=20
radioscanner.ru)

Interesting information about the possibility DE1103 take less than 100=20
kHz was published on the Internet. It has been said about this on our=20
pages (in fact, has found a way to enhance reception of above 30 MHz -=20
thanks to a separate party luv). People receiver built into their=20
offspring hidden talent, the key to that quickly spread through the=20
worldwide network. Enjoy a party that is a refinement manipulations need=20
only receiver on the keyboard, without disassembly. The process=20
=ABdisclosure=BB band reception in DE1103 interesting in itself, and the=20
result is of admirable idea (a joke?) Engineers, to expand an already=20
extensive border radio in DE1103. Many owners of the receiver of the=20
number of visitors to the site successfully reiterated that=20
=ABdisclosure=BB.

Below is a guide to expand the range of receiving less than 100 kHz.

1. Turn on the receiver and configure it to the frequency of 21951 kHz=20
direct dial on the numeric keypad (2-1-9-5-1 - =ABBAND=BB).
2. Press two buttons: =ABBAND-=BB and =ABBAND=BB before crawling down the=20
frequency.
3. Wait for approaching the current frequency scanning to the low end of=20
the reception of 100 kHz (this can take a decent time). Do not touch all=20
the time valkoder - his touch and stop scanning process will repeat=20
again. When scanning reaches the lower limit of 100 kHz and move it, be=20
careful. Now you need to stop the scan by pressing any button or turning=20
valkodera. Display frequencies below 100 kHz will be three-digits, for=20
example, 50 kHz:

<The pic>

4. It should write this or any frequencies below 100 kHz in cell memory:=20
hold =ABSTORE=BB, then turn by  valkoder number of memory cells, release and=
=20
then again =ABSTORE=BB. Better to use a cell at the beginning of the bank -=20
more convenient for future use.
Note: choose recorded frequency (adjust to it) needs only valkoderom.

For =ABdisclosure=BB above 30 MHz the following steps:

1. Turn on the receiver and configure it to the frequency of 21951 kHz=20
by direct dial on a digital keyboard (2-1-9-5-1 - =ABBAND=BB).
2. Press two buttons: =ABBAND-=BB and =ABBAND=BB before the start crawling d=
own=20
the frequency.
3. Stop scan by pressing any button, then click =ABBAND=BB and hold it up to=
=20
start crawling up the frequency.
4. Wait for achieving higher frequency 29950 kHz and stop crawling.=20
Record the frequency of stops in any cell memory.
5. Call the recorded cell memory button =ABM / F=BB and go to the manual=20
re-clicking this button. On display will be the previously recorded=20
frequency, and the inscription =ABMEM=BB on the right side of the display is=
=20
replaced by =ABVOL=BB.
6. Start crawling up the frequency of Press and hold the button =ABBAND=BB.=20
Scanning move abroad 30 MHz (reading, the display will be the type of=20
type =ABB0000=BB, where the first character - turned the letter B). Note:=20
You need to have time to stop crawling on the testimony of the display=20
between =ABB0001=BB and =ABB0009=BB (30.001-30.009 MHz).



Now with the help of valkodera can be configured above. The main catch=20
to stop scanning in the interim, and then adjust higher valkoderom=20
=ABB0010=BB. If you do not do this and do not stop scanning, then=20
immediately after the frequency =ABB0010=BB (30.010 MHz) receiver moves to=20
the band FM. The work will be wasted and will have to repeat the steps=20
beginning with paragraph 5, so

7. After crawled Tune valkoderom stop at any frequency higher than=20
=ABB0010=BB and record it convenient for future use cell memory.

Now with the help of valkodera can be configured above. The main catch=20
to stop scanning in the interim, and then adjust higher valkoderom=20
=ABB0010=BB. If you do not do this and do not stop scanning, then=20
immediately after the frequency =ABB0010=BB (30.010 MHz) receiver moves to=20
the band FM. The work will be wasted and will have to repeat the steps=20
beginning with paragraph 5, so

7. After crawled Tune valkoderom stop at any frequency higher than=20
=ABB0010=BB and record it convenient for future use cell memory.

Now you can take DE1103 below 100 kHz and above 30 MHz. But the setting=20
for these frequencies different from the conventional way of setting in=20
DE1103. The frequency of =ABdiscovered=BB band can not dial direct input=20
from the keyboard. Nor can it be to move into new ranges and using the=20
change range =ABBAND-=BB or =ABBAND=BB. You can only call pre-programmed cel=
l=20
memory with any =ABdisclosed=BB frequencies below 100 Hz or above 30.010 MHz=
=20
and pressing =ABM / F=BB switch to manual. Valkodera rotation or the=20
inclusion of scanning can be set at the desired frequency, but if the=20
difference between the frequency of =ABentry=BB from memory and frequency=20
control much have to spend a lot of time to restructure. So add a few=20
=ABround=BB frequency of separation (eg B0000 =BB,=AB B1000 =BB,=AB B2000=20=
=BB...) in=20
memory of the receiver for convenience and speed of future setup.

Need Is =ABuncovered=BB DE1103 reception in general? Each owner DE1103=20
decide for himself. Above 30 MHz in the settlements can be heard=20
everyday phone, working with narrowband FM. In a small detuning able to=20
clearly take this type of modulation in the AM. In some regions remained=20
=ABPeople's business=BB transmitters in the band 33-38 MHz, also using a=20
narrow World Cup.

Below 100 kHz really listen, perhaps the only one =ABsight=BB - signals the=20
station master at the time, frequency, 66 (6) kHz. To do so would have=20
to connect an external antenna connector to the receiver.

Incidentally, found that after the procedure =ABdisclosure=BB receiving less=
=20
than 100 kHz, you can choose the type of antenna used at frequencies up=20
to 1710 kHz - internal magnetic or telescoping.
The original factory option when setting below 1710 kHz always included=20
magnetic antenna, telescoping antenna while turned off. The same rule=20
remains in the =ABopened=BB DE1103 when setting it on the frequency 1710 kHz=
=20
below the normal way (direct dial buttons to change frequencies or=20
bands). But if =ABenter=BB to the disclosure below 100 kHz range by invoking=
=20
the memory cell with =ABlow=BB frequency, moving then to the manual=20
re-pressing =ABM / F=BB, as described above, the reception will be made on=20
the telescopic antenna. In follow-setting valkoderom higher frequency of=20
admission to the telescopic antenna remains. Return to the magnetic=20
antenna is made as soon as tuning to the frequency 1710 kHz below the=20
usual way - via a digital set or a button-shift range.

Note that in the =ABold=BB DE1103 during a reception on a magnetic antenna=20
(for frequencies below 1710 kHz) at any time you can switch to an=20
external antenna, by its mere inclusion in the antenna connector. You=20
can also come in the =ABnew=BB DE1103 with a finalized jack. But in=20
nedorabotannom factory receiver new version to use an external antenna=20
below 1710 kHz will fail. Only after =ABdisclosure=BB receiving less than=20
100 kHz in the =ABnew=BB DE1103 an opportunity to shift magnetic telescopic=20
antenna on to the above methods, and only then, can be signs of external=20
antenna connected to the connector instead of telescoping. How to find a=20
way to connect external DV / CB antenna harder in practice, not to=20
mention the obviously sad behavior =ABnew=BB DE1103 factory with an external=
=20
antenna.

> TNX

PS-
My DE-1103 working well from 1 kHz to 100 kHz. Used an external ant=20
input only into "open" variant.
I copy RBU 66.6 kHz near Moscow well 2 "briks" on s-meter.
I copy well DCF-39, HGA-55. Tryed to copy QRSS-3 on 505 kHz well and=20
RN3AGC signals on 137.777.5 kHz well.
Russian op's tryed to copy DCF-77 in EU russia into "clear" place into=20
forests. The results was well.
(I'm do not copy DCF-77 in Moscow as well)
Tryed to copy 18-27 kHz rtty too with good results.
I hope trying to copy SAQ next transmission on DE-1103.
My 80m's band sloper not so good antenna for LF/MF, but I copy all these=20
signals.

DE-1103 working well up to 35-39 MHz as usual. My variant working up to=20
37.5
But I copy a old cordless phones in NFM into AM wide mode over 30 Mhz=20
only.


> 73  Alberto  I2PHD
>
>
>

--
Roman RW3ADB.