main@UltralightDX.groups.io

Re: DSP noise

Hi Michael, I've been connecting external antennas directly to my PL-310, Grundig G8 and 2 PL-380s for over a year with no problems. The PL-310 mod for connecting an external antenna is very simple,

By Rick Robinson <w4dst@...> · #15539 ·

Re: DSP noise

When looking at the excellent images, I wondered about the proximity of single-ferrite antennas mounted on top of uldx receivers. The description mentions that the front-end of the PL-380 is

By Michael <michael.setaazul@...> · #15538 ·

Re: Antenna theory question- FARMERIK

Away from the house and any other sources of RFI ! A few metres above ground. Good coax from the antenna to the receiver, shield well grounded at antenna end. For LW, the whip should be longer. When

By Michael <michael.setaazul@...> · #15537 ·

Re: Antenna theory question- FARMERIK

Moving my radio farther from the computer and cable box really helps, but I like to mix Radio listening and online sessions. That was the sort of effect I had in mind. OK, so if I was going to wind a

By Rik · #15536 ·

Re: Antenna theory question- FARMERIK

My quick answer is also a short one - no. A vertical antenna will in and of itself pick up more noise, largely because the character of electrical noise is that it tends to have a much larger vertical

By Russ Edmunds <wb2bjh@...> · #15535 ·

Antenna theory question- FARMERIK

I recently ordered a SONY amplified antenna covering LW MW & SW which uses a whip. For a vertical whip, should I expect it to be some what shielded from house hold RFI if I mount it directly above a

By Rik · #15534 ·

Non ULR log

Hi Last night (saturday) 1062 RAI-1 1116 RAI-1 900 RAI-1 (Milan) 936 RAI-1 1575 RAI-1 1503 IRIB (Bushehr) Prayers in Farsi,**4670km** 990 DR-Kultur (Berlin) patrice Beauvais

By patrice.privat · #15533 ·

Re: SSB DX

Hiya I belong to a "heavy" group for MW DX but I will behappy to contribute to your group too as soon as I buy an ULR, probably theTecsun 606. Strangely enough, in my other radio hobby (Sporadic

By patrice.privat · #15532 ·

Re: SSB DX

Hello Patrice, Thanks for sharing your thoughts. Actually North American west coast DXers have an even greater challenge to receive Asian and South Pacific 9 kHz-plan AM stations across the Pacific

By Gary DeBock · #15531 ·

Re: SSB ultralight class

Thanks Neil, as well as to others who have contributed to this email string. As you say, the definitions of what constitutes an Ultralight radio indeed went through quite a process to create them,

By Kevin Schanilec · #15530 ·

Re: SSB ultralight class

The founders of this group decided on a strict set of rules and the group has certainly done well. These rules are very unlikely to be modified and that is clearly their right. I respect their right

By neilkj6fba <kj6fba@...> · #15529 ·

Re: SSB DX

Absolutely no way "worthless", Kirk! We all have great memories. I discovered passband tuning with a patched-up Drake R4B. It is still in the loft, awaiting rejuvenification with a few ICs in lieu

By Michael <michael.setaazul@...> · #15528 ·

Re: Could the iPhone become an Ultralight ?

Jeff, let us know how it works with the G8. Michael UK

By Michael <michael.setaazul@...> · #15527 ·

Another New XE Logged This Morning

Hideeho Everyone, Persistence does indeed pay off now and then. This morning I was finally able to nail down a positive ID on a weak XE station I'd been hearing sporadically during the last two

By Kirk · #15526 ·

Re: Could the iPhone become an Ultralight ?

Thanks for all the comments and the suggestions about Perseus. As I mentioned to Steve, I am using N4PY's Pegasus application running as a front end controlling both PowerSDR and an Alinco DX-R8

By Jeffrey Fritz <jnfritz07@...> · #15525 ·

Re: SSB DX

Wow! You guys are speaking in terms I've not heard of nor thought about in a fair number of years. I truly do miss the SSB pass band tuning receptions I used to receive on the hf bands "back in the

By Kirk · #15524 ·

Re: SSB DX

Michael wrote: I suggest you are comparing Apples with Oranges. It is pointless to compare a poor SSB filter with a good AM filter. Basic Communications theory says that listening to one Sideband

By Graeme Zimmer <gzimmer@...> · #15523 ·

Re: SSB DX

Okay, lets agree to disagree about that, Graeme! Results will depend on experience with equipment, modes etc. I have found a PL-380 with 1-2kHz bandwidth to often give better signal readability

By Michael <michael.setaazul@...> · #15522 ·

Re: SSB DX

Sorry, but no it won't. The optimum bandwidth for SSB (2.4 KHz or so) and the ability to switch sidebands is about as good as it can get. Certainly it will be way ahead of any AM

By Graeme Zimmer <gzimmer@...> · #15521 ·

Re: SSB DX

Patrice, SSB can certainly help to resolve marginal AM, as does synchronous detection. Enhanced SSB with passband tuning and variable carrier-insertion offset helps even more! But that would

By Michael <michael.setaazul@...> · #15520 ·

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