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Re: Easiest/cheapest way to 6m/2m/70cm?
Max
Many thanks Oguzhan. Useful information.
Best Max |
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Re: Easiest/cheapest way to 6m/2m/70cm?
Oguzhan Kayhan
Used one of that ukrainian transverter for 2m for a while. It is not a highend device for sure.. But I connected that to my ts-480, had an output of 10-12W which was enough for repeater communication. Then I added a 150W PA to it.. And made hundreds of Meteor Scatter qsos.. And , my first EME contact with I2FAK, with my single 10 element yagi by using this transverter + PA Yes it has problems.. Lost internal amplifier (BF998 i suppose) a few times.. And the output transistor, 2 times..(which is cheap anyway) . And for any trouble, they replied very quick to diagnose the problem. And there is no way to disable the internal LNA to use an external LNA if needed..So, an external LNA just saturates it.. I dont know if it has any updates on design lately.. But it works .... On Sun, May 31, 2020 at 1:10 PM Max <radiomax@...> wrote: I have Hermes Lite 2 which seems now to be working extremely well with SDRC as a very effective HF station and GC HF receiver. |
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Re: Easiest/cheapest way to 6m/2m/70cm?
Max
Yes, Tom. Think in radio particularly it's hard not to hark back to earlier days with fondness..... but also need to embrace the exciting new developments that we could only have dreamed of back then! All started for me with HAC one-valver built at school, but I don't think I will be going back that far to my roots, even though I still have it in a box somewhere, with about two tons (literally) of other accumulated stuff that needs sorting in my garage!
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Just swerving back to the topic, has anyone else tried the Ukrainian transverters from "Transverters-store" on eBay or their website here: http://transverters-store.com/ 73 Max On Sun, May 31, 2020 at 05:04 PM, Tom Crosbie G6PZZ wrote:
I see a lot of callsigns in SWL circles these days. Do we all go back to our roots? |
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Re: Easiest/cheapest way to 6m/2m/70cm?
Tom Crosbie G6PZZ
Max “…2m and 70cms I have a little nostalgia for because used to go out portable for VHF NFD with my local club. High locations and 4CX250B linears….”
Now that wipes away the COVID 19 Cobwebs and brings back memories of VHF NFD’s in the early 80’s on top of the Wrekin. I was quite active on 2m/70cms SSB I those days home and /P. I used to enjoy playing with antennas and the home station included a MET 14 ele on 2m and a pair of MET 17s stacked for 70cms.
I’ve not owned/used a TCVR for many years, partly because I can no longer afford the gear and can’t get up ladders to play with antennas. It was bad enough having to pay someone to put up the SWL antennas I do have. So it back to the hobby that started me off five and half decades ago. I see a lot of callsigns in SWL circles these days. Do we all go back to our roots?
73 Tom G6PZZ Nr Chesterfield | NE Derbyshire | UK | IO93he
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Max
Sent: 31 May 2020 16:19 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Easiest/cheapest way to 6m/2m/70cm?
Hi Paul
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Re: Off Topic Request
in my view the pluto beats the hack rf ...
dg9bfc sigi =============================== Seconded. 12-bit IIRC, not 8-bit. David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter: @gm8arv |
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Re: CW Skimmer decoded bandwidth
Alan
Sorry Alan.... did not check the author on that item! Thanks for your comments. Yes, of course. I see now (the IQ theory) but not why there is a 24 kHz restriction.Max, No, I've not got a SDR-radio setup at the moment but as i described I thought the Softrock IF mode was capable of 48KHz span. The pictures on Simon's page are not clear enough for me to see the span shown there. 73 Alan G4ZFQ |
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Re: Off Topic Request
Siegfried Jackstien
in my view the pluto beats the hack rf ...
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dg9bfc sigi Am 30.05.2020 um 22:19 schrieb David L. Wilson via groups.io:
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Re: Easiest/cheapest way to 6m/2m/70cm?
Max
Hi Paul
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Just want to get active on those bands in a casual way, nothing cutting edge, but I don't like operating compromised kit. So for example since I have had my HL2 I don't use my RSP2Pro on HF at all because I really do not like the lukewarm performance on HF, but conversely I am not looking for the last drop of DX performance on the new bands either. Just some kit that works competently but not necessarily the bleeding edge of performance. I have only really managed to come back to radio after a long break for 40 years of heavy work load and also unsuitable QTHs, and when I first started in 1976 my parent's QTH was low in a valley and VHF/UHF was out of the question. I'm now in a great all-round QTH with space for antennas so the kid in me is coming out, wanting to play on bands that were previously out of the question for me. Special interest in 6m as I have read much but never operated. Back in my day it was off the agenda anyway because the band was used by broadcast BBC TV stations here in the UK 2m and 70cms I have a little nostalgia for because used to go out portable for VHF NFD with my local club. High locations and 4CX250B linears. Good fun. No, I'm not going to be using that sort of power this time around! So in answer to your question, I guess you would call it casual use but with reasonable performance for a little DX now and then. 73 Max On Sun, May 31, 2020 at 03:17 PM, paul newcombe wrote:
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Re: CW Skimmer decoded bandwidth
Max
Sorry Alan.... did not check the author on that item! Thanks for your comments. Yes, of course. I see now (the IQ theory) but not why there is a 24 kHz restriction. For me personally it's not a limitation. I've got more than I can cope with in 24 kHz! But I guess would be nice to see a table of all stations active in a larger window as far as DX or contesting goes. I never actually thought of using it that way as I am not a major DXer or contester, so I am learning too.
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73 Max On Sun, May 31, 2020 at 03:24 PM, Alan wrote:
ays "A simple way of using CW Skimmer with a Softrock would be to use it stand-alone in this way 192KHz can be seen with a suitable soundcard. " |
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Re: CW Skimmer decoded bandwidth
Alan
Max
Says "A simple way of using CW Skimmer with a Softrock would be to use it stand-alone in this way 192KHz can be seen with a suitable soundcard. " But by the design of Skimmer "*/when in "Softrock IF" mode CW Skimmer defaults to 48KHz sampling. It is only possible to see 24 KHz bandwidth." It is a long time since I wrote that page but it does say that 48KHz may be seen if the output of the SDR program can be set to 96KHz as can HDSDR. I guess I tested that. I did talk to Alex about this, it can not be changed. /*Dick Williams, W3OA made a utility to enable 192KHz and full control but only with Softrocks. 73 Alan G4ZFQ |
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Re: Easiest/cheapest way to 6m/2m/70cm?
Siegfried Jackstien
6m ... transverter to your existing hl2 all bands above ... a pluto (up to 6 gig) dg9bfc sigi Am 31.05.2020 um 11:47 schrieb Tom
Crosbie G6PZZ:
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Re: Easiest/cheapest way to 6m/2m/70cm?
paul newcombe <G6YZC@...>
Can I ask what you want to do on the higher bands? It is very relevant in deciding the route to take.
Paul N2EME
Sent from Outlook Mobile
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Re: CW Skimmer decoded bandwidth
Alan G4ZFQ
So I reset my VAC to 192kHz, and also changed CWS setting in SDRC to match, 192 kHz, hoping I would see decode bandwidth in CWS of 1/2 x 192 = 96 kHz. But no, I still see decode bandwidth of 24 kHz.Max, If Skimmer is fed IQ signals then at 48KHz it will see centre frequency +/-24KHz =48KHz span. This is because IQ signals are actually 2 signals 90° apart one representing below centre, the other above centre just as all SDRs use. It is possible to see 192KHz using Skimmer in "Softrock" mode but I'm not sure SDR-Radio supports this. 73 Alan G4ZFQ |
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Re: Easiest/cheapest way to 6m/2m/70cm?
Jim Smith G0OFE
Microwave Modules.... ah, them were the days. I am still using one of their pre-amps on 2m.... 35 years old and still going strong. I am using one of the transverters from
Ukraine for 6m.. as a recieve converter into my Perseus. never
used it on TX but on RX it works very well. ================================
Need help with SDR Console? If you have a problem, Use the camera icon top left to take a screenshot, Then send to this group **as an attachment ** =================================== Jim, Bournemouth, Dorset. IO90BR. Elad FDM-S2, Airspy HF+, SDRPlay and Funcube Dongle SDR Recievers 8-element OP-DES for Band 2, 8-element LFA for 2m, 3-element LFA for 6m, 20m Windom for HF,. Wellbrook 1530 Loop for LF On 31/05/2020 11:47, Tom Crosbie G6PZZ
wrote:
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Re: CW Skimmer decoded bandwidth
Max
Hi again Grant
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This article seems to confirm your findings re: Softrock interface mode, so seems it is irrelevant what is set in VAC or SDRC as the maximum decode bandwidth is 24kHz. No idea why the rig control setting should affect the bandwidth delivered to CWS by the VAC? https://sites.google.com/site/g4zfqradio/hdsdr-cwskimmer-and-Other-Digimodes 73 Max On Sun, May 31, 2020 at 11:21 AM, Grant Rawstorn VK2LX wrote: Hi Max and Bill |
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Re: CW Skimmer decoded bandwidth
Max
Hi Grant
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Had some time to re-think this over lunch. Surely the ultimate bandwidth ib=n CWS with SDRC should only be to do with the sample rate of the VAC? I checked my VAC and it was set to 48kHz, which would have usually explained the bandwidth seen in CWS, because as far as I know one would expect a decode bandwidth of half of 48kHz (Nyquist?) = 24 kHz (yes, not 22!). So I reset my VAC to 192kHz, and also changed CWS setting in SDRC to match, 192 kHz, hoping I would see decode bandwidth in CWS of 1/2 x 192 = 96 kHz. But no, I still see decode bandwidth of 24 kHz. So at that point I have realised I am missing something I think. Only correction for me is the 22kHz I mentioned earlier is obviously 24 kHz. Anyway, if you find any more I would be interested to know myself, so I await further input from those that understand it better than I do. 73 Max On Sun, May 31, 2020 at 11:21 AM, Grant Rawstorn VK2LX wrote: Hi Max and Bill |
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Re: Easiest/cheapest way to 6m/2m/70cm?
Max
Yes, indeed Tom. Remember them like it was yesterday!
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Max On Sun, May 31, 2020 at 12:47 PM, Tom Crosbie G6PZZ wrote:
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Re: Easiest/cheapest way to 6m/2m/70cm?
Tom Crosbie G6PZZ
In days of old, we’d have turned to Microwave Modules…
73 Tom G6PZZ Nr Chesterfield | NE Derbyshire | UK | IO93he HF250 | RSPdx | Sentinel 4 | RM50 | TR2
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Max
Sent: 31 May 2020 11:10 To: main@SDR-Radio.groups.io Subject: [SDR-Radio] Easiest/cheapest way to 6m/2m/70cm?
I have Hermes Lite 2 which seems now to be working extremely well with SDRC as a very effective HF station and GC HF receiver. |
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Re: CW Skimmer decoded bandwidth
Hi Paul
sampling rate range min 11025, max 192000 min bits 8 max bits 32 cheers Grant |
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Re: CW Skimmer decoded bandwidth
Hi Max and Bill
It appears to me that when configured in Softrock-IF mode CW Skimmer defaults to 48KHz sampling (even with 192 selected) and it is only possible to see 24 KHz of decoded bandwidth. Bill am I right in assuming that you are not using Softrock-IF as the selected radio in CWS? Cheers Grant |
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