[hpsdr] Hermes_v3.3 released

[Greg - ZL3IX]

Hi Phil,

I also prefer N-type connectors, and use them exclusively in my station, 
even though from an RF point of view they are not really necessary at 
HF. My reason is that I have had lots of problems in the past with 
intermittent contacts on the centre pin with PL259/SO239. I find that, 
if the humidity is reasonably high, a very thin layer of oxide forms on 
the centre pin of the 259, resulting in no or little Rx. It needs to be 
blown away with a burst from the Tx before the Rx comes back again. The 
connection on my SteppIR was particularly bad for this, and in the end I 
changed it to N-type. No problems after doing that.

73 + HNY,
Greg ZL3IX

On 2017-12-31 08:53 p.m., Phil Harman wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Roland,
>
> Thanks for the feedback. I also use my Atlas based transceiver as my 
> main rig since its normally the only rig that does not have test code 
> in it.
>
> Also thanks for reminding me about the PL259 plugs.
>
> I've used the standard solder on PL259 plugs for many years. Since you 
> have to apply a lot of heat to the body of the plug in order to solder 
> the outer braid I'm always concerned about damaging the coax.  I much 
> prefer the N type connectors which use a compression method of 
> attaching the braid and a much less prone to damaging the coax.  
> However, at HF most rigs use PL259 sockets.
>
> I recently came across compression ( or Clamp) PL259 plugs on ebay.  
> These are of Chinese origin but a very well made and economical, 
> particularly in 10 off quantities.
>
> There are a number of companies offering these and if you enter:
>
> Pack 10 x UHF PL259 male clamp Plug connector for LMR400 RG8 RG213 
> RG214 cable
>
> into ebay you will find a number of suppliers.  The company I 
> purchased from was called rfbat but the product looks the same from 
> many companies.
>
> 73 Phil...VK6PH
>
>
>
> -----Original Message----- From: Roland ETIENNE
> Sent: Saturday, December 30, 2017 8:40 PM
> To: 'Phil Harman' ; hpsdr at lists.openhpsdr.org
> Subject: RE: [hpsdr] Hermes_v3.3 released
>
> Hi Phil,
>
> Thanks for all the nice job you're doing for us with all the others
> developers of this great team!
> My HPSDR Atlas based transceiver, running since 01/2009 is still the best
> piece of equipment in my shack!
>
> I have heard you talking about nice SO239/PL239 connectors, easy to use,
> could you give a link?
>
> Happy new year to every one on the list!
>
> Roland F8CHK
>
> -----Message d'origine-----
> De : Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] De la part de Phil
> Harman
> Envoyé : samedi 30 décembre 2017 12:56
> À : hpsdr at lists.openhpsdr.org
> Objet : [hpsdr] Hermes_v3.3 released
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> All,
>
> I've just released Hermes_v3.3.  This fixes a problem with the Envelope
> Tracking/Envelope Elimination & Restoration (ET/EER) code that 
> generates the
>
> envelope signal.
>
> Unless you are working on a project that uses this signal there is no
> urgency to install this release.
>
> May I take the opportunity to wish everyone all the best for the New Year
> .
>