eHam
eHam Forums => QRP => Topic started by: K4BDA on November 27, 2022, 04:15:49 PM
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I just bought a great SDR receiver and need a transmitter to go with it.
I've Googled for a transmitter but there is so much clutter online I thought I'd ask for suggestions...
1 - What 5-watt +/- fully assembled HF CW transmitters are available?
2 - What kits would you suggest if I decide to build it?
3 - Any that do both CW & SSB ?
Thanks for any help.
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FWIW: I'm not aware of any fully assembled HF 5 watt transmitters out there. Not saying there aren't any, but doubt it. Can't imagine too much of a market. As you probably no well there are lots of QRP transceivers.
If you wanted something cheap and easy to experiment with and didn't mind sniffing some solder I would recommend NM0S's NS-40 5 watts transmitter. It's a very easy build, few parts, some ingenious design and is available through his website: http://nm0s-electronics.com/ns40.html. This is crystal controlled but a handful of cheap crystals will give you some leeway.
WB0FDJ Doc 73
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There is an Icom IC-703, 160m thru 6m, 10 watts I think, for sale on eHam.net for $500+. I had one mobile years ago, very nice package - I think the 703 also contains the antenna tuner - same radio as the IC-706 but without the power amplifier. Good luck in your search. 73 de Jim - K4LIX
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Try the NS40 qrp transmitter. It's on ebay at 20 USD. Look also the full coverage cw/ssb uBitx https://www.hfsignals.com/index.php/ubitx-v6-buy-the-full-kit/. The Kanga RXTX switchbox or MFJ switchbox might be needed in both cases. Look also to old transceivers like the IC751A or 765 that I guess they even have separate outputs for receivers. I have a drake tube transmitter that obviously has the separate RX port as well.
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I just bought a tr(usdx) on line fully assembled for about $40. After researching it I found that there a a ton of Chinese clones available, but I decided to buy from a dealer approved by the ham who developed the system, DL2MAN ( a google search will find his website). I can't give a review because I haven't tried it yet. Shipping was from NJ and very quick. It covers 20 30 40 80, but there is a classic version that does 15 20 40 80, but I don't know if its sold that way or you have to work on it. AM SSB CW.
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Gotta budget?
New or used?
-Mike.
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WB0FDJ and KD7RDZI2,
I'll check out the NM0S's NS-40.
- That said I'm hopeful to find something that works at lease 80 thru 20 meters. Maybe the NS-40 can be modified for other bands.
KD2HCU,
I couldn't find a place to buy the tr(usdx) fully assembled. Can you give me a link?
I went to the DL2MAN website but saw no fully assembled units for sale... unless I misssed.
- Also wonder if it is one frequency per band or a built in VFO?
- And, it say's does CW & SSB... is that transmit and receive SSB or what?
WA3SKN,
- New or Used OK.
- Regarding price... I see kits from $20 to about $40 online... but I prefer fully assembled and tested so, maybe a little more...
That said, KD2HCU just bought a fully-assembled tx(usdx) online for 40-bucks.
Thanks for the suggestions folks... keep 'em commin'.
de K4BDA
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The (tr)usdx is normally about $138-160 assembled, $88 as a kit.
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I couldn't find a place to buy the tr(usdx) fully assembled. Can you give me a link?
The (tr)uSDX website has a list of "official" suppliers here:
https://dl2man.de/where-to-buy-trusdx/ (https://dl2man.de/where-to-buy-trusdx/)
There should be a link there for an approved eBay vendor that sells both kits and fully assembled transceivers for about $140 to $145. (select fully assembled vs. kit via a drop-down on eBay)
I ordered one from the listed eBay vendor. The (tr)uSDX unit I received puts out a clean 5W signal.
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It may be a good reminder at this point to the hear how the originators of the (tr)uSDX sees these rigs. In this video, one of the originators at about 49:30 minutes into the video says “you’re not buying a completed commercial rig…” referring to the assembled version.
https://www.youtube.com/watch?v=nBPIdE0tRo0
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https://www.amazon.com/dp/B0BJ247SNL/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B0BJ247SNL&pd_rd_w=FF3TM&content-id=amzn1.sym.46bad5f6-1f0a-4167-9a8b-c8a82fa48a54&pf_rd_p=46bad5f6-1f0a-4167-9a8b-c8a82fa48a54&pf_rd_r=7XGBQX028XNH2WM9J8SF&pd_rd_wg=MJR7b&pd_rd_r=096ae7f4-feec-4183-b4a4-8da10ef7d28b&s=aht&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWw&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUE2QUIyNzIzRkM1WUEmZW5jcnlwdGVkSWQ9QTA5NDgxNzQzVlVFRlQyTldFUDg4JmVuY3J5cHRlZEFkSWQ9QTA3NDcwMDcxUTJPOFdSWFJLOU9aJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==