<< I did some tests woith pre-amps and found out that most simple designs have a too poor IM behaviour and make things worse instead of better. If I would design one I would primarily aim at a high I
<< Hi LF-ers... I need an mixer SBL-3 DBM from Mini Circuit. Any idea where to buy it ? Thank you... 73 de Rich OM2TW Most Mini Circuits distributors take credit cards and accept small orders with fr
Hi All. The RSGB 'VHF' rally at Bletchley is this weekend. Is anyone from the reflector going? Perhaps we could meet up for an LF chat, althought that would probably be interpreted as 6m among the 'm
<< As one interested in propagation, it would be interesting to schedule 'Cumulatives' at different hours to probe DX possibilities at times that probably haven't been explored. I am sure Christer an
Hi LF-ers... I want the 32 PPR ENCODER for my DDS. I can't find it in OM/OK/OE. Can you help me please ? Rich OM2TW Haven't checked the full range, but the RS Components part I use is 24PPR and costs
<< One option would be to use the TC4428 driver chip. This has one inverting and one non inverting driver. Drive both inputs in parallel and connect the FET driver transformer primary, now with twice
<< Thanks David for your help. It might be better sent via ordinary mail. I owe you a pint when I see you at Donnington later on in the year. Address 2 Wordsworth Close, Scalby, Scarborough, YO13 OSN
<< Hi All Sorry not LF. Does anyone have a cct diagram of a Microwave Modules 2m 100w lin amp type MML 144/100-S. Yes, I have that circuit diagram. (with a SRF1397 as the amplifer?) Would you like a
<< Recent letters from G8RW describe continuing QRM problems on 136 kHz from an NTL cable television interface installed in a neighbour's house. Bob has gone to great lengths to reduce this continuou
<< Hi Dick, Are you able to send the GIF as a standard file attachment? I have to reject embedded images in e-mail, but would be glad to download separate attachments. Me too. Embedded files are dele
Hello Jim . On Tuesday morning I heard you on 73 Khz RST339 . Altogether I heard four stations but only yourself and G3AQC positively identified . One of the unreadble sigs was probably someone calli
<< My problem is, what do I replace it with. Has anyone recently installed a modern TV that does not cause QRM on 136 ? It would seem like "self mutilation" (Selbst-Verstuemmelung) to retain this equ
QST this month has a lead feature on the AMRAD active antenna. The 7 page colour article is given a front cover 'lead' showing the antenna with a radio tuned to 136.75 together with a laptop running
With apologies to the reflector. Rich. Thank you for your letter and order for the DDS PCB etc. Unfortunately you didn't include your address and there has been no reply from your e-mail. Can you con
In a message dated 9/28/01 2:52:37 PM GMT Daylight Time, [email protected] writes: Many thanks to everyone interested in more tests this winter, Jon W1HJ and John W1TAG have expressed an i
In a message dated 9/24/01 12:47:15 PM GMT Daylight Time, [email protected] writes: Hello David, If nobody turns up with the manual you could give it a try at one of the addresses you ca
Hello All. I made an unexpected purchase at the Leicester rally last weekend. I wonder if anyone has any idea where I could find either an operators or service manual for an Anritsu MS62B Specrum Ana
<< Hi from Iowa, USA, EN31do This my seem a silly question, but I am curious. How is the audio quality of European LW BC stations? The bandwidth percentage is really something on those frequencies. D
In a message dated 10/19/01 1:36:29 PM GMT Daylight Time, [email protected] writes: As an amateur with a QTH only a few miles north of Watford, my budget </color>for LF experiments<color><param>
In a message dated 10/14/01 3:39:55 PM GMT Daylight Time, [email protected] writes: ! And of course I would never use it to claim for QSOs I could not make using my own receiver. 73s Dave G
