THP 1.2 kFX Linearity Issues

Anyone got any idea what might cause this with a THP 1.2 kFX?  The first screenshot has the amp in line, the later one does not.


Further Confirmation: HAM Radio Currently Permitted in Turkey

Tevfik TA1HZ (part of the TC Special Wireless Activity Team TCSWAT) was kind enough to email me the following information:

“Dear OM,

as of this time there is no curfew imposed on amateur radio in Turkey. The country is now under “extraordinary circumstances law” but BTK The Communications Authority has not released any announcement about ham radio restrictions. Some local professional radio and tv stations have their licences revoked but there is no information about any restrictions for amateur radio. If I recieve any info I will share it with you. Till then 73.”

It would seem that someone is behind an elaborate hoax, and that the reports that Turkish Ham Radio operators have had their licences revoked is completely untrue.  Whilst this is good news for all, I am a little dismayed to find out that someone would take advantage of the recent unrest in Turkey by creating this hoax.


Exclusive! Turkish Amateur Licences NOT revoked: TA1ED

I recently received this response to my posts covering the story that Turkish Ham licences have been revoked:

Good Morning from Turkey not correct news, life is proceeding normally. best regards from TA


I would like to thank Metin TA1ED for taking the time to let us know that Hams are currently unaffected in Turkey, despite the recent reports to the contrary.

Another Turkish Ham, Osman TA5AOD has also stated that reports are false:

Osman Doruk ·

This news is big lie. 73 from Turkey. TA5AOD

I am sure it is a very tense time right now in Turkey, and on behalf of the world wide community I’d like to state that our thoughts are with you and we hope you are safe.



Translated Announcement from Turkish Regulator RTUK


“Radio and Television Supreme Council , 19.07.2016 date of his in the coup attempt in the extraordinary meeting feto / PCM organization with iltisakl , the associated and support are found to be in all the media service provider organizations ( radio and television organizations) unanimously canceled all publishing rights and licenses in the RTÜK before It has . It respectfully informs the public.”

It would seem all licences issued by the RTUK have officially been cancelled.  If you can offer a better translation / confirm the wording, please comment below.

Source:, accessed 21/07/2016.

Original Text:

Radyo ve Televizyon Üst Kurulu, 19.07.2016 tarihinde yaptığı olağanüstü toplantıda darbe teşebbüsünde bulunan FETÖ/PDY örgütü ile iltisaklı, ilişkili ve destek içinde olduğu tespit edilen tüm medya hizmet sağlayıcı kuruluşların (radyo ve televizyon kuruluşları) RTÜK nezdindeki bütün yayın hak ve lisanslarını oybirliğiyle iptal etmiştir.

Kamuoyuna saygıyla duyurulur.

[HOAX] Turkey Revokes Ham Radio Licences




Turkey gouvernement revokes 3213 ham radio licenses
It has been confirmed by  Supreme Council of radio and television of Turkey (RTUK) the news that Mr. Erdogan – the president of Turkey has revoked 3213 national ham radio licenses. The HF radio in Turkey is now silent. No transmissions are allowed.


Following the coup d’etat – of July 5th – many things are changing in Turkey.  TV , Radio licenses have been cancelled and this involved also our colleagues : ham radio amateurs. The number of amateur radio operators in Turkey is not too much, but according to the site it looks like that around 3000 licenses have been revoked. Who’s transmitting outside turkey without licence should be considered a pirate – said Mr Erdogan.

The Supreme Council of radio and television of Turkey (RTUK) has cancelled the licenses of over 20 radio and television broadcasters as well ham radio operators.

The Telsiz ve Radyo Amatörleri Cemiyeti (TRAC)  is the national non-profit organization for amateur radio enthusiasts in turkey.  The TRAC was founded in 1962 as the Türkiye Radyo Amatörleri Cemiyeti, adopting its current name in 1980. It’s located in Istanbul, with branches in 44 locations across Turkey. TRAC is the national member society representing Turkey in the IARU. Now, it has been closed down.

We look forward to have news from Turkey ham radio league.

Turkey’s coup in numbers

21,000 private teachers have licences removed
15,000 suspended from education ministry
8,000 police officers detained or suspended
6,000 soldiers detained
1,500 staff at Ministry of Finance dismissed
3213 ham radio operators with license revoked.
2745 judges dismissed
1,577 deans – Education board demands resignation
492 sacked from Religious Affairs Directorate
399 from Ministry of Family and Social Policies stripped of responsibilities
257 fired from the prime minister’s office
100 intelligence officials sacked
47 district governors dismissed
30 provincial governors dismissed
20 news websites blocked

My Current Transmitter Stack

I’m quite pleased with my current setup 🙂  It consists of a Palstar AT2K Antenna Tuner, and an Ameritron AL-572 Amplifier.  The amplifier has a lot more head room than the AL-811 I used to run, which is nice as tube life should be significantly longer, which is a good thing when you’re as addicted to radio as I am!  The meters are the CN-801 series from Daiwa.


What should a New Ham look for in their first transceiver?

As a new Ham, you should be playing with every radio you can get your hands on before you buy one.

You should ask these questions:
-How easy is it to adjust TX power level (if you have a tuner or amp, you will do this often)
-How easy is the DSP to use, and how well does it work? (NB, NR & IF Shift)
-How many antenna connectors does it have?  (Do you need more than one?)
-Does it have an internal ATU?
-Is it nice to listen to? (You’re going to spend a bit of time doing that!)
-Is the radio big enough for shack use comfortably? (the FT-857D is a pain to use)
-Does it have a built in Equalizer, for transmit and receive?
-Does the radio have a reputation for ‘sounding good’?  (the IC-7300 definitely does)
-Are there any extras?  Eg, real time band scope?
-Does it come with all the filters you need, or are they extras?  Eg, the K3
-Can it be plugged into a computer via USB for Audio & Control? (you won’t need a digital mode interface then)
-How long is the warranty?  Is there a local factory authorized service center? (accidents happen)
-Does it decode RTTY? CW without a pc?
-Can it SEND RTTY? CW without a pc?
-Does it have any recording features?
-Does it have a Voice Keyer (eg, you record ‘CQ 40’ and then just press a button)

Don’t worry about Sherwood lists, or other comparisons that focus on a single aspect of a transceiver.  Those appraisals are targeted to specific audiences (eg, CW Contesters).

Your first radio should be an ‘all rounder’ – if you later on find you’re only interested in CW Contesting, then sure, buy a radio that excels at that at the expense of other features.

IMHO, the current best entry level rigs are the Icom IC-7300 and Kenwood TS-590SG.  The reasons for this are as follows:
-Both have receiver performance beyond their price class
-Both have USB connectors so you can plug them into your computer and use digital modes without other adapters
-Both can do voice keying (with the optional board installed in the kenwood)
-Both have built in Antenna Tuners.
-Both are decent enough in size to use as shack radios, and both offer decent ergonomics
-Both get pretty nice sound quality reports on air
-Both are pretty nice to listen too
-Both have the ‘basics’ like IF DSP (NR & NB), IF Shift
-Both have a built in compressor, and adjustable TX bandwidth & equalization

There are a few significant differences:
The TS-590SG has 2 antenna connectors, and a really handy ‘tune’ button (transmits a low power carrier).
The IC-7300 has an exceptional real time spectrum scope & audio scope.

I’ve used both – I like both very much.  Personally, the real time spectrum scope and the fact the Icom service center is 5 minutes drive from my workplace pushed me towards the IC-7300.