... 1SS272 ... and ... with ... Is there ... think ... Pete uses the 1N5767 axial lead PIN diode with good results. He does not recall that his former DX-394...
does any know of a way to make the receice alot quieter? i have 1 and it seems to be a bit noisy as compared to other receivers i own. also is there any way to...
Does anyone have any experience with this new (to me) soldering system? I ran across it online. Uses flame powered tool with low temp solder paste. I've been...
I've got two of these "catalytic" soldering irons in my toolbox. They are
great little tools and really work well. The biggest problem I have found
is that...
Hi Tim, The DX-394 has a low noise figure and high sensitivity - the latter can make it appear noisier when tuning between stations than a radio with lower ...
To be a fair test, you MUST run both radfios on the SAME antenna... ... of ... program. ... but ... an ... the ... 1 ... 100% ... for ... last ... audio ... by...
Jim, frankly, both radios were on their telescopic whips on the same tabletop; and despite the fact that the Grundig antenna is obviously much larger, it lost....
I'd agree that this is a fair test of the radios when using their stock whips and an interesting observation. If one was trying to compare the electronics,...
Hi tom, this does explain the excess noise between stations. but i don't see the varactor diode for the ferrite bar in the schmatic or for that matter the...
your probibly right tom, i've been working on electronic equipment for a # of yrs. granted i'm not that familiar with the 394's circuitry just yet. but i do...
Tim, the varactor is D8, a dual diode - 1/2 is used on all bands, the other is switched on by Q11 for LW and MW bands to double the capacitance. The other...
I'm not defending the Sat-800, I'm just saying that if you don't use the exact antenna for both tests you won't get accurate results. Sometimes y DE1003 will...
So I should maybe check these components to see if they might be the problem? ... __________________________________ Yahoo! Mail Mobile Take Yahoo! Mail with...
Rather than attempting to verify each component which is difficult to do in circuit, you should do some progressive signal injection. Ideally with a signal...
Got the Dec'94 issue of QST out of the stacks at the Metro Reference Library. Interesting reading and raises more questions as well as suggesting a course of...
We have talked a lot about the benefits of a passive preselector using inductors and capacitors, either as a fixed bandpass filter or as a tunable bandpass...
Hello, I am new to the group but not entirely new to monitoring. I did however just begin to get involved with HF and am looking to buy a 394. Currently...
eBay lists a dozen DX-394's today, from greatly modified to as it came out of the box plus one not working. That's as many as I've ever seen at one time, and...
Thanks Tom, I have been watching E-bay for this radio for a while and I am just not sure what a fair offering price would be. I have seen so many scanners, etc...
Not finding much ham activity at or close to 3728kHz, I had a look through my small collection of crystals and checked around their frequencies in the ILGRadio...
I can purchase a DX 394 for a good price. I was thinking on using it to receive RTTY and WEFAX. There is a WX RTTY and WEFAX station out of Nova Scotia that...
It should be fine for that app. The DX394 has very low drift so it should stay on frequency. Watch out for interference from the computer and especially the...
I haven't had a LOT of experience with my 394 but I can say that it will stay on frequency for as long as you care to leave it on. It does a great job with...
I just discovered that R50, R51 and C45 are not installed on either of my two DX-394A's. These would provide AGC control and RF decoupling for Q6, the 2nd...
... it ... for ... I have not problems with my DX394 for: PSK, MFSK, RTTY, SSTV, WEFAX, MT63, Hell, Selcal, or other (software Radioraft for instance...) I...
Interesting, Tom. Question: has anyone provided a post-operative review of the mods suggested by the Monitor Co. guys? I'm interested in knowing how it went. ...
Mike Maghakian indicated he was keen on trying their mods. Mike - did you get started? The only one I've done so far is the RF bypass on the AGC line - no...
I am about 1/2 through. I have a stock 394 that I am doing only the UK mods on. only exception is that I am upgrading the filter to an LF- D6 ... did you ... ...
... have. Likewise, if they are mounted in the original model, removing them would not be too difficult. So curiosity got the better of me! I tacked on the...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
